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Ezaier Y, Hader A, Latif A, Khan ME, Ali W, Ali SK, Khan AU, Bashiri AH, Zakri W, Yusuf M, Rajamohan N, Ibrahim H. Solving the fouling mechanisms in composite membranes for water purification: An advance approach. Environ Res 2024; 250:118487. [PMID: 38365055 DOI: 10.1016/j.envres.2024.118487] [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: 01/17/2024] [Accepted: 02/13/2024] [Indexed: 02/18/2024]
Abstract
With the increasing population worldwide more wastewater is created by human activities and discharged into the waterbodies. This is causing the contamination of aquatic bodies, thus disturbing the marine ecosystems. The rising population is also posing a challenge to meet the demands of fresh drinking water in the water-scarce regions of the world, where drinking water is made available to people by desalination process. The fouling of composite membranes remains a major challenge in water desalination. In this innovative study, we present a novel probabilistic approach to analyse and anticipate the predominant fouling mechanisms in the filtration process. Our establishment of a robust theoretical framework hinges upon the utilization of both the geometric law and the Hermia model, elucidating the concept of resistance in series (RIS). By manipulating the transmembrane pressure, we demonstrate effective management of permeate flux rate and overall product quality. Our investigations reveal a decrease in permeate flux in three distinct phases over time, with the final stage marked by a significant reduction due to the accumulation of a denser cake layer. Additionally, an increase in transmembrane pressure leads to a correlative rise in permeate flux, while also exerting negative effects such as membrane ruptures. Our study highlights the minimal immediate impact of the intermediate blocking mechanism (n = 1) on permeate flux, necessitating continuous monitoring for potential long-term effects. Additionally, we note a reduced membrane selectivity across all three fouling types (n = 0, n = 1.5, n = 2). Ultimately, our findings indicate that the membrane undergoes complete fouling with a probability of P = 0.9 in the presence of all three fouling mechanisms. This situation renders the membrane unable to produce water at its previous flow rate, resulting in a significant reduction in the desalination plant's productivity. I have demonstrated that higher pressure values notably correlate with increased permeate flux across all four membrane types. This correlation highlights the significant role of TMP in enhancing the production rate of purified water or desired substances through membrane filtration systems. Our innovative approach opens new perspectives for water desalination management and optimization, providing crucial insights into fouling mechanisms and proposing potential strategies to address associated challenges.
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Affiliation(s)
- Yassine Ezaier
- Bio-Geosciences and Materials Engineering Laboratory, Ecole Normale Supérieure, University Hassan II, Casablanca, Morocco
| | - Ahmed Hader
- Bio-Geosciences and Materials Engineering Laboratory, Ecole Normale Supérieure, University Hassan II, Casablanca, Morocco; Regional Center for Education and Training Professions, Settat establishment, Morocco
| | - Abdelaziz Latif
- Bio-Geosciences and Materials Engineering Laboratory, Ecole Normale Supérieure, University Hassan II, Casablanca, Morocco
| | - Mohammad Ehtisham Khan
- Department of Chemical Engineering Technology, College of Applied Industrial Technology, Jazan University, Jazan, 45142, Saudi Arabia.
| | - Wahid Ali
- Department of Chemical Engineering Technology, College of Applied Industrial Technology, Jazan University, Jazan, 45142, Saudi Arabia
| | - Syed Kashif Ali
- Department of Chemistry, Faculty of Science Jazan University, Jazan, PO Box 114, Saudi Arabia
| | - Anwar Ulla Khan
- Department of Electrical Engineering, College of Engineering, Jazan University, P. O. Box 114, Jazan, 45142, Saudi Arabia
| | - Abdullateef H Bashiri
- Department of Mechanical Engineering, College of Engineering, Jazan University, P. O. Box 114, Jazan, 45142, Saudi Arabia
| | - Waleed Zakri
- Department of Mechanical Engineering, College of Engineering, Jazan University, P. O. Box 114, Jazan, 45142, Saudi Arabia
| | - Mohammad Yusuf
- Clean Energy Technologies Research Institute (CETRI), Faculty of Engineering and Applied Science, University of Regina, 3737 Wascana Parkway, Regina, SK, S4S 0A2, Canada; Centre of Research Impact and Outcome, Chitkara University Institute of Engineering and Technology, Chitkara University, Punjab, India.
| | - Natarajan Rajamohan
- Chemical Engineering Section, Faculty of Engineering, Sohar University, P C 311, Sohar, Oman
| | - Hussameldin Ibrahim
- Clean Energy Technologies Research Institute (CETRI), Faculty of Engineering and Applied Science, University of Regina, 3737 Wascana Parkway, Regina, SK, S4S 0A2, Canada
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Knorrn AH, Teder T, Kaasik A, Kreitsberg R. Beneath the blades: Marine wind farms support parts of local biodiversity - a systematic review. Sci Total Environ 2024:173241. [PMID: 38768731 DOI: 10.1016/j.scitotenv.2024.173241] [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] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Revised: 04/26/2024] [Accepted: 05/12/2024] [Indexed: 05/22/2024]
Abstract
Offshore wind energy developments in European waters are rapidly expanding to meet the increasing global demand for renewable energy. These developments provide new substrates for species colonisation, but also introduce changes in electromagnetic fields, noise levels, and hydrological conditions. Understanding how these man-made structures affect marine biodiversity across various species groups is crucial, yet our knowledge in this field remains incomplete. In this synthesis paper, based on 14 case studies conducted in northeastern Atlantic (North, Irish and Baltic seas), we aggregated species-level data on abundance, biomass, and other quantity proxies spanning the entire food chain from invertebrates to mammals, and compared these variables between wind farms and nearby control sites. Overall, our analysis revealed that in wind farm areas, species tend to occur at higher quantities than in control areas. Additionally, we noticed a slight trend where the positive effect of wind farms was more pronounced in newly established ones, gradually diminishing as wind farms aged. None of the tested covariates (depth, distance from coastline, years in commission) nor species' characteristics (habitat and spawning types, trophic level) showed statistical significance. When examining species groups individually, there was a tendency for wind farm areas to harbour higher quantities of polychaetes, echinoderms and demersal fishes. These findings suggest that wind farms contribute to the so-called reef-effect, providing shelter and food supplies to their inhabitants and acting as no-take-zones. Our results support the idea that wind farms could serve as zones of increased local biodiversity, potentially facilitating spillover effects to nearby areas for certain species groups. Further studies are necessary to gain a more comprehensive understanding of the adverse effects of wind farms on associated biodiversity, while also exploring avenues to amplify their positive impacts.
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Affiliation(s)
- Alexander H Knorrn
- Marine Research Department, Senckenberg am Meer, Südstrand 40, 26382 Wilhelmshaven, Germany; MARUM, Research Faculty University of Bremen, Loebener Str. 8, 28359 Bremen, Germany.
| | - Tiit Teder
- Department of Zoology, Institute of Ecology and Earth Sciences, University of Tartu, Juhan Liivi 2, 50409 Tartu, Estonia; Faculty of Environmental Sciences, Department of Ecology, Czech University of Life Sciences Prague, Kamýcka 129, Praha 6, Suchdol 165 21, Czech Republic
| | - Ants Kaasik
- Department of Zoology, Institute of Ecology and Earth Sciences, University of Tartu, Juhan Liivi 2, 50409 Tartu, Estonia
| | - Randel Kreitsberg
- Department of Zoology, Institute of Ecology and Earth Sciences, University of Tartu, Juhan Liivi 2, 50409 Tartu, Estonia
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Pereto C, Baudrimont M, Coynel A. Global natural concentrations of Rare Earth Elements in aquatic organisms: Progress and lessons from fifty years of studies. Sci Total Environ 2024; 922:171241. [PMID: 38417499 DOI: 10.1016/j.scitotenv.2024.171241] [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: 01/26/2024] [Accepted: 02/22/2024] [Indexed: 03/01/2024]
Abstract
Rare Earth Elements (REEs) consist of a coherent group of elements with similar physicochemical properties and exhibit comparable geochemical behaviors in the environment, making them excellent tracers of environmental processes. For the past 50 years, scientific communities investigated the REE concentrations in biota through various types of research (e.g. exploratory studies, environmental proxies). The extensive development of new technologies over the past two decades has led to the increased exploitation and use of REEs, resulting in their release into aquatic ecosystems. The bioaccumulation of these emerging contaminants has prompted scientific communities to explore the fate of anthropogenic REEs within aquatic ecosystems. To achieve this, it is necessary to determine the natural concentration levels of REEs in aquatic organisms and the factors controlling REE dynamics. However, knowledge gaps still exist, and no comprehensive approach currently exists to assess the REE concentrations at the ecosystem scale or the factors controlling these concentrations in aquatic organisms. Based on a database comprising 102 articles, this study aimed to: i) provide a retrospective analysis of research topics over a 50-year period; ii) establish reference REE concentrations in several representative phyla of aquatic ecosystems; and iii) examine the global-scale influences of habitat and trophic position as controlling factors of REE concentrations in organisms. This study provides reference concentrations for 16 phyla of freshwater or marine organisms. An influence of habitat REE concentrations on organisms has been observed on a global scale. A trophic dilution of REE concentrations was highlighted, indicating the absence of biomagnification. Lastly, the retrospective approach of this study revealed several research gaps and proposed corresponding perspectives to address them. Embracing these perspectives in the coming years will lead to a better understanding of the risks of anthropogenic REE exposure for aquatic organisms.
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Affiliation(s)
- Clément Pereto
- Univ. Bordeaux, CNRS, Bordeaux INP, EPOC, UMR 5805, F-33600 Pessac, France.
| | - Magalie Baudrimont
- Univ. Bordeaux, CNRS, Bordeaux INP, EPOC, UMR 5805, F-33600 Pessac, France.
| | - Alexandra Coynel
- Univ. Bordeaux, CNRS, Bordeaux INP, EPOC, UMR 5805, F-33600 Pessac, France.
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Fidai YA, Botelho Machado C, Dominguez Almela V, Oxenford HA, Jayson-Quashigah PN, Tonon T, Dash J. Innovative spectral characterisation of beached pelagic sargassum towards remote estimation of biochemical and phenotypic properties. Sci Total Environ 2024; 914:169789. [PMID: 38181957 DOI: 10.1016/j.scitotenv.2023.169789] [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: 05/16/2023] [Revised: 09/06/2023] [Accepted: 12/28/2023] [Indexed: 01/07/2024]
Abstract
In recent years, pelagic sargassum (S. fluitans and S. natans - henceforth sargassum) macroalgal blooms have become more frequent and larger with higher biomass in the Tropical Atlantic region. They have environmental and socio-economic impacts, particularly on coastal ecosystems, tourism, fisheries and aquaculture industries, and on public health. Despite these challenges, sargassum biomass has the potential to offer commercial opportunities in the blue economy, although, it is reliant on key chemical and physical characteristics of the sargassum for specific use. In this study, we aim to utilise remotely sensed spectral profiles to determine species/morphotypes at different decomposition stages and their biochemical composition to support monitoring and valorisation of sargassum. For this, we undertook dedicated field campaigns in Barbados and Ghana to collect, for the first time, in situ spectral measurements between 350 and 2500 nm using a Spectra Vista Corp (SVC) HR-1024i field spectrometer of pelagic sargassum stranded biomass. The spectral measurements were complemented by uncrewed aerial system surveys using a DJI Phantom 4 drone and a DJI P4 multispectral instrument. Using the ground and airborne datasets this research developed an operational framework for remote detection of beached sargassum; and created spectral profiles of species/morphotypes and decomposition maps to infer biochemical composition. We were able to identify some key spectral regions, including a consistent absorption feature (920-1080 nm) found in all of the sargassum morphotype spectral profiles; we also observed distinction between fresh and recently beached sargassum particularly around 900-1000 nm. This work can support pelagic sargassum management and contribute to effective utilisation of the sargassum biomass to ultimately alleviate some of the socio-economic impacts associated with this emerging environmental challenge.
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Affiliation(s)
- Y A Fidai
- University of Southampton, School of Geography and Environmental sciences, Highfield Campus, Southampton SO17 1BJ, United Kingdom of Great Britain and Northern Ireland; Centre for Novel Agricultural Products, Department of Biology, University of York, Wentworth Way, York YO10 5DD, United Kingdom of Great Britain and Northern Ireland.
| | - C Botelho Machado
- Centre for Novel Agricultural Products, Department of Biology, University of York, Wentworth Way, York YO10 5DD, United Kingdom of Great Britain and Northern Ireland
| | - V Dominguez Almela
- University of Southampton, School of Geography and Environmental sciences, Highfield Campus, Southampton SO17 1BJ, United Kingdom of Great Britain and Northern Ireland
| | - H A Oxenford
- Centre for Resource Management and Environmental Studies (CERMES), University of West Indies, Cave Hill Campus, BB11000, Barbados
| | - P-N Jayson-Quashigah
- Institute for Environment and Sanitation Studies (IESS), University of Ghana, P. O. Box LG 209, Ghana
| | - T Tonon
- Centre for Novel Agricultural Products, Department of Biology, University of York, Wentworth Way, York YO10 5DD, United Kingdom of Great Britain and Northern Ireland
| | - J Dash
- University of Southampton, School of Geography and Environmental sciences, Highfield Campus, Southampton SO17 1BJ, United Kingdom of Great Britain and Northern Ireland
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Zhao A, Wang Q, Xu H, Xu G. Effects of continuous warming on homogeneity of periphytic protozoan fauna in marine ecosystems. Mar Pollut Bull 2024; 199:116017. [PMID: 38190786 DOI: 10.1016/j.marpolbul.2023.116017] [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: 09/02/2023] [Revised: 12/14/2023] [Accepted: 12/28/2023] [Indexed: 01/10/2024]
Abstract
As a powerful biological indicator, multivariate dispersion in a community is widely used to evaluate the biological evaluation of environmental heterogeneity. To investigate the effects of persistent warming on microbial fauna in marine environments, the periphytic protozoan communities were used as test organisms and incubated in five temperature-controlled circulation system at 22 (control), 25, 28, 31 and 34 °C, respectively. The results showed that (1) there was a clear variation in species occurrence, and the α-/γ-diversity measures decreased with the increase of temperatures; (2) the compositional pattern was significantly driven by the persistent warming compared to community pattern from species-abundance data; and (3) both traditional β-diversity and multivariate dispersion measures on species compositional matrix were significantly correlative with changes in the temperature. Therefore, it is suggested that continuous temperature fluctuations have a greater impact on homogeneity of species composition of protozoan communities than that of their community structure.
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Affiliation(s)
- Anqi Zhao
- Laboratory of Microbial Ecology, College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China
| | - Qiaoling Wang
- Laboratory of Microbial Ecology, College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China
| | - Henglong Xu
- Laboratory of Microbial Ecology, College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China.
| | - Guangjian Xu
- College of Environment and Safety Engineering, Qingdao University of Science & Technology, Qingdao 266042, China.
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6
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Rwawi C, Hernández-Carrasco I, Sudre F, Tedetti M, Rossi V. Transport patterns and hydrodynamic context of the MERITE-HIPPOCAMPE cruise: Implications for contaminants distribution and origin. Mar Pollut Bull 2024; 198:115743. [PMID: 38104384 DOI: 10.1016/j.marpolbul.2023.115743] [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: 03/30/2023] [Revised: 09/22/2023] [Accepted: 10/31/2023] [Indexed: 12/19/2023]
Abstract
This study aims at characterizing the hydrodynamic context and transport patterns that prevailed during the MERITE-HIPPOCAMPE cruise to assist in the interpretation of in-situ observations. The main physical attributes and structures (mesoscale eddies as well as fine-scale fronts and filaments) are analyzed based on various physical diagnostics. They were computed from satellite data and data-assimilative model outputs to describe ocean dynamics. The Northern and Algerian Currents were prominent features during the cruise while the western basin is divided by the vertically-tilted Balearic front. Temperature and salinity were used to distinguish different water masses at both surface and sub-surface. Sea-level anomalies, relative vorticity, and Okubo-Weiss parameter distributions have shown the presence of marked eddies around stations St10 and St11. Furthermore, Finite-Size Lyaponuv Exponents revealed that the former was rather located on a fine-scale filament near the edge of a cyclonic eddy while the latter was closer to the core of an anticyclone. Nearshore thermal fronts were detected with the Belkin and O'Reilly Algorithm (BOA), especially around stations St17 and St19. The potential coastal sources of contaminants were tested using Lagrangian Origin Maps (LOM), suggesting that stations St1, St2, St4, St11, and St15 were most likely influenced by coastal waters. Additionally, an atmospheric reanalysis combined with a Lagrangian dispersal model allowed for estimating wet deposition events of contaminants while tracking the fate of water masses where rainfall took place. Finally, we provide a set of explanatory quantitative and qualitative variables for future statistical analyses that aim at explaining the distribution of both chemical and biological samples collected during the cruise.
