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Cai S, Wen Y, Zhang Q, Zeng Q, Yang Q, Gao B, Tang G, Zeng Q. Four-in-one multifunctional self-driven photoelectrocatalytic system for water purification: Organics degradation, U(VI) reduction, electricity generation and disinfection against bacteria. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 928:172353. [PMID: 38614351 DOI: 10.1016/j.scitotenv.2024.172353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Revised: 03/18/2024] [Accepted: 04/08/2024] [Indexed: 04/15/2024]
Abstract
This study addresses the energy-intensive nature of conventional wastewater treatment processes and proposes a solution through the development of a green, low-energy, and multifunctional wastewater treatment technology. The research focuses on a multifunctional self-driven photoelectrocatalytic (PEC) system, exploring its four-in-one applications in eliminating organic pollutants, reducing U(VI), generating electrical energy, and disinfecting pathogenic microorganisms. A TiO2-decorated carbon felt (CF@TiO2) cathode is synthesized to enhance interfacial charge transfer, with TiO2 coating improving surface binding sites (edge TiO and adsorbed -OH) for UO22+ adsorption and reduction. The self-driven PEC system, illuminated solely with simulated sunlight, exhibits remarkable efficiency in removing nearly 100 % of uranium within 0.5 h and simultaneously degrading 99.9 % of sulfamethoxazole (SMX) within 1.5 h, all while generating a maximum power output density (Pmax) of approximately 1065 μW·cm-2. The system demonstrates significant anti-interference properties across a wide pH range and coexisting ions. Moreover, 49.4 % of the fixed uranium on the cathode is reduced into U(IV) species, limiting its migration. The self-driven PEC system also excels in detoxifying various toxic organic compounds, including tetracycline, chlortetracycline, and oxytetracycline, and exhibits exceptional sterilization ability by disinfecting nearly 100 % of Escherichia coli within 0.5 h. This work presents an energy-saving, sustainable, and easily recyclable wastewater purification system with four-in-one capabilities, relying solely on sunlight for operation.
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Affiliation(s)
- Sixuan Cai
- School of Public Health, University of South China, Hengyang, Hunan 421001, China
| | - Yanjun Wen
- School of Resources & Environment and Safety Engineering, University of South China, Hengyang 421001, PR China
| | - Qingyan Zhang
- School of Resources & Environment and Safety Engineering, University of South China, Hengyang 421001, PR China
| | - Qingming Zeng
- School of Resources & Environment and Safety Engineering, University of South China, Hengyang 421001, PR China
| | - Qingqing Yang
- School of Resources & Environment and Safety Engineering, University of South China, Hengyang 421001, PR China
| | - Beibei Gao
- School of Resources & Environment and Safety Engineering, University of South China, Hengyang 421001, PR China
| | - Guolong Tang
- School of Resources & Environment and Safety Engineering, University of South China, Hengyang 421001, PR China
| | - Qingyi Zeng
- School of Public Health, University of South China, Hengyang, Hunan 421001, China; School of Resources & Environment and Safety Engineering, University of South China, Hengyang 421001, PR China.
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2
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Xu Q, Liu S, Lou S, Tu J, Li X, Jin Y, Yin W, Radnaeva LD, Nikitina E, Makhinov AN, Araruna JT, Fedorova IV. Typical antibiotic resistance genes and their association with driving factors in the coastal areas of Yangtze River Estuary. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024:10.1007/s11356-024-33198-w. [PMID: 38607491 DOI: 10.1007/s11356-024-33198-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Accepted: 03/30/2024] [Indexed: 04/13/2024]
Abstract
The massive use of antibiotics has led to the escalation of microbial resistance in aquatic environment, resulting in an increasing concern regarding antibiotic resistance genes (ARGs), posing a serious threat to ecological safety and human health. In this study, surface water samples were collected at eight sampling sites along the Yangtze River Estuary. The seasonal and spatial distribution patterns of 10 antibiotics and target genes in two major classes (sulfonamides and tetracyclines) were analyzed. The findings indicated a high prevalence of sulfonamide and tetracycline resistance genes along the Yangtze River Estuary. Kruskal-Wallis analysis revealed significant seasonal variations in the abundance of all target genes. The accumulation of antibiotic resistance genes in the coastal area of the Yangtze River Estuary can be attributed to the influence of urban instream runoff and the discharge of effluents from wastewater treatment plants. ANISOM analysis indicated significant seasonal differences in the microbial community structure. VPA showed that environmental factors contribute the most to ARG variation. PLS-PM demonstrate that environmental factors and microbial communities pose direct effect to ARG variation. Analysis of driving factors influencing ARGs in this study may shed new insights into the mechanism of the maintenance and propagation of ARGs.
