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Chen J, Yuan C, Zhang Y, Wu J, Chen G, Chen S, Wu H, Zhu H, Ye Y. Dredging wastewater discharge from shrimp ponds affects mangrove soil physical-chemical properties and enzyme activities. Sci Total Environ 2024; 926:171916. [PMID: 38522536 DOI: 10.1016/j.scitotenv.2024.171916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2023] [Revised: 03/19/2024] [Accepted: 03/21/2024] [Indexed: 03/26/2024]
Abstract
Dredging wastewater discharge is a significant environmental concern for mariculture near mangrove ecosystems. However, little attention has been paid to its effects on the soil physical-chemical properties and enzyme activities in mangrove habitats. This study compared the soil physical-chemical properties and enzyme activities in the polluted area that received dredging wastewater from a shrimp pond with those in the control area without wastewater to explore the effects of wastewater discharge on the soil physical-chemical properties and enzyme activities. Variations in soil physical-chemical properties and enzyme activities across different tidal flat areas and depths were also examined. The polluted area exhibited lower soil salinity (10.47 ± 0.58 vs. 15.64 ± 0.54) and moisture content (41.85 ± 1.03 % vs. 45.81 ± 1.06 %) than the control area. Wastewater discharge increased soil enzyme activities, (acid phosphatase, protease, and catalase), resulting in higher inorganic nitrogen (13.20 ± 0.00 μg g-1 vs. 11.60 ± 0.03 μg g-1) but lower total nitrogen (0.93 ± 0.01 mg g-1 vs. 1.62 ± 0.11 mg g-1) in the contaminated zone. From the control to polluted area, there was an approximate increase of 0.43 and 0.83 mg g-1 in soil total phosphorus and soluble phosphate, driven by increased acid phosphatase. However, soil humus and organic matter decreased by 0.04 and 1.22 %, respectively, because of wastewater discharge. The impact of wastewater discharge on the soil physical-chemical properties and enzyme activities was most pronounced in the landward and surface soil layers (0-5 cm). The results showed that wastewater discharge altered soil physical-chemical properties and enzyme activities, accumulating soil bioavailable nutrients (inorganic nitrogen and soluble phosphate), but at the cost of reduced soil quality, especially organic matter, further adversely affecting the overall health of mangrove ecosystems. Prioritizing the management of wastewater discharged from mariculture adjacent to mangrove forests is crucial for mangrove conservation.
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Affiliation(s)
- Jiahui Chen
- Fujian Provincial Key Laboratory of Marine Ecological Conservation and Restoration, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, Fujian, China; Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, College of the Environment and Ecology, Xiamen University, Xiamen, Fujian, China; Guangxi Beihai Monitoring and Experimental Station of Marine Ecosystems, Third Institute of Oceanography, Ministry of Natural Resources, Beihai, Guangxi, China
| | - Chengyu Yuan
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, College of the Environment and Ecology, Xiamen University, Xiamen, Fujian, China; Fujian Key Laboratory of Coastal Pollution Prevention and Control, Xiamen University, Xiamen, Fujian, China
| | - Yang Zhang
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, College of the Environment and Ecology, Xiamen University, Xiamen, Fujian, China
| | - Jiajia Wu
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, College of the Environment and Ecology, Xiamen University, Xiamen, Fujian, China; Fujian Key Laboratory of Coastal Pollution Prevention and Control, Xiamen University, Xiamen, Fujian, China
| | - Guangcheng Chen
- Fujian Provincial Key Laboratory of Marine Ecological Conservation and Restoration, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, Fujian, China; Guangxi Beihai Monitoring and Experimental Station of Marine Ecosystems, Third Institute of Oceanography, Ministry of Natural Resources, Beihai, Guangxi, China.
| | - Shunyang Chen
- Fujian Provincial Key Laboratory of Marine Ecological Conservation and Restoration, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, Fujian, China; Guangxi Beihai Monitoring and Experimental Station of Marine Ecosystems, Third Institute of Oceanography, Ministry of Natural Resources, Beihai, Guangxi, China
| | - Hongyi Wu
- Fujian Provincial Key Laboratory of Marine Ecological Conservation and Restoration, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, Fujian, China
| | - Heng Zhu
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, College of the Environment and Ecology, Xiamen University, Xiamen, Fujian, China
| | - Yong Ye
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, College of the Environment and Ecology, Xiamen University, Xiamen, Fujian, China; Fujian Key Laboratory of Coastal Pollution Prevention and Control, Xiamen University, Xiamen, Fujian, China.
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Lin H, Li X, Hu W, Yu S, Li X, Lei L, Yang F, Luo Y. Landscape and risk assessment of microplastic contamination in farmed oysters and seawater along the coastline of China. J Hazard Mater 2024; 470:134169. [PMID: 38565022 DOI: 10.1016/j.jhazmat.2024.134169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Revised: 02/05/2024] [Accepted: 03/28/2024] [Indexed: 04/04/2024]
Abstract
Microplastic (MP) pollution poses a significant threat to marine ecosystem and seafood safety. However, comprehensive and comparable assessments of MP profiles and their ecological and health in Chinese farming oysters are lacking. This study utilized laser infrared imaging spectrometer (LDIR) to quantify MPs in oysters and its farming seawater at 18 sites along Chinese coastlines. Results revealed a total of 3492 MPs in farmed oysters and seawater, representing 34 MP types, with 20-100 µm MP fragments being the dominant. Polyurethane (PU) emerged as the predominant MP type in oysters, while polysulfones were more commonly detected in seawater. Notably, oysters from the Bohai Sea exhibited a higher abundance of MPs (13.62 ± 2.02 items/g) and estimated daily microplastic intake (EDI, 2.14 ± 0.26 items/g/kg·bw/day), indicating a greater potential health risk in the area. Meanwhile, seawater from the Yellow Sea displayed a higher level (193.0 ± 110.7 items/L), indicating a greater ecological risk in this region. Given the pervasiveness and abundance of PU and its high correlation with other MP types, we proposed PU as a promising indicator for monitoring and assessing the risk MP pollution in mariculture in China. These findings provide valuable insights into the extent and characteristics of MP pollution in farmed oysters and seawater in China.
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Affiliation(s)
- Huai Lin
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environment, Nanjing University, Nanjing 210093, China; Shenzhen Research Institute of Nanjing University, Shenzhen 518000, China
| | - Xin Li
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environment, Nanjing University, Nanjing 210093, China
| | - Wenjin Hu
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environment, Nanjing University, Nanjing 210093, China
| | - Shenbo Yu
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environment, Nanjing University, Nanjing 210093, China
| | - Xi Li
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environment, Nanjing University, Nanjing 210093, China
| | - Liusheng Lei
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environment, Nanjing University, Nanjing 210093, China
| | - Fengxia Yang
- Agro-Environmental Protection Institute, Ministry of Agriculture and Tural Affairs, Tianjin 300191, China.
| | - Yi Luo
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environment, Nanjing University, Nanjing 210093, China.
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Bastolla CLV, Guerreiro FC, Saldaña-Serrano M, Gomes CHAM, Lima D, Rutkoski CF, Mattos JJ, Dias VHV, Righetti BPH, Ferreira CP, Martim J, Alves TC, Melo CMR, Marques MRF, Lüchmann KH, Almeida EA, Bainy ACD. Emerging and legacy contaminants on the Brazilian southern coast (Santa Catarina): A multi-biomarker approach in oysters Crassostrea gasar (Adanson, 1757). Sci Total Environ 2024; 925:171679. [PMID: 38494031 DOI: 10.1016/j.scitotenv.2024.171679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2023] [Revised: 03/06/2024] [Accepted: 03/10/2024] [Indexed: 03/19/2024]
Abstract
Coastal environments, such as those in the Santa Catarina State (SC, Brazil), are considered the primary receptors of anthropogenic pollutants. In this study, our objective was to evaluate the levels of emerging contaminants (ECs) and persistent organic pollutants (POPs) in indigenous Crassostrea gasar oysters from different regions of SC coast in the summer season (March 2022). Field collections were conducted in the São Francisco do Sul, Itajaí, Florianópolis and Laguna coastal zones. We analyzed the bioaccumulation levels of 75 compounds, including antibiotics (AB), endocrine disruptors (ED), non-steroidal anti-inflammatory drugs (NSAIDs), polycyclic aromatic hydrocarbons (PAHs), polychlorinated biphenyls (PCBs) and pesticides. Furthermore, we assessed biomarker responses related to biotransformation, antioxidant defense, heat shock protection and oxidative damage in oysters' gills. Prevalence of ECs was observed in the central and southern regions, while the highest concentrations of POPs were detected in the central-northern regions of SC. Oysters exhibited an induction in biotransformation systems (cyp2au1 and cyp356a1, sult and GST activity) and antioxidant enzymes activities (SOD, CAT and GPx). Higher susceptibility to lipid peroxidation was observed in the animals from Florianópolis compared to other regions. Correlation analyses indicated possible associations between contaminants and environmental variables in the biomarker responses, serving as a warning related to climate change. Our results highlight the influence of anthropogenic activities on SC, serving as baseline of ECs and POPs levels in the coastal areas of Santa Catarina, indicating more critical zones for extensive monitoring, aiming to conserve coastal regions.
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Affiliation(s)
- Camila L V Bastolla
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry (LABCAI), Center for Biological Sciences, Federal University of Santa Catarina (UFSC), Florianópolis, Santa Catarina, Brazil
| | - Fernando C Guerreiro
- Department of Natural Sciences, Blumenau Regional University Foundation, FURB, Blumenau, Santa Catarina, Brazil
| | - Miguel Saldaña-Serrano
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry (LABCAI), Center for Biological Sciences, Federal University of Santa Catarina (UFSC), Florianópolis, Santa Catarina, Brazil
| | - Carlos H A M Gomes
- Marine Mollusc Laboratory (LMM), Department of Aquaculture, Center for Agricultural Sciences, Federal University of Santa Catarina, UFSC, Florianópolis, Santa Catarina, Brazil
| | - Daína Lima
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry (LABCAI), Center for Biological Sciences, Federal University of Santa Catarina (UFSC), Florianópolis, Santa Catarina, Brazil
| | - Camila F Rutkoski
- Department of Natural Sciences, Blumenau Regional University Foundation, FURB, Blumenau, Santa Catarina, Brazil
| | - Jacó J Mattos
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry (LABCAI), Center for Biological Sciences, Federal University of Santa Catarina (UFSC), Florianópolis, Santa Catarina, Brazil
| | - Vera Helena V Dias
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry (LABCAI), Center for Biological Sciences, Federal University of Santa Catarina (UFSC), Florianópolis, Santa Catarina, Brazil
| | - Bárbara P H Righetti
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry (LABCAI), Center for Biological Sciences, Federal University of Santa Catarina (UFSC), Florianópolis, Santa Catarina, Brazil
| | - Clarissa P Ferreira
- Department of Fisheries Engineering and Biological Sciences, State University of Santa Catarina, UDESC, Laguna, Brazil
| | - Julia Martim
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry (LABCAI), Center for Biological Sciences, Federal University of Santa Catarina (UFSC), Florianópolis, Santa Catarina, Brazil
| | - Thiago C Alves
- Department of Natural Sciences, Blumenau Regional University Foundation, FURB, Blumenau, Santa Catarina, Brazil
| | - Claudio M R Melo
- Department of Fisheries Engineering and Biological Sciences, State University of Santa Catarina, UDESC, Laguna, Brazil
| | - Maria R F Marques
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry (LABCAI), Center for Biological Sciences, Federal University of Santa Catarina (UFSC), Florianópolis, Santa Catarina, Brazil
| | - Karim H Lüchmann
- Department of Fisheries Engineering and Biological Sciences, State University of Santa Catarina, UDESC, Laguna, Brazil
| | - Eduardo A Almeida
- Department of Natural Sciences, Blumenau Regional University Foundation, FURB, Blumenau, Santa Catarina, Brazil
| | - Afonso C D Bainy
- Laboratory of Biomarkers of Aquatic Contamination and Immunochemistry (LABCAI), Center for Biological Sciences, Federal University of Santa Catarina (UFSC), Florianópolis, Santa Catarina, Brazil.
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Suteja Y, Purwiyanto AIS, Purbonegoro T, Cordova MR. Spatial and temporal trends of microplastic contamination in surface sediment of Benoa Bay: An urban estuary in Bali-Indonesia. Mar Pollut Bull 2024; 202:116357. [PMID: 38643587 DOI: 10.1016/j.marpolbul.2024.116357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Revised: 04/04/2024] [Accepted: 04/06/2024] [Indexed: 04/23/2024]
Abstract
This study aims to explore microplastic contamination in the sediments of Benoa Bay. Eight locations were sampled, with four duplications denoting the rainy and dry seasons. Based on observations, the microplastic concentration varied from 9.51 to 90.60 particles/kg with an average of 31.08 ± 21.53 particles/kg. The area near the landfill had the highest abundance, while the inlet and center of Benoa Bay and the Sama River had the lowest concentration. The fragments (52.2 %) and large microplastic sizes (64.7 %) were the most documented particles. We also identified 17 polymers, which dominated (37.5 %) by polyethylene, polypropylene, and polystyrene. There were no appreciable variations in abundance between seasons, although there were substantial variations in shape and size. Comprehensive investigation, adequate policies, continuous monitoring, and reducing waste from land- and sea-based sources that engage various stakeholders must be implemented urgently to prevent the release of microplastic into the aquatic ecosystem.
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Affiliation(s)
- Yulianto Suteja
- Marine Science Department, Faculty of Marine and Fisheries, Udayana University Indonesia. Jl. Raya Kampus Universitas Udayana, Bukit Jimbaran, Bali, Indonesia.
| | - Anna Ida Sunaryo Purwiyanto
- Marine Science Department, Mathematics and Natural Science Faculty, Sriwijaya University, Palembang, Indonesia.
| | - Triyoni Purbonegoro
- Research Center for Oceanography, Indonesian National Research and Innovation Agency, Jl. Pasir Putih 1, Ancol Timur, Jakarta, Indonesia.
| | - Muhammad Reza Cordova
- Research Center for Oceanography, Indonesian National Research and Innovation Agency, Jl. Pasir Putih 1, Ancol Timur, Jakarta, Indonesia.
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Chi L, Jiang K, Ding Y, Wang W, Song X, Yu Z. Uncovering nutrient regeneration, transformation pattern, and its contribution to harmful algal blooms in mariculture waters. Sci Total Environ 2024; 919:170652. [PMID: 38331282 DOI: 10.1016/j.scitotenv.2024.170652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 01/21/2024] [Accepted: 02/01/2024] [Indexed: 02/10/2024]
Abstract
The prevalence of harmful algal blooms (HABs), especially in mariculture waters, has become a concern for environmental and human health worldwide. Notably, the frequent occurrence of HABs relies upon a substantial supply of available nutrients, which are influenced by nutrient recycling. However, nutrient regeneration, transformation pattern, and their contribution to HABs in mariculture waters remain largely unknown. In this study, by combining field investigation and incubation experiments from June to September 2020, the temporal variations in nutrients and algal composition were revealed. In addition, the nutrient regeneration and assimilation rates in the water column during two continuous algal blooms were measured. The results indicated that organic nutrients, which were the dominant components, strongly stimulated nutrient regeneration. High regeneration rates were observed, with dissolved inorganic nitrogen (DIN) and phosphorous (DIP) regeneration rates ranging from 0.25 to 2.64 μmol/L·h and 0.01 to 0.09 μmol/L·h, respectively. Compared to the direct uptake of organic nutrients, the rapid regeneration of inorganic nutrients played a vital role in sustaining continuous algal blooms, as regenerated DIN contributed 100 % while regenerated DIP contributed 72-100 % of the algal assimilation demand. Furthermore, the redundancy analysis and inverse solution equations indicated that different N transformation patterns and utilization strategies occurred during Heterosigma and Nannochloris blooms. The shorter N recycling pathway and faster NH4+ supply rates provided favorable conditions for the dominance of Nannochloris over Heterosigma, which had a preference for the uptake of NO3-. In conclusion, we propose that nutrient regeneration is a key maintenance mechanism underlying the maintenance of continuous algal blooms, and different N transformation patterns and utilization strategies regulate algal communities in mariculture waters.
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Affiliation(s)
- Lianbao Chi
- CAS Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China
| | - Kaiqin Jiang
- CAS Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yu Ding
- Weihai Vocational College, Weihai 264200, China
| | - Wentao Wang
- CAS Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China
| | - Xiuxian Song
- CAS Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China; University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Zhiming Yu
- CAS Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China; University of Chinese Academy of Sciences, Beijing 100049, China
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Olsen MS, Mikkelsen E, Alexander KA, Thorarinsdottir R, Osmundsen TC. Survey data on public perceptions of salmon aquaculture industry in Norway, Tasmania, and Iceland. Data Brief 2024; 53:110067. [PMID: 38317737 PMCID: PMC10838686 DOI: 10.1016/j.dib.2024.110067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Revised: 01/05/2024] [Accepted: 01/10/2024] [Indexed: 02/07/2024] Open
Abstract
This article presents data collected using online surveys conducted in Norway, Tasmania (Australia) and Iceland, with the aim of exploring public perceptions of the salmon aquaculture industry in each country. A total of 2085 survey participants provided responses, with 1183 from Norway, 406 from Tasmania, and 496 from Iceland. The survey encompassed various aspects of attitudes towards and perceptions of the aquaculture industry. Participants were asked questions regarding their environmental concerns, trust in governance and management, and knowledge of the aquaculture industry in their respective country. Additionally, attitudes towards the industry were explored using questions related to preferences regarding information sources, perceptions of industry contributions, distribution of economic benefits, financial significance in local community, sustainability, and acceptance and tolerance of industry production. Respondents were also given the opportunity to provided text comments regarding the areas in which they thought the industry should become more sustainable. Demographic data on the respondents were collected, directly from the participants and from existing panel data from the survey company. However, the dataset excludes information on residence on the local level (postal code) to ensure anonymity of the respondents. The survey design was created by the SoLic-project (2019-2022, supported by the Research Council of Norway, no. 295114), drawing on the social license literature and the team's extensive research experience on topics related to the aquaculture industry, social acceptance, and legitimacy. The dataset presented in the article combines raw survey data with additional analysis data derived from grouping answer options or recoding data variables. The data provided in this article offers a valuable resource for researchers, industry representatives, public authorities, and other parties interested in salmon aquaculture. It enables comparative analyses and further investigations into public perceptions in Norway, Tasmania, and Iceland. This dataset can be used to explore a wide range of topics and extend the research conducted by the SoLic project team.