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Affiliation(s)
- Chaimaa Rwawi
- Aix Marseille Univ, University of Toulon, CNRS, IRD, MIO UM 110, Marseille 13288, France.
| | | | - Floriane Sudre
- Aix Marseille Univ, University of Toulon, CNRS, IRD, MIO UM 110, Marseille 13288, France
| | - Marc Tedetti
- Aix Marseille Univ, University of Toulon, CNRS, IRD, MIO UM 110, Marseille 13288, France
| | - Vincent Rossi
- Aix Marseille Univ, University of Toulon, CNRS, IRD, MIO UM 110, Marseille 13288, France.
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Alomar C, Rios-Fuster B, Cefalì ME, Fagiano V, Deudero S. Monitoring microplastics in coastal waters of a biosphere reserve: a case study in Menorca (Spain). Environ Sci Pollut Res Int 2024; 31:882-894. [PMID: 38032531 PMCID: PMC10789676 DOI: 10.1007/s11356-023-31061-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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Accepted: 11/11/2023] [Indexed: 12/01/2023]
Abstract
This study provides with evidence of the presence of sea surface microplastics in a UNESCO marine biosphere reserve: the island of Menorca in the north-western Mediterranean Sea. From a total of 90 samples, in 100% of the samples, microplastics were observed with a mean value of 0.18 ± 0.01 items/m2. According to data, no significant differences were observed for sampling period with very similar values between 2021 (0.17 ± 0.02 items/m2) and 2022 (0.18 ± 0.02 items/m2). However, significant differences were observed regarding sampling area (both site and locality) suggesting that sea surface plastics in the study area might be more dependent of the spatial scale rather than on the temporal scale. Fibre type microplastics predominated over fragments, films, pellets, and foams, but in the commercial Port de Maó, almost 50% of the identified items were foams which could be related to the transportation of packed goods to this port. Results from the model applied to study the relation between waste management indicators and microplastic abundance indicate that when considering all marine litter categories, the explanatory variables are plastic waste generated by residents population (tonnes/year/km2) and waste collection rate (%), whereas if only plastics are considered, the indicator regarding waste per capita (kg/hab/year) is also included. Data in this study is obtained through a harmonized protocol which can be used to define baseline and threshold values to evaluate good environmental status regarding descriptor 10 of the Marine Strategy Framework Directive.
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Affiliation(s)
- Carme Alomar
- Instituto Español de Oceanografía, Centro Oceanográfico de Baleares (IEO, CSIC), Muelle de Poniente S/N, 07015, Palma, Mallorca, Spain.
| | - Beatriz Rios-Fuster
- Instituto Español de Oceanografía, Centro Oceanográfico de Baleares (IEO, CSIC), Muelle de Poniente S/N, 07015, Palma, Mallorca, Spain
| | - Maria Elena Cefalì
- Estació d'Investigació Jaume Ferrer, La Mola, Centro Oceanogràfico de Baleares, IEO-CSIC, PO Box 502, 07701, Mao, Menorca, Spain
| | - Valentina Fagiano
- Instituto Español de Oceanografía, Centro Oceanográfico de Baleares (IEO, CSIC), Muelle de Poniente S/N, 07015, Palma, Mallorca, Spain
| | - Salud Deudero
- Instituto Español de Oceanografía, Centro Oceanográfico de Baleares (IEO, CSIC), Muelle de Poniente S/N, 07015, Palma, Mallorca, Spain
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Hasselman DJ, Hemery LG, Copping AE, Fulton EA, Fox J, Gill AB, Polagye B. 'Scaling up' our understanding of environmental effects of marine renewable energy development from single devices to large-scale commercial arrays. Sci Total Environ 2023; 904:166801. [PMID: 37669708 DOI: 10.1016/j.scitotenv.2023.166801] [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] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 08/08/2023] [Accepted: 09/02/2023] [Indexed: 09/07/2023]
Abstract
Global expansion of marine renewable energy (MRE) technologies is needed to help address the impacts of climate change, to ensure a sustainable transition from carbon-based energy sources, and to meet national energy security needs using locally-generated electricity. However, the MRE sector has yet to realize its full potential due to the limited scale of device deployments (i.e., single devices or small demonstration-scale arrays), and is hampered by various factors including uncertainty about environmental effects and how the magnitude of these effects scale with an increasing number of devices. This paper seeks to expand our understanding of the environmental effects of MRE arrays using existing frameworks and through the adaptation and application of cumulative environmental effects terminology to key stressor-receptor interactions. This approach facilitates the development of generalized concepts for the scaling of environmental effects for key stressor-receptor interactions, identifying high priority risks and revealing knowledge gaps that require investigation to aid expansion of the MRE sector. Results suggest that effects of collision risk for an array may be additive, antagonistic, or synergistic, but are likely dependent on array location and configuration. Effects of underwater noise are likely additive as additional devices are deployed in an array, while the effects of electromagnetic fields may be dominant, additive, or antagonistic. Changes to benthic habitats are likely additive, but may be dependent on array configuration and could be antagonistic or synergistic at the ecosystem scale. Effects of displacement, entanglement, and changes to oceanographic systems for arrays are less certain because little information is available about effects at the current scale of MRE development.
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Affiliation(s)
| | - Lenaïg G Hemery
- Pacific Northwest National Laboratory, Coastal Sciences Division, Sequim, WA, USA
| | - Andrea E Copping
- Pacific Northwest National Laboratory, Coastal Sciences Division, Seattle, WA, USA
| | - Elizabeth A Fulton
- CSIRO Environment, Hobart, TAS, Australia; Centre for Marine Socioecology, University Tasmania, Hobart, TAS, Australia
| | | | - Andrew B Gill
- The Centre for Environment, Fisheries and Aquaculture Science, Lowestoft, Suffolk, UK
| | - Brian Polagye
- Department of Mechanical Engineering, University of Washington, Seattle, WA, USA
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Hande V, Orita M, Matsunaga H, Kashiwazaki Y, Xiao X, Schneider T, Lochard J, Taira Y, Takamura N. Thoughts, perceptions and concerns of coastal residents regarding the discharge of tritium-containing treated water from the Fukushima Daiichi Nuclear Power Plant into the Pacific Ocean. BMC Public Health 2023; 23:2436. [PMID: 38057746 PMCID: PMC10701930 DOI: 10.1186/s12889-023-17349-1] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Accepted: 11/27/2023] [Indexed: 12/08/2023] Open
Abstract
BACKGROUND As a part of the decontamination process after the Fukushima Daiichi Nuclear Power Plant accident of 2011, 1.32 million tonnes of tritium-containing water will be discharged from the power plant into the Pacific Ocean. Although radiobiological impacts of the treated water discharge on the public and the environment were reported to be minimal, Tomioka and Okuma locals expressed unease regarding the long-term recovery of their towns, which are economically dependent on the agricultural, fishery, and tourism sectors. This study presents thoughts, perceptions and concerns of Tomioka and Okuma locals regarding the discharge of FDNPP-treated water containing tritium into the Pacific Ocean to facilitate a more inclusive decision-making process that respects local stakeholder interests. METHODS Conducted from November to December 2022, surveys were mailed to current residents and evacuees aged 20 years or older registered with the town councils. RESULTS Out of 1268 included responses, 71.5% were from those > 65 years. 65.6% were unemployed, 76.2% routinely visited hospitals, and 85.5% did not live with children. 61% did not want to return to Okuma/Tomioka. Anxiety about radiation-related health effects (38.7%), consuming food produced in Okuma/Tomioka (48.0%) and genetic effects (45.3%) were low. >50% reported poor physical and mental health. 40% were acceptive, 31.4% were unsure, and 29.7% objected to the discharge plans. Multinomial regression analysis revealed that, compared to acceptive responders, those who objected were more likely to be female, unemployed, and have anxiety about radiation-related genetic effects and poor mental health. Unsure responders were similarly more likely to be female, anxious about radiation-related genetic effects and have poor mental health. CONCLUSION The poor mental health of the locals, connected to high levels of risk perception and anxiety about the loss of economic opportunities related to the discharge plans, must be addressed. The 30-year discharge process could handicap local industries and hamper post-disaster socioeconomic recovery due to the circulation of false rumours among consumers. These results highlight the need to actively involve residents in the towns' recovery process to address local concerns. The focus should be on the judicious combination of transparent science with the human aspect of recovery and narratives highlighting dialogues between local stakeholders and experts to enable the locals and the general public to make informed decisions about their protection and future.
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Affiliation(s)
- Varsha Hande
- Department of Global Health, Medicine and Welfare, Atomic Bomb Disease Institute, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, 852-8523, Japan
| | - Makiko Orita
- Department of Global Health, Medicine and Welfare, Atomic Bomb Disease Institute, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, 852-8523, Japan.
| | - Hitomi Matsunaga
- Department of Global Health, Medicine and Welfare, Atomic Bomb Disease Institute, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, 852-8523, Japan
| | - Yuya Kashiwazaki
- Department of Global Health, Medicine and Welfare, Atomic Bomb Disease Institute, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, 852-8523, Japan
| | - Xu Xiao
- Department of Global Health, Medicine and Welfare, Atomic Bomb Disease Institute, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, 852-8523, Japan
| | - Thierry Schneider
- Nuclear Protection Evaluation Centre (CEPN), Fontenay-aux-Roses, France
| | - Jacques Lochard
- Department of Health Risk Control, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki, Japan
| | - Yasuyuki Taira
- Department of Global Health, Medicine and Welfare, Atomic Bomb Disease Institute, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, 852-8523, Japan
| | - Noboru Takamura
- Department of Global Health, Medicine and Welfare, Atomic Bomb Disease Institute, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, 852-8523, Japan
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Souza MCS, Massei K, Vianna PCG, Santos CAG, Mishra M, Silva RMD. Assessment of macrobenthos diversity and a zoning proposal for Seixas coral reefs (northeastern Brazil). Mar Pollut Bull 2023; 195:115443. [PMID: 37659381 DOI: 10.1016/j.marpolbul.2023.115443] [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: 06/13/2023] [Revised: 08/18/2023] [Accepted: 08/20/2023] [Indexed: 09/04/2023]
Abstract
Coral reefs worldwide are under severe threat due to their inherent fragility and urgent need for conservation. The escalating tourism in coral reefs significantly impacts the marine ecosystem's biodiversity and conservation. This study analyzed the diversity and conservation status of macrobenthos in the Seixas coral reef, located in northeastern Brazil, and proposed a zoning plan. We employed monitoring protocols adapted from the Reef Check Program, the Rapid Assessment Protocol for Atlantic and Gulf Reefs, and the Protocol for Monitoring Coastal Benthic Habitats. Species identification was carried out by analyzing 25 transects, each divided into 1 m2 grids, with photos recorded for each grid, totaling 625 photos. Margalef, Shannon-Weaver, Simpson, and Pielou indices were used to analyze species distribution and diversity. The results indicated Dictyotaceae, Sargassaceae, and Corallinaceae as prevalent families. This research offers decision-makers a snapshot of species distribution in the Seixas coral reefs, providing a non-destructive, efficient methodology for assessing environmental impacts on coastal coral reefs.
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Affiliation(s)
- Maria Cecilia Silva Souza
- Graduate Program in Geography, Federal University of Paraíba, 58051-900 João Pessoa, Paraíba, Brazil
| | - Karina Massei
- Postdoctoral fellow in Ecology and Environmental Monitoring (PPGEMA), Federal University of Paraíba, 58297-000 Rio Tinto, Paraíba, Brazil.
| | | | - Celso Augusto Guimarães Santos
- Department of Civil and Environmental Engineering, Federal University of Paraíba, 58051-900 João Pessoa, Paraíba, Brazil.
| | - Manoranjan Mishra
- Department of Geography, Fakir Mohan University, VyasaVihar, Nuapadhi, 756089 Balasore, Odisha, India
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11
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Rangel-Buitrago N, Rizzo A, Neal WJ, Mastronuzzi G. Sediment pollution in coastal and marine environments. Mar Pollut Bull 2023; 193:115199. [PMID: 37356130 DOI: 10.1016/j.marpolbul.2023.115199] [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] [Indexed: 06/27/2023]
Abstract
Sediment pollution in coastal and marine environments has emerged as a pressing concern due to its far-reaching ecological, environmental, and human health impacts. This Special Issue of the Marine Pollution Bulletin assembles a diverse range of studies investigating sediment pollution, its causes, and potential mitigation strategies, covering topics such as geophysical assessment of anthropogenic activities, biological responses to pollution, contamination, and ecological risk assessments, and microplastics in coastal sediments. The findings emphasize the need for effective monitoring, management, and interdisciplinary research to address the multifaceted challenges posed by sediment pollution. As the global population grows and human activities expand, it is essential to prioritize sustainable practices and policies to minimize anthropogenic impacts on coastal and marine ecosystems. By advancing collective knowledge and sharing best practices, we can work towards ensuring a healthier and more resilient future for these crucial ecosystems and the lives they support.
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Affiliation(s)
- Nelson Rangel-Buitrago
- Programa de Física, Facultad de Ciencias Básicas, Universidad del Atlántico, Km 7 Antigua vía Puerto Colombia, Barranquilla, Atlántico, Colombia.
| | - Angela Rizzo
- Dipartimento di Scienze della Terra e Geoambientali, Università degli Studi di Bari Aldo Moro, Via Orabona 4, Bari, Italy
| | - William J Neal
- Department of Geology, Grand Valley State University, Padnos Hall of Science 118, Allendale, MI, USA
| | - Giuseppe Mastronuzzi
- Dipartimento di Scienze della Terra e Geoambientali, Università degli Studi di Bari Aldo Moro, Via Orabona 4, Bari, Italy
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12
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Kazmi SSUH, Saqib HSA, Warren A, Wang Z, Pastorino P, Barcelò D, Goraya MU, Liu W, Xu H. Antibiotic nitrofurazone drives the functional dynamics of periphytic protozoan fauna in marine environments. Sci Total Environ 2023; 874:162405. [PMID: 36858212 DOI: 10.1016/j.scitotenv.2023.162405] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [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: 12/31/2022] [Revised: 02/07/2023] [Accepted: 02/18/2023] [Indexed: 03/02/2023]
Abstract
The use of functional traits of a community as a method to measure its functional dynamics in response to environmental change has gained attention because trait-based approaches offer systematic opportunities to understand the interactions between species diversity and ecosystem function. However, the relationship between functional traits of periphytic protozoa and contamination of aquatic habitats with antibiotics is poorly understood. In this study, we investigated the influence of the antibiotic nitrofurazone on functional traits of marine periphytic protozoan fauna. For this purpose, the protozoan assemblages were collected from coastal waters of the Yellow Sea at Qingdao, northern China, during four seasons of a one-year cycle using glass microscope slides as artificial substrates. The test protozoan communities were then exposed to various treatments of nitrofurazone in laboratory bioassay experiments. Our results demonstrated that the modalities of the functional traits of protozoan communities were generally driven by nitrofurazone toxicity. Briefly, R-mode linked to Q-mode (RLQ) and fourth-corner analyses revealed strong positive correlations between functional traits and nitrofurazone treatments. Trait syndromes in terms of body length, width, weight, height, and size to volume ratios were significantly influenced by nitrofurazone exposure. In particular, small and medium body size species of different feeding types, i.e., algivores, bacterivores, raptors or non-selectives, were more sensitive than other protozoan species to higher concentrations of nitrofurazone. Our findings demonstrate that antibiotic toxicity is likely to affect periphytic protozoan community function, shape the functional processes, and induce toxic responses in the community. The findings of this study suggest that periphytic protozoan communities and their functional traits are suitable bioindicators for evaluating the ecotoxicity of nitrofurazone in marine environments.