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Affiliation(s)
- Qiuhong Xu
- Department of Hydraulic Engineering, College of Civil Engineering, Tongji University, Shanghai, China
| | - Shuguang Liu
- Department of Hydraulic Engineering, College of Civil Engineering, Tongji University, Shanghai, China
- Key Laboratory of Yangtze River Water Environment, Ministry of Education, Tongji University, Shanghai, China
| | - Sha Lou
- Department of Hydraulic Engineering, College of Civil Engineering, Tongji University, Shanghai, China.
- Key Laboratory of Yangtze River Water Environment, Ministry of Education, Tongji University, Shanghai, China.
| | - Junbiao Tu
- State Key Laboratory of Marine Geology, Tongji University, Shanghai, China
| | - Xin Li
- Department of Hydraulic Engineering, College of Civil Engineering, Tongji University, Shanghai, China
| | - Yuchen Jin
- Department of Hydraulic Engineering, College of Civil Engineering, Tongji University, Shanghai, China
| | - Wenjun Yin
- State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, China
| | - Larisa Dorzhievna Radnaeva
- Laboratory of Chemistry of Natural Systems, Baikal Institute of Nature Management of Siberian Branch of the Russian Academy of Sciences, Republic of Buryatia, Russia
| | - Elena Nikitina
- Laboratory of Chemistry of Natural Systems, Baikal Institute of Nature Management of Siberian Branch of the Russian Academy of Sciences, Republic of Buryatia, Russia
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Chao J, Li J, Kong M, Shao K, Tang X. Bacterioplankton diversity and potential health risks in volcanic lakes: A study from Arxan Geopark, China. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 342:123058. [PMID: 38042466 DOI: 10.1016/j.envpol.2023.123058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2023] [Revised: 10/29/2023] [Accepted: 11/26/2023] [Indexed: 12/04/2023]
Abstract
Bacterioplankton play a vital role in maintaining the functions and services of lake ecosystems. Understanding the diversity and distribution patterns of bacterioplankton, particularly the presence of potential pathogenic bacterial communities, is crucial for safeguarding human health. In this study, we employed 16S rRNA gene amplicon sequencing to investigate the diversity and geographic patterns of bacterioplankton communities, as well as potential pathogens, in eight volcanic lakes located in the Arxan UNESCO Global Geopark (in the Greater Khingan Mountains of China). Our results revealed that the bacterial communities primarily comprised Bacteroidota (45.3%), Proteobacteria (33.1%), and Actinobacteria (9.0%) at the phylum level. At the genus level, prominent taxa included Flavobacterium (31.5%), Acinetobacter (11.0%), Chryseobacterium (7.9%), and CL500-29 marine group (5.6%). Among the bacterioplankton, we identified 34 pathogen genera (165 amplicon sequence variants [ASVs]), with Acinetobacter (59.8%), Rahnella (18.3%), Brevundimonas (9.6%), and Pseudomonas (5.8%) being the most dominant. Our findings demonstrated distinct biogeographic patterns in the bacterial communities at the local scale, driven by a combination of dispersal limitation and environmental factors influenced by human activities. Notably, approximately 15.3% of the bacterioplankton reads in the Arxan lakes were identified as potential pathogens, underscoring the potential risks to public health in these popular tourist destinations. This study provides the first comprehensive insight into the diversity of bacterioplankton in mountain lake ecosystems affected by high tourist activity, laying the groundwork for effective control measures against bacterial pathogens.
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Affiliation(s)
- Jianying Chao
- Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment, Nanjing, 210042, China
| | - Jian Li
- Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment, Nanjing, 210042, China
| | - Ming Kong
- Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment, Nanjing, 210042, China
| | - Keqiang Shao
- Taihu Laboratory for Lake Ecosystem Research, State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing, 210008, China
| | - Xiangming Tang
- Taihu Laboratory for Lake Ecosystem Research, State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing, 210008, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100049, China.