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Affiliation(s)
| | | | - Karen A Alexander
- Centre for Marine Socioecology, University of Tasmania, Hobart, Tasmania 7001, Australia
- Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, Tasmania 7001, Australia
- International Centre for Island Technology, Heriot Watt University, Back Road, Stromness, Orkney KW16 3AW, UK
| | - Ragnheidur Thorarinsdottir
- Rector's Office, Agricultural University of Iceland, 311 Hvanneyri, Iceland
- Faculty of Civil and Environmental Engineering, University of Iceland, 102 Reykjavik, Iceland
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Ismail ET, El-Son MAM, El-Gohary FA, Zahran E. Prevalence, genetic diversity, and antimicrobial susceptibility of Vibrio spp. infected gilthead sea breams from coastal farms at Damietta, Egypt. BMC Vet Res 2024; 20:129. [PMID: 38561778 PMCID: PMC10986055 DOI: 10.1186/s12917-024-03978-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2024] [Accepted: 03/15/2024] [Indexed: 04/04/2024] Open
Abstract
BACKGROUND Vibriosis is one of the most serious bacterial diseases and causes high morbidity and mortality among cultured sea breams. This study was undertaken to track the surveillance of Vibrio infection and its correlation to environmental factors. A total of 115 gilthead sea breams were collected seasonally from a private earthen pond fish farm in the Shatta area of Damietta, Egypt from September 2022 to July 2023. Physicochemical parameters of water were analyzed, and heavy metal levels were measured. The fish samples were subjected to clinical, bacteriological, Enterobacterial Repetitive Intergenic Consensus (ERIC) fingerprinting, and hematoxylin and Eosin histopathological staining. RESULTS The results revealed significant variations in the water quality parameters over different seasons, in addition to an increase in heavy metals. Naturally infected fish showed external signs and postmortem lesions that were relevant to bacterial infection. Two dominant Vibrio subspecies of bacteria were identified: V. alginolyticus (205 isolates) and V. fluvialis (87 isolates). PCR confirmed the presence of V. alginolyticus using the species-specific primer collagenase at 737 bp. The highest prevalence of V. alginolyticus was detected during the summer season (57.72%), and the lowest prevalence was observed in autumn (39.75%). The correlation analysis revealed a positive relationship between V. alginolyticus and water temperature (r = 0.69). On the other hand, V. fluvialis showed a high prevalence during the autumn season (25.30%) and the lowest prevalence during the summer season (10.56%), where it was negatively correlated with water temperatures (r =-0.03). ERIC fingerprinting showed genetic variation within the Vibrio isolates. Antimicrobial susceptibility testing revealed sensitivity to ciprofloxacin and doxycycline, and resistance to amoxicillin and erythromycin. The multiple antibiotic resistance (MAR) index values for V. alginolyticus and V. fluvialis ranged from 0.3 to 0.7, with a multi-drug resistance pattern to at least three antibiotics. Histopathological alterations in the affected tissues revealed marked hemorrhage, vascular congestion, and hemosiderosis infiltration. CONCLUSION This study provides insights into the potential propagation of waterborne diseases and antibiotic resistance in the environment. Ensuring that the environment does not serve as a reservoir for virulent and contagious Vibrio species is a critical concern for regional aquaculture industries. Therefore, we recommend implementing environmental context-specific monitoring and surveillance tools for microbial resistance.
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Affiliation(s)
- Esraa Tawfeek Ismail
- Department of Aquatic Animal Medicine, Faculty of Veterinary Medicine, Mansoura University, Mansoura, 35516, Egypt
| | - Mai A M El-Son
- Department of Aquatic Animal Medicine, Faculty of Veterinary Medicine, Mansoura University, Mansoura, 35516, Egypt
| | - Fatma A El-Gohary
- Department of Hygiene and Zoonoses, Faculty of Veterinary Medicine, Mansoura University, Mansoura, 35516, Egypt
| | - Eman Zahran
- Department of Aquatic Animal Medicine, Faculty of Veterinary Medicine, Mansoura University, Mansoura, 35516, Egypt.
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Pessarrodona A, Howard J, Pidgeon E, Wernberg T, Filbee-Dexter K. Carbon removal and climate change mitigation by seaweed farming: A state of knowledge review. Sci Total Environ 2024; 918:170525. [PMID: 38309363 DOI: 10.1016/j.scitotenv.2024.170525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Revised: 12/31/2023] [Accepted: 01/26/2024] [Indexed: 02/05/2024]
Abstract
The pressing need to mitigate the effects of climate change is driving the development of novel approaches for carbon dioxide removal (CDR) from the atmosphere, with the ocean playing a central role in the portfolio of solutions. The expansion of seaweed farming is increasingly considered as one of the potential CDR avenues among government and private sectors. Yet, comprehensive assessments examining whether farming can lead to tangible climate change mitigation remain limited. Here we examine the results of over 100 publications to synthesize evidence regarding the CDR capacity of seaweed farms and review the different interventions through which an expansion of seaweed farming may contribute to climate change mitigation. We find that presently, the majority of the carbon fixed by seaweeds is stored in short-term carbon reservoirs (e.g., seaweed products) and that only a minority of the carbon ends up in long-term reservoirs that are likely to fit within existing international accounting frameworks (e.g., marine sediments). Additionally, the tiny global area cultivated to date (0.06 % of the estimated wild seaweed extent) limits the global role of seaweed farming in climate change mitigation in the present and mid-term future. A first-order estimate using the best available data suggests that, at present, even in a low emissions scenario, any carbon removal capacity provided by seaweed farms globally is likely to be offset by their emissions (median global balance net emitter: -0.11 Tg C yr-1; range -2.07-1.95 Tg C yr-1), as most of a seaweed farms' energy and materials currently depend on fossil fuels. Enhancing any potential CDR though seaweed farming will thus require decarbonizing of supply chains, directing harvested biomass to long-term carbon storage products, expanding farming outside traditional cultivation areas, and developing robust models tracing the fate of seaweed carbon. This will present novel scientific (e.g., verifying permanence of seaweed carbon), engineering (e.g., developing farms in wave exposed areas), and economic challenges (e.g., increase market demand, lower costs, decarbonize at scale), many of which are only beginning to be addressed.
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Affiliation(s)
- Albert Pessarrodona
- UWA Oceans Institute and School of Biological Sciences, University of Western Australia, Crawley, Western Australia 6009, Australia; Conservation International, Arlington, VA, USA; International Blue Carbon Institute, Singapore.
| | - Jennifer Howard
- Conservation International, Arlington, VA, USA; International Blue Carbon Institute, Singapore
| | - Emily Pidgeon
- Conservation International, Arlington, VA, USA; International Blue Carbon Institute, Singapore
| | - Thomas Wernberg
- UWA Oceans Institute and School of Biological Sciences, University of Western Australia, Crawley, Western Australia 6009, Australia; Institute of Marine Research, His, Norway
| | - Karen Filbee-Dexter
- UWA Oceans Institute and School of Biological Sciences, University of Western Australia, Crawley, Western Australia 6009, Australia; Institute of Marine Research, His, Norway
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Hou M, Zhang B, Zhou L, Ding H, Zhang X, Shi Y, Na G, Cai Y. Occurrence, distribution, sources, and risk assessment of organophosphate esters in typical coastal aquaculture waters of China. J Hazard Mater 2024; 465:133264. [PMID: 38113744 DOI: 10.1016/j.jhazmat.2023.133264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 12/02/2023] [Accepted: 12/12/2023] [Indexed: 12/21/2023]
Abstract
This study monitored 20 organophosphate esters (OPEs) in water and sediment from three typical mariculture bases (Yunxi Marine Ranching (YX), Hangzhou Bay (HZB), and Zhelin Bay (ZLB)) and Meiliang Bay (MLB) of Taihu Lake in China, focusing on the spatial distribution and sources of OPEs. Moreover, the occurrence and risk of OPEs in fishes from ZLB were evaluated. The ∑OPE concentrations in waters followed the order MLB (591 ng/L) > YX (102 ng/L) > HZB (70.0 ng/L) > ZLB (37.4 ng/L), with tri(1-chloro-2-propyl) phosphate (TCIPP), triethyl phosphate (TEP), and tri(2-chloroethyl) phosphate (TCEP) being the dominant OPEs. Significantly higher ∑OPE concentrations were found in sediment in MLB compared to the other three areas with similar levels. The decreasing concentrations of OPEs from nearshore to offshore areas in HZB and MLB indicated that terrigenous input is the main source of OPEs. The even distribution of OPEs in YX and ZLB combined with PCA analysis suggested ship traffic or aquaculture activities are also potential sources. The ∑OPE concentrations in fishes ranged from 0.551-2.45 ng/g wet weight, with TCIPP, tri-phenyl phosphate (TPHP), and TCEP being the main OPEs. Hydrophobicity was a key factor affecting the sediment-water distribution coefficients and the bioaccumulation factors of OPEs. The human exposure to OPEs through consumption of fishes from ZLB had a low health risk.
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Affiliation(s)
- Minmin Hou
- School of Environment, Hangzhou Institute for Advanced Study, UCAS, Hangzhou 310024, China; State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Bona Zhang
- School of Environment, Hangzhou Institute for Advanced Study, UCAS, Hangzhou 310024, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Longfei Zhou
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Hao Ding
- Key Laboratory of Environmental Pollution Control Technology of Zhejiang Province, Hangzhou 310007, China
| | - Xuwenqi Zhang
- Key Laboratory of Environmental Pollution Control Technology of Zhejiang Province, Hangzhou 310007, China
| | - Yali Shi
- School of Environment, Hangzhou Institute for Advanced Study, UCAS, Hangzhou 310024, China; State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Guangshui Na
- Yazhou Bay Innovation Institute/Hainan Key Laboratory for Coastal Marine Eco-environment and Carbon Sink/ College of Ecology and Environment, Hainan Tropical Ocean University, Sanya 572022, China.
| | - Yaqi Cai
- School of Environment, Hangzhou Institute for Advanced Study, UCAS, Hangzhou 310024, China; State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
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10
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Sui J, Zhang J, Yang X, Wu W, Deng C, Liu Y. Influence of the intensive mariculture on coastal sedimentary organic matter: Insight from size-fractionated particles. Mar Environ Res 2024; 195:106370. [PMID: 38295609 DOI: 10.1016/j.marenvres.2024.106370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Revised: 01/15/2024] [Accepted: 01/17/2024] [Indexed: 02/02/2024]
Abstract
A portion of carbon produced from shellfish and kelp cultivation is buried in sedimentary environment, and mariculture carbon sequestration potential is an important part of marine carbon sink and has attracted worldwide attention. Total organic carbon (TOC), total nitrogen (TN) and their stable isotopes (δ13C and δ15N), as well as the mass distribution of these size-fractionated particles were determined in order to study the distribution and sources of TOC in Sanggou Bay. Results showed that sediment organic matter has complex sources from kelp (30.4 %), marine phytoplankton (25.6 %), shellfish (23.7 %), terrestrial input (20.3 %), and mariculture activities of shellfish and kelp was the major component in surface sediment. Approximately 44-69 % of TOC was associated with the 16-32 μm fraction. Low δ13C (-22.1 to -15.1‰) and high δ15N (5.0-5.7‰) were observed in fine particles (<16 μm), indicating relatively high contribution of marine phytoplankton and mariculture derived organic carbon. On the contrary, relatively higher δ13C (-20.2 to -9.2‰) and lower values δ15N (-4.7 to 5.2‰) in coarse particles (>32 μm) suggested that sedimentary organic carbon might be influenced by some additional sources from terrestrial input or seaweed. The mass distribution, δ13C and δ15N of size-fractionated particles in sediments indicated that sediment was obviously redistributed under the condition of mariculture, and further suggested that mariculture derived organic matter have modified the distribution and sources of sedimentary organic matter. This study provided great insight into distribution and source of sedimentary organic carbon from the perspective of size-fractionated particles in mariculture area.
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Affiliation(s)
- Juanjuan Sui
- North Sea Environmental Monitoring Center, State Oceanic Administration, Qingdao, Shandong, 266033, China; Key Laboratory of Ecological Prewarning, Protection and Restoration of Bohai Sea, Ministry of Natural Resources, Qingdao, Shandong, 266033, China
| | - Jihong Zhang
- State Key Laboratory of Mariculture Biobreeding and Sustainable Goods, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, Shandong 266071, China; Laboratory for Marine Fisheries Science and Food Production Processes, Laoshan Laboratory, Qingdao, Shandong 266237, China.
| | - Xiaofei Yang
- North Sea Environmental Monitoring Center, State Oceanic Administration, Qingdao, Shandong, 266033, China; Key Laboratory of Ecological Prewarning, Protection and Restoration of Bohai Sea, Ministry of Natural Resources, Qingdao, Shandong, 266033, China
| | - Wenguang Wu
- State Key Laboratory of Mariculture Biobreeding and Sustainable Goods, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, Shandong 266071, China
| | - Chunmei Deng
- North Sea Environmental Monitoring Center, State Oceanic Administration, Qingdao, Shandong, 266033, China; Key Laboratory of Ecological Prewarning, Protection and Restoration of Bohai Sea, Ministry of Natural Resources, Qingdao, Shandong, 266033, China
| | - Yi Liu
- State Key Laboratory of Mariculture Biobreeding and Sustainable Goods, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, Shandong 266071, China
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11
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Sun Y, Zhao X, Sui Q, Sun X, Zhu L, Booth AM, Chen B, Qu K, Xia B. Polystyrene nanoplastics affected the nutritional quality of Chlamys farreri through disturbing the function of gills and physiological metabolism: Comparison with microplastics. Sci Total Environ 2024; 910:168457. [PMID: 37981153 DOI: 10.1016/j.scitotenv.2023.168457] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 10/14/2023] [Accepted: 11/07/2023] [Indexed: 11/21/2023]
Abstract
Although microplastics (MPs) and nanoplastics (NPs) have become a global concern because of their possible hazards to marine organisms, few studies have investigated the effects of MPs/NPs on the nutritional quality of marine economic species, and the toxicity mechanisms remain unclear. We therefore investigated the effects of polystyrene MPs (PS-MPs, 5 μm) and NPs (PS-NPs, 100 nm) at an environmentally relevant concentration on adult scallops Chlamys farreri through the determination of nutritional composition, physiological metabolism, enzymatic response, and histopathology. Results showed that plastic particles significantly decreased the plumpness (by 33.32 % for PS-MPs and 36.69 % for PS-NPs) and protein content of the adductor muscle (by 4.88 % for PS-MPs and 8.77 % for PS-NPs) in scallops, with PS-NPs causing more notable impacts than PS-MPs. Based on the integrated biomarker response analysis, PS-NPs exhibited greater toxicity than PS-MPs, suggesting a size-dependent effect for plastic particle. Furthermore, PS-NPs significantly affected the physiological metabolism (e.g., filtration and ammonia excretion) than PS-MPs. Using gill transcriptomics analysis, the key toxicological mechanisms caused by NPs exposure included enrichment of the mitophagy pathway, responses to oxidative stress, and changes related to genes associated with nerves. This study provides new insights into the potential negative effects of MPs/NPs on the mariculture industry.
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Affiliation(s)
- Yejiao Sun
- State Key Laboratory of Mariculture Biobreeding and Sustainable Goods, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China; Laboratory for Marine Ecology and Environmental Science, Laoshan Laboratory, Qingdao 266237, China; Ocean University of China, Qingdao 266100, China
| | - Xinguo Zhao
- State Key Laboratory of Mariculture Biobreeding and Sustainable Goods, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China; Laboratory for Marine Ecology and Environmental Science, Laoshan Laboratory, Qingdao 266237, China
| | - Qi Sui
- State Key Laboratory of Mariculture Biobreeding and Sustainable Goods, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China; Laboratory for Marine Ecology and Environmental Science, Laoshan Laboratory, Qingdao 266237, China
| | - Xuemei Sun
- State Key Laboratory of Mariculture Biobreeding and Sustainable Goods, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China; Laboratory for Marine Ecology and Environmental Science, Laoshan Laboratory, Qingdao 266237, China
| | - Lin Zhu
- State Key Laboratory of Mariculture Biobreeding and Sustainable Goods, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China; Laboratory for Marine Ecology and Environmental Science, Laoshan Laboratory, Qingdao 266237, China
| | - Andy M Booth
- SINTEF Ocean, Department of Climate and Environment, Trondheim 7465, Norway.
| | - Bijuan Chen
- State Key Laboratory of Mariculture Biobreeding and Sustainable Goods, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China; Laboratory for Marine Ecology and Environmental Science, Laoshan Laboratory, Qingdao 266237, China
| | - Keming Qu
- State Key Laboratory of Mariculture Biobreeding and Sustainable Goods, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China
| | - Bin Xia
- State Key Laboratory of Mariculture Biobreeding and Sustainable Goods, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China; Laboratory for Marine Ecology and Environmental Science, Laoshan Laboratory, Qingdao 266237, China.