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Affiliation(s)
- Syed Shabi Ul Hassan Kazmi
- College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China; Guangdong Provincial Key Laboratory of Marine Disaster Prediction and Prevention and Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou 515063, China
| | - Hafiz Sohaib Ahmed Saqib
- Guangdong Provincial Key Laboratory of Marine Disaster Prediction and Prevention and Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou 515063, China
| | - Alan Warren
- Department of Life Sciences, Natural History Museum, London SW7 5BD, UK
| | - Zhen Wang
- Guangdong Provincial Key Laboratory of Marine Disaster Prediction and Prevention and Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou 515063, China.
| | - Paolo Pastorino
- Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Valle d'Aosta, 10154 Torino, Italy
| | - Damià Barcelò
- Catalan Institute for Water Research (ICRA-CERCA), 17003 Girona, Spain; Institute of Environmental Assessment and Water Research (IDAEA-CSIC), 08034 Barcelona, Spain
| | - Mohsan Ullah Goraya
- Department of Microbiology and Immunology, Shantou University Medical College, Shantou 515041, China
| | - Wenhua Liu
- Guangdong Provincial Key Laboratory of Marine Disaster Prediction and Prevention and Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou 515063, China
| | - Henglong Xu
- College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China.
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13
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Rangel-Buitrago N, Rizzo A, Neal WJ, Mastronuzzi G. Sediment pollution in coastal and marine environments. Mar Pollut Bull 2023; 192:115023. [PMID: 37207393 DOI: 10.1016/j.marpolbul.2023.115023] [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] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Revised: 04/29/2023] [Accepted: 05/03/2023] [Indexed: 05/21/2023]
Abstract
Sediment pollution in coastal and marine environments has emerged as a pressing concern due to its far-reaching ecological, environmental, and human health impacts. This Special Issue of the Marine Pollution Bulletin assembles a diverse range of studies investigating sediment pollution, its causes, and potential mitigation strategies, covering topics such as geophysical assessment of anthropogenic activities, biological responses to pollution, contamination, and ecological risk assessments, and microplastics in coastal sediments. The findings emphasize the need for effective monitoring, management, and interdisciplinary research to address the multifaceted challenges posed by sediment pollution. As the global population grows and human activities expand, it is essential to prioritize sustainable practices and policies to minimize anthropogenic impacts on coastal and marine ecosystems. By advancing collective knowledge and sharing best practices, we can work towards ensuring a healthier and more resilient future for these crucial ecosystems and the lives they support.
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Affiliation(s)
- Nelson Rangel-Buitrago
- Programa de Física, Facultad de Ciencias Básicas, Universidad del Atlántico, Km 7 Antigua vía Puerto Colombia, Barranquilla, Atlántico, Colombia.
| | - Angela Rizzo
- Dipartimento di Scienze della Terra e Geoambientali, Università degli Studi di Bari Aldo Moro, Via Orabona 4, Bari, Italy
| | - William J Neal
- Department of Geology, Grand Valley State University, Padnos Hall of Science, 118 Allendale, MI, USA
| | - Giuseppe Mastronuzzi
- Dipartimento di Scienze della Terra e Geoambientali, Università degli Studi di Bari Aldo Moro, Via Orabona 4, Bari, Italy
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14
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Wang L, Liang Z, Guo Z, Guo T, Song M, Wang Y, Zheng W, Zhang W, Jiang Z. Distribution of nitrogen (N) and phosphorus (P) in seasonal low-oxygen marine ranching in northern Yellow Sea, China. Environ Sci Pollut Res Int 2023; 30:64179-64190. [PMID: 37061637 DOI: 10.1007/s11356-023-26932-3] [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] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Accepted: 04/06/2023] [Indexed: 05/11/2023]
Abstract
Seasonal low-oxygen in marine ranching in the northern Yellow Sea has been one of the major environmental problems in coastal waters in recent years. Nitrogen (N) and phosphorus (P) are important nutrients, which are susceptible to the concentration of dissolved oxygen (DO). This article studied the effects of low-oxygen on nutrients represented by N and P fractions in marine ranching in the northern Yellow Sea. The results showed that there were significant layer differences in temperature and salinity during the low-oxygen period. In the seawater, the nutrient distribution in the death disaster zone of sea cucumbers and the non-disaster zone was similar, and DO had a strong positive correlation with dissolved inorganic nitrogen (DIN). In the sediment, significant regional differences existed in nutrient concentration, and the concentration of total phosphorus (TP) decreased significantly with the increase in DO content. The results showed that the sources and sinks of nitrogen and phosphorus nutrients were inconsistent in this zone, and migration and transformation of the existing form of nitrogen with the seasonal changes in the water environment was a main factor for N distribution. This study extended the understanding of the effects of seasonal low-oxygen on N and P.
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Affiliation(s)
- Lu Wang
- Marine College, Shandong University, Weihai, 264209, Shandong, China
- Key Laboratory of Modern Marine Ranching Technology of Weihai, Weihai, 264209, Shandong, China
| | - Zhenlin Liang
- Marine College, Shandong University, Weihai, 264209, Shandong, China
- Key Laboratory of Modern Marine Ranching Technology of Weihai, Weihai, 264209, Shandong, China
| | - Zhansheng Guo
- Marine College, Shandong University, Weihai, 264209, Shandong, China
- Key Laboratory of Modern Marine Ranching Technology of Weihai, Weihai, 264209, Shandong, China
| | - Tingting Guo
- Marine College, Shandong University, Weihai, 264209, Shandong, China
- Key Laboratory of Modern Marine Ranching Technology of Weihai, Weihai, 264209, Shandong, China
| | - Minpeng Song
- Marine College, Shandong University, Weihai, 264209, Shandong, China
- Key Laboratory of Modern Marine Ranching Technology of Weihai, Weihai, 264209, Shandong, China
| | - Yuxin Wang
- Marine College, Shandong University, Weihai, 264209, Shandong, China
- Key Laboratory of Modern Marine Ranching Technology of Weihai, Weihai, 264209, Shandong, China
| | - Wenmeng Zheng
- Marine College, Shandong University, Weihai, 264209, Shandong, China
- Key Laboratory of Modern Marine Ranching Technology of Weihai, Weihai, 264209, Shandong, China
| | - Wenyu Zhang
- Marine College, Shandong University, Weihai, 264209, Shandong, China
- Key Laboratory of Modern Marine Ranching Technology of Weihai, Weihai, 264209, Shandong, China
| | - Zhaoyang Jiang
- Marine College, Shandong University, Weihai, 264209, Shandong, China.
- Key Laboratory of Modern Marine Ranching Technology of Weihai, Weihai, 264209, Shandong, China.
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15
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Monteiro M, de Castro SLP, Marques SC, Freitas R, Azeiteiro UM. An emergent treat: Marine heatwaves - Implications for marine decapod crustacean species - An overview. Environ Res 2023; 229:116004. [PMID: 37116673 DOI: 10.1016/j.envres.2023.116004] [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] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 04/21/2023] [Accepted: 04/25/2023] [Indexed: 05/05/2023]
Abstract
Anthropogenic-mediated climate change severely affects the oceans. The most common definition of a Marine heatwave (MHW) considers that water temperatures rise above the 90th percentile threshold values, based on the last 30 years' average of temperature records for a particular location, and remains this high for five or more days. The current review addresses the evolution of definitions used, as well as the current understanding of the driving mechanisms of MHWs. The collected information shows that the study of MHW is recent and there is a growing interest among the scientific community on this topic, motivated largely by the impacts that pose to marine ecosystems. Further, a more in-depth analysis was carried out, addressing the impacts of MHW events on marine decapod crustacean species. The investigation of such impacts has been carried out using three main methodological approaches: the analysis of in situ records, observed in 33 studies; simulating MHW events through mesocosm experiments, found in 6 studies; and using computational predictive models, detected in 1 study. From the literature available it has been demonstrated that consequences are serious for these species, from altered expansion ranges to alterations of assemblages' abundances. Still, studies addressing the impacts of these extreme events on the decapod communities are scarce, often only limited to adult life forms of commercially relevant species, neglecting non-commercial ones and meroplanktonic life stages. Despite the severe impacts on the health of ecosystems, repercussions on socioeconomic human activities, like fisheries and aquaculture, are also a reality. Overall, this review aims to raise scientific and public awareness of these marine events, which are projected to increase in intensity and frequency in the coming decades. Therefore, there is a growing need to better understand and predict the mechanisms responsible for these extreme events and the impacts on key species, like decapod crustaceans.
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Affiliation(s)
- Marta Monteiro
- Centre for Environmental and Marine Studies (CESAM) and Department of Biology, University of Aveiro, Aveiro, Portugal.
| | | | - Sónia Cotrim Marques
- MARE- Marine and Environmental Sciences Centre/ARNET - Aquatic Research Network, School of Tourism and Maritime Technology, Polytechnic of Leiria, Portugal
| | - Rosa Freitas
- Centre for Environmental and Marine Studies (CESAM) and Department of Biology, University of Aveiro, Aveiro, Portugal
| | - Ulisses M Azeiteiro
- Centre for Environmental and Marine Studies (CESAM) and Department of Biology, University of Aveiro, Aveiro, Portugal
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16
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Zhong X, Yu S, Xu H. Colonization dynamics in body-size spectrum of protozoan periphytons for marine bioassessment using two modified sampling systems. Mar Pollut Bull 2023; 186:114382. [PMID: 36442312 DOI: 10.1016/j.marpolbul.2022.114382] [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: 09/07/2022] [Revised: 11/12/2022] [Accepted: 11/15/2022] [Indexed: 06/16/2023]
Abstract
The body-size spectrum of microperiphytons has been proved to be a powerful tool for bioassessment. To explore colonization dynamics in body-size spectrum of periphytic protozoa in two modified sampling systems of both glass slide (mGS) and polyurethane foam unit (mPFU), a 28-day colonization survey was conducted in coastal waters of the Yellow Sea, China. A total of 7 body-size ranks were identified from 62 species, with 7 ranks (60 species) in the mGS and 6 ranks (37 species) in the mPFU system. The stable pattern with similar body-size spectra was found earlier in the mGS system than mPFU system during the colonization period. Both the trajectory and bootstrapped average analyses revealed that the colonization dynamics were significantly different in the body-size spectrum between the two methods. Based on our data, it suggests that the mGS system might be a better choice than the mPFU system for bioassessment in marine ecosystems.
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Affiliation(s)
- Xiaoxiao Zhong
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, Shandong, China
| | - Shitao Yu
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, Shandong, China.
| | - Henglong Xu
- Laboratory of Microbial Ecology, Ocean University of China, Qingdao 266003, China
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17
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Xu M, Zhang Y, Cao S, Li Y, Wang J, Dong H, Wang Y. A simulated toxic assessment of cesium on the blue mussel Mytilus edulis provides evidence for the potential impacts of nuclear wastewater discharge on marine ecosystems. Environ Pollut 2023; 316:120458. [PMID: 36270569 DOI: 10.1016/j.envpol.2022.120458] [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: 05/30/2022] [Revised: 09/14/2022] [Accepted: 10/14/2022] [Indexed: 06/16/2023]
Abstract
The toxic effects of cesium (Cs) on the blue mussel Mytilus edulis were experimentally investigated to assess the potential environmental consequences of the discharge of nuclear wastewater containing radionuclides. A simulated experimental system of stable cesium (133Cs) was set up to mimic the impacts of radiocesium, and its heavy metal property was emphasized. The mussels were exposed to a concentration gradient of 133Cs for 21 days, followed by another 21-day elimination period. 133Cs exposure resulted in effective bioaccumulation with distinct features of concentration dependence and tissue specificity, and hemolymph, gills and digestive glands were recognized as the most target tissues for accumulation. Although the elimination period was helpful in reducing the accumulated 133Cs, the remaining concentrations of tissues were still significant. 133Cs exposure presented little effect on growth status at the individual level but had distinct interference on feeding and metabolism indicated by the oxygen consumption rate, ammonia-N excretion rate and O:N ratio, simultaneously with the impairment of digestive glands. Regarding hemocytes in the hemolymph, the cell mortality increment, micronucleus promotion, lysosomal membrane stability disruption and phagocytic ability inhibition suggested that the immune function was injured. The cooccurrence of reactive oxygen species overproduction had a close relationship with the observed damages and was thought to be the possible explanation for the immune toxicity. The assay based integrated biomarker response (IBR) presented a good linear relation with the exposure concentrations, suggesting that it was a promising method for assessing the risk of 133Cs. The results indicated that 133Cs exposure damaged M. edulis at the tissue and cell before at the macroscopic individual, evidencing the potentially detrimental impacts of nuclear wastewater discharge on marine ecosystems.
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Affiliation(s)
- Mengxue Xu
- Department of Marine Ecology, College of Marine Life Sciences, Ocean University of China, Qingdao, 266003, China.
| | - Yaya Zhang
- Department of Marine Ecology, College of Marine Life Sciences, Ocean University of China, Qingdao, 266003, China.
| | - Sai Cao
- Department of Marine Ecology, College of Marine Life Sciences, Ocean University of China, Qingdao, 266003, China.
| | - Yuanyuan Li
- Department of Marine Ecology, College of Marine Life Sciences, Ocean University of China, Qingdao, 266003, China.
| | - Jiayi Wang
- Department of Marine Ecology, College of Marine Life Sciences, Ocean University of China, Qingdao, 266003, China.
| | - Huihui Dong
- Department of Marine Ecology, College of Marine Life Sciences, Ocean University of China, Qingdao, 266003, China.
| | - You Wang
- Department of Marine Ecology, College of Marine Life Sciences, Ocean University of China, Qingdao, 266003, China; Laboratory for Marine Ecology and Environmental Science, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao, 266071, China.
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18
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Li MY, Kang YH, Sun WC, Hao ZP, Elsheikha HM, Cong W. Terrestrial runoff influences the transport and contamination levels of Toxoplasma gondii in marine organisms. Sci Total Environ 2022; 851:158168. [PMID: 35988599 DOI: 10.1016/j.scitotenv.2022.158168] [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: 05/18/2022] [Revised: 07/14/2022] [Accepted: 08/16/2022] [Indexed: 06/15/2023]
Abstract
There is a growing concern regarding the potential adverse impact of Toxoplasma gondii contamination of the marine environment on marine wildlife and public health. Terrestrial runoff is a significant route for dissemination of T. gondii oocysts from land to sea. Yet, the influence of terrestrial runoff on T. gondii prevalence in marine animals in China is largely unknown. To address this concern, we examined the presence of T. gondii in marine oysters Crassostrea spp., rockfish Sebastes schlegelii (S. schlegelii), fat greenling fish Hexagrammos otakii (H. otakii), and Asian paddle crab Charybdis japonica (C. japonica) using a PCR assay targeting T. gondii B1 gene. A total of 1920 samples were randomly collected, in Jan-Dec 2020, from terrestrial runoff areas (TRA, TRB, and TRC) and non-terrestrial runoff area (Grape bay) in Weihai, China. T. gondii prevalence in TRB and TRC was 6.04 % and 5.83 %, respectively, which was higher than 2.29 % detected in the non-terrestrial runoff area. The highest prevalence was detected in Crassostrea spp., and a correlation was observed between T. gondii prevalence and weight of Crassostrea spp. The temperature, but not precipitation, significantly correlated with T. gondii prevalence. Understanding the fate of T. gondii delivered to oceans by terrestrial runoff is critical for predicting future disease risks for marine wildlife and humans.