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Margenat H, Guasch H, Le Roux G, Vila-Gispert A, Cornejo D, Chouache L, Martí E, Sonke JE, El Zrelli RB, Laffont L, Hansson SV. Distinct dynamics in mountain watersheds: Exploring mercury and microplastic pollution-Unraveling the influence of atmospheric deposition, human activities, and hydrology. ENVIRONMENTAL RESEARCH 2024; 242:117760. [PMID: 38016499 DOI: 10.1016/j.envres.2023.117760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Revised: 11/20/2023] [Accepted: 11/21/2023] [Indexed: 11/30/2023]
Abstract
The intensification of human activities all around the globe has led to the spread of micropollutants in high-mountain freshwater environments. We therefore aimed to assess the geospatial distribution and determine the potential sources of (total-) mercury (THg) and microplastics (MPs) in mountain freshwater ecosystems. To do so, we analyzed THg and MP concentrations in brown trout, biofilm, and sediments from lotic and lentic ecosystems in the Pyrenees - all subjected to different types of human pressure. Additionally, we assessed the potential impacts of these pollutants on fish, and explored the bioindication capacity of brown trout (Salmo trutta fario) and biofilm regarding THg and MP pollution. For the first time, we measured concentrations of MPs trapped in the matrix of freshwater biofilm. Our results suggest that THg in the Pyrenees might be explained by both legacy (regional) and distant sources, in combination with environmental characteristics such as the presence of peatlands or streamwater physicochemistry, while MPs in fish are linked to recent local pollution sources such as single-use plastics. In contrast, MPs in biofilm matrix and sediments indicate a combination of distant (i.e., atmospheric deposition) and recent local pollution sources. Moreover, hydrodynamics and plastic density likely control MP distribution in rivers. Based on Fulton's condition factor, we also found that higher THg concentrations caused a negative impact on fish health (K < 1), while no impact of MPs could be seen. Therefore, we suggest that brown trout and biofilm can serve as bioindicators of atmospheric deposition of THg in high-altitude lakes and that biofilm is a reliable bioindicator to assess MP pollution in remote environments. Brown trout may also act as a bioindicator of MP pollution, but only efficiently in more polluted areas.
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Affiliation(s)
- Henar Margenat
- Laboratoire écologie fonctionnelle et environnement (LEFE), Université Paul Sabatier, CNRS, Toulouse, France.
| | - Helena Guasch
- Centre d'Estudis Avançats de Blanes, CSIC, Blanes, Spain
| | - Gaël Le Roux
- Laboratoire écologie fonctionnelle et environnement (LEFE), Université Paul Sabatier, CNRS, Toulouse, France
| | - Anna Vila-Gispert
- GRECO, Institute of Aquatic Ecology, Universitat de Girona, Girona, Spain
| | | | - Linda Chouache
- Laboratoire écologie fonctionnelle et environnement (LEFE), Université Paul Sabatier, CNRS, Toulouse, France
| | - Eugènia Martí
- Centre d'Estudis Avançats de Blanes, CSIC, Blanes, Spain
| | - Jeroen E Sonke
- Géosciences Environnement Toulouse, CNRS/-IRD/Université Paul Sabatier, Toulouse, France
| | | | - Laure Laffont
- Géosciences Environnement Toulouse, CNRS/-IRD/Université Paul Sabatier, Toulouse, France
| | - Sophia V Hansson
- Laboratoire écologie fonctionnelle et environnement (LEFE), Université Paul Sabatier, CNRS, Toulouse, France
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Elumalai S, Prabhu K, Selvan GP, Ramasamy P. Review on heavy metal contaminants in freshwater fish in South India: current situation and future perspective. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:119594-119611. [PMID: 37945961 DOI: 10.1007/s11356-023-30659-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Accepted: 10/20/2023] [Indexed: 11/12/2023]
Abstract
The primary natural resource we use in our daily lives for a variety of activities is freshwater for drinking and various developmental goals. Furthermore, the pace of human population increase worldwide is rising rapidly and has a great impact on the Earth's natural resources. Natural water quality has diminished owing to various anthropogenic activities. Water is crucial to the life cycle. On the other hand, chemical and agricultural industries pollute heavy metals. Acute and chronic diseases caused by heavy metals, such as slow metabolism and damage to the gills and epithelial layer of fish species, are divided into two categories. Pollutants can also harm liver tissues and result in ulceration as well as diseases such as fin rot, tail rot, and gill disease. The most prevalent heavy metals are As, Cr, Pb, and Hg, which are systemic toxicants that affect human health. These metals are categorized as carcinogens by the US Environmental Protection Agency and the worldwide agency for cancer research because they cause organ damage even at low exposure levels. The focus of the current study is to review various freshwater sources of heavy metal pollution.