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12
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Hao Z, Qian J, Zheng F, Lin B, Xu M, Feng W, Zou X. Human-influenced changes in pollution status and potential risk of sediment heavy metals in Xincun Bay, a typical lagoon of Hainan, China. Mar Pollut Bull 2024; 199:115949. [PMID: 38134869 DOI: 10.1016/j.marpolbul.2023.115949] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 12/12/2023] [Accepted: 12/15/2023] [Indexed: 12/24/2023]
Abstract
Pollution status and ecological risks associated with sediment heavy metals (Cu, Pb, Zn, Cd, and Cr) were investigated around Xincun Bay, assessing their spatial variations and relationship with sediment physiochemical factors. Higher concentrations and associated risks were observed in the central region, where mariculture activities were concentrated, compared to non-maricultured areas. Despite with overall low concentrations, Cd had a higher ecological risk. Correlation and principal component analyses revealed similar sources for all metals in Xincun Bay. Heavy metal concentrations varied with expansion of mariculture operations in terms of quantity and scale, confirming the influence of mariculture activities. Sediments around mariculture had higher contents of clay, silt, and total organic carbon (TOC), and finer particle sizes. Quantitative analyses through correlation and linear regression indicated that TOC significantly regulated heavy metal concentration and distribution (p < 0.05). Considering its significant association with TOC, the influence of mean grain size should not be overlooked.
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Affiliation(s)
- Zhe Hao
- School of Marine Science and Engineering, Nanjing Normal University, Nanjing 210023, China
| | - Jian Qian
- Key Laboratory of Engineering Oceanography, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou 310012, China
| | - Fangqin Zheng
- Key Laboratory of Engineering Oceanography, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou 310012, China
| | - Bo Lin
- Key Laboratory of Engineering Oceanography, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou 310012, China
| | - Min Xu
- School of Marine Science and Engineering, Nanjing Normal University, Nanjing 210023, China.
| | - Weihua Feng
- Key Laboratory of Engineering Oceanography, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou 310012, China
| | - Xinqing Zou
- School of Geographic and Oceanographic Sciences, Nanjing University, Nanjing 210093, China; Collaborative Innovation Center of South China Sea Studies, Nanjing University, Nanjing 210093, China; Key Laboratory of Coast and Island Development (Nanjing University), Ministry of Education, Nanjing 210093, China.
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13
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Xie L, Chen S, Wu Z, Xue Z, Ye Y, Chen B, Chen J, Chen G. Influence of wastewater discharge from dredging mariculture pond sediments on the food sources of two intertidal crab species. Mar Pollut Bull 2024; 199:115992. [PMID: 38181471 DOI: 10.1016/j.marpolbul.2023.115992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 12/25/2023] [Accepted: 12/25/2023] [Indexed: 01/07/2024]
Abstract
The present study δ13C, δ15N and fatty acid compositions of two dominant mangrove crabs, Tubuca arcuata and Parasesarma plicatum were compared between a mangrove site frequently receiving dredged wastewater from mariculture ponds and an adjacent reference site, to investigate the impact of wastewater discharge on their diets. A laboratory experiment was also conducted to further test how their diets changed with the wastewater input. The result showed no significant change in the δ13C while clear 15N enrichment of crabs in association with the wastewater discharge. Changes in 15N signature and fatty acid composition of the crabs due to the wastewater discharge indicated that the impact of wastewater discharge was related to crab species, being more apparent on the deposit feeder (T. arcuata) than the herbivorous P. plicatum. The results suggested that the discharge of dredged wastewater into mangroves resulted in the uptake of wastewater-derived materials and nutrients by mangrove crabs.
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Affiliation(s)
- Limei Xie
- College of the Environment and Ecology, Xiamen University, Xiamen, China; Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, China
| | - Shunyang Chen
- Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, China; Key Laboratory of Marine Ecological Conservation and Restoration, Ministry of Natural Resources, Xiamen, China
| | - Zhiqiang Wu
- College of Marine Life Sciences, Ocean University of China, Qingdao, China
| | - Zhiyong Xue
- Fugong Forestry Workstation, Longhai District Forestry Bureau, Zhangzhou, China
| | - Yong Ye
- College of the Environment and Ecology, Xiamen University, Xiamen, China
| | - Bin Chen
- Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, China; Key Laboratory of Marine Ecological Conservation and Restoration, Ministry of Natural Resources, Xiamen, China
| | - Jiahui Chen
- Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, China
| | - Guangcheng Chen
- Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, China; Key Laboratory of Marine Ecological Conservation and Restoration, Ministry of Natural Resources, Xiamen, China.
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14
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Ahangarzadeh M, Houshmand H, Torfi Mozanzadeh M, Kakoolaki S, Nazemroaya S, Sepahdari A, Peyghan R, Ajdari A, Sadr AS. Effect of killed autogenous polyvalent vaccines against Vibrio harveyi, V. alginolyticus and Streptococcus iniae on survival and immunogenicity of Asian seabass (Latescalcarifer). Fish Shellfish Immunol 2023; 143:109226. [PMID: 37956799 DOI: 10.1016/j.fsi.2023.109226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 10/15/2023] [Accepted: 11/09/2023] [Indexed: 11/15/2023]
Abstract
Vibriosis and Streptococcosis are the most important bacterial diseases that infect Asian seabass (Lates calcarifer) in various stages of its life cycle. Vaccination is a cost-effective strategy to prevent the occurrence of infectious diseases and increase sustainability in the aquaculture industry. This study was aimed to develop and evaluate a killed polyvalent vaccine against Vibrio harveyi, V. alginolyticus and Streptococcus iniae, delivered by intraperitoneal injection in Asian seabass. The fish were divided into three groups with 60 fish in triplicate: I) a control group injected with phosphate-buffered saline (PBS), II) a group vaccinated by polyvalent vaccine (V. alginolyticus + V. harveyi + S. iniae) and III) a group vaccinated with the same polyvalent vaccine plus an oral booster. Immunological parameters and antibody titer were measured before and at three, five-, and eight-weeks post-vaccination. The efficacy of the killed vaccine was assessed five weeks post-vaccination by challenging with each isolate separately. The vaccinated groups had higher survival rate than control group. The highest relative percentage survival rate, 85.71 ± 3.57 % was observed in group III when challenged with V. harveyi. The vaccinated fish produced significantly higher antibody titers against V. alginolyticus, V. harveyi and S. iniae than the control group (P < 0.05). Non-specific immune parameters were significantly enhanced in the vaccinated groups, especially group III, compared to the control. The results demonstrated that the administration of a killed polyvalent vaccine can effectively protect Asian seabass against V. alginolyticus, V. harveyi and S. iniae.
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Affiliation(s)
- Mina Ahangarzadeh
- South of Iran Aquaculture Research Institute, Iranian Fisheries Science Research Institute, Agricultural Research Education and Extension Organization (AREEO), Ahvaz, Iran.
| | - Hossein Houshmand
- South of Iran Aquaculture Research Institute, Iranian Fisheries Science Research Institute, Agricultural Research Education and Extension Organization (AREEO), Ahvaz, Iran.
| | - Mansour Torfi Mozanzadeh
- South of Iran Aquaculture Research Institute, Iranian Fisheries Science Research Institute, Agricultural Research Education and Extension Organization (AREEO), Ahvaz, Iran.
| | - Shapour Kakoolaki
- Iranian Fisheries Science Research Institute, Agricultural Research Education and Extension Organization (AREEO), Tehran, Iran.
| | - Samira Nazemroaya
- South of Iran Aquaculture Research Institute, Iranian Fisheries Science Research Institute, Agricultural Research Education and Extension Organization (AREEO), Ahvaz, Iran.
| | - Abolfazl Sepahdari
- Iranian Fisheries Science Research Institute, Agricultural Research Education and Extension Organization (AREEO), Tehran, Iran.
| | - Rahim Peyghan
- Department of Aquatic Animal Health, Faculty of Veterinary Medicine, Shahid Chamran University of Ahvaz, Ahvaz, Iran.
| | - Ashkan Ajdari
- Offshore Fisheries Research Center, Iranian Fisheries Science Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Chabahar, Iran.
| | - Ayeh Sadat Sadr
- South of Iran Aquaculture Research Institute, Iranian Fisheries Science Research Institute, Agricultural Research Education and Extension Organization (AREEO), Ahvaz, Iran.
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15
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Elgendy MY, Ali SE, Abbas WT, Algammal AM, Abdelsalam M. The role of marine pollution on the emergence of fish bacterial diseases. Chemosphere 2023; 344:140366. [PMID: 37806325 DOI: 10.1016/j.chemosphere.2023.140366] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 10/02/2023] [Accepted: 10/03/2023] [Indexed: 10/10/2023]
Abstract
Marine pollution and bacterial disease outbreaks are two closely related dilemmas that impact marine fish production from fisheries and mariculture. Oil, heavy metals, agrochemicals, sewage, medical wastes, plastics, algal blooms, atmospheric pollutants, mariculture-related pollutants, as well as thermal and noise pollution are the most threatening marine pollutants. The release of these pollutants into the marine aquatic environment leads to significant ecological degradation and a range of non-infectious disorders in fish. Marine pollutants trigger numerous fish bacterial diseases by increasing microbial multiplication in the aquatic environment and suppressing fish immune defense mechanisms. The greater part of these microorganisms is naturally occurring in the aquatic environment. Most disease outbreaks are caused by opportunistic bacterial agents that attack stressed fish. Some infections are more serious and occur in the absence of environmental stressors. Gram-negative bacteria are the most frequent causes of these epizootics, while gram-positive bacterial agents rank second on the critical pathogens list. Vibrio spp., Photobacterium damselae subsp. Piscicida, Tenacibaculum maritimum, Edwardsiella spp., Streptococcus spp., Renibacterium salmoninarum, Pseudomonas spp., Aeromonas spp., and Mycobacterium spp. Are the most dangerous pathogens that attack fish in polluted marine aquatic environments. Effective management strategies and stringent regulations are required to prevent or mitigate the impacts of marine pollutants on aquatic animal health. This review will increase stakeholder awareness about marine pollutants and their impacts on aquatic animal health. It will support competent authorities in developing effective management strategies to mitigate marine pollution, promote the sustainability of commercial marine fisheries, and protect aquatic animal health.
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Affiliation(s)
- Mamdouh Y Elgendy
- Department of Hydrobiology, Veterinary Research Institute, National Research Centre, Dokki, Cairo 12622, Egypt.
| | - Shimaa E Ali
- Department of Hydrobiology, Veterinary Research Institute, National Research Centre, Dokki, Cairo 12622, Egypt; WorldFish, Abbassa, Sharkia, Egypt
| | - Wafaa T Abbas
- Department of Hydrobiology, Veterinary Research Institute, National Research Centre, Dokki, Cairo 12622, Egypt
| | - Abdelazeem M Algammal
- Department of Bacteriology, Immunology, and Mycology, Faculty of Veterinary Medicine, Suez Canal University, Ismailia 41522, Egypt
| | - Mohamed Abdelsalam
- Department of Aquatic Animal Medicine and Management, Faculty of Veterinary Medicine, Cairo University, Giza 12211, Egypt
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16
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Xu Y, Zhang Y, Ji J, Xu L, Liang Y. What drives the growth of china's mariculture production? An empirical analysis of its coastal regions from 1983 to 2019. Environ Sci Pollut Res Int 2023; 30:111397-111409. [PMID: 37816959 DOI: 10.1007/s11356-023-30265-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Accepted: 10/01/2023] [Indexed: 10/12/2023]
Abstract
China's mariculture (i.e., seafood farming in the ocean) production has grown rapidly. It ranks the first in the world and has made a huge contribution to solving human food security and nutrition issues. This study aimed to examine the development process of China's mariculture since 1983, clarify the main driving factors for the growth of mariculture production, and analyze whether China's experience can help other major producers in the world. Using the data on China's 10 coastal regions, this study applied the Logarithmic Mean Divisia Index (LMDI) from both the national and regional perspectives to analyze the main driving factors for the growth of China's mariculture production from 1983 to 2019. The results indicate that China's total mariculture production showed an overall upward trend and the major driving factor for the increase changed from the initial labor force to unit production. The primary factor for the increase in the Circum-Bohai Sea was labor, whereas that in the South China Sea, Yellow Sea and East China Sea was unit production. China's mariculture production has expanded from resource-driven to efficiency-driven. This study has practical significance for policy formulation and the future development direction of mariculture. This study provides a universally applicable methodology, and has reference significance for the world's major mariculture producers to further study the sustainable growth of mariculture production.
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Affiliation(s)
- Yao Xu
- Business School, Qingdao University of Technology, Qingdao, 266520, China
| | - Yi Zhang
- Business School, Qingdao University of Technology, Qingdao, 266520, China
| | - Jianyue Ji
- School of Economics, Ocean University of China, Qingdao, 266100, China.
- Institute of Marine Development, Ocean University of China, Qingdao, 266100, China.
| | - Lijie Xu
- Business School, Qingdao University of Technology, Qingdao, 266520, China
| | - Yuan Liang
- Faculty of Education, The University of Hang Kong, Hang Kong, 999077, China
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17
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Chelyadina NS, Kapranov SV, Popov MA, Smirnova LL, Bobko NI. The mussel Mytilus galloprovincialis (Crimea, Black Sea) as a source of essential trace elements in human nutrition. Biol Trace Elem Res 2023; 201:5415-5430. [PMID: 36881258 DOI: 10.1007/s12011-023-03607-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Accepted: 02/23/2023] [Indexed: 03/08/2023]
Abstract
Micronutrients, or essential trace elements, are important components in various metabolic processes inherent to the normal functioning of organism. To date, a substantial part of the world population suffers from a lack of micronutrients in the diet. Mussels are an important and cheap source of nutrients, which can be utilized to mitigate the micronutrient deficiency in the world. In the present work, using inductively coupled plasma mass spectrometry, the contents of the micronutrients Cr, Fe, Cu, Zn, Se, I, and Mo were studied for the first time in soft tissues, shell liquor, and byssus of females and males of the mussel Mytilus galloprovincialis as the promising sources of essential elements in the human diet. Fe, Zn, and I were the most abundant micronutrients in the three body parts. Significant sex-related differences in the body parts were detected only for Fe, which was more abundant in byssus of males, and Zn, which exhibited higher levels in shell liquor of females. Significant tissue-related differences were registered in the contents of all the elements under study. M. galloprovincialis meat was characterized as the optimal source of I and Se for covering the daily human needs. Regardless of sex, byssus turned out to be richer in Fe, I, Cu, Cr, and Mo in comparison with soft tissues, which fact allows recommending this body part for the preparation of dietary supplements to compensate for the deficiency of these micronutrients in the human body.
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Affiliation(s)
- Natalya S Chelyadina
- A.O. Kovalevsky Institute of Biology of the Southern Seas of RAS, 2 Nakhimov ave., 299011, Sevastopol, Russian Federation.
| | - Sergey V Kapranov
- A.O. Kovalevsky Institute of Biology of the Southern Seas of RAS, 2 Nakhimov ave., 299011, Sevastopol, Russian Federation
| | - Mark A Popov
- A.O. Kovalevsky Institute of Biology of the Southern Seas of RAS, 2 Nakhimov ave., 299011, Sevastopol, Russian Federation
| | - Lyudmila L Smirnova
- Institute of Natural and Technical Systems of RAS, Lenin str. 28, Sevastopol, Russian Federation, 299011
| | - Nikolay I Bobko
- A.O. Kovalevsky Institute of Biology of the Southern Seas of RAS, 2 Nakhimov ave., 299011, Sevastopol, Russian Federation
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18
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Qian G, Shao J, Hu P, Tang W, Xiao Y, Hao T. From micro to macro: The role of seawater in maintaining structural integrity and bioactivity of granules in treating antibiotic-laden mariculture wastewater. Water Res 2023; 246:120702. [PMID: 37837903 DOI: 10.1016/j.watres.2023.120702] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 09/19/2023] [Accepted: 10/04/2023] [Indexed: 10/16/2023]
Abstract
Granular sludge (GS) has superior antibiotic removal ability to flocs, due to GS's layered structure and rich extracellular polymeric substances. However, prolonged exposure to antibiotics degrades the performance and stability of GS. This study investigated how a seawater matrix might help maintain the structural integrity and bioactivity of granules. The results demonstrated that GS had better sulfadiazine (SDZ) removal efficiency in a seawater matrix (85.6 %) than in a freshwater matrix (57.6 %); the multiple ions in seawater enhanced boundary layer diffusion (kiR1 = 0.0805 mg·g-1·min-1/2 and kiR2 = 0.1112 mg·g-1·min-1/2) and improved adsorption performance by 15 % (0.123 mg/g-SS freshwater vs. 0.141 mg/g-SS seawater). Moreover, multiple hydrogen bonds (1-3) formed between each SDZ and lipid bilayer fortified the adsorption. Beyond S-N and S-C bond hydrolyses that took place in freshwater systems, there was an additional biodegradation pathway for GS to be cultivated in a saltwater system that involved sulfur dioxide extrusion. This additional pathway was attributable to the greater microbial diversity and larger presence of sulfadiazine-degrading bacteria containing SadAC genes, such as Leucobacter and Arthrobacter, in saltwater wastewater. The findings of this study elucidate how seawater influences GS properties and antibiotic removal ability.
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Affiliation(s)
- Guangsheng Qian
- Department of Civil and Environmental Engineering, Faculty of Science and Technology, University of Macau, Macau 999078, China; Centre for Regional Oceans, Faculty of Science and Technology, University of Macau, Macau 999078, China
| | - Jingyi Shao
- Department of Civil and Environmental Engineering, Faculty of Science and Technology, University of Macau, Macau 999078, China
| | - Peng Hu
- Department of Civil and Environmental Engineering, Faculty of Science and Technology, University of Macau, Macau 999078, China
| | - Wentao Tang
- Department of Civil and Environmental Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China
| | - Yihang Xiao
- Department of Civil and Environmental Engineering, Faculty of Science and Technology, University of Macau, Macau 999078, China
| | - Tianwei Hao
- Department of Civil and Environmental Engineering, Faculty of Science and Technology, University of Macau, Macau 999078, China; Centre for Regional Oceans, Faculty of Science and Technology, University of Macau, Macau 999078, China.