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Affiliation(s)
- Man-Yao Li
- Marine College, Shandong University, Weihai, Shandong 264209, PR China
| | - Yuan-Huan Kang
- Marine College, Shandong University, Weihai, Shandong 264209, PR China
| | - Wen-Chao Sun
- Zhejiang Provincial Key Laboratory for Water Environment and Marine Biological Resources Protection, Wenzhou University, Wenzhou 32503, PR China
| | - Zhi-Peng Hao
- Marine College, Shandong University, Weihai, Shandong 264209, PR China
| | - Hany M Elsheikha
- Faculty of Medicine and Health Sciences, School of Veterinary Medicine and Science, University of Nottingham, Sutton Bonington Campus, Loughborough LE12 5RD, United Kingdom.
| | - Wei Cong
- Marine College, Shandong University, Weihai, Shandong 264209, PR China.
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19
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Ngoubeyou PSK, Wolkersdorfer C, Ndibewu PP, Augustyn W. Toxicity of polychlorinated biphenyls in aquatic environments - A review. Aquat Toxicol 2022; 251:106284. [PMID: 36087490 DOI: 10.1016/j.aquatox.2022.106284] [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: 05/06/2022] [Revised: 08/25/2022] [Accepted: 08/27/2022] [Indexed: 06/15/2023]
Abstract
The assessment of polychlorinated biphenyls (PCBs) and their congeners resulting from the pollution of all environmental media is inherently related to its persistence and ubiquitous nature. In principle, determination of this class of contaminants are limited to the determination of their concentrations in the various environmental matrices. For solving many problems in this context, knowledge of the emission sources of PCBs, transport pathways, and sites of contamination and biomagnification is of great benefit to scientists and researchers, as well as many regulatory organizations. By far the largest amounts of PCBs, regardless of their discharged points, end up in the soil, sediment and finally in different aquatic environments. By reviewing relevant published materials, the source of origin of PCBs in the environment particularly from different pollution point sources, it is possible to obtain useful information on the nature of different materials that are sources of PCBs, or their concentrations and their toxicity or health effects and how they can be removed from contaminated media. This review focuses on the sources of PCBs in aquatic environments and critically reviews the toxicity of PCBs in aquatic animals and plants. The review also assesses the toxicity equivalency factors (TEFs) of PCBs providing valuable knowledge to other scientists and researchers that enables regulatory laws to be formulated based on selective determination of concentrations regarding their maximum permissible limits (MPLs) allowed. This review also supplies a pool of valuable information useful for designing decontamination technologies for PCBs in media like soil, sediment, and wastewaters.
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Affiliation(s)
| | - Christian Wolkersdorfer
- Tshwane University of Technology, SARChI Chair for Mine Water Treatment, Department of Environmental, Water and Earth Sciences, Private Bag X680, Pretoria, 0001, South Africa
| | - Peter Papoh Ndibewu
- Tshwane University of Technology, Department of Chemistry, Pretoria 0001, South Africa.
| | - Wilma Augustyn
- Tshwane University of Technology, Department of Chemistry, Pretoria 0001, South Africa
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20
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Omeyer LCM, Duncan EM, Aiemsomboon K, Beaumont N, Bureekul S, Cao B, Carrasco LR, Chavanich S, Clark JR, Cordova MR, Couceiro F, Cragg SM, Dickson N, Failler P, Ferraro G, Fletcher S, Fong J, Ford AT, Gutierrez T, Shahul Hamid F, Hiddink JG, Hoa PT, Holland SI, Jones L, Jones NH, Koldewey H, Lauro FM, Lee C, Lewis M, Marks D, Matallana-Surget S, Mayorga-Adame CG, McGeehan J, Messer LF, Michie L, Miller MA, Mohamad ZF, Nor NHM, Müller M, Neill SP, Nelms SE, Onda DFL, Ong JJL, Pariatamby A, Phang SC, Quilliam R, Robins PE, Salta M, Sartimbul A, Shakuto S, Skov MW, Taboada EB, Todd PA, Toh TC, Valiyaveettil S, Viyakarn V, Wonnapinij P, Wood LE, Yong CLX, Godley BJ. Priorities to inform research on marine plastic pollution in Southeast Asia. Sci Total Environ 2022; 841:156704. [PMID: 35718174 DOI: 10.1016/j.scitotenv.2022.156704] [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: 04/13/2022] [Revised: 06/07/2022] [Accepted: 06/10/2022] [Indexed: 06/15/2023]
Abstract
Southeast Asia is considered to have some of the highest levels of marine plastic pollution in the world. It is therefore vitally important to increase our understanding of the impacts and risks of plastic pollution to marine ecosystems and the essential services they provide to support the development of mitigation measures in the region. An interdisciplinary, international network of experts (Australia, Indonesia, Ireland, Malaysia, the Philippines, Singapore, Thailand, the United Kingdom, and Vietnam) set a research agenda for marine plastic pollution in the region, synthesizing current knowledge and highlighting areas for further research in Southeast Asia. Using an inductive method, 21 research questions emerged under five non-predefined key themes, grouping them according to which: (1) characterise marine plastic pollution in Southeast Asia; (2) explore its movement and fate across the region; (3) describe the biological and chemical modifications marine plastic pollution undergoes; (4) detail its environmental, social, and economic impacts; and, finally, (5) target regional policies and possible solutions. Questions relating to these research priority areas highlight the importance of better understanding the fate of marine plastic pollution, its degradation, and the impacts and risks it can generate across communities and different ecosystem services. Knowledge of these aspects will help support actions which currently suffer from transboundary problems, lack of responsibility, and inaction to tackle the issue from its point source in the region. Being profoundly affected by marine plastic pollution, Southeast Asian countries provide an opportunity to test the effectiveness of innovative and socially inclusive changes in marine plastic governance, as well as both high and low-tech solutions, which can offer insights and actionable models to the rest of the world.
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Affiliation(s)
- Lucy C M Omeyer
- Centre for Ecology and Conservation, University of Exeter, Penryn Campus, Penryn, Cornwall TR10 9EZ, United Kingdom.
| | - Emily M Duncan
- Centre for Ecology and Conservation, University of Exeter, Penryn Campus, Penryn, Cornwall TR10 9EZ, United Kingdom; Institute of Marine Sciences - Okeanos, University of the Azores, Rua Professor Doutor Frederico Machado 4, 9901-862 Horta, Portugal.
| | - Kornrawee Aiemsomboon
- Department of Marine Science, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
| | - Nicola Beaumont
- Plymouth Marine Laboratory, Prospect Place, The Hoe, Plymouth, Devon PL1 3DH, United Kingdom
| | - Sujaree Bureekul
- Department of Marine Science, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
| | - Bin Cao
- Singapore Centre for Environmental Life Sciences Engineering, Nanyang Technological University, 637551, Singapore; School of Civil and Environmental Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore
| | - Luis R Carrasco
- Department of Biological Sciences, National University of Singapore, 14 Science Drive 4, 117543, Singapore
| | - Suchana Chavanich
- Department of Marine Science, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand; Aquatic Resources Research Institute Chulalongkorn University, Bangkok 10330, Thailand
| | - James R Clark
- Plymouth Marine Laboratory, Prospect Place, The Hoe, Plymouth, Devon PL1 3DH, United Kingdom
| | - Muhammad R Cordova
- Research Centre for Oceanography, Indonesian Institute of Sciences (LIPI), Jalan Pasir Putih 1, Ancol Timur, Jakarta 14430, Indonesia; Research Centre for Oceanography, National Research and Innovation Agency (BRIN), Jalan Pasir Putih 1, Ancol Timur, Jakarta 14430, Indonesia
| | - Fay Couceiro
- School of Civil Engineering and Surveying, Faculty of Technology, University of Portsmouth, Portsmouth, Hampshire PO1 3AH, United Kingdom
| | - Simon M Cragg
- Institute of Marine Sciences, University of Portsmouth, Portsmouth, Hampshire PO4 9LY, United Kingdom; Centre for Enzyme Innovation, School of Biological Sciences, University of Portsmouth, Portsmouth, Hampshire PO1 2DY, United Kingdom
| | - Neil Dickson
- School of Ocean Sciences, Bangor University, Menai Bridge, Anglesey LL59 5AB, United Kingdom
| | - Pierre Failler
- Centre for Blue Governance, Department of Economics and Finance, University of Portsmouth, Portsmouth, Hampshire PO1 3DE, United Kingdom
| | - Gianluca Ferraro
- Centre for Blue Governance, Department of Economics and Finance, University of Portsmouth, Portsmouth, Hampshire PO1 3DE, United Kingdom
| | - Stephen Fletcher
- School of the Environment, Geography and Geosciences, University of Portsmouth, Portsmouth, Hampshire PO1 3DE, United Kingdom; UN Environment World Conservation Monitoring Centre, Cambridge, United Kingdom
| | - Jenny Fong
- Tropical Marine Science Institute, National University of Singapore, Singapore
| | - Alex T Ford
- Institute of Marine Sciences, University of Portsmouth, Portsmouth, Hampshire PO4 9LY, United Kingdom
| | - Tony Gutierrez
- School of Engineering and Physical Sciences, Institute of Mechanical, Process and Energy Engineering, Heriot-Watt University, Edinburgh, United Kingdom
| | - Fauziah Shahul Hamid
- Centre for Research in Waste Management, Institute of Biological Sciences, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Jan G Hiddink
- School of Ocean Sciences, Bangor University, Menai Bridge, Anglesey LL59 5AB, United Kingdom
| | - Pham T Hoa
- School of Biotechnology, International University, Vietnam National University, Ho Chi Hinh City, Viet Nam
| | - Sophie I Holland
- School of Engineering and Physical Sciences, Institute of Mechanical, Process and Energy Engineering, Heriot-Watt University, Edinburgh, United Kingdom
| | - Lowenna Jones
- Centre for Ecology and Conservation, University of Exeter, Penryn Campus, Penryn, Cornwall TR10 9EZ, United Kingdom; Department of Politics and International Relations, Faculty of Social Sciences, University of Sheffield, Western Bank, Sheffield S10 2TN, United Kingdom
| | - Nia H Jones
- School of Ocean Sciences, Bangor University, Menai Bridge, Anglesey LL59 5AB, United Kingdom
| | - Heather Koldewey
- Centre for Ecology and Conservation, University of Exeter, Penryn Campus, Penryn, Cornwall TR10 9EZ, United Kingdom; Zoological Society of London, London, United Kingdom
| | - Federico M Lauro
- Singapore Centre for Environmental Life Sciences Engineering, Nanyang Technological University, 637551, Singapore; Asian School of the Environment, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore
| | - Charlotte Lee
- Division of Biological and Environmental Sciences, Faculty of Natural Sciences, University of Stirling, Stirling FK9 4LA, United Kingdom
| | - Matt Lewis
- School of Ocean Sciences, Bangor University, Menai Bridge, Anglesey LL59 5AB, United Kingdom
| | - Danny Marks
- School of Law and Government, Dublin City University, Dublin 9 Dublin, Ireland
| | - Sabine Matallana-Surget
- Division of Biological and Environmental Sciences, Faculty of Natural Sciences, University of Stirling, Stirling FK9 4LA, United Kingdom
| | | | - John McGeehan
- Centre for Enzyme Innovation, School of Biological Sciences, University of Portsmouth, Portsmouth, Hampshire PO1 2DY, United Kingdom
| | - Lauren F Messer
- Division of Biological and Environmental Sciences, Faculty of Natural Sciences, University of Stirling, Stirling FK9 4LA, United Kingdom
| | - Laura Michie
- Institute of Marine Sciences, University of Portsmouth, Portsmouth, Hampshire PO4 9LY, United Kingdom
| | - Michelle A Miller
- Asia Research Institute, National University of Singapore, Singapore
| | - Zeeda F Mohamad
- Department of Science and Technology Studies, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Nur Hazimah Mohamed Nor
- Asian School of the Environment, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore
| | - Moritz Müller
- Faculty of Engineering, Computing and Science, Swinburne University of Technology Sarawak Campus, Kuching 93350, Malaysia
| | - Simon P Neill
- School of Ocean Sciences, Bangor University, Menai Bridge, Anglesey LL59 5AB, United Kingdom
| | - Sarah E Nelms
- Centre for Ecology and Conservation, University of Exeter, Penryn Campus, Penryn, Cornwall TR10 9EZ, United Kingdom
| | - Deo Florence L Onda
- The Marine Science Institute, Velasquez St., University of the Philippines, Diliman, Quezon City 1101, Philippines
| | - Joyce J L Ong
- Asian School of the Environment, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore
| | - Agamuthu Pariatamby
- Jeffrey Sachs Centre on Sustainable Development, Sunway University, Selangor Darul Ehsan 47500, Malaysia
| | - Sui C Phang
- Centre for Blue Governance, Department of Economics and Finance, University of Portsmouth, Portsmouth, Hampshire PO1 3DE, United Kingdom; The Nature Conservancy, London Office, 5 Chancery Lane Suite 403, London WC2A 1LG, United Kingdom
| | - Richard Quilliam
- Division of Biological and Environmental Sciences, Faculty of Natural Sciences, University of Stirling, Stirling FK9 4LA, United Kingdom
| | - Peter E Robins
- School of Ocean Sciences, Bangor University, Menai Bridge, Anglesey LL59 5AB, United Kingdom
| | - Maria Salta
- School of Biological Sciences, University of Portsmouth, Portsmouth, Hampshire PO1 2DY, United Kingdom
| | - Aida Sartimbul
- Faculty of Fisheries and Marine Sciences, Universitas Brawijaya, Malang 65145, East Java, Indonesia; Marine Resources Exploration and Management (MEXMA) Research Group, Universitas Brawijaya, Malang 65145, East Java, Indonesia
| | - Shiori Shakuto
- Department of Anthropology, School of Social and Political Sciences, The University of Sydney, Social Sciences Building, NSW 2006, Australia
| | - Martin W Skov
- School of Ocean Sciences, Bangor University, Menai Bridge, Anglesey LL59 5AB, United Kingdom
| | - Evelyn B Taboada
- BioProcess Engineering and Research Centre, Department of Chemical Engineering, School of Engineering, University of San Carlos, Cebu City 6000, Philippines
| | - Peter A Todd
- Experimental Marine Ecology Laboratory, Department of Biological Sciences, National University of Singapore, 16 Science Drive 4, 117558, Singapore
| | - Tai Chong Toh
- Tropical Marine Science Institute, National University of Singapore, Singapore; College of Alice & Peter Tan, National University of Singapore, 8 College Avenue East, 138615, Singapore
| | - Suresh Valiyaveettil
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543, Singapore
| | - Voranop Viyakarn
- Department of Marine Science, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand; Aquatic Resources Research Institute Chulalongkorn University, Bangkok 10330, Thailand
| | - Passorn Wonnapinij
- Department of Genetics, Faculty of Science, Kasetsart University, Bangkok 10900, Thailand; Centre for Advanced Studies in Tropical Natural Resources, Kasetsart University, Bangkok 10900, Thailand; Omics Center for Agriculture, Bioresources, Food and Health, Kasetsart University (OmiKU), Bangkok 10900, Thailand
| | - Louisa E Wood
- Centre for Blue Governance, Department of Economics and Finance, University of Portsmouth, Portsmouth, Hampshire PO1 3DE, United Kingdom
| | - Clara L X Yong
- Experimental Marine Ecology Laboratory, Department of Biological Sciences, National University of Singapore, 16 Science Drive 4, 117558, Singapore
| | - Brendan J Godley
- Centre for Ecology and Conservation, University of Exeter, Penryn Campus, Penryn, Cornwall TR10 9EZ, United Kingdom
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21
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Li C, Zhong H, Zhang W. Reply to Comments on "A Scientometric Analysis of Recent Literature on Arsenic Bioaccumulation and Biotransformation in Marine Ecosystems". Bull Environ Contam Toxicol 2022; 109:239-240. [PMID: 34424377 DOI: 10.1007/s00128-021-03354-w] [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: 07/13/2021] [Accepted: 08/10/2021] [Indexed: 06/13/2023]
Abstract
In this letter, we formally replied to the comments on our recently published paper "A scientometric analysis of recent literature on arsenic bioaccumulation and biotransformation in marine ecosystems" with evidence and facts.