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Affiliation(s)
- Saranya Elumalai
- Department of Biotechnology, Vinayaka Missions Kirupananda Variyar Engineering College, Salem, Tamil Nadu, 636308, India
| | - Kolandhasamy Prabhu
- Department of Marine Science, Bharathidasan University, Tiruchirappalli, Tamil Nadu, 620024, India
| | - Gopi Palani Selvan
- Department of Oceanography & Coastal Area Studies, Alagappa University, Thondi Campus, Thondi, Tamil Nadu, 623409, India
| | - Pasiyappazham Ramasamy
- Department of Physiology, Basic Medical Sciences, Saveetha Dental College & Hospitals, Saveetha Institute of Medical and Technical Sciences (SIMATS), Saveetha University, Chennai, Tamil Nadu, 600077, India.
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Sentenac H, Loyau A, Zoccarato L, Jassey VEJ, Grossart HP, Schmeller DS. Biofilm community composition is changing in remote mountain lakes with a relative increase in potentially toxigenic algae. WATER RESEARCH 2023; 245:120547. [PMID: 37708771 DOI: 10.1016/j.watres.2023.120547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 08/28/2023] [Accepted: 08/29/2023] [Indexed: 09/16/2023]
Abstract
Mountain lakes provide clear drinking water to humankind but are strongly impacted by global change. Benthic biofilms are crucial for maintaining water quality in these oligotrophic lakes, yet little is known about the effects of global change on mountain biofilm communities. By combining analyses of metabarcoding data on 16S and 18S rRNA genes with climatic and environmental data, we investigated global change effects on the composition of biofilm prokaryotic and micro-eukaryotic assemblages in a five-year monitoring program of 26 Pyrenean lakes (2016-2020). Using time-decay relationships and within-lake dissimilarity modelling, we show that the composition of both prokaryotic and micro-eukaryotic biofilm communities significantly shifted and their biodiversity declined from 2016 to 2020. In particular, analyses of temporal trends with linear mixed models indicated an increase in the richness and relative abundance of cyanobacteria, including potentially toxigenic cyanobacteria, and a concomitant decrease in diatom richness and relative abundance. While these compositional shifts may be due to several drivers of global change acting simultaneously on mountain lake biota, water pH and hardness were, from our data, the main environmental variables associated with changes for both prokaryotic and micro-eukaryotic assemblages. Water pH and hardness increased in our lakes over the study period, and are known to increase in Pyrenean lakes due to the intensification of rock weathering as a result of climate change. Given predicted climate trends and if water pH and hardness do cause some changes in benthic biofilms, those changes might be further exacerbated in the future. Such biofilm compositional shifts may induce cascading effects in mountain food webs, threatening the resilience of the entire lake ecosystem. The rise in potentially toxigenic cyanobacteria also increases intoxication risks for humans, pets, wild animals, and livestock that use mountain lakes. Therefore, our study has implications for water quality, ecosystem health, public health, as well as local economies (pastoralism, tourism), and highlights the possible impacts of global change on mountain lakes.
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Affiliation(s)
- Hugo Sentenac
- Laboratoire Ecologie Fonctionnelle et Environnement, CNRS, INPT, UPS, Université de Toulouse, Toulouse, France.