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Chelyadina NS, Kapranov SV, Popov MA, Smirnova LL, Bobko NI. Rare earth elements in different body parts of the mussel Mytilus galloprovincialis (Crimea, Black Sea) and assessment of associated human health risks from its consumption. Mar Pollut Bull 2023; 195:115462. [PMID: 37660662 DOI: 10.1016/j.marpolbul.2023.115462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Revised: 08/22/2023] [Accepted: 08/25/2023] [Indexed: 09/05/2023]
Abstract
The rare earth element (REE) pollution in the hydrosphere has become a matter of serious concern lately. In this study, using inductively coupled plasma mass spectrometry, the REE contents in soft tissue, byssus and shell liquor of the mussel Mytilus galloprovincialis, as a potential REE pollution bioindicator, in the Black Sea were determined for the first time. The highest REE levels were observed in mussels from the seabed. The REE contents in byssus and shell liquor were higher than in soft tissue. In byssus, the contents of Y, La, Ce, Nd and Dy were the highest, whereas in shell liquor, the heavier REE and Sc were the most concentrated. No likely REE-associated risks from the mussel meat consumption were detected. In soft tissue and byssus, REE contents significantly correlated with that of silicon.
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Affiliation(s)
- Natalya S Chelyadina
- A.O. Kovalevsky Institute of Biology of the Southern Seas of RAS, 2 Nakhimov Ave., 299011 Sevastopol, Russian Federation.
| | - Sergey V Kapranov
- A.O. Kovalevsky Institute of Biology of the Southern Seas of RAS, 2 Nakhimov Ave., 299011 Sevastopol, Russian Federation
| | - Mark A Popov
- A.O. Kovalevsky Institute of Biology of the Southern Seas of RAS, 2 Nakhimov Ave., 299011 Sevastopol, Russian Federation
| | - Lyudmila L Smirnova
- Institute of Natural and Technical Systems of RAS, Lenin str. 28, 299011 Sevastopol, Russian Federation
| | - Nikolay I Bobko
- A.O. Kovalevsky Institute of Biology of the Southern Seas of RAS, 2 Nakhimov Ave., 299011 Sevastopol, Russian Federation
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20
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Wang Y, Yang W, Cai Y, Fang Z, Zhao X, Zhang Q, Yuan H, Lin N, Zou C, Zheng M. Macroalgae culture-induced carbon sink in a large cultivation area of China. Environ Sci Pollut Res 2023; 30:107693-107702. [PMID: 37740808 DOI: 10.1007/s11356-023-29985-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Accepted: 09/16/2023] [Indexed: 09/25/2023]
Abstract
Macroalgae culture-induced carbon sink in sediments has been little investigated. Here, total organic carbon (TOC), total nitrogen (TN), and δ13C were examined in sediments in a cultivation field of macroalgae (kelp and Gracilariopsis lemaneiformis) in Sansha Bay, Southeast China. Both proxies of C/N (TOC to TN ratio) and δ13C indicated a multisource of TOC. Based on a three-endmember model, macroalgae-derived TOC (TOCma) accounted for < 35% of the total TOC, averaging 16 ± 9% (mean ± SD). On average, terrestrial and phytoplankton-derived TOC showed much higher percentages of 24 ± 17% and 60 ± 20%, respectively (t-test, p < 0.02). A preliminary estimate suggested that TOCma represents a carbon sink of 8.2 × 103 tons per year, corresponding to about 22% of the sink associated with phytoplankton and macroalgae and 8 ± 6% of the macroalgae carbon production in Sansha Bay. Considering its production magnitude, the macroalgae-induced carbon sink seems to be insignificant, on a national or global scale, to phytoplankton, though it should be taken into account given the small cultivation area.
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Affiliation(s)
- Yingying Wang
- State Key Laboratory of Marine Environmental Science and College of Ocean and Earth Sciences, Xiamen University, Xiamen, 361102, China
| | - Weifeng Yang
- State Key Laboratory of Marine Environmental Science and College of Ocean and Earth Sciences, Xiamen University, Xiamen, 361102, China.
| | - Yihua Cai
- State Key Laboratory of Marine Environmental Science and College of Ocean and Earth Sciences, Xiamen University, Xiamen, 361102, China
| | - Ziming Fang
- State Key Laboratory of Marine Environmental Science and College of Ocean and Earth Sciences, Xiamen University, Xiamen, 361102, China
| | - Xiufeng Zhao
- State Key Laboratory of Marine Environmental Science and College of Ocean and Earth Sciences, Xiamen University, Xiamen, 361102, China
| | - Qinghua Zhang
- State Key Laboratory of Marine Environmental Science and College of Ocean and Earth Sciences, Xiamen University, Xiamen, 361102, China
| | - Hao Yuan
- State Key Laboratory of Marine Environmental Science and College of Ocean and Earth Sciences, Xiamen University, Xiamen, 361102, China
| | - Na Lin
- State Key Laboratory of Marine Environmental Science and College of Ocean and Earth Sciences, Xiamen University, Xiamen, 361102, China
| | - Chenyi Zou
- State Key Laboratory of Marine Environmental Science and College of Ocean and Earth Sciences, Xiamen University, Xiamen, 361102, China
| | - Minfang Zheng
- State Key Laboratory of Marine Environmental Science and College of Ocean and Earth Sciences, Xiamen University, Xiamen, 361102, China
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21
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Abstract
Non-indigenous species tend to colonize aquaculture installations, especially when they are near international ports. In addition to the local environmental hazard that colonizing non-indigenous species pose, they can also take advantage of local transport opportunities to spread elsewhere. In this study, we examined the risk of the spread of eight invasive fouling species that are found in mussel farms in southern Brazil. We used ensemble niche models based on worldwide occurrences of these species, and environmental variables (ocean temperature and salinity) to predict suitable areas for each species with three algorithms (Maxent, Random Forest, and Support Vector Machine). As a proxy for propagule pressure, we used the tonnage transported by container ships from Santa Catarina (the main mariculture region) that travel to other Brazilian ports. We found that ports in the tropical states of Pernambuco, Ceará, and Bahia received the largest tonnage, although far from Santa Catarina and in a different ecoregion. The ascidians Aplidium accarense and Didemnum perlucidum are known from Bahia, with a high risk of invasion in the other states. The bryozoan Watersipora subtorquata also has a high risk of establishment in Pernambuco, while the ascidian Botrylloides giganteus has a medium risk in Bahia. Paraná, a state in the same ecoregion as Santa Catarina is likely to be invaded by all species. A second state in this region, Rio Grande do Sul, is vulnerable to A. accarense, the barnacle Megabalanus coccopoma, and the mussel Mytilus galloprovincialis. Climate change is changing species latitudinal distributions and most species will gain rather than lose area in near future (by 2050). As an ideal habitat for fouling organisms and invasive species, aquaculture farms can increase propagule pressure and thus the probability that species will expand their distributions, especially if they are close to ports. Therefore, an integrated approach of the risks of both aquaculture and nautical transport equipment present in a region is necessary to better inform decision-making procedures aiming at the expansion or establishment of new aquaculture farms. The risk maps provided will allow authorities and regional stakeholders to prioritize areas of concern for mitigating the present and future spread of fouling species.
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Affiliation(s)
- Daniel M. Lins
- Ecology and Conservation Graduate Program, Universidade Federal do Paraná, Curitiba, Paraná, Brazil
| | - Rosana M. Rocha
- Zoology Department, Universidade Federal do Paraná, Curitiba, Paraná, Brazil
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22
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Zhu Y, Li W, Zhang M, Zhong Z, Zhou Z, Han J, Zhang C, Yang J, Wu Y, Shu H. Screening of host gut-derived probiotics and effects of feeding probiotics on growth, immunity, and antioxidant enzyme activity of hybrid grouper (Epinephelus fuscoguttatus♀ × E. lanceolatus♂). Fish Shellfish Immunol 2023; 136:108700. [PMID: 36966895 DOI: 10.1016/j.fsi.2023.108700] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Revised: 03/05/2023] [Accepted: 03/17/2023] [Indexed: 06/18/2023]
Abstract
In recent years, the widespread use of antibiotics in intensive grouper mariculture has resulted in the ineffectiveness of antibiotic treatment, leading to an increasing incidence of diseases caused by bacteria, viruses, and parasites, causing serious economic losses. Hence, it is crucial to develop alternative strategies to antibiotics for healthy and sustainable development of the mariculture industry. Here, we aimed to screen host gut-derived probiotics and evaluate its effects on growth and immunity of grouper. In this study, 43 bacterial strains were isolated from the intestine of the hybrid grouper (Epinephelus fuscoguttatus♀ × E. lanceolatus♂), and a potential probiotic strain G1-26, which can efficiently secrete amylase, protease, and lipase, was obtained using different screening mediums. Based on 16S rDNA sequencing, the potential probiotic strain G1-26 was identified as Vibrio fluvialis. The results of a biological characteristic evaluation showed that V. fluvialis G1-26 could grow at 25-45 °C, pH 5.5-7.5, salinity 10-40, and bile salt concentration 0-0.030%, and produce amylase, lipase, and protease under different culture conditions. Additionally, V. fluvialis G1-26 is sensitive to many antibiotics and does not exhibit aquatic biotoxicity. Subsequently, hybrid groupers were fed diets containing V. fluvialis G1-26 at different concentrations (0, 106, 108, and 1010 CFU/g) for 60 d. The results showed that V. fluvialis G1-26 at 108 CFU/g did not significantly affect the growth performance of the hybrid grouper (P > 0.05). V. fluvialis G1-26 supplementation at 108 and 1010 CFU/g significantly promoted the relative expression of immune-related genes in hybrid groupers (TLR3, TLR5, IL-1β, IL-8, IL-10, CTL, LysC, TNF-2, and MHC-2) and improved the activities of alkaline phosphatase, acid phosphatase, total superoxide dismutase, and total protein in the liver. In conclusion, V. fluvialis G1-26, a potential probiotic strain isolated from the intestine of the hybrid grouper, can be used as an effective immunopotentiator at an optimal dose of 108 CFU/g diet. Our results provide a scientific basis for the development and utilization of probiotics in the grouper mariculture industry.
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Affiliation(s)
- Yating Zhu
- School of Life Sciences, Guangzhou University, Guangzhou, 510006, China
| | - Wen Li
- School of Life Sciences, Guangzhou University, Guangzhou, 510006, China
| | - Mingqing Zhang
- School of Life Sciences, Guangzhou University, Guangzhou, 510006, China; State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory for Aquatic Economic Animals and Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), School of Life Sciences, Sun Yat-Sen University, Guangzhou, 510275, China.
| | - Zhongxuan Zhong
- School of Life Sciences, Guangzhou University, Guangzhou, 510006, China
| | - Zhiqian Zhou
- School of Life Sciences, Guangzhou University, Guangzhou, 510006, China
| | - Jiayi Han
- School of Life Sciences, Guangzhou University, Guangzhou, 510006, China
| | - Cuiping Zhang
- School of Life Sciences, Guangzhou University, Guangzhou, 510006, China
| | - Jinlin Yang
- School of Life Sciences, Guangzhou University, Guangzhou, 510006, China
| | - Yuxin Wu
- School of Life Sciences, Guangzhou University, Guangzhou, 510006, China
| | - Hu Shu
- School of Life Sciences, Guangzhou University, Guangzhou, 510006, China.
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23
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Wang S, Shi Y, Wang H, Li Z, Zhao M. Succession of Bacteria Attached to Microplastics After Transferring from a Mariculture Area to a Seagrass Meadow. Bull Environ Contam Toxicol 2023; 110:69. [PMID: 36943489 DOI: 10.1007/s00128-023-03700-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Accepted: 02/07/2023] [Indexed: 06/18/2023]
Abstract
Microplastics have been recognized as a novel niche for bacteria. However, studies have characterized the plastisphere microbial community in situ without exploring the microbial changes after transferring to other ecosystems. Here we focus on bacterial succession on typical microplastics (polypropylene and expanded polystyrene) and natural substrates (wood) after transferring from mariculture area to seagrass meadows system. Using high-throughput sequencing of 16 S rRNA, we found that alpha diversity significantly reduced after transferring and microplastics especially PP had significant separations on PCoA plots at different succession stages. The abundance and metabolic pathways of potential pathogen-associated microorganisms are significantly decreased. The relative abundance of xenobiotics biodegradation pathways was significantly lower and of energy metabolism pathways was significantly higher by comparing before and after transferring. Main environmental factors affecting microbial communities changed from nutrient characteristics to basic physicochemical properties after transferring. The succession times of the microbial communities of the three materials were different.
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Affiliation(s)
- Shuai Wang
- Bay Innovation Institute/Modern Marine Ranching Engineering Research Center of Hainan/Key Laboratory of Utilization and Conservation for Tropical Marine Bioresources of Ministry of Education/Key Laboratory for Coastal Marine Eco-Environment Process and Carbon Sink of Hainan, Hainan Tropical Ocean University, Sanya, 572022, China
| | - Yunfeng Shi
- Bay Innovation Institute/Modern Marine Ranching Engineering Research Center of Hainan/Key Laboratory of Utilization and Conservation for Tropical Marine Bioresources of Ministry of Education/Key Laboratory for Coastal Marine Eco-Environment Process and Carbon Sink of Hainan, Hainan Tropical Ocean University, Sanya, 572022, China
| | - Hui Wang
- Bay Innovation Institute/Modern Marine Ranching Engineering Research Center of Hainan/Key Laboratory of Utilization and Conservation for Tropical Marine Bioresources of Ministry of Education/Key Laboratory for Coastal Marine Eco-Environment Process and Carbon Sink of Hainan, Hainan Tropical Ocean University, Sanya, 572022, China
| | - Zhaoyang Li
- Bay Innovation Institute/Modern Marine Ranching Engineering Research Center of Hainan/Key Laboratory of Utilization and Conservation for Tropical Marine Bioresources of Ministry of Education/Key Laboratory for Coastal Marine Eco-Environment Process and Carbon Sink of Hainan, Hainan Tropical Ocean University, Sanya, 572022, China
| | - Muqiu Zhao
- Bay Innovation Institute/Modern Marine Ranching Engineering Research Center of Hainan/Key Laboratory of Utilization and Conservation for Tropical Marine Bioresources of Ministry of Education/Key Laboratory for Coastal Marine Eco-Environment Process and Carbon Sink of Hainan, Hainan Tropical Ocean University, Sanya, 572022, China.
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24
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Sun Y, Ji J, Wei Z. Can environmental regulation promote the green output bias in China's mariculture? Environ Sci Pollut Res Int 2023; 30:31116-31129. [PMID: 36441312 DOI: 10.1007/s11356-022-24349-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Accepted: 11/17/2022] [Indexed: 06/16/2023]
Abstract
The green output bias of technological progress is the key factor driving the green transformation of mariculture. This study considers whether environmental regulation can promote the green output bias. Utilizing data envelopment analysis (DEA), we decomposed the green output biased technological progress index (OBTC) and constructed the index to measure the output bias between output value and pollutant emissions. The results show spatial and temporal differences in the green output bias, with different bias values for three major Chinese coastal regions during the study period. As the bias value mainly fluctuates around the zero value, the degree of green output bias must be enhanced. Considering the heterogeneity of environmental regulation, we empirically study the relation that exists between environmental regulation and green output bias. Our findings indicate a U-shaped relation between two categories of environmental regulation and the green output bias. Green technology partially intermediates the mechanisms by which these environmental regulations influence green output bias. Our results have implications for policymakers and other stakeholders for strengthening environmental regulation, promoting green technological innovation, and the scientific planning of the species and scale of mariculture to promote sustainable development.
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Affiliation(s)
- Yanan Sun
- School of Economics, Ocean University of China, Qingdao, 266100, Shandong, China
| | - Jianyue Ji
- School of Economics, Ocean University of China, Qingdao, 266100, Shandong, China.
| | - Zhenhao Wei
- School of Economics, Ocean University of China, Qingdao, 266100, Shandong, China
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25
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Wang Y, Yang W, Zhao X, Zhang Q, Chen H, Fang Z, Zheng M. Changes in the carbon source and storage in a cultivation area of macro-algae in Southeast China. Mar Pollut Bull 2023; 188:114680. [PMID: 36746038 DOI: 10.1016/j.marpolbul.2023.114680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 01/16/2023] [Accepted: 01/26/2023] [Indexed: 06/18/2023]
Abstract
Macro-algae culture has recently attracted attention in China because of its capability to sequester carbon. Here, radionuclides, total organic carbon (TOC), and nitrogen (TN) were examined in a cultivation area of macro-algae in Southeast China. At the reference site, the ratio of TOC to TN (C/N, 8.1 ± 0.2, mean ± SD) did not exhibit discernible variation over the past 70 years. In contrast, in the cultivation area, C/N descended from 9.0 ± 0.2 around 1960 to 8.3 ± 0.2 between 1960 and 1990 and 7.6 ± 0.2 after 1990, coincident with the recorded kelp production in this area, indicating an influence of macro-algae culture-associated activities on carbon origin. Using a model, algal culture-associated activities contributed 23 ± 7 % between 1963 and 1990 and 53 ± 8 % between 1990 and 2022 to TOC. The burial of culture-associated TOC varied from 0.15 to 1.23 mg-C cm-2 yr-1, implying the unneglectable influence on carbon storage.