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Affiliation(s)
- Chengjun Li
- Institute of Environmental Research At Greater Bay Area, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou, 510006, China
| | - Huan Zhong
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, Jiangsu, China
| | - Wei Zhang
- Institute of Environmental Research At Greater Bay Area, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou, 510006, China.
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22
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Zhang W, Zhang D, Han S, Zhang C, Shan B. Evidence of improvements in the water quality of coastal areas around China. Sci Total Environ 2022; 832:155147. [PMID: 35413351 DOI: 10.1016/j.scitotenv.2022.155147] [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: 01/08/2022] [Revised: 03/27/2022] [Accepted: 04/05/2022] [Indexed: 06/14/2023]
Abstract
Coastal areas are huge carbon stores and hotspots for marine carbon fixation. Changes in the water quality of coastal areas are closely linked to their carbon fixation function. In this study, monitoring data were analyzed to identify how the water quality in China's coastal areas changed from 2001 to 2020. The results showed that the water quality in the coastal areas had improved gradually since 2001. The proportion of water quality in Class II and above gradually increased from 41.4% in 2001 to 77.4% in 2020, meanwhile, the proportion of water quality less than Class II, decreased from 58.6% to 22.6%, respectively. Of the four sea areas, the water quality was best in the Yellow Sea, and was poor in the East China Sea. The water quality varied between the different coastal provinces and cities and was good in coastal areas of Hainan, Guangxi, Shandong, and other provinces and cities, but was poor in Shanghai, Zhejiang, and Tianjin. Terrestrial anthropogenic pollutants were the main influence on the water quality in the coastal areas. As a hotspot for fixing blue carbon, the continuous improvement of the water quality of coastal areas laid a foundation for the health of the blue carbon ecosystems.
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Affiliation(s)
- Wenqiang Zhang
- State Key Laboratory on Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, P. O. Box 2871, Beijing 100085, PR China.
| | - Dianwei Zhang
- College of Energy and Environmental Engineering, Hebei University of Engineering, Hebei, Handan 056038, PR China
| | - Songjie Han
- State Key Laboratory on Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, P. O. Box 2871, Beijing 100085, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Chao Zhang
- State Key Laboratory on Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, P. O. Box 2871, Beijing 100085, PR China
| | - Baoqing Shan
- State Key Laboratory on Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, P. O. Box 2871, Beijing 100085, PR China
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23
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Levy N, Berman O, Yuval M, Loya Y, Treibitz T, Tarazi E, Levy O. Emerging 3D technologies for future reformation of coral reefs: Enhancing biodiversity using biomimetic structures based on designs by nature. Sci Total Environ 2022; 830:154749. [PMID: 35339542 DOI: 10.1016/j.scitotenv.2022.154749] [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: 11/09/2021] [Revised: 03/10/2022] [Accepted: 03/18/2022] [Indexed: 06/14/2023]
Abstract
The rapid decline of vulnerable coral reefs has increased the necessity of exploring interdisciplinary methods for reef restoration. Examining how to upgrade these tools may uncover options to better support or increase biodiversity of coral reefs. As many of the issues facing reef restoration today deal with the scalability and effectiveness of restoration efforts, there is an urgency to invest in technology that can help reach ecosystem-scale. Here, we provide an overview on the evolution to current state of artificial reefs as a reef reformation tool and discuss a blueprint with which to guide the next generation of biomimetic artificial habitats for ecosystem support. Currently, existing artificial structures have difficulty replicating the 3D complexity of coral habitats and scaling them to larger areas can be problematic in terms of production and design. We introduce a novel customizable 3D interface for producing scalable, biomimetic artificial structures, utilizing real data collected from coral ecosystems. This interface employs 3D technologies, 3D imaging and 3D printing, to extract core reef characteristics, which can be translated and digitized into a 3D printed artificial reef. The advantages of 3D printing lie in providing customized tools by which to integrate the vital details of natural reefs, such as rugosity and complexity, into a sustainable manufacturing process. This methodology can offer economic solutions for developing both small and large-scale biomimetic structures for a variety of restoration situations, that closely resemble the coral reefs they intend to support.
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Affiliation(s)
- Natalie Levy
- Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat Gan 52900, Israel.
| | - Ofer Berman
- Design-Tech Lab, Industrial Design Department at the Faculty of Architecture and Town Planning Technion, Israel Institute of Technology, Haifa 3200003, Israel
| | - Matan Yuval
- Hatter Department of Marine Technologies, Charney School of Marine Sciences, University of Haifa, Haifa 3498838, Israel; Department of Marine Biology, Charney School of Marine Sciences, University of Haifa, Haifa 3498838, Israel; Inter-University Institute for Marine Sciences of Eilat, Eilat 88103, Israel
| | - Yossi Loya
- School of Zoology, Tel-Aviv University, Ramat Aviv 6997801, Israel
| | - Tali Treibitz
- Department of Marine Biology, Charney School of Marine Sciences, University of Haifa, Haifa 3498838, Israel
| | - Ezri Tarazi
- Design-Tech Lab, Industrial Design Department at the Faculty of Architecture and Town Planning Technion, Israel Institute of Technology, Haifa 3200003, Israel
| | - Oren Levy
- Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat Gan 52900, Israel
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24
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Gilron G, Smith S. Implications of deep-seabed mining on marine ecosystems-Introduction to a special series of papers. Integr Environ Assess Manag 2022; 18:631-633. [PMID: 34590782 DOI: 10.1002/ieam.4526] [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: 07/09/2021] [Revised: 09/24/2021] [Accepted: 09/29/2021] [Indexed: 06/13/2023]
Abstract
After more than 50 years of exploration and research that has intensified over the past decade, deep-seabed mining (DSM) remains a controversial subject, resulting mainly from legacy issues of other extractive industries. Moreover, our planet is environmentally challenged, with climate change as one of the major issues that we collectively face. Deep-seabed mining aims to collect metal resources lying on the deep seabed to help meet increased global demand caused by growth in population and urbanization, and clean energy, in a way that reduces pressures on land, such as deforestation and community relocation. The metals found on the seabed are those needed to address climate change through clean energy technologies. An important question facing us is: How do we, most responsibly, obtain the metals we need with the least impact on the planet we are trying to protect? DSM is one of the options to meet the demand. In this IEAM special series, we set out to present neutral and unbiased perspectives on the environmental implications of DSM. Our aim is to offer readers environmental management considerations learned by researchers around the world and working in diverse aspects of the field, including: population and community assessment, biota ecosystem services, environmental ethics, and rehabilitation and restoration. In consideration of the controversies, fundamental questions still remain: How can a new industry be given the opportunity to "do the right thing"? How do we make evidence-based decisions about where metals should come from when emotions and possibly fear often seem to drive the debate? Can we assume that decisions and policies are best achieved based on data and evidence? The papers presented in the series help address these questions and cover a range of diverse topics from ethical frameworks to biodiversity assessment to risk assessment to restoration. Integr Environ Assess Manag 2022;18:631-633. © 2021 SETAC.
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Affiliation(s)
- Guy Gilron
- Borealis Environmental Consulting Inc., North Vancouver, British Columbia, Canada
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25
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Mahboob S, Ahmed Z, Farooq Khan M, Saho C, Virik P, Al-Mulhm N, Baabbad AAA. Ecogenotoxicological studies for an early toxicity screening and monitoring in Epinephalus chlorostigma and Scamberomorus commerson. Saudi J Biol Sci 2022; 29:2719-2726. [PMID: 35531145 PMCID: PMC9073060 DOI: 10.1016/j.sjbs.2021.12.064] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Revised: 12/22/2021] [Accepted: 12/28/2021] [Indexed: 11/12/2022] Open
Abstract
The study was planned to investigate DNA fragmentation in fish to screen aquatic toxicity and in Epinephalus chlorostigma and Scamberomorus commerson collected from Red sea near Jizan, Saudi Arabia from three locations “(Corniche North park: “16.92161, 42.54631; Jizan Port: 16.874, 42.54952” N and Jizan Economic City: 17.26589, 42.34738“ ”)“ were used as a case study for the application of comet assay. The study area of the Red Sea is polluted due to anthropogenic activities and the disposal of wastes from multiple sources. Comet and micronucleus assays were used to detect genotoxicity in these fish species harvested from three sites. The concentration of Pb, Cr, Zn, Mn, Cu, Cd, Sn, and Hg was higher in the water samples collected from the polluted site compared to the non-polluted site of the Red sea. Comet assay for S. commerson showed significant (p < 0.05) genetic damage about 44.33 ± 3.03% DNA in comet tail at site S1. It was subsequently reduced to 31.71 ± 3.52% and 22.11 ± 2.52% at sites S2 and S3. E. chlorostigma also showed significant DNA in comet tail as 17.34 ± 2.19%, 11.87 ± 3.01%, and 36.41 ± 3.98% at site S1-S3, respectively. Significant (p < 0.05) DNA damage was observed in the fishes procured from non-polluted locations and upstream locations. The micronucleus induction in E. chlorostigma was recorded as 23.20 ± 4.19 and 2.20 ± 0.58%, respectively, non-polluted and polluted sites. S. commerson exhibited significant differences between polluted and non-polluted sites (44.80 ± 3.73 and 8.20 ± 2.20‰) polluted and upstream (44.80 ± 3.73 and 20.60 ± 4.02‰), respectively. A significant difference was obtained between E. chlorostigma and S. commerson for nuclear abnormalities S. commerson showed higher frequencies for nuclear deformities than E. chlorostigma. S. commerson showed substantial micronucleus induction frequencies collected from an area of low pollution intensity (upstream). This study showed that E. clorostigma and S. commerson could be successfully used as a bioindicator to determine the health of the Red Sea through the most specific assays such as comet and micronucleus tests as an early warning and to devise the monitoring strategies to ensure a safe supply of fish for human consumption.
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Affiliation(s)
- Shahid Mahboob
- Department of Zoology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Zubair Ahmed
- Department of Zoology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Muhammad Farooq Khan
- Bioproducts Research Chair, Department of Zoology, College of Science, King Saud University, Saudi Arabia
| | - Changwei Saho
- Key Lab of Sustainable Development of Marine Fisheries, Ministry of Agriculture, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, China.,Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
| | - Promy Virik
- Department of Zoology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - N Al-Mulhm
- Department of Zoology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Almohannad A A Baabbad
- Bioproducts Research Chair, Department of Zoology, College of Science, King Saud University, Saudi Arabia
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Song S, Gui Y, Rahman MS, Xu H. Use of protozoan periphytons for evaluating of environmental heterogeneity in intertidal zones of marine ecosystems. Mar Pollut Bull 2022; 177:113498. [PMID: 35247805 DOI: 10.1016/j.marpolbul.2022.113498] [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: 02/15/2022] [Accepted: 02/24/2022] [Indexed: 06/14/2023]
Abstract
As an important biological indicator, multivariate dispersion in homogeneity of an observed community is a useful parameter for bioassessment of environmental heterogeneity. To identify the influence of tidal events on homogeneity of protozoan periphyton fauna from the highest tideline to the lowest, a 1-month baseline survey was carried out along five tidelines (sites A-E) in an intertidal zone of the Yellow Sea, northern China. There was a significant influence of tidal events on the homogeneity in both compositional and community structure among five tidelines. The β-diversity measures generally decreased from the highest tideline to the lowest. The biodiversity indices of the protozoans dropped sharply from the highest to the middle tidelines, followed by an increase until to the lowest tideline. These findings suggest that the homogeneity of protozoan periphyton in both species composition and relative abundance was significantly shaped by the environmental heterogeneity in intertidal zones of marine ecosystems.
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Affiliation(s)
- Suihan Song
- Laboratory of Microbial Ecology, College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China
| | - Yuying Gui
- Laboratory of Microbial Ecology, College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China
| | - Mohammad Shafiqur Rahman
- Laboratory of Microbial Ecology, College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China
| | - Henglong Xu
- Laboratory of Microbial Ecology, College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China.
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27
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Hassan IA, Younis A, Al Ghamdi MA, Almazroui M, Basahi JM, El-Sheekh MM, Abouelkhair EK, Haiba NS, Alhussaini MS, Hajjar D, Abdel Wahab MM, El Maghraby DM. Contamination of the marine environment in Egypt and Saudi Arabia with personal protective equipment during COVID-19 pandemic: A short focus. Sci Total Environ 2022; 810:152046. [PMID: 34856280 PMCID: PMC9728476 DOI: 10.1016/j.scitotenv.2021.152046] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [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: 08/28/2021] [Revised: 11/20/2021] [Accepted: 11/24/2021] [Indexed: 05/19/2023]
Abstract
Plastic pollution and its impact on marine ecosystems are major concerns globally, and the situation was exacerbated after the outbreak of COVID-19. Clean-up campaigns took place during the summer season (June-August 2020) in two coastal cities in Egypt (Alexandria and Hurghada) and Jeddah, Saudi Arabia to document the abundance of beach debris through public involvement, and then remove it. A total of 3673, 255, and 848 items were collected from Alexandria, Hurghada, and Jeddah daily, respectively. Gloves and face masks (personal protective equipment "PPE") represent represented 40-60% of the total plastic items collected from each of the three cities, while plastic bags represented 7-20% of the total plastics litter collected from the same cities. The results indicated the presence of 2.79, 0.29, and 0.86 PPE item m-2 in Alexandria, Hurghada and Jeddah, respectively. This short focus provides an assessment of the environmental impacts of single-use gloves and masks used for COVID-19 protection from June to August 2020. To the best of our knowledge, this study presents the first such information from the Middle East, specifically Egypt and Saudi Arabia. It highlights the need for further knowledge and action, such as safe, sustainable, and transparent waste management processes related to COVID-19 to reduce the negative impacts now, as well as in future events. Furthermore, this study helps in achieving key components of the United Nation's Sustainable Development Goals (SDGs). This short focus can serve as a multipurpose document, not only for scientists of different disciplines but for social media and citizens in general.
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Affiliation(s)
- Ibrahim A Hassan
- Faculty of Science, Alexandria University, 21511 Moharem Bay, Alexandria. Egypt; National Scientific Committee of Problems in Environment (SCOPE), Academy of Scientific Research & Technology (ASRT), 101 Kasr Al-Ini Street, Cairo, Egypt.
| | - Alaa Younis
- National Scientific Committee of Problems in Environment (SCOPE), Academy of Scientific Research & Technology (ASRT), 101 Kasr Al-Ini Street, Cairo, Egypt; Aquatic Environment Department, Faculty of Fish Resources, Suez University, Egypt
| | - Mansour A Al Ghamdi
- Faculty of Meteorology, Environment and Arid Land Agriculture, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Mansour Almazroui
- Centre of Excellence for Climate Change Research/Department of Meteorology, King Abdulaziz University, PO Box 80208, Jeddah 21589, Saudi Arabia; Climatic Research Unit, School of Environmental Sciences, University of East Anglia, Norwich, UK.
| | - Jalal M Basahi
- Faculty of Meteorology, Environment and Arid Land Agriculture, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Mostafa M El-Sheekh
- Department of Botany & Microbiology, Faculty of Science, Tanta University, Tanta, Egypt
| | | | - Nesreen S Haiba
- Department of Physics & Chemistry, Faculty of Education, Alexandria University, El Shatby, Alexandria. Egypt
| | - Mohammed S Alhussaini
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Shaqra University, Saudi Arabia
| | - Dina Hajjar
- Department of Biochemistry, Faculty of Science, University of Jeddah, Jeddah, Saudi Arabia
| | - Magdy M Abdel Wahab
- National Scientific Committee of Problems in Environment (SCOPE), Academy of Scientific Research & Technology (ASRT), 101 Kasr Al-Ini Street, Cairo, Egypt; Department of Space science, Faculty of Science, Cairo University, Giza, Egypt
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Kazmi SSUH, Xu H, Warren A. A community-based approach to analyzing the ecotoxicity of nitrofurazone using periphytic protozoa. Mar Pollut Bull 2022; 175:113165. [PMID: 34839952 DOI: 10.1016/j.marpolbul.2021.113165] [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: 08/05/2021] [Revised: 11/13/2021] [Accepted: 11/13/2021] [Indexed: 06/13/2023]
Abstract
The ecotoxicity of nitrofurazone was analyzed based on a community-based approach using periphytic protozoa. Median lethal concentrations (LC50) within an exposure time of 30 min were determined by an acute toxicity test at 0, 1.5, 3, 6 and 12 mg ml-1 nitrofurazone. Toxicity curve tests demonstrated a decreasing trend with increasing exposure time and was well fitted to the toxicity equation LC50 = 32.85e-0.8143t (t = exposure time; R2 = 0.91; P < 0.05). Median inhibition concentrations (IC50) for periphytic protozoan growth rates were obtained by chronic tests at 0, 1, 2, 4 and 8 mg ml-1 nitrofurazone within 10 days exposure and were well fitted to the equation r% = 0.3686e-0.35Cnit (Cnit is the concentration of nitrofurazone; R2 = 0.92 and P < 0.05). These findings suggest that the LC50 and IC50 values of nitrofurazone can be predicted for any exposure time using periphytic protozoan communities as a bioassay model.