| | - Adeline Loyau
- Laboratoire Ecologie Fonctionnelle et Environnement, CNRS, INPT, UPS, Université de Toulouse, Toulouse, France
| | - Luca Zoccarato
- Department of Plankton and Microbial Ecology, Leibniz-Institute of Freshwater Ecology and Inland Fisheries (IGB), Zur alten Fischerhütte 2, Stechlin 16775, Germany; Institute of Computational Biology, University of Natural Resources and Life Sciences (BOKU), Muthgasse 18, Vienna 1190, Austria; Core Facility Bioinformatics, University of Natural Resources and Life Sciences (BOKU), Muthgasse 18, Vienna 1190, Austria
| | - Vincent E J Jassey
- Laboratoire Ecologie Fonctionnelle et Environnement, CNRS, INPT, UPS, Université de Toulouse, Toulouse, France
| | - Hans-Peter Grossart
- Department of Plankton and Microbial Ecology, Leibniz-Institute of Freshwater Ecology and Inland Fisheries (IGB), Zur alten Fischerhütte 2, Stechlin 16775, Germany; Institute of Biochemistry and Biology, Potsdam University, Maulbeerallee 2, Potsdam 14469 Germany
| | - Dirk S Schmeller
- Laboratoire Ecologie Fonctionnelle et Environnement, CNRS, INPT, UPS, Université de Toulouse, Toulouse, France
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Chukwuka AV, Ogbeide O, Otomo PV. Trend relationship between mountain normalized difference vegetation index (NDVI) and aerosol optical depth (AOD) across two decades: implication for water quality within the Lesotho Highlands, Drakensberg, South Africa. ENVIRONMENTAL MONITORING AND ASSESSMENT 2023; 195:584. [PMID: 37072567 DOI: 10.1007/s10661-023-11110-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Accepted: 03/09/2023] [Indexed: 05/03/2023]
Abstract
There are growing concerns on contribution of vegetation dynamics to atmospheric turbidity and quality of regional water towers. The study sought to determine the trends in the MODIS/TERRA-derived normalized difference vegetation index (NDVI) and aerosol optical depth (AOD) for Lesotho Highland over 2000-2020. The predictive relationship between the two variables was also examined using regression analysis. Irrespective of yearly AOD patterns, the AOD showed biphasic patterns peaking between mid-winter to early spring (July-October) (highest) and autumn (Feb-April) (next highest), and lowest in the summer (Nov-January). The monthly NDVI was largest in January-March (summer-early fall) with smaller values in winter and spring. This seasonality can be related to the peak of anthropogenic biomass combustion during the winter and strong winds during the spring and early summer. The AOD relationship with NDVI showed quadratic patterns peaking and plunging with changes in season. About 30-80% (R2 = 0.3-0.8%) changes in annual AOD from 2000 to 2020 were explainable by the dynamics of NDVI indicating that increased NDVI contributes to about a 50% decrease in AOD in the Lesotho Highlands. However, an outlier trend was observed in 2007 (R2 = 13%). Incidences of high AOD in months of high NDVI may be indicative of traveling aerosols, i.e., aerosols from non-local sources/activity. On the other hand, high AOD in months of low NDVI implicates local aerosol sources. Trend relationship studies on vegetation loss and AOD in mountain areas of other regions could improve knowledge of contaminant dynamics and risk implications for downstream populations.
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Affiliation(s)
| | - Ozekeke Ogbeide
- Department of Environmental Management and Toxicology, University of Benin, Benin City, Nigeria
| | - Patricks Voua Otomo
- Department of Zoology and Entomology, University of the Free State, Bloemfontein, South Africa
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Sotomayor G, Romero J, Ballari D, Vázquez RF, Ramírez-Morales I, Hampel H, Galarza X, Montesinos B, Forio MAE, Goethals PLM. Occurrence Prediction of Riffle Beetles (Coleoptera: Elmidae) in a Tropical Andean Basin of Ecuador Using Species Distribution Models. BIOLOGY 2023; 12:biology12030473. [PMID: 36979164 PMCID: PMC10045380 DOI: 10.3390/biology12030473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 03/16/2023] [Accepted: 03/16/2023] [Indexed: 03/30/2023]
Abstract
Genera and species of Elmidae (riffle beetles) are sensitive to water pollution; however, in tropical freshwater ecosystems, their requirements regarding environmental factors need to be investigated. Species distribution models (SDMs) were established for five elmid genera in the Paute river basin (southern Ecuador) using the Random Forest (RF) algorithm considering environmental variables, i.e., meteorology, land use, hydrology, and topography. Each RF-based model was trained and optimised using cross-validation. Environmental variables that explained most of the Elmidae spatial variability were land use (i.e., riparian vegetation alteration and presence/absence of canopy), precipitation, and topography, mainly elevation and slope. The highest probability of occurrence for elmids genera was predicted in streams located within well-preserved zones. Moreover, specific ecological niches were spatially predicted for each genus. Macrelmis was predicted in the lower and forested areas, with high precipitation levels, towards the Amazon basin. Austrelmis was predicted to be in the upper parts of the basin, i.e., páramo ecosystems, with an excellent level of conservation of their riparian ecosystems. Austrolimnius and Heterelmis were also predicted in the upper parts of the basin but in more widespread elevation ranges, in the Heterelmis case, and even in some areas with a medium level of anthropisation. Neoelmis was predicted to be in the mid-region of the study basin in high altitudinal streams with a high degree of meandering. The main findings of this research are likely to contribute significantly to local conservation and restoration efforts being implemented in the study basin and could be extrapolated to similar eco-hydrological systems.