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Affiliation(s)
- Yingying Wang
- Stake Key Laboratory of Marine Environmental Science, Xiamen 361102, China
| | - Weifeng Yang
- Stake Key Laboratory of Marine Environmental Science, Xiamen 361102, China; College of Ocean and Earth Sciences, Xiamen University, Xiamen 361102, China.
| | - Xiufeng Zhao
- Stake Key Laboratory of Marine Environmental Science, Xiamen 361102, China
| | - Qinghua Zhang
- Stake Key Laboratory of Marine Environmental Science, Xiamen 361102, China
| | - Hansen Chen
- Stake Key Laboratory of Marine Environmental Science, Xiamen 361102, China
| | - Ziming Fang
- College of Ocean and Earth Sciences, Xiamen University, Xiamen 361102, China
| | - Minfang Zheng
- College of Ocean and Earth Sciences, Xiamen University, Xiamen 361102, China
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26
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Chandran R, K Singh R, Singh A, Ganesan K, Thipramalai Thangappan AK, K Lal K, Mohindra V. Evaluating the influence of environmental variables on the length-weight relationship and prediction modelling in flathead grey mullet, Mugil cephalus Linnaeus, 1758. PeerJ 2023; 11:e14884. [PMID: 36860765 PMCID: PMC9969857 DOI: 10.7717/peerj.14884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Accepted: 01/22/2023] [Indexed: 03/03/2023] Open
Abstract
Fish stocks that are grown under diverse environmental conditions have different biometric relationships and growth patterns. The biometric length-weight relationship (LWR) is an essential fishery assessment tool, as fish growth is continuous and depends on genetic and environmental factors. The present study attempts to understand the LWR of the flathead grey mullet, Mugil cephalus Linnaeus, 1758, from different locations. The study area encompassed its distribution in the wild across freshwater location (one), coastal habitats (eight locations), and estuaries (six locations) in India to determine the relationship between various environmental parameters. Specimens (n = 476) of M. cephalus were collected from commercial catches and the length and weight of individual specimens were recorded. Monthly data from the study locations were extracted for nine environmental variables from the datasets downloaded from the Physical Oceanography Distributed Active Archive Center (PO.DAAC) and the Copernicus Marine Environment Monitoring Service (CMEMS) over 16 years (2002 to 2017) on the Geographical Information System platform. The parameters of the LWR, intercept 'a' and slope or regression coefficient 'b', varied from 0.005321 to 0.22182 and 2.235 to 3.173, respectively. The condition factor ranged from 0.92 to 1.41. The partial least squares (PLS) score scatter plot matrix indicated differences in the environmental variables between the locations. PLS analysis of the regression coefficient and environment parameters revealed that certain environment variables viz., sea surface temperature, salinity, dissolved oxygen, nitrate, and phosphate, played a positive role. However, chlorophyll, pH, silicate, and iron played a negative role in influencing weight growth across various locations. The results revealed that the M. cephalus specimens from three locations, Mandapam, Karwar, and Ratnagiri, possessed significantly higher fitness to their environment than those from the other six locations. The PLS model can be used to predict weight growth under the various environmental conditions of different ecosystems. The three identified locations are useful sites for the mariculture of this species considering their growth performance, the environmental variables, and their interactions. The results of this study will improve the management and conservation of exploited stocks in regions affected by climate change. Our results will also aid in making environment clearance decisions for coastal development projects and will improve the efficiency of mariculture systems.
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Affiliation(s)
- Rejani Chandran
- Fish Conservation Division, ICAR-National Bureau of Fish Genetic Resources, Lucknow, Uttar Pradesh, India
| | - Rajeev K Singh
- Fish Conservation Division, ICAR-National Bureau of Fish Genetic Resources, Lucknow, Uttar Pradesh, India
| | - Achal Singh
- Fish Conservation Division, ICAR-National Bureau of Fish Genetic Resources, Lucknow, Uttar Pradesh, India
| | - Kantharajan Ganesan
- Fish Conservation Division, ICAR-National Bureau of Fish Genetic Resources, Lucknow, Uttar Pradesh, India
| | | | - Kuldeep K Lal
- Fish Conservation Division, ICAR-National Bureau of Fish Genetic Resources, Lucknow, Uttar Pradesh, India,ICAR-Central Institute of Brackishwater Aquaculture (CIBA), Chennai, Tamil Nadu, India
| | - Vindhya Mohindra
- Fish Conservation Division, ICAR-National Bureau of Fish Genetic Resources, Lucknow, Uttar Pradesh, India
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27
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Liu Q, Liao Y, Zhu J, Shi X, Shou L, Zeng J, Chen Q, Chen J. Influence of biodeposition by suspended cultured oyster on the distributions of trace elements in multiple media in a semi-enclosed bay of China. J Hazard Mater 2023; 443:130347. [PMID: 36372025 DOI: 10.1016/j.jhazmat.2022.130347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Revised: 10/13/2022] [Accepted: 11/06/2022] [Indexed: 06/16/2023]
Abstract
It remains unclear how the suspended non-fed bivalve mariculture will alter the coastal transfer and cleaning process of trace elements, the non-degradable contaminants, which have been reported to accumulate in sediment from bivalve mariculture areas. Herein, we set up a field in situ comparative test in the suspended oyster (Crassostrea plicatula) farming area (OF) and reference area (RA) of Xiangshan Bay to verify our hypothesis that the biodepositon of suspended oysters would consolidate trace elements from the water column and transport them to the sediment. Distribution of trace elements in multiple media of biodeposits (BDs), settling particles (SPs), sediments (SEs), and seawater demonstrate that the accelerated deposition of BDs which enriched trace elements from the water column by oysters filtering suspended particles led to trace elements accumulation in SEs from OF. Additionally, As, Cd, Co, Cr, Cu, Ni, V, and Zn were strongly regulated by this process with significant (p < 0.05) higher concentrations in SEs from OF (10.96, 0.20, 13.98, 82.40, 38.47, 38.22, 108.57, and 111.20 μg/g, repectively) than those from RA (9.43, 0.13, 11.76, 63.30, 30.34, 29.55, 86.59, and 100.24 μg/g, repectively), but the extent was different for Mn, Mo, Pb, and W with concentrations in SEs from OF (737.37, 0.81, 30.98, and 3.96 μg/g, repectively) and RA (765.25, 0.69, 31.27, and 3.34 μg/g, repectively), especially for Rb and Sr with concentrations in SEs from OF (131.13 and 96.24 μg/g, repectively) and RA (142.21 and 161.10 μg/g, repectively), due to their geochemical and geophysical properties. Moreover, the harvest of hyper-accumulated oysters as a sink for removing trace elements from water column cannot hide the impact of this process.
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Affiliation(s)
- Qiang Liu
- Key Laboratory of Marine Ecosystem Dynamics, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou, China; Key Laboratory of Ocean Space Resource Management Technology, Ministry of Natural Resources, Hangzhou, China
| | - Yibo Liao
- Key Laboratory of Marine Ecosystem Dynamics, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou, China; Key Laboratory of Ocean Space Resource Management Technology, Ministry of Natural Resources, Hangzhou, China
| | - Jihao Zhu
- Key Laboratory of Submarine Geosciences, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou, China
| | - Xiaolai Shi
- Key Laboratory of Marine Ecosystem Dynamics, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou, China
| | - Lu Shou
- Key Laboratory of Marine Ecosystem Dynamics, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou, China.
| | - Jiangning Zeng
- Key Laboratory of Marine Ecosystem Dynamics, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou, China.
| | - Quanzhen Chen
- Key Laboratory of Marine Ecosystem Dynamics, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou, China; Key Laboratory of Ocean Space Resource Management Technology, Ministry of Natural Resources, Hangzhou, China
| | - Jianfang Chen
- Key Laboratory of Marine Ecosystem Dynamics, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou, China
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Liu J, Chen Y, Wang Y, Du M, Wu Z. Greenhouse gases emissions and dissolved carbon export affected by submarine groundwater discharge in a maricultural bay, Hainan Island, China. Sci Total Environ 2023; 857:159665. [PMID: 36302414 DOI: 10.1016/j.scitotenv.2022.159665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 10/07/2022] [Accepted: 10/19/2022] [Indexed: 06/16/2023]
Abstract
Greenhouse gases (GHG) emissions in coastal areas are influenced by both mariculture and submarine groundwater discharge (SGD). In this study, we first conducted a comprehensive investigation on carbon dioxide (CO2) and methane (CH4) emissions affected by SGD in a typical maricultural bay in north-eastern Hainan Island, China. A radon (222Rn) mass balance model revealed considerable high SGD rates (179 ± 92 cm d-1) in the bay, and the fluxes of SGD-derived dissolved inorganic carbon (DIC) and dissolved organic carbon (DOC) were 150.36 and 3.65 g C m-2 d-1, respectively. Time-series measurement results, including those for 222Rn, CH4, CO2, and physicochemical parameters, indicated that GHG dynamics in the maricultural bay mainly varied with tidal fluctuations, and isotopic evidence further revealed that acetate fermentation was the main mechanism of methanogenesis in the maricultural waters. The water-air fluxes in the maricultural area were 1.05 ± 0.32 and 9.49 ± 3.96 mmol m-2 day-1 for CH4 and CO2, respectively, implying that Qinglan Bay was a potential source of GHG released into the atmosphere. At the bay-scale, the CO2 emissions followed a spatial pattern, and the CH4 emissions were mainly affected by mariculture. The high CH4 emissions in the maricultural waters caused by maricultural activities, SGD, high temperature, and special hydrology resulted in the formation of the CH4-dominated total CO2-equivalent emissions model. Our study highlights the importance of considering the link between SGD and GHG emissions in maricultural bays when constraining global GHG fluxes.
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Affiliation(s)
- Jiawei Liu
- State Key Laboratory of Marine Geology, Tongji University, Shanghai 200092, China
| | - Yuanqing Chen
- State Key Laboratory of Marine Geology, Tongji University, Shanghai 200092, China
| | - Yiqing Wang
- State Key Laboratory of Marine Geology, Tongji University, Shanghai 200092, China
| | - Mengran Du
- Deep Sea Science Division, Institute of Deep Sea Science and Engineering, Chinese Academy of Sciences, Sanya, China
| | - Zijun Wu
- State Key Laboratory of Marine Geology, Tongji University, Shanghai 200092, China.
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Xiong Y, Gao L, Qu L, Xu J, Ma Z, Gao G. The contribution of fish and seaweed mariculture to the coastal fluxes of biogenic elements in two important aquaculture areas, China. Sci Total Environ 2023; 856:159056. [PMID: 36170919 DOI: 10.1016/j.scitotenv.2022.159056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 09/19/2022] [Accepted: 09/22/2022] [Indexed: 06/16/2023]
Abstract
Carbon, nitrogen, phosphorus and oxygen (CNPO) are essential biogenic elements, driving life activities in marine environments. However, the integrated research of fish and seaweed culture on the fluxes of CNPO is scarce. To bridge the research gap, the contribution of mariculture of fish and seaweeds to the fluxes of CNPO in two important mariculture provinces, Fujian and Guangdong, in China, was investigated for the first time. Data from published literature and this study were integrated to calculate the CNPO fluxes using relative formulas. CNP release and O2 loss caused by fish mariculture increased with year (2003-2020) and reached 185.55 ± 3.18 Gg C, 35.92 ± 0.51 Gg N, 7.27 ± 0.24 Gg P and 644.18 ± 11.05 Gg O2 for Fujian and 215.81 ± 2.51 Gg C, 41.77 ± 0.40 Gg N, 8.47 ± 0.19 Gg P and 749.23 ± 8.71 Gg O2 for Guangdong in 2020. The averaged P fluxes due to fish mariculture in Fujian and Guangdong during 2016-2020 are 2.2 folds of the Min River and 69 % of the Pearl River, respectively. CNP removal and O2 generation by seaweed culture in Fujian also increased with year (2003-2020) and reached 555.74 ± 16.45 Gg C, 58.44 ± 4.83 Gg N, 7.80 ± 1.41 Gg P and 1481.97 ± 43.86 Gg O2 in 2020. In contrast, seaweed culture in Guangdong resulted in maximal C (39.81 ± 1.43 Gg), N (4.33 ± 0.26 Gg) removal and O2 (106.15 ± 3.82 Gg) release in 2013 and maximal P (0.41 ± 0.03 Gg) removal in 2019. The averaged N and P fluxes due to seaweed culture in Fujian during 2016-2020 are 69 % and 2.4 folds of the Min River, respectively. The different mariculture structure leads to a net CNP sink in Fujian but a net CNP source in Guangdong. The net CNP source may lead to seawater acidification, eutrophication and deoxygenation in coastal areas. These findings supply solid data for adjusting mariculture structure to achieve CNPO neutrality within mariculture.
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Affiliation(s)
- Yonglong Xiong
- State Key Laboratory of Marine Environmental Science & College of Ocean and Earth Sciences, Xiamen University, Xiamen 361005, China
| | - Lin Gao
- State Key Laboratory of Marine Environmental Science & College of Ocean and Earth Sciences, Xiamen University, Xiamen 361005, China
| | - Liyin Qu
- Zhejiang Provincial Key Laboratory for Water Environment and Marine Biological Resources Protection, Wenzhou University, Wenzhou 325035, China
| | - Juntian Xu
- Jiangsu Key Laboratory for Marine Bioresources and Environment, Jiangsu Ocean University, Lianyungang 222005, China
| | - Zengling Ma
- Zhejiang Provincial Key Laboratory for Water Environment and Marine Biological Resources Protection, Wenzhou University, Wenzhou 325035, China
| | - Guang Gao
- State Key Laboratory of Marine Environmental Science & College of Ocean and Earth Sciences, Xiamen University, Xiamen 361005, China.
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30
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Chelyadina NS, Popov MA, Pospelova NV, Smyrnova LL. Effects of heavy metals on sex inversion of the mussel Mytilus galloprovincialis Lam., 1819 in coastal zone of the Black Sea. Mar Pollut Bull 2022; 185:114323. [PMID: 36347192 DOI: 10.1016/j.marpolbul.2022.114323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Revised: 10/22/2022] [Accepted: 10/28/2022] [Indexed: 06/16/2023]
Abstract
Sex inversion in the mussel Mytilus galloprovincialis under the influence of heavy metals as one of the reasons for the shift in the sex ratio in the mussel population on the Black Sea coastal zone of Crimea were considered in the work. The present study is the first to directly show that heavy metals can cause females of the mussel M. galloprovincialis to change into males during post-spawning development of gonads. The degree of impact of heavy metals on the sex change in mussel females was different and decreased in the following sequence: Cu2+ → Cd2+ → Hg2+ → Pb2+ → Zn2+. Copper ions had the greatest effect, which caused a sex inversion in 54 % of females. The heavy metals Hg2+ and Pb2+ were also quite toxic causing mortality in 13 % and 10 % of individuals, respectively. It is possible to use M. galloprovincialis as a model organism in the study of mechanism of environmental sex reversal in bivalves.
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Affiliation(s)
- N S Chelyadina
- A.O. Kovalevsky Institute of Biology of the Southern Seas, Nakhimov ave. 2, 299011 Sevastopol, Russian Federation
| | - M A Popov
- A.O. Kovalevsky Institute of Biology of the Southern Seas, Nakhimov ave. 2, 299011 Sevastopol, Russian Federation
| | - N V Pospelova
- A.O. Kovalevsky Institute of Biology of the Southern Seas, Nakhimov ave. 2, 299011 Sevastopol, Russian Federation.
| | - L L Smyrnova
- Institute of Natural and Technical Systems, Russian Academy of Sciences, Lenin str. 28, 299011 Sevastopol, Russian Federation
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31
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Zhang M, Hou L, Zhu Y, Zhang C, Li W, Lai X, Yang J, Li S, Shu H. Composition and distribution of bacterial communities and antibiotic resistance genes in fish of four mariculture systems. Environ Pollut 2022; 311:119934. [PMID: 35973451 DOI: 10.1016/j.envpol.2022.119934] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Revised: 08/05/2022] [Accepted: 08/06/2022] [Indexed: 06/15/2023]
Abstract
Fish-related antibiotic resistance genes (ARGs) have attracted attention for their potentially harmful effects on food safety and human health through the food chain transfer. However, the potential factors affecting these ARGs have not been fully explored. In this study, ARGs and bacterial communities in the fish gut, mucosal skin, and gill filaments in fish were comprehensively evaluated in four different mariculture systems formed by hybrid grouper (Epinephelus fuscoguttatus♀ × E. lanceolatus♂), Gracilaria bailinae, and Litopenaeus vannamei using different combinations. The results showed that 9 ARGs were detected in the gut and mucosal skin and 6 ARGs in the gill filaments. The detection rate of aphA1 was the highest, and the abundance was 1.91 × 10-3 - 6.30 × 10-2 copies per 16 S rRNA gene. Transposase gene (tnpA-04) was detected in all samples with the abundance of 3.57 × 10-3 - 3.59 × 10-2 copies per 16 S rRNA gene, and was strongly correlated with multiple ARGs (e.g., aphA1, tet(34), mphA-02). Proteobacteria, Deinococcus-Thermus, Firmicutes, and Bacteroidetes were the dominant phyla in the four mariculture systems, accounting for 65.1%-96.2% of the total bacterial community. Notably, the high relative abundance of Stenotrophomonas, a potential human pathogen, was elevated by 20.5% in the hybrid grouper gut in the monoculture system. In addition, variation partitioning analysis (VPA) showed that the difference in bacterial communities between mariculture systems was the main driving factor of ARGs distribution differences in hybrid groupers. This study provides a new comprehensive understanding of the characterization of fish-related ARGs contamination in different mariculture systems and facilitates the assessment of potential risks of ARGs and pathogen taxa to human health.
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Affiliation(s)
- Mingqing Zhang
- School of Life Sciences, Guangzhou University, Guangzhou 510006, China; State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory for Aquatic Economic Animals and Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, China
| | - Liping Hou
- School of Life Sciences, Guangzhou University, Guangzhou 510006, China
| | - Yating Zhu
- School of Life Sciences, Guangzhou University, Guangzhou 510006, China
| | - Cuiping Zhang
- School of Life Sciences, Guangzhou University, Guangzhou 510006, China
| | - Wen Li
- School of Life Sciences, Guangzhou University, Guangzhou 510006, China
| | - Xingxing Lai
- School of Life Sciences, Guangzhou University, Guangzhou 510006, China
| | - Jinlin Yang
- School of Life Sciences, Guangzhou University, Guangzhou 510006, China
| | - Shuisheng Li
- State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory for Aquatic Economic Animals and Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, China
| | - Hu Shu
- School of Life Sciences, Guangzhou University, Guangzhou 510006, China.