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Affiliation(s)
| | - Henglong Xu
- Department of Microbial Ecology, Ocean University of China, Qingdao 266003, PR China.
| | - Alan Warren
- Department of Life Sciences, Natural History Museum, London SW7 5BD, UK
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29
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Zhong X, Yu S, Xu H, Kim S. Can tidal events influence analysis on colonization dynamics in body-size spectrum of periphytic ciliates for marine bioassessment? Mar Pollut Bull 2022; 175:113342. [PMID: 35093783 DOI: 10.1016/j.marpolbul.2022.113342] [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: 11/29/2021] [Revised: 01/05/2022] [Accepted: 01/09/2022] [Indexed: 06/14/2023]
Abstract
The tidal influence on body-size spectrum of the protozoan periphytons was explored by using the conventional slide system (CS) and the polyurethane foam enveloped slide system (PFES) in coastal waters during a 1-month study. During the colonization process, clear temporal patterns of the body-size spectrum were observed using the two sampling methods. In terms of relative species number and frequency of occurrence, the rank S4 represented a more stable temporal variability in the PFES system than the CS system during the colonization. Additionally, the small forms (e.g., S1, S2, and S3) were more abundant in the PFES system. The clustering and bootstrapped average analyses demonstrated differences in body-size spectrum of protozoans between the two sampling systems. Our results imply that the body-size spectrum of protozoan periphytons may be impacted by tidal events during colonization process in marine waters.
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Affiliation(s)
- Xiaoxiao Zhong
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, Shandong, China
| | - Shitao Yu
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, Shandong, China.
| | - Henglong Xu
- Laboratory of Microbial Ecology, Ocean University of China, Qingdao 266003, China
| | - Sanghee Kim
- Division of Polar Life Sciences, Korea Polar Research Institute, Incheon 21990, Republic of Korea
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30
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Rodriguez ID, Marina TI, Schloss IR, Saravia LA. Marine food webs are more complex but less stable in sub-Antarctic (Beagle Channel, Argentina) than in Antarctic (Potter Cove, Antarctic Peninsula) regions. Mar Environ Res 2022; 174:105561. [PMID: 35026725 DOI: 10.1016/j.marenvres.2022.105561] [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: 06/14/2021] [Revised: 10/26/2021] [Accepted: 01/05/2022] [Indexed: 06/14/2023]
Abstract
Food web structure plays an important role in determining ecosystem stability against perturbations. High-latitude marine ecosystems are being affected by environmental stressors and biological invasions. In the West Antarctic Peninsula these transformations are mainly driven by climate change, while in the sub-Antarctic region by anthropogenic activities. Understanding the differences between these areas is necessary to monitor the changes that are expected to occur in the upcoming decades. Here, we compared the structure and stability of Antarctic (Potter Cove) and sub-Antarctic (Beagle Channel) marine food webs. We compiled species trophic interactions (predator-prey) and calculated complexity, structure and stability metrics. Even if both food webs presented the same connectance, we found important differences between them. The Beagle Channel food web is more complex, but less stable and sensitive to the loss of its most connected species, while the Potter Cove food web presented lower complexity and greater stability against perturbations.
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Affiliation(s)
- Iara Diamela Rodriguez
- Biology and Bioinformatics Area, Instituto de Ciencias (ICI), Universidad Nacional de General Sarmiento (UNGS), Juan María Gutiérrez 1150, CP 1613, Los Polvorines, Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina
| | - Tomás I Marina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina; Laboratorio de Oceanografía Biológica, Centro Austral de Investigaciones Científicas (CADIC-CONICET), Bernardo Houssay 200, CP 9410, Ushuaia, Argentina
| | - Irene Ruth Schloss
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina; Laboratorio de Oceanografía Biológica, Centro Austral de Investigaciones Científicas (CADIC-CONICET), Bernardo Houssay 200, CP 9410, Ushuaia, Argentina; Instituto Antártico Argentino (IAA), Av. 25 de Mayo 1147, CP 1650, San Martín, Buenos Aires, Argentina
| | - Leonardo Ariel Saravia
- Biology and Bioinformatics Area, Instituto de Ciencias (ICI), Universidad Nacional de General Sarmiento (UNGS), Juan María Gutiérrez 1150, CP 1613, Los Polvorines, Buenos Aires, Argentina.
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31
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Gunasekaran K, Karthikeyan P, Yosuva M, Manigandan V, Subagunasekar M. Nivar cyclonic impacts on mollusk habitat destruction in Parangipettai, southeast coast of Tamil Nadu, India: A case study. Mar Pollut Bull 2021; 173:113022. [PMID: 34624629 DOI: 10.1016/j.marpolbul.2021.113022] [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: 12/18/2020] [Revised: 09/22/2021] [Accepted: 09/29/2021] [Indexed: 06/13/2023]
Abstract
Tropical storms form in the Bay of Bengal every year during the pre-monsoon season, affecting the coastal communities and the marine ecosystem. On November 25, 2020, severe cyclone Nivar impacted the southeast coast of Tamil Nadu, causing massive damage to marine benthic species. The study found that the Nivar cyclone's high velocity wind impacted tidal currents and damaged sediment compartments. This phenomenonhas immensely affected the benthic communities of Mudasalodai, Parangipettai, Puthupettai, Samiyarpettai, and Kumarapettai. Post-Nivar cyclone observations revealed massive bivalve and gastropod mortality. The two molluscan species lost their habitats due to the tremendous cyclone effect. More than 1 lakh Mactra violacea were emigrated from Parangipettai and 5 lakh Turritella acutangula and T. attenuata were emigrated from Samiyarpettai. Thus, the Nivar cyclone severely damaged mollusk habitats along India's southeast coast. The severe cyclonic storm Nivar disrupted the southeast coast of India, with losses amounting to over $600 million.
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Affiliation(s)
- K Gunasekaran
- Centre of Advanced Study in Marine Biology, Faculty of Marine Sciences, Annamalai University, Parangipettai 608502, Tamil Nadu, India
| | - P Karthikeyan
- School of Marine Sciences, Department of Oceanography and Coastal Area Studies, Alagappa University, Karaikudi 630 003, Tamil Nadu, India.
| | - M Yosuva
- Centre of Advanced Study in Marine Biology, Faculty of Marine Sciences, Annamalai University, Parangipettai 608502, Tamil Nadu, India; M. S. Swaminathan Research Foundation, Village Resource Centre, Thangachimadam, Ramanathapuram 623 529, Tamil Nadu, India
| | - V Manigandan
- Centre of Advanced Study in Marine Biology, Faculty of Marine Sciences, Annamalai University, Parangipettai 608502, Tamil Nadu, India
| | - M Subagunasekar
- Centre for Geoinformatics, School of Health Sciences & Rural Development, The Gandhigram Rural Institute (Deemed to be University), Dindigul - 624302, Tamil Nadu, India
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32
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Kazmi SSUH, Zhong X, Xu H. An approach to evaluating the acute toxicity of nitrofurazone on community functioning using protozoan periphytons. Mar Pollut Bull 2021; 173:113066. [PMID: 34688084 DOI: 10.1016/j.marpolbul.2021.113066] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 08/20/2021] [Revised: 10/03/2021] [Accepted: 10/14/2021] [Indexed: 06/13/2023]
Abstract
The acute toxicity of nitrofurazone on community functioning was studied using an acute toxicity test. Consequently, 14-day protozoan periphyton assemblages were used as test organism communities, under a range of nitrofurazone concentrations including 0 (control), 0.5, 3, 6, and 12 mg ml-1 within 0, 2, 4, 6, 8, 10, and 12 h time duration. Fuzzy coding system of functional traits classified the test protozoan periphyton community into six major traits and 15 categories. Briefly, community-weighted means (CWM) were used to identify the community functioning of test protozoan assemblage. Inferences demonstrate a drastic/significant variation in the functional patterns of the test organisms at a high concentration (12 mg ml-1) after an exposure time of 12 h, but the functional diversity indices leveled off at the exposure time of 10 h and then dropped sharply. These results suggested that nitrofurazone may significantly influence the community functioning in marine ecosystems.
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Affiliation(s)
| | - Xiaoxiao Zhong
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Henglong Xu
- Department of Microbial Ecology, Ocean University of China, Qingdao 266003, China.
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33
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Le Quesne WJF, Fernand L, Ali TS, Andres O, Antonpoulou M, Burt JA, Dougherty WW, Edson PJ, El Kharraz J, Glavan J, Mamiit RJ, Reid KD, Sajwani A, Sheahan D. Is the development of desalination compatible with sustainable development of the Arabian Gulf? Mar Pollut Bull 2021; 173:112940. [PMID: 34537571 DOI: 10.1016/j.marpolbul.2021.112940] [Citation(s) in RCA: 3] [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: 07/26/2020] [Revised: 09/01/2021] [Accepted: 09/03/2021] [Indexed: 06/13/2023]
Abstract
The development of desalination has been essential to the rapid economic development of the countries bordering the Arabian Gulf. The current production capacity of sea water desalination plants drawing water from Gulf is over 20 million m3 day-1, which may rise to 80 million m3 day-1 by 2050. Whilst supporting aspects of sustainable development related to water and sanitation, desalination impacts the marine environment through impingement and entrainment of organisms in intakes, and through thermal, brine and chemical discharges. This may compromise other objectives for sustainable development related to sustainable use of the oceans. Under business as usual scenarios, by 2050, the impact of individual desalination plants will combine causing a regional scale impact. Without mitigating actions to avoid the business as usual scenario, by 2050, desalination in combination with climate change, will elevate coastal water temperatures across more than 50% of the Gulf by at least 3 °C, and a volume of water equivalent to more than a third of the total volume of water between 0 and 10 m deep will pass through desalination plants each year. This will adversely impact the coastal ecosystem of the Gulf, with impacts on biodiversity, fisheries and coastal communities and may cause potential loss of species and habitats from the Gulf. Given the significant implications of these preliminary findings, and in light of the precautionary approach to management, it is recommended that mitigating options addressing behavioural, regulatory and technological change are rapidly evaluated and implemented to avoid the development of desalination in the region along a business as usual pathway, and multidisciplinary research studies should be conducted to reduce uncertainty in predictions of future impacts.
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Affiliation(s)
- W J F Le Quesne
- Centre for Environment, Fisheries and Aquaculture Sciences (Cefas), Lowestoft, NR33 0HT, UK.
| | - L Fernand
- Centre for Environment, Fisheries and Aquaculture Sciences (Cefas), Lowestoft, NR33 0HT, UK
| | - T S Ali
- Department of Natural Resources and Environment, Arabian Gulf University, Bahrain
| | - O Andres
- Centre for Environment, Fisheries and Aquaculture Sciences (Cefas), Lowestoft, NR33 0HT, UK
| | - M Antonpoulou
- Emirates Nature - WWF, Sustainable City, Dubai, United Arab Emirates
| | - J A Burt
- Water Research Center & Center for Genomics and Systems Biology, New York University Abu Dhabi, PO Box 129188, Abu Dhabi, United Arab Emirates
| | - W W Dougherty
- Climate Change Research Group, United States of America
| | - P J Edson
- Oceanographic Institute, University of Sao Paulo (IOUSP), Sao Paulo, Brazil
| | - J El Kharraz
- Middle East Desalination Research Center (MEDRC), P.O. Box 21, P.C. 133 Al Khuwair, Oman
| | - J Glavan
- Abu Dhabi Global Environmental Data Initiative (AGEDI), Environment Agency - Abu Dhabi, Al Moura Building, Abu Dhabi, United Arab Emirates
| | - R J Mamiit
- Global Green Growth Institute (GGGI), Masdar City, Abu Dhabi 135075, United Arab Emirates
| | - K D Reid
- Department of Urban Planning and Municipalities, Abu Dhabi, United Arab Emirates
| | - A Sajwani
- Department of Urban Planning and Municipalities, Abu Dhabi, United Arab Emirates
| | - D Sheahan
- Centre for Environment, Fisheries and Aquaculture Sciences (Cefas), Lowestoft, NR33 0HT, UK
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Pramanik BK, Pramanik SK, Monira S. Understanding the fragmentation of microplastics into nano-plastics and removal of nano/microplastics from wastewater using membrane, air flotation and nano-ferrofluid processes. Chemosphere 2021; 282:131053. [PMID: 34098311 DOI: 10.1016/j.chemosphere.2021.131053] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [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: 02/25/2021] [Revised: 05/11/2021] [Accepted: 05/28/2021] [Indexed: 05/09/2023]
Abstract
Nano/microplastics (NPs/MPs), a tiny particle of plastic pollution, are known as one of the most important environmental threats to marine ecosystems. Wastewater treatment plants can act as entrance routes for NPs/MPs to the aquatic environment as they breakdown of larger fragments of the plastic component during the treatment process; therefore, it is necessary to remove NPs/MPs during the wastewater treatment process. In this study, understanding the effect of water shear force on the fragmentation of larger size MPs into smaller MPs and NPs and their removal by air flotation and nano-ferrofluid (i.e., magnetite and cobalt ferrite particle as a coagulant) and membrane processes were investigated as a proof-of-concept study. It is found that a two-blade mechanical impeller could fragment MPs from 75, 150 and 300 μm into mean size NPs/MPs of 0.74, 1.14 and 1.88 μm, respectively. Results showed that the maximum removal efficiency of polyethylene, polyvinyl chloride and polyester was 85, 82 and 69%, respectively, in the air flotation process. Increasing the dose of behentrimonium chloride surfactant from 2 to 10 mg/L improved the efficiency of the air flotation process for NPs/MPs removal. It is also found that the removal efficiency of NPs/MPs by the air flotation system depends on solution pH, size, and types of NPs/MPs. This study also found a less significant removal efficiency of NPs/MPs by both types of ferrofluid used in this study with an average removal of 43% for magnetite and 55% for cobalt ferrite. All three plastics tested had similar removal efficiency by the nano-ferrofluid particles, meaning that this removal technique does not rely on the plastic component type. Among all the process tested, both ultrafiltration and microfiltration membrane processes were highly effective, removing more than 90% of NPs/MPs fragment particles. Overall, this study has confirmed the effectiveness of using air flotation and the membrane process to remove NPs/MPs from wastewater.
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Affiliation(s)
| | - Sagor Kumar Pramanik
- Department of Civil and Structural Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, 43600, Bangi, Selangor, Malaysia
| | - Sirajum Monira
- School of Engineering, RMIT University, Melbourne, VIC, 3000, Australia
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35
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Facciolà A, Laganà P, Caruso G. The COVID-19 pandemic and its implications on the environment. Environ Res 2021; 201:111648. [PMID: 34242676 PMCID: PMC8261195 DOI: 10.1016/j.envres.2021.111648] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [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: 04/16/2021] [Revised: 07/01/2021] [Accepted: 07/02/2021] [Indexed: 05/06/2023]
Abstract
The emerging threat posed by COVID-19 pandemic has strongly modified our lifestyle, making urgent to re-consider the humans-environment relationships and stimulating towards more sustainable choices in our daily behavior. Scientific evidences showed that the onset of new viral pathogens with a high epidemic-pandemic potential is often the result of complex interactions between animals, humans and environment. In this context, the interest of the scientific community has also been attracted towards the potential interactions of SARS-CoV-2 with environmental compartments. Many issues, ranging from the epidemiology and persistence of SARS-CoV-2 in water bodies to the potential implications of lockdown measures on environmental quality status are here reviewed, with a special reference to marine ecosystems. Due to current sanitary emergence, the relevance of pilot studies regarding the interactions between SARS-CoV-2 spread and the direct and indirect environmental impacts of the COVID-19 pandemic, that are still a matter of scientific debate, is underlined.