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Affiliation(s)
- Gonzalo Sotomayor
- Department of Animal Sciences and Aquatic Ecology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000 Ghent, Belgium
- Departamento de Ingeniería Civil, Facultad de Ingeniería, Universidad de Cuenca, Av. 12 de abril S/N, Cuenca, Azuay 010203, Ecuador
| | - Jorge Romero
- Instituto de Estudios del Régimen Seccional del Ecuador (IERSE), Facultad de Ciencia y Tecnología, Universidad del Azuay, Cuenca 010204, Ecuador
| | - Daniela Ballari
- Instituto de Estudios del Régimen Seccional del Ecuador (IERSE), Facultad de Ciencia y Tecnología, Universidad del Azuay, Cuenca 010204, Ecuador
| | - Raúl F Vázquez
- Departamento de Ingeniería Civil, Facultad de Ingeniería, Universidad de Cuenca, Av. 12 de abril S/N, Cuenca, Azuay 010203, Ecuador
- Laboratorio de Ecología Acuática (LEA), Facultad de Ciencias Químicas, Universidad de Cuenca, Av. 12 de abril S/N, Cuenca 010203, Ecuador
| | | | - Henrietta Hampel
- Laboratorio de Ecología Acuática (LEA), Facultad de Ciencias Químicas, Universidad de Cuenca, Av. 12 de abril S/N, Cuenca 010203, Ecuador
| | - Xavier Galarza
- Instituto de Estudios del Régimen Seccional del Ecuador (IERSE), Facultad de Ciencia y Tecnología, Universidad del Azuay, Cuenca 010204, Ecuador
| | - Bolívar Montesinos
- Ministerio del Ambiente, Agua y Transición Ecológica, Dirección Zonal 6, Cuenca 010104, Ecuador
| | - Marie Anne Eurie Forio
- Department of Animal Sciences and Aquatic Ecology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000 Ghent, Belgium
| | - Peter L M Goethals
- Department of Animal Sciences and Aquatic Ecology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000 Ghent, Belgium
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Guevara EA, Bello C, Poveda C, McFadden IR, Schleuning M, Pellissier L, Graham CH. Hummingbird community structure and nectar resources modulate the response of interspecific competition to forest conversion. Oecologia 2023; 201:761-770. [PMID: 36754882 PMCID: PMC10038955 DOI: 10.1007/s00442-023-05330-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Accepted: 01/26/2023] [Indexed: 02/10/2023]
Abstract
On-going land-use change has profound impacts on biodiversity by filtering species that cannot survive in disturbed landscapes and potentially altering biotic interactions. In particular, how land-use change reshapes biotic interactions remains an open question. Here, we used selectivity experiments with nectar feeders in natural and converted forests to test the direct and indirect effects of land-use change on resource competition in Andean hummingbirds along an elevational gradient. Selectivity was defined as the time hummingbirds spent at high resource feeders when feeders with both low and high resource values were offered in the presence of other hummingbird species. Selectivity approximates the outcome of interspecific competition (i.e., the resource intake across competing species); in the absence of competition, birds should exhibit higher selectivity. We evaluated the indirect effect of forest conversion on selectivity, as mediated by morphological dissimilarity and flower resource abundance, using structural equation models. We found that forest conversion influenced selectivity at low and mid-elevations, but the influence of morphological dissimilarity and resource availability on selectivity varied between these elevations. At mid-elevation, selectivity was more influenced by the presence of morphologically similar competitors than by resource abundance while at low-elevation resource abundance was a more important predictor of selectivity. Our results suggest that selectivity is influenced by forest conversion, but that the drivers of these changes vary across elevation, highlighting the importance of considering context-dependent variation in the composition of resources and competitors when studying competition.