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32
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Li Z, Ma T, Sheng Y. Ecological risks assessment of sulfur and heavy metals in sediments in a historic mariculture environment, North Yellow Sea. Mar Pollut Bull 2022; 183:114083. [PMID: 36067678 DOI: 10.1016/j.marpolbul.2022.114083] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Revised: 07/24/2022] [Accepted: 08/21/2022] [Indexed: 06/15/2023]
Abstract
The environment behaviors of sulfur and heavy metals in sediments are closely related to sediment aging in mariculture area. In this study, the distributions and ecological risks of reduced inorganic sulfur (RIS) and heavy metals were investigated, along with the relationships between different occurrences of RIS and heavy metals. The results indicated that the adequate organic matter in mariculture sediments significantly enhanced the accumulation of acid volatile sulfur (AVS) compared to the control area. In shellfish farming area, biological sedimentation contributed to accumulation of AVS. The chromium (II)-reducible sulfur (CRS) was the main component of RIS in mariculture area. The environmental risks of heavy metals in mariculture area presented low levels. Principal component analysis (PCA) showed that distribution of Cu closely related to mariculture activities compared to other heavy metals. For ecological risks of heavy metals, the ratio of ∑(acid-soluble fraction (F1) + reducible fraction (F2) + oxidizable fraction (F3))/AVS was the appropriate index rather than conventional simultaneous extraction of heavy metals (SEM)/AVS, because SEM/AVS would overestimate the toxicity of heavy metals. AVS/RIS ratios significantly positively correlated with Pb (F2/(F1 + F2 + F3 + residual fraction (F4)), F2/∑F), Pb (F3/∑F), and Zn (F3/∑F), while significantly negatively correlated with Pb (F4/∑F) and Cu (F1/∑F). These results indicated that the accumulation of AVS during the mariculture process was conducive to the formation of F2 and F3 of Pb, and F3 of Zn, conversely to the formation for F4 of Pb and F1 of Cu, because it was opposite to the accumulation of CRS.
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Affiliation(s)
- Zhaoran Li
- Research Center for Coastal Environment Engineering Technology of Shandong Province, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, China; University of Chinese Academy of Sciences, Beijing, China
| | - Tao Ma
- Research Center for Coastal Environment Engineering Technology of Shandong Province, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, China; University of Chinese Academy of Sciences, Beijing, China
| | - Yanqing Sheng
- Research Center for Coastal Environment Engineering Technology of Shandong Province, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, China.
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33
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Zhang T, Lin L, Li D, Jian L, Li R, Wang J, Shi H. Assessment of trace element contamination in the historical nesting grounds of green sea turtle (Chelonia mydas) in Hainan Island, China. Environ Sci Pollut Res Int 2022; 29:76394-76403. [PMID: 35668262 DOI: 10.1007/s11356-022-21057-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Accepted: 05/20/2022] [Indexed: 06/15/2023]
Abstract
Trace element pollution is a potential threat to the reproduction of sea turtles. Hainan Island was previously the most important nesting ground of green sea turtles in China before they disappeared approximately 36 years ago. The Chinese government has encouraged restoration work on historical nesting grounds, and it is necessary to evaluate the status of these sites before conducting habitat restoration. This study analyzed the concentrations of seven trace elements in the surface sediments of 13 historical nesting grounds in Hainan. The average concentrations were 19.47 (Cr), 4.67 (Ni), 6.99 (Cu), 0.08 (Cd), 16.68 (Pb), 0.02 (Hg), and 5.27 (As) mg/kg, which were lower than the first-grade limit values of the GB (18668-2002) national standard in China. The concentrations were close to the background value, except for the relatively high Cd value. The potential ecological risk was ranked as Cd > Hg > As > Cu > Pb > Cr. The spatial distribution of trace element contamination in Hainan was uneven, with high potential ecological risk levels of Cd and Hg contamination in Longwan'gang, Shimeiwan, Yazhou Qu, and Fushicun. Marine mariculture, wastewater discharge, and fishing boats are the main sources of trace element contamination in Hainan. We recommend strengthening the control of Hg and Cd contamination sources, monitoring trace elements in relevant/interest areas, and the environmental protection department should curb local residents from directly discharging mariculture wastewater and domestic sewage into the sea.
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Affiliation(s)
- Ting Zhang
- Ministry of Education Key Laboratory for Ecology of Tropical Islands, Key Laboratory of Tropical Animal and Plant Ecology of Hainan Province, College of Life Sciences, Hainan Normal University, Haikou, 571158, China
| | - Liu Lin
- Ministry of Education Key Laboratory for Ecology of Tropical Islands, Key Laboratory of Tropical Animal and Plant Ecology of Hainan Province, College of Life Sciences, Hainan Normal University, Haikou, 571158, China
| | - Deqin Li
- Ministry of Education Key Laboratory for Ecology of Tropical Islands, Key Laboratory of Tropical Animal and Plant Ecology of Hainan Province, College of Life Sciences, Hainan Normal University, Haikou, 571158, China
| | - Li Jian
- Ministry of Education Key Laboratory for Ecology of Tropical Islands, Key Laboratory of Tropical Animal and Plant Ecology of Hainan Province, College of Life Sciences, Hainan Normal University, Haikou, 571158, China
| | - Rui Li
- Ministry of Education Key Laboratory for Ecology of Tropical Islands, Key Laboratory of Tropical Animal and Plant Ecology of Hainan Province, College of Life Sciences, Hainan Normal University, Haikou, 571158, China
| | - Jichao Wang
- Ministry of Education Key Laboratory for Ecology of Tropical Islands, Key Laboratory of Tropical Animal and Plant Ecology of Hainan Province, College of Life Sciences, Hainan Normal University, Haikou, 571158, China
| | - Haitao Shi
- Ministry of Education Key Laboratory for Ecology of Tropical Islands, Key Laboratory of Tropical Animal and Plant Ecology of Hainan Province, College of Life Sciences, Hainan Normal University, Haikou, 571158, China.
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34
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Wang W, Wang Y, Li Y, Song Y, Liu G, Yin Y, Cai Y. Effects of physical disturbance of sediment on the cycling of mercury in coastal regions. Sci Total Environ 2022; 838:156298. [PMID: 35660443 DOI: 10.1016/j.scitotenv.2022.156298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 05/24/2022] [Accepted: 05/24/2022] [Indexed: 06/15/2023]
Abstract
Mercury (Hg) is a global pollutant of health concern due to formation and bioaccumulation of methylmercury (MeHg) during its biogeochemical cycle. Coastal areas are important regions in the biogeochemical cycling of Hg (Liu et al., 2017), where often-occurring natural and anthropogenic perturbations affect Hg transport and transformation and the associated health risk from Hg. The rapidly growing mariculture associated with the rising global demand for food may have a profound effect on coastal Hg cycling, due to the environmental alterations (e.g., resuspension and sedimentation) caused by maricultural activities (e.g., bottom sowing and harvesting). Through simulating the effect of water scouring, a common harvesting method, this study investigated Hg migration and distribution in particulate and dissolved phases in Laizhou Bay of Bohai Sea, China, where mariculture exists extensively. Particulate total and methyl Hg (PTHg and PMeHg) in water (expressed as ng/L) increased sharply due to the resuspension of sediment, but decreased rapidly after a one-off scouring event. When normalized by particle mass, PTHg and PMeHg (ng/g) in suspended sediment particles were significantly higher than that in the initial sediment, suggesting a higher distribution coefficient and higher affinity to bind Hg in the suspended particles. This may be due to the smaller particle sizes, and higher contents of organic matter and Fe/Mn of suspended sediments compared to the initial sediment. While the concentrations of dissolved THg (DTHg) in water column showed minimum changes or decreased, dissolved MeHg (DMeHg) concentrations increased sharply after the perturbation, due to the possible release of MeHg from porewater and potential Hg methylation during the event. These results provide fundamental information needed for ecological and health risk assessment of Hg in mariculture, and highlights the increased mobility and bioaccumulation of MeHg during anthropogenic perturbations in these areas.
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Affiliation(s)
- Wenjie Wang
- Shandong Key Laboratory of Environmental Processes and Health, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, China
| | - Yingjun Wang
- Shandong Key Laboratory of Environmental Processes and Health, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, China.
| | - Yanbin Li
- Frontiers Science Center for Deep Ocean Multispheres and Earth System, Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao 266100, China.
| | - Yue Song
- Shandong Key Laboratory of Environmental Processes and Health, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, China
| | - Guangliang Liu
- Department of Chemistry & Biochemistry, Florida International University, Miami, FL 33199, United States
| | - Yongguang Yin
- Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Yong Cai
- Shandong Key Laboratory of Environmental Processes and Health, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, China; Department of Chemistry & Biochemistry, Florida International University, Miami, FL 33199, United States
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35
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Ji J, Sun Y, Yin X. Study on green output bias of China's mariculture technological progress. Environ Sci Pollut Res Int 2022; 29:60558-60571. [PMID: 35426016 DOI: 10.1007/s11356-022-20158-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Accepted: 04/04/2022] [Indexed: 06/14/2023]
Abstract
With the rapid development of mariculture, environmental pollution is becoming more and more serious. It is particularly important to study the green output bias of technological progress for the long-term sustainable development of mariculture. Based on the input-output data of the mariculture in 10 Chinese coastal areas from 2008 to 2018, the DEA-Malmquist index decomposition method is used to calculate the output-biased technological progress index and combines with the change of marginal substitution rate of output factors in different periods to identify the bias of technological progress between output factors and analyze the green output bias of mariculture technological progress. The results show that green technological progress is a crucial factor affecting green total factor productivity's growth in China's mariculture. During the study period, the number of regions where technological progress tends to reduce pollutant emissions shows a fluctuating upward trend, and the degree of technological progress toward green output is high. There are obvious differences among regions. The green output bias of technological progress in the South China Sea area is the highest, followed by the East China Sea area, and the Bohai Sea area is poor. Specifically, the green output bias of technological progress in Fujian, Guangdong, and Hainan is higher, while the green output bias of technological progress in Tianjin, Hebei, Shandong, and Guangxi is lower. According to the research results, corresponding policy suggestions are provided to realize the green and sustainable development of China's mariculture.
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Affiliation(s)
- Jianyue Ji
- School of Economics, Ocean University of China, Qingdao, 266100, Shandong, China
| | - Yanan Sun
- School of Economics, Ocean University of China, Qingdao, 266100, Shandong, China
| | - Xingmin Yin
- School of Economics, Ocean University of China, Qingdao, 266100, Shandong, China.
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36
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Jiang J, Zhou H, Zhang T, Yao C, Du D, Zhao L, Cai W, Che L, Cao Z, Wu XE. Machine learning to predict dynamic changes of pathogenic Vibrio spp. abundance on microplastics in marine environment. Environ Pollut 2022; 305:119257. [PMID: 35398156 DOI: 10.1016/j.envpol.2022.119257] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2021] [Revised: 03/14/2022] [Accepted: 04/01/2022] [Indexed: 05/27/2023]
Abstract
Microplastics are widely found in the marine environment. Recent studies have shown that pathogenic microorganisms can hitchhike on microplastics, which might act as a vector for the spread of pathogens. Vibrio spp. are known to be pathogenic to humans and can cause serious foodborne diseases. In this study, using datasets from an estuary and a mariculture zone in China, five machine learning models were established to predict the relative abundance of Vibrio spp. on microplastics. The results showed that deep neural network (DNN) model and RandomForest algorithm achieved the best predictive performance. Different data sources, data sampling, and processing methods had a little impact on the prediction performance of DNN and RandomForest models. SHapley Additive exPlanations (SHAP) indicated that salinity and temperature are the primary factors affecting the relative abundance of Vibrio spp. The prediction performances of the five machine learning models were further improved by feature selection, providing information to support future experimental research. The results of this study could help establish a long-term and dynamic monitoring system for the relative abundance of Vibrio spp. on microplastics in response to environmental factors as well as provide useful information for assessing the potential health impacts of microplastics on marine ecology and humans.
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Affiliation(s)
- Jiawen Jiang
- Department of Chemical and Biochemical Engineering, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Hua Zhou
- Department of Chemical and Biochemical Engineering, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Ting Zhang
- Department of Chemical and Biochemical Engineering, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Chuanyi Yao
- Department of Chemical and Biochemical Engineering, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Delin Du
- Department of Chemical and Biochemical Engineering, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Liang Zhao
- Department of Chemical and Biochemical Engineering, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Wenfang Cai
- School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Liming Che
- Department of Chemical and Biochemical Engineering, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Zhikai Cao
- Department of Chemical and Biochemical Engineering, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Xue E Wu
- Department of Chemical and Biochemical Engineering, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China.
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37
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Chen Y, Wang J, Zhao YG, Maqbool F, Gao M, Guo L, Ji J, Zhao X, Zhang M. Sulfamethoxazole removal from mariculture wastewater in moving bed biofilm reactor and insight into the changes of antibiotic and resistance genes. Chemosphere 2022; 298:134327. [PMID: 35304219 DOI: 10.1016/j.chemosphere.2022.134327] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 03/06/2022] [Accepted: 03/13/2022] [Indexed: 06/14/2023]
Abstract
Antibiotics are widely dosed in mariculture sector, resulting in substantial antibiotics residues. Hence, mariculture wastewater is urgent to be treated before discharging. In this study, the anoxic/oxic moving bed biofilm reactor (A/O-MBBR) was used to treat the wastewater containing sulfamethoxazole (SMX) from mariculture, SMX removal mechanism and the variation of antibiotic-resistant genes (ARGs) were investigated. The results showed that 22%-33% of SMX was removed by the bioreactor, where a small amount of SMX was adsorbed and stored by the extracellular polymers and most of SMX (>80%) was biodegraded in the anoxic tank. Occurrence of nitrate in anoxic condition was conducive to SMX degradation. Pseudomonas, Desulfuromusa, and Methanolobus species, as well as microbial catalase contributed to the SMX biotransformation. Quantitative PCR analysis of ARGs (sul1, sul2 and int1) and mRNA (sul1, sul2) showed that SMX enriched SMX-related ARGs and enhanced the expression of corresponding genes. Most of ARGs finally were discharged with effluent. Hence, the effluent from biologically based processes treating mariculture wastewater still contained antibiotics residue and resistance genes, which should be further controlled by suitable techniques.
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Affiliation(s)
- Yue Chen
- Shandong Provincial Key Laboratory of Marine Environment and Geological Engineering (MEGE), College of Environmental Science and Engineering, Ocean University of China, Qingdao, 266100, China
| | - Jinpeng Wang
- Shandong Provincial Key Laboratory of Marine Environment and Geological Engineering (MEGE), College of Environmental Science and Engineering, Ocean University of China, Qingdao, 266100, China
| | - Yang-Guo Zhao
- Shandong Provincial Key Laboratory of Marine Environment and Geological Engineering (MEGE), College of Environmental Science and Engineering, Ocean University of China, Qingdao, 266100, China; Key Lab of Marine Environmental Science and Ecology (Ocean University of China), Ministry of Education, Qingdao, 266100, China.
| | - Farhana Maqbool
- Department of Microbiology, Hazara University, Mansehra, 21300, Pakistan
| | - Mengchun Gao
- Shandong Provincial Key Laboratory of Marine Environment and Geological Engineering (MEGE), College of Environmental Science and Engineering, Ocean University of China, Qingdao, 266100, China; Key Lab of Marine Environmental Science and Ecology (Ocean University of China), Ministry of Education, Qingdao, 266100, China
| | - Liang Guo
- Shandong Provincial Key Laboratory of Marine Environment and Geological Engineering (MEGE), College of Environmental Science and Engineering, Ocean University of China, Qingdao, 266100, China; Key Lab of Marine Environmental Science and Ecology (Ocean University of China), Ministry of Education, Qingdao, 266100, China
| | - Junyuan Ji
- Shandong Provincial Key Laboratory of Marine Environment and Geological Engineering (MEGE), College of Environmental Science and Engineering, Ocean University of China, Qingdao, 266100, China; Key Lab of Marine Environmental Science and Ecology (Ocean University of China), Ministry of Education, Qingdao, 266100, China
| | - Xuning Zhao
- Shandong Provincial Key Laboratory of Marine Environment and Geological Engineering (MEGE), College of Environmental Science and Engineering, Ocean University of China, Qingdao, 266100, China
| | - Mo Zhang
- Shandong Provincial Key Laboratory of Marine Environment and Geological Engineering (MEGE), College of Environmental Science and Engineering, Ocean University of China, Qingdao, 266100, China
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Lam TWL, Fok L, Ma ATH, Li HX, Xu XR, Cheung LTO, Wong MH. Microplastic contamination in marine-cultured fish from the Pearl River Estuary, South China. Sci Total Environ 2022; 827:154281. [PMID: 35247408 DOI: 10.1016/j.scitotenv.2022.154281] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 02/15/2022] [Accepted: 02/28/2022] [Indexed: 06/14/2023]
Abstract
Microplastics are ubiquitous in the aquatic environment. However, the occurrence of microplastics in farmed fish is under-researched. Herein, microplastic abundance in the stomach and intestine of marine-cultured hybrid groupers (Epinephelus fuscoguttatus × Epinephelus lanceolatus) in the Pearl River Estuary (PRE) was examined. Microplastics were detected in all fish samples, with an average abundance of 35.36 n/individual or 0.62 n/g. The fish intestine contained more microplastics (23.91 n/individual, i.e., 1.10 n/g) than the stomach (12.80 n/individual, i.e., 0.37 n/g). In addition, the ingested microplastics were predominantly fibre-shaped (70.1%), and nearly 70% were smaller than 1 mm in diameter. Potential factors affecting the ingestion of microplastics by farmed hybrid groupers include fish diet and the availability of microplastics in their feeding habitat.