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Affiliation(s)
- Alessio Facciolà
- Department of Biomedical and Dental Sciences and Morphofunctional Imaging, University of Messina, Italy
| | - Pasqualina Laganà
- Department of Biomedical and Dental Sciences and Morphofunctional Imaging, University of Messina, Italy.
| | - Gabriella Caruso
- Institute of Polar Sciences (ISP), National Research Council (CNR), Messina, Italy
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36
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Solovjova NV. Ecological risk simulation assessment in marine ecosystems of the Arctic shelf. Mar Pollut Bull 2021; 169:112577. [PMID: 34102415 DOI: 10.1016/j.marpolbul.2021.112577] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 02/08/2021] [Revised: 05/25/2021] [Accepted: 05/26/2021] [Indexed: 06/12/2023]
Abstract
This work elaborates an approach to the ecological risk model assessment in marine systems exposed to intense impacts and accompanying pollution. This approach was applied to the marine ecosystems of the Arctic shelf for two types of ecosystems, i.e. highly productive and low productive. The proposed method makes it possible to identify intervals in the increased ecological risk throughout the year and to calculate the allowable probability of anthropogenic impact depending on this. Variations in ecological risk throughout the year revealed periods of increased hazard and relatively favorable periods with a low risk probability. Performed calculation analysis refutes assumptions that in the Arctic shelf ecosystems with low productivity, a more intense anthropogenic impact is possible supposedly causing no significant damage. The proposed approach in the interdisciplinary aspect reveals possibility to harmonize ecological and economic requirements to ensure safe development of the marine system resources.
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Affiliation(s)
- N V Solovjova
- P.P. Shirshov Institute of Oceanology, Russian Academy of Sciences, Moscow 117997, Russia.
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37
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Lambert V, Bainbridge ZT, Collier C, Lewis SE, Adams MP, Carter A, Saunders MI, Brodie J, Turner RDR, Rasheed MA, O'Brien KR. Connecting targets for catchment sediment loads to ecological outcomes for seagrass using multiple lines of evidence. Mar Pollut Bull 2021; 169:112494. [PMID: 34051518 DOI: 10.1016/j.marpolbul.2021.112494] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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: 01/29/2021] [Revised: 04/30/2021] [Accepted: 05/11/2021] [Indexed: 06/12/2023]
Abstract
Catchment impacts on downstream ecosystems are difficult to quantify, but important for setting management targets. Here we compared 12 years of monitoring data of seagrass area and biomass in Cleveland Bay, northeast Australia, with discharge and associated sediment loads from nearby rivers. Seagrass biomass and area exhibited different trajectories in response to river inputs. River discharge was a slightly better predictor of seagrass indicators than total suspended solid (TSS) loads, indicating that catchment effects on seagrass are not restricted to sediment. Linear relationships between Burdekin River TSS loads delivered over 1-4 years and seagrass condition in Cleveland Bay generated Ecologically Relevant Targets (ERT) for catchment sediment inputs. Our predicted ERTs were comparable to those previously estimated using mechanistic models. This study highlights the challenges of linking catchment inputs to condition of downstream ecosystems, and the importance of integrating a variety of metrics and approaches to increase confidence in ERTs.
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Affiliation(s)
- Victoria Lambert
- School of Chemical Engineering, The University of Queensland, St Lucia, QLD, Australia
| | | | | | - Stephen E Lewis
- TropWATER, James Cook University, Townsville, QLD, Australia
| | - Matthew P Adams
- School of Chemical Engineering, The University of Queensland, St Lucia, QLD, Australia; School of Mathematical Sciences, Queensland University of Technology, Brisbane, QLD, Australia; ARC Centre of Excellence for Mathematical and Statistical Frontiers, Queensland University of Technology, Brisbane, QLD, Australia; Centre for Data Science, Queensland University of Technology, Brisbane, QLD, Australia
| | - Alex Carter
- TropWATER, James Cook University, Townsville, QLD, Australia
| | | | - Jon Brodie
- ARC Centre of Excellence for Coral Reef Studies, James Cook University, Townsville, QLD, Australia
| | - Ryan D R Turner
- Water Quality & Investigations, Department of Environment and Science, Queensland Government, Dutton Park, QLD, Australia; Managing for Resilient Landscapes, Institute for Future Environments, Queensland University of Technology, Brisbane, QLD, Australia
| | | | - Katherine R O'Brien
- School of Chemical Engineering, The University of Queensland, St Lucia, QLD, Australia.
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38
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Zhong X, Yu S, Xu H. Influence of tidal events on the body-size spectrum of periphytic ciliates for marine bioassessment using artificial substrata. Mar Pollut Bull 2021; 168:112435. [PMID: 33989956 DOI: 10.1016/j.marpolbul.2021.112435] [Citation(s) in RCA: 3] [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: 04/07/2021] [Revised: 04/24/2021] [Accepted: 04/26/2021] [Indexed: 06/12/2023]
Abstract
As an internal functional trait of a community, the body-size spectrum is a highly informative indicator for bioassessment of water/environmental quality in aquatic ecosystems. To determine the influence of tidal events on body-size spectra of protozoan periphytons, a 3-month baseline survey was conducted in Korean coastal waters using the polyurethane foam enveloped slide system (PFES) and conventional slide system (CS). The body-size spectrum of the protozoans showed a clear temporal pattern during the study period using both sampling systems. However, the temporal dynamics showed significantly different trajectories in the body-size spectrum between the two sampling methods during the study period. The bootstrapped average analysis revealed that the patterns of the body-size spectrum were significantly different between the PFES and CS systems, especially in terms of frequency of occurrence. These findings suggest that the tidal events may significantly influence body-size spectrum of periphytic ciliates for bioassessment in marine ecosystems.
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Affiliation(s)
- Xiaoxiao Zhong
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Shitao Yu
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China.
| | - Henglong Xu
- Laboratory of Microbial Ecology, Ocean University of China, Qingdao 266003, China
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Tretyakova MO, Vardavas AI, Vardavas CI, Iatrou EI, Stivaktakis PD, Burykina TI, Mezhuev YO, Tsatsakis AM, Golokhvast KS. Effects of coal microparticles on marine organisms: A review. Toxicol Rep 2021; 8:1207-1219. [PMID: 34189057 PMCID: PMC8220176 DOI: 10.1016/j.toxrep.2021.06.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
Coal dust is a source of pollution not only for atmospheric air but also for the marine environment. In places of storage and handling of coal near water bodies, visible pollution of the water area can be observed. Coal, despite its natural origin, can be referred to as anthropogenic sources of pollution. If coal microparticles enter the marine environment, it may cause both physical and toxic effects on organisms. The purpose of this review is to assess the stage of knowledge of the impact of coal particles on marine organisms, to identify the main factors affecting them, and to define advanced research directions. The results presented in the review have shown that coal dust in seawater is generally not an inert substance for marine organisms, and there is a need for further study of the impact of coal dust particles on marine ecosystems.
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Affiliation(s)
- M O Tretyakova
- Far Eastern Federal University, Vladivostok, Russian Federation
| | - A I Vardavas
- Laboratory of Toxicology, School of Medicine, University of Crete, Heraklion, Greece
| | - C I Vardavas
- Laboratory of Toxicology, School of Medicine, University of Crete, Heraklion, Greece
| | - E I Iatrou
- Laboratory of Toxicology, School of Medicine, University of Crete, Heraklion, Greece
| | - P D Stivaktakis
- Laboratory of Toxicology, School of Medicine, University of Crete, Heraklion, Greece
| | - T I Burykina
- Sechenov First Moscow State Medical University, Moscow, Russian Federation
| | - Y O Mezhuev
- Mendeleev University of Chemical Technology of Russia, 125047, Moscow, Russian Federation
| | - A M Tsatsakis
- Laboratory of Toxicology, School of Medicine, University of Crete, Heraklion, Greece
| | - K S Golokhvast
- Far Eastern Federal University, Vladivostok, Russian Federation.,Pacific Institute of Geography FEB RAS, Vladivostok, Russian Federation.,Siberian Federal Scientific Center for Agrobiotechnology RAS, Krasnoobsk, Russian Federation
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40
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Csapó HK, Grabowski M, Węsławski JM. Coming home - Boreal ecosystem claims Atlantic sector of the Arctic. Sci Total Environ 2021; 771:144817. [PMID: 33736126 DOI: 10.1016/j.scitotenv.2020.144817] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [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: 11/04/2020] [Revised: 12/25/2020] [Accepted: 12/25/2020] [Indexed: 05/22/2023]
Abstract
The Atlantification of the European Arctic has been an increasingly discussed topic in polar science over the past two decades. The alteration of local marine ecosystems towards a more temperate state and the appearance/range expansion of subarctic-boreal species at higher latitudes is a complex phenomenon induced mainly by the changing properties of Atlantic water (AW) transported from the south. Areas under the direct influence of AW experience biological Atlantification of their communities on all trophic levels, resulting in the growing complexity of arctic food webs. Here, besides summarising the main documented messages of biological Atlantification, we take a critical view on the threat posed on Arctic marine communities. We take into account the formation of the Arctic marine fauna, as well as the nature of (re)colonisation of Arctic sites by boreal organisms when evaluating the extent of the issue. We take a look at the history of Arctic colonisations by boreal organisms in an attempt to identify 'neonative taxa returning home'. We also highlight the role of floating plastic debris as an 'instrument from the toolbox of the Anthropocene' aiding the distribution of marine taxa.
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Affiliation(s)
- Hedvig Kriszta Csapó
- Polish Academy of Sciences, Institute of Oceanology, 81-712 Sopot, Poland; University of Lodz, Faculty of Biology & Environmental Protection, Department of Invertebrate Zoology & Hydrobiology, 90-237 Lodz, Poland.
| | - Michał Grabowski
- University of Lodz, Faculty of Biology & Environmental Protection, Department of Invertebrate Zoology & Hydrobiology, 90-237 Lodz, Poland
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Baines C, Lerebours A, Thomas F, Fort J, Kreitsberg R, Gentes S, Meitern R, Saks L, Ujvari B, Giraudeau M, Sepp T. Linking pollution and cancer in aquatic environments: A review. Environ Int 2021; 149:106391. [PMID: 33515955 DOI: 10.1016/j.envint.2021.106391] [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: 10/21/2020] [Revised: 12/23/2020] [Accepted: 01/09/2021] [Indexed: 06/12/2023]
Abstract
Due to the interconnectedness of aquatic ecosystems through the highly effective marine and atmospheric transport routes, all aquatic ecosystems are potentially vulnerable to pollution. Whilst links between pollution and increased mortality of wild animals have now been firmly established, the next steps should be to focus on specific physiological pathways and pathologies that link pollution to wildlife health deterioration. One of the pollution-induced pathologies that should be at the centre of attention in ecological and evolutionary research is cancer, as anthropogenic contamination has resulted in a rapid increase of oncogenic substances in natural habitats. Whilst wildlife cancer research is an emerging research topic, systematic reviews of the many case studies published over the recent decades are scarce. This research direction would (1) provide a better understanding of the physiological mechanisms connecting anthropogenic pollution to oncogenic processes in non-model organisms (reducing the current bias towards human and lab-animal studies in cancer research), and (2) allow us to better predict the vulnerability of different wild populations to oncogenic contamination. This article combines the information available within the scientific literature about cancer occurrences in aquatic and semi-aquatic species. For the first aim, we use available knowledge from aquatic species to suggest physiological mechanisms that link pollution and cancer, including main metabolic detoxification pathways, oxidative damage effects, infections, and changes to the microbiome. For the second aim, we determine which types of aquatic animals are more vulnerable to pollution-induced cancer, which types of pollution are mainly associated with cancer in aquatic ecosystems, and which types of cancer pollution causes. We also discuss the role of migration in exposing aquatic and semi-aquatic animals to different oncogenic pollutants. Finally, we suggest novel research avenues, including experimental approaches, analysis of the effects of pollutant cocktails and long-term chronic exposure to lower levels of pollutants, and the use of already published databases of gene expression levels in animals from differently polluted habitats.
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Affiliation(s)
- Ciara Baines
- Institute of Ecology and Earth Sciences, University of Tartu, Vanemuise 46, 51014 Tartu, Estonia.
| | - Adelaide Lerebours
- LIttoral, ENvironnement et Sociétés (LIENSs), UMR7266, CNRS Université de La Rochelle, 2 rue Olympe de Gouges, 17042 La Rochelle Cedex, France
| | - Frederic Thomas
- CREEC/CREES, 911 Avenue Agropolis, BP 6450134394 Montpellier Cedex 5, France; MIVEGEC, UMR IRD/CNRS/UM 5290, 911 Avenue Agropolis, BP 6450134394 Montpellier Cedex 5, France
| | - Jerome Fort
- LIttoral, ENvironnement et Sociétés (LIENSs), UMR7266, CNRS Université de La Rochelle, 2 rue Olympe de Gouges, 17042 La Rochelle Cedex, France
| | - Randel Kreitsberg
- Institute of Ecology and Earth Sciences, University of Tartu, Vanemuise 46, 51014 Tartu, Estonia
| | - Sophie Gentes
- LIttoral, ENvironnement et Sociétés (LIENSs), UMR7266, CNRS Université de La Rochelle, 2 rue Olympe de Gouges, 17042 La Rochelle Cedex, France
| | - Richard Meitern
- Institute of Ecology and Earth Sciences, University of Tartu, Vanemuise 46, 51014 Tartu, Estonia
| | - Lauri Saks
- Estonian Marine Institute, Universty of Tartu, Mäealuse 14, 12618 Tallinn, Harju County, Estonia
| | - Beata Ujvari
- School of Life and Environmental Sciences, Centre for Integrative Ecology, Deakin University, Waurn Ponds, VIC, Australia
| | - Mathieu Giraudeau
- LIttoral, ENvironnement et Sociétés (LIENSs), UMR7266, CNRS Université de La Rochelle, 2 rue Olympe de Gouges, 17042 La Rochelle Cedex, France; CREEC/CREES, 911 Avenue Agropolis, BP 6450134394 Montpellier Cedex 5, France; MIVEGEC, UMR IRD/CNRS/UM 5290, 911 Avenue Agropolis, BP 6450134394 Montpellier Cedex 5, France
| | - Tuul Sepp
- Institute of Ecology and Earth Sciences, University of Tartu, Vanemuise 46, 51014 Tartu, Estonia
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Lee IO, Noh J, Lee J, Kim B, Hwang K, Kwon BO, Lee MJ, Ryu J, Nam J, Khim JS. Stable isotope signatures reveal the significant contributions of microphytobenthos and saltmarsh-driven nutrition in the intertidal benthic food webs. Sci Total Environ 2021; 756:144068. [PMID: 33288261 DOI: 10.1016/j.scitotenv.2020.144068] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 07/31/2020] [Revised: 11/03/2020] [Accepted: 11/20/2020] [Indexed: 06/12/2023]
Abstract
A tidal saltmarsh supporting marine ecosystem services becomes more recognized, but an understanding of its trophic dynamics is far limited. We investigated the benthic food-web dynamics in Ganghwa tidal flat, a representative tidal saltmarsh of South Korea. The stable carbon and nitrogen isotope ratio values were analyzed for the sixteen species of macrobenthos and their potential food sources such as microphytobenthos (MPB) and various organic matters. A year-round survey was conducted in the three sites at Ganghwa showing the different types of sediment bottom (sandy mud or mud) and/or vegetation (Phragmites or Suaeda). In general, the isotopic signature fairly well demonstrated that trophic structure is primarily influenced by sediment mud content and/or dominated vegetation. Among the four feeding types of consumers (filter feeder; deposit feeder; omnivore; carnivore), the deposit feeders such as mollusk, arthropod, and annelid showed increased dietary dependency on MPB at bare sites. Whilst they actively utilized 13C-depleted organic matters at vegetated sites. Meantime, significantly enriched stable nitrogen isotopic ratio of macrobenthos was evidenced in fall, which reflected the seasonal variation of food sources and physiological processes in survival strategy. Overall, the stable isotopic approach was useful to address the key factors (in)directly influencing the benthic food web structure and its functioning in a typical tidal saltmarsh of the Yellow Sea.