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Affiliation(s)
- Esteban A Guevara
- Biodiversity and Conservation Biology, Swiss Federal Research Institute WSL, Zürcherstrasse 111, 8903, Birmensdorf, Switzerland.
- Área de Investigación y Monitoreo de Avifauna, Aves y Conservación, BirdLife in Ecuador, Nuño de Valderrama OE7 y Av, Mariana de Jesús, Quito, Ecuador.
- Landscape Ecology Group, Department of Environmental Systems Science, Institute of Terrestrial Ecosystems, ETH Zürich, 8092, Zurich, Switzerland.
| | - Carolina Bello
- Biodiversity and Conservation Biology, Swiss Federal Research Institute WSL, Zürcherstrasse 111, 8903, Birmensdorf, Switzerland
| | - Cristian Poveda
- Área de Investigación y Monitoreo de Avifauna, Aves y Conservación, BirdLife in Ecuador, Nuño de Valderrama OE7 y Av, Mariana de Jesús, Quito, Ecuador
| | - Ian R McFadden
- Biodiversity and Conservation Biology, Swiss Federal Research Institute WSL, Zürcherstrasse 111, 8903, Birmensdorf, Switzerland
- Landscape Ecology Group, Department of Environmental Systems Science, Institute of Terrestrial Ecosystems, ETH Zürich, 8092, Zurich, Switzerland
| | - Matthias Schleuning
- Senckenberg Biodiversity and Climate Research Centre (SBiK-F), Senckenberganlage 25, Main, 60325, Frankfurt am Main, Germany
| | - Loïc Pellissier
- Biodiversity and Conservation Biology, Swiss Federal Research Institute WSL, Zürcherstrasse 111, 8903, Birmensdorf, Switzerland
- Landscape Ecology Group, Department of Environmental Systems Science, Institute of Terrestrial Ecosystems, ETH Zürich, 8092, Zurich, Switzerland
| | - Catherine H Graham
- Biodiversity and Conservation Biology, Swiss Federal Research Institute WSL, Zürcherstrasse 111, 8903, Birmensdorf, Switzerland
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Rodriguez R, Palma MS, Bhandari D, Tian F. Electrodeposition of Ag/ZIF-8-Modified Membrane for Water Remediation. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:2291-2300. [PMID: 36716236 PMCID: PMC9933538 DOI: 10.1021/acs.langmuir.2c02947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Metal-organic framework (MOF)-based membranes have been widely used in gas and liquid separation due to their porous structures and tunable compositions. Depending on the guest components, heterostructured MOFs can exhibit multiple functions. In the present work, we report a facile and rapid preparation of zeolitic imidazolate framework-8 (ZIF-8) and silver nanoparticle incorporated ZIF-8 (Ag/ZIF-8)-based membranes on stainless-steel mesh (SSM) through a "green" electrodeposition method. The SSM was first coated with a Zn-plated layer which contains mainly zinc hydroxide nitrate (Zn5(OH)8(NO3)2·2H2O) with a "leaf-like" morphology, providing anchoring points for the deposition of ZIF-8 and Ag/ZIF-8. It takes only 10 min to prepare a uniform coating of Zn5(OH)8(NO3)2·2H2O in aqueous conditions without the use of a strong base; this is by far the most efficient way of making zinc hydroxide nitrate nanocrystals. Following a similar electrodeposition approach, ZIF-8 and Ag/ZIF-8-coated SSM can be prepared within 20 min by applying a small current. The encapsulation of Ag does not alter the chemical composition nor the crystal structure of ZIF-8. The resulting ZIF-8 and Ag/ZIF-8-coated SSM have been tested for their effectiveness for rhodamine B dye removal in a fast vacuum filtration setting. Additionally, growth of E. coli was significantly inhibited after overnight incubation with Ag/ZIF-8-coated SSM. Overall, we demonstrate a fast synthesis procedure to make ZIF-8 and Ag/ZIF-8-coated SSM membranes for organic dye removal with excellent antimicrobial activity.