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Affiliation(s)
- Theresa Wing Ling Lam
- Department of Science and Environmental Studies, The Education University of Hong Kong, Tai Po, Hong Kong SAR, China
| | - Lincoln Fok
- Department of Science and Environmental Studies, The Education University of Hong Kong, Tai Po, Hong Kong SAR, China.
| | - Anson Tsz Hin Ma
- Department of Social Sciences, The Education University of Hong Kong, Tai Po, Hong Kong SAR, China
| | - Heng-Xiang Li
- Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China; Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 511458, China
| | - Xiang-Rong Xu
- Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China; Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 511458, China.
| | - Lewis Ting On Cheung
- Department of Social Sciences, The Education University of Hong Kong, Tai Po, Hong Kong SAR, China
| | - Ming Hung Wong
- Department of Science and Environmental Studies, The Education University of Hong Kong, Tai Po, Hong Kong SAR, China
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Froehlich HE, Gentry RR, Lester SE, Rennick M, Lemoine HR, Tapia-Lewin S, Gardner L. Piecing together the data of the U.S. marine aquaculture puzzle. J Environ Manage 2022; 308:114623. [PMID: 35121466 DOI: 10.1016/j.jenvman.2022.114623] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 01/25/2022] [Accepted: 01/25/2022] [Indexed: 06/14/2023]
Abstract
Aquaculture recently became the main source of global seafood production and many countries, including the United States, see potential in marine aquaculture to sustainably fill growing demand. The U.S. supports the majority of its seafood consumption through imports, and therefore identifying bottlenecks to domestic aquaculture growth is a priority at the federal and state level. Yet, one critical aspect that appears not yet addressed is the quality and accessibility of marine aquaculture data. In this study we conducted the first multi-state synthesis and comparison of the most comprehensive suite of species, volume, and value information on U.S. marine aquaculture over time, across the 23 marine coastal states. Using publicly available data sources from the U.S. Department of Agriculture (USDA), state-level solicited data that we aggregated, and data from the National Oceanic and Atmospheric Administration (NOAA), we found strong evidence that marine aquaculture has played an increasingly important role in marine coastal states, but also uncovered numerous data gaps and discrepancies between and within these sources. In particular, we found a dearth of volumetric data and millions in missing value (USD$). We found U.S. marine aquaculture is likely much more diverse, abundant and valuable than is currently reported, but the main sources of error in any given state remain unclear. We recommend U.S. state governments adopt a standardized, digital and annual data collection program, such as the NOAA Fisheries Information Networks. Better strategic aquaculture planning, management, and research depend on accurate data, and existing digital data infrastructures provide strong opportunities for improvement.
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Affiliation(s)
- Halley E Froehlich
- Environmental Studies, University of California, Santa Barbara, CA, 93106, USA; Ecology, Evolution, and Marine Biology, University of California, Santa Barbara, CA, 93106, USA.
| | - Rebecca R Gentry
- Department of Geography, Florida State University, Tallahassee, FL, 32306, USA
| | - Sarah E Lester
- Department of Geography, Florida State University, Tallahassee, FL, 32306, USA
| | - Mae Rennick
- Ecology, Evolution, and Marine Biology, University of California, Santa Barbara, CA, 93106, USA
| | - Hayley R Lemoine
- Department of Geography, Florida State University, Tallahassee, FL, 32306, USA
| | - Sebastian Tapia-Lewin
- Bren School of Environmental Science and Management, University of California, Santa Barbara, CA, 93106, USA
| | - Luke Gardner
- California Sea Grant, Scripps Institution of Oceanography, University of California San Diego, La Jolla, CA, 92037, USA; Moss Landing Marine Laboratories, San Jose State University, San Jose, CA, 95039, USA
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40
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Chen F, Lao Q, Liu M, Huang P, Chen B, Zhou X, Chen P, Chen K, Song Z, Cai M. Impact of intensive mariculture activities on microplastic pollution in a typical semi-enclosed bay: Zhanjiang Bay. Mar Pollut Bull 2022; 176:113402. [PMID: 35150985 DOI: 10.1016/j.marpolbul.2022.113402] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Revised: 01/18/2022] [Accepted: 01/25/2022] [Indexed: 06/14/2023]
Abstract
Microplastic (MP) was investigated in Zhanjiang Bay, a semi-enclosed bay in south China and famous for considerable mariculture industry, to evaluate whether mariculture activities accelerated MP pollution. The MP abundances ranged from 0 to 2.65 n/m3 (number/m3), showing seasonal variances with higher levels in May and September and lower levels in January. In the inner part of the bay, a significantly high MP abundance and predominance of foam were found during the oyster breeding period, and pollution sources were prone to be single and extensive. This suggested that MPs were strongly influenced by the intensive plastic products for oyster culturing, especially during breeding. Moreover, plastic cages used for culturing were the main source of MPs in the central part of the bay. By conducting statistical analysis for eight representative bays, the economic growth, social development, agriculture structure, and aquaculture development were supposed to influence the local MP pollution level.
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Affiliation(s)
- Fajin Chen
- College of Ocean and Meteorology, Guangdong Ocean University, Zhanjiang 524088, China
| | - Qibin Lao
- College of Ocean and Meteorology, Guangdong Ocean University, Zhanjiang 524088, China; Marine Environmental Monitoring Centre of Beihai, State Oceanic Administration, Beihai 266031, China
| | - Mengyang Liu
- College of Ocean and Earth Sciences, Xiamen University, Xiamen 361102, China
| | - Peng Huang
- College of Ocean and Meteorology, Guangdong Ocean University, Zhanjiang 524088, China; College of Ocean and Earth Sciences, Xiamen University, Xiamen 361102, China
| | - Bin Chen
- Coastal and Ocean Management Institute, Xiamen University, Xiamen 361102, China
| | - Xin Zhou
- College of Ocean and Meteorology, Guangdong Ocean University, Zhanjiang 524088, China
| | - Piao Chen
- Coastal and Ocean Management Institute, Xiamen University, Xiamen 361102, China
| | - Kai Chen
- College of Ocean and Earth Sciences, Xiamen University, Xiamen 361102, China
| | - Zhiguang Song
- College of Ocean and Meteorology, Guangdong Ocean University, Zhanjiang 524088, China
| | - Minggang Cai
- College of Ocean and Meteorology, Guangdong Ocean University, Zhanjiang 524088, China; College of Ocean and Earth Sciences, Xiamen University, Xiamen 361102, China; Coastal and Ocean Management Institute, Xiamen University, Xiamen 361102, China.
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41
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Peng B, Hossain KB, Lin Y, Zhang M, Zheng H, Yu J, Meng X, Wang J, Cui Y, Wu B, Lou L, Cai M. Assessment and sources identification of microplastics, PAHs and OCPs in the Luoyuan Bay, China: Based on multi-statistical analysis. Mar Pollut Bull 2022; 175:113351. [PMID: 35123274 DOI: 10.1016/j.marpolbul.2022.113351] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Revised: 12/12/2021] [Accepted: 01/12/2022] [Indexed: 06/14/2023]
Abstract
Luoyuan Bay is a mariculture influenced water body located in southeastern China. Multi-statistical techniques were applied to 21 sampling locations in the bay to identify the sources of microplastics and other pollutants in the sediment. In microplastics detection, fragment was the most abundant shape (~36%), and rayon was the dominant polymer (~59%). The size of more than 48% of total microplastics observed was less than 200 μm. The study showed that the upper part of Luoyuan Bay was dominated by microplastic pollution, while the lower part of the bay was dominated by persistent organic pollutants (PAHs, OCPs). Mariculture is one of the main sources of pollution in Luoyuan Bay. Apart from mariculture, there were additional sources such as industry, land reclamation, port, and so on; industry and land reclamation were the leading sources of microplastics, while port, industry, and mariculture were the primary sources of PAHs and OCPs.
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Affiliation(s)
- Bo Peng
- Nanjing Centre, China Geological Survey, Nanjing 210016, China
| | - Kazi Belayet Hossain
- Coastal and Ocean Management Institute, Xiamen University, Xiamen 361102, China; Key Laboratory of Marine Chemistry and Application (Xiamen University), Fujian Province University; College of Environment and Ecology, Xiamen University, Xiamen 361102, China; Fujian Provincial Key Laboratory for Coastal Ecology and Environmental Studies, Xiamen University, Xiamen 361102, China; State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen 361102, China
| | - Yan Lin
- Key Laboratory of Marine Chemistry and Application (Xiamen University), Fujian Province University; College of Ocean and Earth Science, Xiamen University, Xiamen 361102, China; State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen 361102, China; College of Environmental Science and Engineering, Xiamen University of Technology, Xiamen 361102, China
| | - Mingyu Zhang
- College of Ocean and Earth Science, Xiamen University, Xiamen 361102, China; State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen 361102, China
| | - Haowen Zheng
- College of Ocean and Earth Science, Xiamen University, Xiamen 361102, China; State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen 361102, China
| | - Junjie Yu
- Nanjing Centre, China Geological Survey, Nanjing 210016, China
| | - Xiangliang Meng
- Coastal and Ocean Management Institute, Xiamen University, Xiamen 361102, China; College of Environment and Ecology, Xiamen University, Xiamen 361102, China; State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen 361102, China
| | - Jilong Wang
- Nanjing Centre, China Geological Survey, Nanjing 210016, China
| | - Yaozong Cui
- College of Ocean and Earth Science, Xiamen University, Xiamen 361102, China; State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen 361102, China
| | - Bin Wu
- Nanjing Centre, China Geological Survey, Nanjing 210016, China
| | - Linghao Lou
- College of Ocean and Earth Science, Xiamen University, Xiamen 361102, China; State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen 361102, China
| | - Minggang Cai
- Coastal and Ocean Management Institute, Xiamen University, Xiamen 361102, China; Key Laboratory of Marine Chemistry and Application (Xiamen University), Fujian Province University; College of Environment and Ecology, Xiamen University, Xiamen 361102, China; College of Ocean and Earth Science, Xiamen University, Xiamen 361102, China; Fujian Provincial Key Laboratory for Coastal Ecology and Environmental Studies, Xiamen University, Xiamen 361102, China; State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen 361102, China.
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42
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Wang X, Lin Y, Zheng Y, Meng F. Antibiotics in mariculture systems: A review of occurrence, environmental behavior, and ecological effects. Environ Pollut 2022; 293:118541. [PMID: 34800588 DOI: 10.1016/j.envpol.2021.118541] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Revised: 11/12/2021] [Accepted: 11/15/2021] [Indexed: 06/13/2023]
Abstract
Antibiotics are widely applied to prevent and treat diseases occurred in mariculture. The often-open nature of mariculture production systems has led to antibiotic residue accumulation in the culturing and adjacent environments, which can adversely affect aquatic ecosystems, and even human. This review summarizes the occurrence, environmental behavior, and ecological effects of antibiotics in mariculture systems based on peer-reviewed papers. Forty-five different antibiotics (categorized into ten groups) have been detected in mariculture systems around the world, which is far greater than the number officially allowed. Indiscriminate use of antibiotics is relatively high among major producing countries in Asia, which highlights the need for stricter enforcement of regulations and policies and effective antibiotic removal methods. Compared with other environmental systems, some environmental characteristics of mariculture systems, such as high salinity and dissolved organic matter (DOM) content, can affect the migration and transformation processes of antibiotics. Residues of antibiotics favor the proliferation of antibiotic resistance genes (ARGs). Antibiotics and ARGs alter microbial communities and biogeochemical cycles, as well as posing threats to marine organisms and human health. This review may provide a valuable summary of the effects of antibiotics on mariculture systems.
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Affiliation(s)
- Xiaotong Wang
- Key Laboratory of Marine Environment and Ecology, Ministry of Education, Ocean University of China, Qingdao, 266100, China; College of Environmental Science and Engineering, Ocean University of China, Qingdao, 266100, China
| | - Yufei Lin
- National Marine Hazard Mitigation Service, Ministry of Natural Resource of the People's Republic of China, Beijing, 100194, China
| | - Yang Zheng
- College of Environmental Science and Engineering, Ocean University of China, Qingdao, 266100, China; National Marine Hazard Mitigation Service, Ministry of Natural Resource of the People's Republic of China, Beijing, 100194, China
| | - Fanping Meng
- Key Laboratory of Marine Environment and Ecology, Ministry of Education, Ocean University of China, Qingdao, 266100, China; College of Environmental Science and Engineering, Ocean University of China, Qingdao, 266100, China.
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43
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Farmery AK, Alexander K, Anderson K, Blanchard JL, Carter CG, Evans K, Fischer M, Fleming A, Frusher S, Fulton EA, Haas B, MacLeod CK, Murray L, Nash KL, Pecl GT, Rousseau Y, Trebilco R, van Putten IE, Mauli S, Dutra L, Greeno D, Kaltavara J, Watson R, Nowak B. Food for all: designing sustainable and secure future seafood systems. Rev Fish Biol Fish 2022; 32:101-121. [PMID: 34092936 PMCID: PMC8164055 DOI: 10.1007/s11160-021-09663-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Accepted: 05/21/2021] [Indexed: 05/19/2023]
Abstract
UNLABELLED Food from the sea can make a larger contribution to healthy and sustainable diets, and to addressing hunger and malnutrition, through improvements in production, distribution and equitable access to wild harvest and mariculture resources and products. The supply and consumption of seafood is influenced by a range of 'drivers' including ecosystem change and ocean regulation, the influence of corporations and evolving consumer demand, as well as the growing focus on the importance of seafood for meeting nutritional needs. These drivers need to be examined in a holistic way to develop an informed understanding of the needs, potential impacts and solutions that align seafood production and consumption with relevant 2030 Sustainable Development Goals (SDGs). This paper uses an evidence-based narrative approach to examine how the anticipated global trends for seafood might be experienced by people in different social, geographical and economic situations over the next ten years. Key drivers influencing seafood within the global food system are identified and used to construct a future scenario based on our current trajectory (Business-as-usual 2030). Descriptive pathways and actions are then presented for a more sustainable future scenario that strives towards achieving the SDGs as far as technically possible (More sustainable 2030). Prioritising actions that not only sustainably produce more seafood, but consider aspects of access and utilisation, particularly for people affected by food insecurity and malnutrition, is an essential part of designing sustainable and secure future seafood systems. SUPPLEMENTARY INFORMATION The online version contains supplementary material available at 10.1007/s11160-021-09663-x.
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Affiliation(s)
- A. K. Farmery
- Australian National Centre for Ocean Resource and Security, University of Wollongong, Wollongong, NSW Australia
- Centre for Marine Socioecology, University of Tasmania, Hobart, TAS Australia
| | - K. Alexander
- Centre for Marine Socioecology, University of Tasmania, Hobart, TAS Australia
- Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, TAS Australia
| | - K. Anderson
- Institute for Marine and Antarctic Studies, University of Tasmania, Newnham, TAS Australia
| | - J. L. Blanchard
- Centre for Marine Socioecology, University of Tasmania, Hobart, TAS Australia
- Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, TAS Australia
| | - C. G. Carter
- Centre for Marine Socioecology, University of Tasmania, Hobart, TAS Australia
- Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, TAS Australia
| | - K. Evans
- Centre for Marine Socioecology, University of Tasmania, Hobart, TAS Australia
- CSIRO Oceans and Atmosphere, Hobart, TAS Australia
| | - M. Fischer
- CSIRO Oceans and Atmosphere, St Lucia, QLD Australia
| | - A. Fleming
- Centre for Marine Socioecology, University of Tasmania, Hobart, TAS Australia
- CSIRO Land and Water, Hobart, TAS Australia
| | - S. Frusher
- Centre for Marine Socioecology, University of Tasmania, Hobart, TAS Australia
- Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, TAS Australia
| | - E. A. Fulton
- Centre for Marine Socioecology, University of Tasmania, Hobart, TAS Australia
- CSIRO Oceans and Atmosphere, Hobart, TAS Australia
| | - B. Haas
- Centre for Marine Socioecology, University of Tasmania, Hobart, TAS Australia
- Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, TAS Australia
| | - C. K. MacLeod
- Centre for Marine Socioecology, University of Tasmania, Hobart, TAS Australia
- Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, TAS Australia
| | - L. Murray
- College of Health, Massey University, Massey, New Zealand
| | - K. L. Nash
- Centre for Marine Socioecology, University of Tasmania, Hobart, TAS Australia
- Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, TAS Australia
| | - G. T. Pecl
- Centre for Marine Socioecology, University of Tasmania, Hobart, TAS Australia
- Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, TAS Australia
| | - Y. Rousseau
- Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, TAS Australia
| | - R. Trebilco
- Centre for Marine Socioecology, University of Tasmania, Hobart, TAS Australia
- CSIRO Oceans and Atmosphere, Hobart, TAS Australia
| | - I. E. van Putten
- Centre for Marine Socioecology, University of Tasmania, Hobart, TAS Australia
- CSIRO Oceans and Atmosphere, Hobart, TAS Australia
| | - S. Mauli
- Australian National Centre for Ocean Resource and Security, University of Wollongong, Wollongong, NSW Australia
| | - L. Dutra
- Centre for Marine Socioecology, University of Tasmania, Hobart, TAS Australia
- CSIRO Oceans and Atmosphere, St Lucia, QLD Australia
| | - D. Greeno
- College of Arts, Law and Education, University of Tasmania, Hobart, TAS Australia
| | - J. Kaltavara
- Australian National Centre for Ocean Resource and Security, University of Wollongong, Wollongong, NSW Australia
| | - R. Watson
- Centre for Marine Socioecology, University of Tasmania, Hobart, TAS Australia
- Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, TAS Australia
| | - B. Nowak
- Centre for Marine Socioecology, University of Tasmania, Hobart, TAS Australia
- Institute for Marine and Antarctic Studies, University of Tasmania, Newnham, TAS Australia
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44
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Farmery AK, Alexander K, Anderson K, Blanchard JL, Carter CG, Evans K, Fischer M, Fleming A, Frusher S, Fulton EA, Haas B, MacLeod CK, Murray L, Nash KL, Pecl GT, Rousseau Y, Trebilco R, van Putten IE, Mauli S, Dutra L, Greeno D, Kaltavara J, Watson R, Nowak B. Food for all: designing sustainable and secure future seafood systems. Rev Fish Biol Fish 2022; 32:101-121. [PMID: 34092936 DOI: 10.22541/au.160322471.16891119/v1] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Accepted: 05/21/2021] [Indexed: 05/23/2023]
Abstract
UNLABELLED Food from the sea can make a larger contribution to healthy and sustainable diets, and to addressing hunger and malnutrition, through improvements in production, distribution and equitable access to wild harvest and mariculture resources and products. The supply and consumption of seafood is influenced by a range of 'drivers' including ecosystem change and ocean regulation, the influence of corporations and evolving consumer demand, as well as the growing focus on the importance of seafood for meeting nutritional needs. These drivers need to be examined in a holistic way to develop an informed understanding of the needs, potential impacts and solutions that align seafood production and consumption with relevant 2030 Sustainable Development Goals (SDGs). This paper uses an evidence-based narrative approach to examine how the anticipated global trends for seafood might be experienced by people in different social, geographical and economic situations over the next ten years. Key drivers influencing seafood within the global food system are identified and used to construct a future scenario based on our current trajectory (Business-as-usual 2030). Descriptive pathways and actions are then presented for a more sustainable future scenario that strives towards achieving the SDGs as far as technically possible (More sustainable 2030). Prioritising actions that not only sustainably produce more seafood, but consider aspects of access and utilisation, particularly for people affected by food insecurity and malnutrition, is an essential part of designing sustainable and secure future seafood systems. SUPPLEMENTARY INFORMATION The online version contains supplementary material available at 10.1007/s11160-021-09663-x.