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Affiliation(s)
- In Ok Lee
- School of Earth and Environmental Sciences & Research Institute of Oceanography, Seoul National University, Seoul 08826, Republic of Korea
| | - Junsung Noh
- School of Earth and Environmental Sciences & Research Institute of Oceanography, Seoul National University, Seoul 08826, Republic of Korea
| | - Jongmin Lee
- School of Earth and Environmental Sciences & Research Institute of Oceanography, Seoul National University, Seoul 08826, Republic of Korea
| | - Beomgi Kim
- School of Earth and Environmental Sciences & Research Institute of Oceanography, Seoul National University, Seoul 08826, Republic of Korea
| | - Kyuwon Hwang
- School of Earth and Environmental Sciences & Research Institute of Oceanography, Seoul National University, Seoul 08826, Republic of Korea
| | - Bong-Oh Kwon
- Department of Marine Biotechnology, Kunsan National University, Kunsan 54150, Republic of Korea
| | - Moo Joon Lee
- Department of Marine Biotechnology, Anyang University, Ganghwa-gun, Incheon 23038, Republic of Korea
| | - Jongseong Ryu
- Department of Marine Biotechnology, Anyang University, Ganghwa-gun, Incheon 23038, Republic of Korea
| | - Jungho Nam
- Marine Policy Research Division, Korea Maritime Institute, Busan 49111, Republic of Korea
| | - Jong Seong Khim
- School of Earth and Environmental Sciences & Research Institute of Oceanography, Seoul National University, Seoul 08826, Republic of Korea.
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Xu N, Delius GW, Zhang L, Thygesen UH, Andersen KH. Spatial drivers of instability in marine size-spectrum ecosystems. J Theor Biol 2021; 517:110631. [PMID: 33600827 DOI: 10.1016/j.jtbi.2021.110631] [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] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Revised: 02/04/2021] [Accepted: 02/05/2021] [Indexed: 11/17/2022]
Abstract
Size-spectrum models are a recent class of models describing the dynamics of a whole community based on a description of individual organisms. The models are motivated by marine ecosystems where they cover the size range from multicellular plankton to the largest fish. We propose to extend the size-spectrum model with spatial components. The spatial dynamics is governed by a random motion and a directed movement in the direction of increased fitness, which we call 'fitness-taxis'. We use the model to explore whether spatial irregularities of marine communities can occur due to the internal dynamics of predator-prey interactions and spatial movements. This corresponds to a pattern-formation analysis generalized to an entire ecosystem but is not limited to one prey and one predator population. The analyses take the form of Fourier analysis and numerical experiments. Results show that diffusion always stabilizes the equilibrium but fitness-taxis destabilizes it, leading to non-stationary spatially inhomogeneous population densities, which are travelling in size. However, there is a strong asymmetry between fitness-induced destabilizing effects and diffusion-induced stabilizing effects with the latter dominating over the former. These findings reveal that fitness taxis acts as a possible mechanism behind pattern formations in ecosystems with high diversity of organism sizes, which can drive the emergence of spatial heterogeneity even in a spatially homogeneous environment.
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Affiliation(s)
- Nuo Xu
- School of Mathematical Science, Yangzhou University, Yangzhou 225002 China
| | - Gustav W Delius
- Department of Mathematics, University of York, York YO10 5DD, UK
| | - Lai Zhang
- School of Mathematical Science, Yangzhou University, Yangzhou 225002 China.
| | - Uffe H Thygesen
- Department of Applied Mathematics and Computer Science, Technical University of Denmark, Denmark; Center for Ocean Life, National Institute of Aquatic Resources, Technical University of Denmark, Denmark
| | - Ken H Andersen
- Center for Ocean Life, National Institute of Aquatic Resources, Technical University of Denmark, Denmark
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Rahman MS, Sikder MNA, Xu H. Insights into β-diversity of periphytic protozoan fauna along the water column of marine ecosystems. Mar Pollut Bull 2021; 162:111801. [PMID: 33158547 DOI: 10.1016/j.marpolbul.2020.111801] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [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: 09/03/2020] [Revised: 10/17/2020] [Accepted: 10/19/2020] [Indexed: 06/11/2023]
Abstract
It has been increasingly recognized that there is high relevance in determining the β-diversity of communities along an environmental gradient for bioassessment of environmental quality status. To evaluate the vertical variations in β-diversity of periphytic protozoan fauna, in response to environmental heterogeneity in marine ecosystems, a baseline survey was conducted at the four water depths in the coastal waters of the Yellow Sea, northern China. Results demonstrated that (1) the species distribution presented different patterns at four water depths; (2) both compositional and community structure showed a significant vertical variation in multivariate dispersions from surface layer to the deeper layers; and (3) β-diversity measures generally increased from depths of 1 m to 5 m. These findings suggest that the homogeneity in the periphytic communities are of a high variability along the water column of marine ecosystems.
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Affiliation(s)
- Mohammad Shafiqur Rahman
- Laboratory of Microbial Ecology, College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China
| | - Mohammad Nurul Azim Sikder
- Laboratory of Microbial Ecology, College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China
| | - Henglong Xu
- Laboratory of Microbial Ecology, College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China.
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Everaert G, De Rijcke M, Lonneville B, Janssen CR, Backhaus T, Mees J, van Sebille E, Koelmans AA, Catarino AI, Vandegehuchte MB. Risks of floating microplastic in the global ocean. Environ Pollut 2020; 267:115499. [PMID: 33254632 DOI: 10.1016/j.envpol.2020.115499] [Citation(s) in RCA: 70] [Impact Index Per Article: 17.5] [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: 03/16/2020] [Revised: 07/06/2020] [Accepted: 08/21/2020] [Indexed: 05/21/2023]
Abstract
Despite the ubiquitous and persistent presence of microplastic (MP) in marine ecosystems, knowledge of its potential harmful ecological effects is low. In this work, we assessed the risk of floating MP (1 μm-5 mm) to marine ecosystems by comparing ambient concentrations in the global ocean with available ecotoxicity data. The integration of twenty-three species-specific effect threshold concentration data in a species sensitivity distribution yielded a median unacceptable level of 1.21 ∗ 105 MP m-³ (95% CI: 7.99 ∗ 103-1.49 ∗ 106 MP m-³). We found that in 2010 for 0.17% of the surface layer (0-5 m) of the global ocean a threatening risk would occur. By 2050 and 2100, this fraction increases to 0.52% and 1.62%, respectively, according to the worst-case predicted future plastic discharge into the ocean. Our results reveal a spatial and multidecadal variability of MP-related risk at the global ocean surface. For example, we have identified the Mediterranean Sea and the Yellow Sea as hotspots of marine microplastic risks already now and even more pronounced in future decades.
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Affiliation(s)
- G Everaert
- Flanders Marine Institute, Ostend, Belgium.
| | | | | | - C R Janssen
- Ghent University, Laboratory of Environmental Toxicology and Aquatic Ecology, Ghent, Belgium
| | - T Backhaus
- University of Gothenburg, Department of Biological and Environmental Sciences, Gothenburg, Sweden
| | - J Mees
- Flanders Marine Institute, Ostend, Belgium
| | - E van Sebille
- Institute for Marine and Atmospheric research, Utrecht University, Utrecht, the Netherlands
| | - A A Koelmans
- Wageningen University, Aquatic Ecology and Water Quality Management Group, Wageningen, the Netherlands
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Kazmi SSUH, Xu G, Xu H. Insights into the effects of harmful algal bloom on ecological quality status using body-size spectrum of biofilm-dwelling ciliates in marine ecosystems. Mar Pollut Bull 2020; 160:111596. [PMID: 32861933 DOI: 10.1016/j.marpolbul.2020.111596] [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: 04/12/2020] [Revised: 08/22/2020] [Accepted: 08/22/2020] [Indexed: 06/11/2023]
Abstract
The effects of two harmful algae Alexandrium tamarense and Gymnodinium catenatum on ecological quality status were identified using biofilm-dwelling ciliate assemblage as test organism communities. The body-size spectra of the test ciliates were observed at a gradient of cell concentrations of both algal species: 100 (control), followed by102, 103, 104 and 105 cells ml-1. The test ciliates showed clear variations in body-size spectra along the concentration gradients of both algal species. In terms of probability density, the ciliates generally peaked at low levels of algal concentrations (100-104 cells ml-1) in small size forms, followed by the forms with large sizes at the concentration of 105 cells ml-1 of both algal species. Bootstrapped-average analysis demonstrated a significant change in body-size spectrum when algal concentrations were higher than 104 cells ml-1. It is suggested that the body-size spectrum of the ciliates may be used to indicate the effects of harmful algal bloom.
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Affiliation(s)
| | - Guangjian Xu
- Laboratory of Microbial Ecology, Ocean University of China, Qingdao 266003, PR China.
| | - Henglong Xu
- Laboratory of Microbial Ecology, Ocean University of China, Qingdao 266003, PR China.
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Guo C, Gui Y, Bai X, Sikder MNA, Xu H. Seasonal variation in biological trait distribution of periphytic protozoa in coastal ecosystem: A baseline study for marine bioassessment. Mar Pollut Bull 2020; 160:111593. [PMID: 32861943 DOI: 10.1016/j.marpolbul.2020.111593] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 01/22/2020] [Revised: 08/18/2020] [Accepted: 08/22/2020] [Indexed: 06/11/2023]
Abstract
To reveal the seasonal variability in biological trait distribution for monitoring surveys based on periphytic protozoa, a baseline survey was carried out in a coastal region of Yellow Sea, northern China. A total of 40 slide samples were collected in a four season cycle after an exposure time period of 14 days. The results demonstrated that: (1) the community-weighted means (CWM) of algivores with large and medium sizes were high in spring and summer, while bacterivores with small size were high in autumn and winter; (2) there was a significant seasonal variation in the protozoan community functions, especially from spring/summer to autumn and winter; and (3) functional diversity indices generally peaked in spring or summer. Thus, there was a significant seasonal variation in protozoan community functions and this approach may be used to determine an optimal sampling strategy for monitoring programs in marine ecosystems.
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Affiliation(s)
- Congcong Guo
- College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China
| | - Yuying Gui
- College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China
| | - Xiaoyun Bai
- College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China
| | | | - Henglong Xu
- College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China.
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Sikder MNA, Xu G, Xu H. Seasonal variability in body-size spectrum of periphytic protozoa during colonization of artificial substrates for marine bioassessment. Mar Pollut Bull 2020; 159:111444. [PMID: 32778527 DOI: 10.1016/j.marpolbul.2020.111444] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 06/08/2020] [Revised: 06/26/2020] [Accepted: 07/05/2020] [Indexed: 06/11/2023]
Abstract
To identify the seasonal variability of body-size spectrum for monitoring surveys based on periphytic protozoa, a one-year baseline survey was carried out in a coastal region of Yellow Sea, northern China. A total of 240 glass slides were collected after immersion times of 3, 7, 10, 14, 21 and 28 days in a four season cycle, i.e., winter, spring, summer, and autumn. Body-size ranks S2 and S5 dominated the periphytic protozoan communities from the initial stage (from day 3) to the next periods in spring and autumn, while body-size ranks S7, S8 and S4 showed high variety at the equilibrium stages (from day 10) in summer and winter. The expectation analysis revealed that the samples had different patterns of departure from the anticipated body-size spectrum in each season. This study shows that an ideal sampling approach needs to be established when protozoa is used as bioindicators of marine water quality.
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Affiliation(s)
| | - Guangjian Xu
- College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China
| | - Henglong Xu
- College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China.
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49
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Portz L, Manzolli RP, Herrera GV, Garcia LL, Villate DA, Ivar do Sul JA. Marine litter arrived: Distribution and potential sources on an unpopulated atoll in the Seaflower Biosphere Reserve, Caribbean Sea. Mar Pollut Bull 2020; 157:111323. [PMID: 32658688 DOI: 10.1016/j.marpolbul.2020.111323] [Citation(s) in RCA: 4] [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: 04/08/2020] [Revised: 05/26/2020] [Accepted: 05/27/2020] [Indexed: 06/11/2023]
Abstract
The Albuquerque atoll was studied as a representative natural laboratory to explore the role of sea-based sources of marine litter. This work aimed to identify the small-scale spatial distribution of marine litter (i.e., plastic, glass, paper, and others) as well as to explore the connectivity among the atoll habitats (sand beach, water surface, and reef) to give insights of potential sources of marine litter (>5 cm), mainly plastics. Marine litter was dominated by plastic items, as expected, with an average value of 0.5 items/m2. Large microplastics (1-5 mm) were also sampled on beaches with an average value of 90 particles/m2. In the atoll inner lagoon, marine litter was also composed by plastic, mainly fragments (average 0.059 items/m3). The predominance of plastic fragments on both the sea surface and beaches of the atoll makes inferences on sources limited. However, o fishing activities and sea-based sources might be relevant since local sources are very limited.
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Affiliation(s)
- Luana Portz
- Civil and Environmental Department, Universidad de la Costa, Colombia, Calle 58 # 55 - 66, Barranquilla, Colombia.
| | - Rogério Portantiolo Manzolli
- Civil and Environmental Department, Universidad de la Costa, Colombia, Calle 58 # 55 - 66, Barranquilla, Colombia.
| | - Guido Vasquez Herrera
- Centro de Investigaciones Oceanográficas e Hidrográficas - C I O H, Sector Manzanillo Escuela Naval de Cadetes "Almirante Padilla", Cartagena, Colombia.
| | | | - Diego A Villate
- Coastal Environmental Marine Research Group, Escuela Naval de Suboficiales ARC Barranquilla, Barranquilla, Colombia
| | - Juliana A Ivar do Sul
- Leibniz Institute for Baltic Sea Research, Seestrasse 15, Warnemünde, 18119 Rostock, Germany.
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50
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Pereao O, Opeolu B, Fatoki O. Microplastics in aquatic environment: characterization, ecotoxicological effect, implications for ecosystems and developments in South Africa. Environ Sci Pollut Res Int 2020; 27:22271-22291. [PMID: 32335826 DOI: 10.1007/s11356-020-08688-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [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: 09/05/2019] [Accepted: 03/30/2020] [Indexed: 04/15/2023]
Abstract
Microplastics are small-size plastic piece scales (particles < 5 mm) in sediments and waters which interact with environment and organisms by various means. Microplastics are becoming a universal ecological concern since they may be a source of hazardous chemicals to marine organisms and environments. Recent research suggests microplastics could enable the transfer of hydrophobic aquatic pollutants or chemical additives to biota. Even though microplastic presence and interactions are recently being detected in marine and freshwater systems, the fate of microplastics is still very poorly understood. This literature review is a summary of the sources and transport of microplastics, their interactions with toxic chemicals and the methodologies for chemical quantification and characterization of microplastics. The environmental outcome and impact of microplastics in wastewater treatment plants were assessed as well as the trends and update on microplastic research in the South African aquatic ecosystem.
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Affiliation(s)
- Omoniyi Pereao
- Environmental Chemistry and Toxicology Research Group, Faculty of Applied Sciences, Cape Peninsula University of Technology, Bellville, 7535, South Africa.
| | - Beatrice Opeolu
- Environmental Chemistry and Toxicology Research Group, Faculty of Applied Sciences, Cape Peninsula University of Technology, Bellville, 7535, South Africa
| | - Olalekan Fatoki
- Department of Chemistry, Faculty of Applied Sciences, Cape Peninsula University of Technology, Bellville, 7535, South Africa
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