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Affiliation(s)
- A K Farmery
- Australian National Centre for Ocean Resource and Security, University of Wollongong, Wollongong, NSW Australia
- Centre for Marine Socioecology, University of Tasmania, Hobart, TAS Australia
| | - K Alexander
- Centre for Marine Socioecology, University of Tasmania, Hobart, TAS Australia
- Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, TAS Australia
| | - K Anderson
- Institute for Marine and Antarctic Studies, University of Tasmania, Newnham, TAS Australia
| | - J L Blanchard
- Centre for Marine Socioecology, University of Tasmania, Hobart, TAS Australia
- Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, TAS Australia
| | - C G Carter
- Centre for Marine Socioecology, University of Tasmania, Hobart, TAS Australia
- Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, TAS Australia
| | - K Evans
- Centre for Marine Socioecology, University of Tasmania, Hobart, TAS Australia
- CSIRO Oceans and Atmosphere, Hobart, TAS Australia
| | - M Fischer
- CSIRO Oceans and Atmosphere, St Lucia, QLD Australia
| | - A Fleming
- Centre for Marine Socioecology, University of Tasmania, Hobart, TAS Australia
- CSIRO Land and Water, Hobart, TAS Australia
| | - S Frusher
- Centre for Marine Socioecology, University of Tasmania, Hobart, TAS Australia
- Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, TAS Australia
| | - E A Fulton
- Centre for Marine Socioecology, University of Tasmania, Hobart, TAS Australia
- CSIRO Oceans and Atmosphere, Hobart, TAS Australia
| | - B Haas
- Centre for Marine Socioecology, University of Tasmania, Hobart, TAS Australia
- Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, TAS Australia
| | - C K MacLeod
- Centre for Marine Socioecology, University of Tasmania, Hobart, TAS Australia
- Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, TAS Australia
| | - L Murray
- College of Health, Massey University, Massey, New Zealand
| | - K L Nash
- Centre for Marine Socioecology, University of Tasmania, Hobart, TAS Australia
- Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, TAS Australia
| | - G T Pecl
- Centre for Marine Socioecology, University of Tasmania, Hobart, TAS Australia
- Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, TAS Australia
| | - Y Rousseau
- Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, TAS Australia
| | - R Trebilco
- Centre for Marine Socioecology, University of Tasmania, Hobart, TAS Australia
- CSIRO Oceans and Atmosphere, Hobart, TAS Australia
| | - I E van Putten
- Centre for Marine Socioecology, University of Tasmania, Hobart, TAS Australia
- CSIRO Oceans and Atmosphere, Hobart, TAS Australia
| | - S Mauli
- Australian National Centre for Ocean Resource and Security, University of Wollongong, Wollongong, NSW Australia
| | - L Dutra
- Centre for Marine Socioecology, University of Tasmania, Hobart, TAS Australia
- CSIRO Oceans and Atmosphere, St Lucia, QLD Australia
| | - D Greeno
- College of Arts, Law and Education, University of Tasmania, Hobart, TAS Australia
| | - J Kaltavara
- Australian National Centre for Ocean Resource and Security, University of Wollongong, Wollongong, NSW Australia
| | - R Watson
- Centre for Marine Socioecology, University of Tasmania, Hobart, TAS Australia
- Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, TAS Australia
| | - B Nowak
- Centre for Marine Socioecology, University of Tasmania, Hobart, TAS Australia
- Institute for Marine and Antarctic Studies, University of Tasmania, Newnham, TAS Australia
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Manlosa AO, Hornidge AK, Schlüter A. Institutions and institutional changes: aquatic food production in Central Luzon, Philippines. Reg Environ Change 2021; 21:127. [PMID: 34873393 PMCID: PMC8637508 DOI: 10.1007/s10113-021-01853-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Accepted: 10/16/2021] [Indexed: 06/13/2023]
Abstract
UNLABELLED Aquaculture is the most rapidly growing food production sector globally. In certain coastal social-ecological systems, this has resulted in significant changes and sustainability challenges. In particular, coastal environments which used to support only capture fisheries are becoming sites for brackish water aquaculture production; this impacts the sustainability of aquatic food production. Sustainability challenges associated with aquaculture expansion and intensification necessitate a contextually rooted understanding of institutions and institutional changes which can be used as an informed basis for leveraging institutions to achieve desirable sustainability outcomes in the aquatic food sector. This research used a qualitative empirical case study involving in-depth interviews, participant observation, and analysis of institutional documents in the region of Central Luzon, Philippines. It applied the inter-institutional systems concept which considers multiple institutions with distinct but linked purposes and functions in the societal spheres of state, market, and civil society. The study found that aquaculture emerged as an important livelihood because of rice farmers' need to adapt to saltwater intrusion into what were formerly rice farms. It grew into an industry due to developments in the availability and accessibility of inputs such as fingerlings and feeds. This process was also driven by the high demand and high profitability of fish farming at the time. Regulatory institutions have not adequately adapted to protect the environment. Market institutions adapted but the changes mostly benefited consignacions (middlemen) and large-scale players. However, organised groups of collaborating smallholder fishers and fish farmers are helping to address the disadvantages they face. SUPPLEMENTARY INFORMATION The online version contains supplementary material available at 10.1007/s10113-021-01853-4.
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Affiliation(s)
- Aisa O. Manlosa
- Social Sciences Department, Leibniz Centre for Tropical Marine Research (ZMT), Fahrenheitstraße 8, 28359 Bremen, Germany
| | - Anna-Katharina Hornidge
- German Development Institute / Deutsches Institut für Entwicklungspolitik (DIE), Tulpenfeld 6, 53113 Bonn, Germany
- Institute of Political Sciences and Sociology, University of Bonn, Regina-Pacis-Weg 3, 53113 Bonn, Germany
| | - Achim Schlüter
- Social Sciences Department, Leibniz Centre for Tropical Marine Research (ZMT), Fahrenheitstraße 8, 28359 Bremen, Germany
- Department of Business and Economics, Jacobs University, Campus Ring 1, 28759 Bremen, Germany
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Lu J, Lin Y, Wu J, Zhang C. Continental-scale spatial distribution, sources, and health risks of heavy metals in seafood: challenge for the water-food-energy nexus sustainability in coastal regions? Environ Sci Pollut Res Int 2021; 28:63815-63828. [PMID: 33400129 DOI: 10.1007/s11356-020-11904-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Accepted: 11/30/2020] [Indexed: 06/12/2023]
Abstract
Rare information on the seafood safety and the coastal water-food-energy nexus sustainability in terms of seafood safety is available. This study investigated the distribution of heavy metals in 3 kinds of seafood (bivalve molluscs, fish, and crustaceans) collected from coastal areas along the 18,000 km coastline of China. Risk assessment and source apportionment of heavy metals, and the coastal water-food-energy nexus sustainability in terms of heavy metal pollution were also performed. The results showed that total concentrations of 8 heavy metals (Cu, Pb, Zn, Cd, Cr, Hg, As, and Ni) in seafood varied with sampling sites and species by following the order of bivalve molluscs > crustaceans > fish. Estimated daily intake (EDI) analysis indicated that it was safe for humans to consume seafood in all sampling sites. Non-cancer risks posed by heavy metals were acceptable for 99.1% of adult and 97.7% of children. However, Cr and As in 72% of fish samples caused high cancer risks for children. The farmed fish posed relatively low risk in comparison with the wild fish suggested that it might be safer to consume farmed fish than wild fish. Source apportionment demonstrated that the fossil energy consumption (coal combustion and vehicle exhaust), seawater, and metallurgic dust might serve as the possible main sources of heavy metals in seafood. Based on the policy scenario analysis, the fossil-energy-controlling policy and clean coastal water action were beneficial to the seafood safety by reducing target heavy metals in seafood. These findings provided comprehensive information on seafood safety and the water-food-energy nexus sustainability in coastal regions at continental-scale in terms of heavy metal pollution.
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Affiliation(s)
- Jian Lu
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research (YIC), Chinese Academy of Sciences (CAS); Shandong Key Laboratory of Coastal Environmental Processes, YICCAS, Yantai, 264003, Shandong, People's Republic of China.
- University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China.
- Center for Ocean Mega-Science, Chinese Academy of Sciences, 7 Nanhai Road, Qingdao, 266071, People's Republic of China.
| | - Yichen Lin
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research (YIC), Chinese Academy of Sciences (CAS); Shandong Key Laboratory of Coastal Environmental Processes, YICCAS, Yantai, 264003, Shandong, People's Republic of China
- University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China
| | - Jun Wu
- University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China
| | - Cui Zhang
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research (YIC), Chinese Academy of Sciences (CAS); Shandong Key Laboratory of Coastal Environmental Processes, YICCAS, Yantai, 264003, Shandong, People's Republic of China
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Yang B, Gao X, Zhao J, Liu Y, Xie L, Lv X, Xing Q. Summer deoxygenation in a bay scallop (Argopecten irradians) farming area: The decisive role of water temperature, stratification and beyond. Mar Pollut Bull 2021; 173:113092. [PMID: 34744011 DOI: 10.1016/j.marpolbul.2021.113092] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 10/18/2021] [Accepted: 10/19/2021] [Indexed: 06/13/2023]
Abstract
During 2015-2020, 26 cruises were carried out in a bay scallop farming area, North Yellow Sea, to study the dissolved oxygen (DO) dynamics and its controlling factors. Significant DO depletion (deoxygenation) was observed in the summertime with the decrease rates of 0.31-0.55 and 0.96-2.10 μmol d-1 in the surface and bottom waters, respectively, which were comprehensively forced by temperature, photosynthesis and microbial respiration. Seasonally, temperature was the main driver of the deoxygenation processes. In the surface water, DO dynamics were dominated by temperature-induced solubility changes, while the photosynthesis offset the effects of physical processes to a certain extent; in the bottom water, its dynamics were mainly attributed to the comprehensive control of temperature-induced solubility changes and biological respiration. Overall, the results suggested that the occurrence of hypoxia and acidification in the coastal waters were highly associated with the formation of temperature-induced stratification under complex hydrodynamic processes.
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Affiliation(s)
- Bo Yang
- CAS Key Laboratory of Coastal Zone Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, Shandong 264003, China; University of Chinese Academy of Sciences, Beijing 100049, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao, Shandong 266071, China
| | - Xuelu Gao
- CAS Key Laboratory of Coastal Zone Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, Shandong 264003, China; University of Chinese Academy of Sciences, Beijing 100049, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao, Shandong 266071, China.
| | - Jianmin Zhao
- CAS Key Laboratory of Coastal Zone Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, Shandong 264003, China; University of Chinese Academy of Sciences, Beijing 100049, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao, Shandong 266071, China.
| | - Yongliang Liu
- CAS Key Laboratory of Coastal Zone Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, Shandong 264003, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Lei Xie
- CAS Key Laboratory of Coastal Zone Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, Shandong 264003, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xiaoqing Lv
- CAS Key Laboratory of Coastal Zone Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, Shandong 264003, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Qianguo Xing
- CAS Key Laboratory of Coastal Zone Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, Shandong 264003, China; University of Chinese Academy of Sciences, Beijing 100049, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao, Shandong 266071, China
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Leung MML, Ho YW, Maboloc EA, Lee CH, Wang Y, Hu M, Cheung SG, Fang JKH. Determination of microplastics in the edible green-lipped mussel Perna viridis using an automated mapping technique of Raman microspectroscopy. J Hazard Mater 2021; 420:126541. [PMID: 34587714 DOI: 10.1016/j.jhazmat.2021.126541] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2021] [Revised: 06/11/2021] [Accepted: 06/28/2021] [Indexed: 06/13/2023]
Abstract
Microplastics are prevalent in marine environments and seafood and thus can easily end up in human diets. This has raised serious concerns worldwide, particularly in Hong Kong where the seafood consumption per capita can be three times higher than the global average. This study focused on the green-lipped mussel Perna viridis, a popular seafood species which is subject to a high risk of contamination by microplastics due to its filter-feeding nature. P. viridis was collected from five mariculture sites in Hong Kong and assessed for its body load of microplastics using an automated Raman mapping approach. Microplastics were found in all sites, with an average of 1.60-14.7 particles per mussel per site, or 0.21-1.83 particles per g wet weight. Polypropylene, polyethylene, polystyrene and polyethylene terephthalate were detected among the microplastics, mainly as fragments or fibres in the size range of 40-1000 µm. It was estimated that through consumption of P. viridis, the population in Hong Kong could ingest up to 10,380 pieces of microplastics per person per year. These estimated rates were high compared to the values reported worldwide, suggesting the potential human health risk of microplastics in Hong Kong and adjacent areas.
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Affiliation(s)
- Matthew Ming-Lok Leung
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Kowloon, Hong Kong SAR, China
| | - Yuen-Wa Ho
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Kowloon, Hong Kong SAR, China
| | - Elizaldy Acebu Maboloc
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Kowloon, Hong Kong SAR, China
| | - Cheng-Hao Lee
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Kowloon, Hong Kong SAR, China; Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Kowloon, Hong Kong SAR, China
| | - Youji Wang
- International Research Center for Marine Biosciences at Shanghai Ocean University, Ministry of Science and Technology, Shanghai 201306, China
| | - Menghong Hu
- International Research Center for Marine Biosciences at Shanghai Ocean University, Ministry of Science and Technology, Shanghai 201306, China
| | - Siu-Gin Cheung
- State Key Laboratory of Marine Pollution, City University of Hong Kong, Kowloon, Hong Kong SAR, China; Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong SAR, China
| | - James Kar-Hei Fang
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Kowloon, Hong Kong SAR, China; State Key Laboratory of Marine Pollution, City University of Hong Kong, Kowloon, Hong Kong SAR, China; Research Institute for Future Food, The Hong Kong Polytechnic University, Kowloon, Hong Kong SAR, China.
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Xu W, Lin W, Wang Z, Gao Y, Luo Y, Grossart HP, Guo Y, Gao Q, Huang L, Luo Z. Disentangling the abundance and structure of Vibrio communities in a semi-enclosed Bay with mariculture (Dongshan Bay, Southern China). Comput Struct Biotechnol J 2021; 19:4381-93. [PMID: 34429854 DOI: 10.1016/j.csbj.2021.07.040] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 07/26/2021] [Accepted: 07/29/2021] [Indexed: 11/23/2022] Open
Abstract
The genus Vibrio contains a diverse group of heterotrophic bacteria, which are members of ubiquitous and abundant microbial communities in coastal ecosystems. Vibrio has been frequently found in a wide range of marine environments either by employing Vibrio-specific 16S rRNA sequencing or culturing methods. A combination of molecular and cultivation-dependent methods was developed to more precisely discriminate between different members of the genus Vibrio in seawater. This newly developed assay was subsequently applied to characterize Vibrio community composition in surface water at 18 mariculture sites. It Substantially improved the taxonomic resolution of Vibrio species when compared to traditional 16S rRNA analysis. Our qPCR and cultivation analyses revealed that average Vibrio abundance (Vibrio 16S rRNA gene copy numbers: 3.46 × 106 to 6.70 × 106 copies L−1) and live cell numbers (5.65 × 104–5.75 × 105 cfu mL−1) are significantly related to pH. Total bacteria and Vibrio-specific 16S rRNA metabarcode sequenceing resulted in a total of 10 and 32 operational taxonomic units (OTUs), respectively, and 15 Vibrio species were identified by targeted cultivation of Vibrio strains, with Vibrio fortis and V. brasiliensis dominating in the mariculture areas. The purpose of this study was to combine several analytical methods to improve current sequence-based Vibrio community surveys, and to prove for the effectiveness of this methodological approach comprehensively testing for Vibrio dynamics in different coastal environments.
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Li XY, Yu RC, Geng HX, Li YF. Increasing dominance of dinoflagellate red tides in the coastal waters of Yellow Sea, China. Mar Pollut Bull 2021; 168:112439. [PMID: 33993042 DOI: 10.1016/j.marpolbul.2021.112439] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2020] [Revised: 04/22/2021] [Accepted: 04/24/2021] [Indexed: 06/12/2023]
Abstract
The Yellow Sea (YS) has been subjected to harmful algal blooms (HABs) for several decades. In this study, we compiled and analyzed a dataset of 165 red tides from 1972 to 2017 and a dataset of green tides from 2008 to 2017 in the YS. The most notable feature of red tides in the YS is the increasing dominance of dinoflagellate red tides in terms of frequency, scale, seasonal distribution, spatial coverage, and red tide causative species. The increasing dominance of dinoflagellate red tides is closely related to eutrophication and the development of the mariculture industry in the YS. However, the dinoflagellate red tides in the northern Yellow Sea (NYS) and the southern Yellow Sea (SYS) have different features. The apparent changes in red tides in the SYS in terms of frequency and seasonal patterns might have been caused by recurrent large-scale green tides in the last decade.
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Affiliation(s)
- Xiao-Yu Li
- CAS Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Ren-Cheng Yu
- CAS Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Laboratory for Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, China; University of Chinese Academy of Sciences, Beijing 100049, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China.
| | - Hui-Xia Geng
- Changjiang River Estuary Ecosystem Research Station, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
| | - Yi-Fan Li
- CAS Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; University of Chinese Academy of Sciences, Beijing 100049, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China
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