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11
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Varg JE, Svanbäck R. Multi stress system: Microplastics in freshwater and their effects on host microbiota. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 856:159106. [PMID: 36183774 DOI: 10.1016/j.scitotenv.2022.159106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 09/24/2022] [Accepted: 09/24/2022] [Indexed: 06/16/2023]
Abstract
Microplastics are persistent and complex contaminants that have recently been found in freshwater systems, raising concerns about their presence in aquatic organisms. Plastics tend to be seen as an inert material; however, it is not well known if exposure to plastics for a prolonged time, in combination with organic chemicals, causes organism mortality. Ingestion of microplastics in combination with another pollutant may affect a host organism's fitness by altering the host microbiome. In this study, we investigated how microplastics interact with other pollutants in this multi-stress system, and whether they have a synergistic impact on the mortality of an aquatic organism and its microbiome. We used wild water boatmen Hemiptera (Corixidae) found at lake Erken located in east-central Sweden in a fully factorial two-way microcosm experiment designed with polystyrene microspheres and a commonly used detergent. The microplastic-detergent interaction is manifested as a significant increase in mortality compared to the other treatments at 48 h of exposure. The diversity of the microbial communities in the water was significantly affected by the combined treatment of microplastics and the detergent while the microbial communities in the host were affected by the treatments with microplastics and the detergent alone. Changes in relative abundance in Gammaproteobacteria (family Enterobacteriaceae), were observed in the perturbed treatments mostly associated with the presence of the detergent. This confirms that microplastics can interact with detergents having toxic effects on wild water boatmen. Furthermore, microplastics may impact wild organisms via changes in their microbial communities.
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Affiliation(s)
- Javier Edo Varg
- Department of Ecology and Genetics, Section of Animal Ecology, Evolutionary Biology Centre, Uppsala University, Norbyvägen 18D, 75236 Uppsala, Sweden; Department of Aquatic Sciences and Assessment, Section for Ecology and Biodiversity, Swedish University of Agricultural Sciences, Undervisningsplan 7H, 756 51 Uppsala, Sweden.
| | - Richard Svanbäck
- Department of Ecology and Genetics, Section of Animal Ecology, Evolutionary Biology Centre, Uppsala University, Norbyvägen 18D, 75236 Uppsala, Sweden
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12
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Schmeller DS, Urbach D, Bates K, Catalan J, Cogălniceanu D, Fisher MC, Friesen J, Füreder L, Gaube V, Haver M, Jacobsen D, Le Roux G, Lin YP, Loyau A, Machate O, Mayer A, Palomo I, Plutzar C, Sentenac H, Sommaruga R, Tiberti R, Ripple WJ. Scientists' warning of threats to mountains. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 853:158611. [PMID: 36087665 DOI: 10.1016/j.scitotenv.2022.158611] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Revised: 09/04/2022] [Accepted: 09/04/2022] [Indexed: 06/15/2023]
Abstract
Mountains are an essential component of the global life-support system. They are characterized by a rugged, heterogenous landscape with rapidly changing environmental conditions providing myriad ecological niches over relatively small spatial scales. Although montane species are well adapted to life at extremes, they are highly vulnerable to human derived ecosystem threats. Here we build on the manifesto 'World Scientists' Warning to Humanity', issued by the Alliance of World Scientists, to outline the major threats to mountain ecosystems. We highlight climate change as the greatest threat to mountain ecosystems, which are more impacted than their lowland counterparts. We further discuss the cascade of "knock-on" effects of climate change such as increased UV radiation, altered hydrological cycles, and altered pollution profiles; highlighting the biological and socio-economic consequences. Finally, we present how intensified use of mountains leads to overexploitation and abstraction of water, driving changes in carbon stock, reducing biodiversity, and impacting ecosystem functioning. These perturbations can provide opportunities for invasive species, parasites and pathogens to colonize these fragile habitats, driving further changes and losses of micro- and macro-biodiversity, as well further impacting ecosystem services. Ultimately, imbalances in the normal functioning of mountain ecosystems will lead to changes in vital biological, biochemical, and chemical processes, critically reducing ecosystem health with widespread repercussions for animal and human wellbeing. Developing tools in species/habitat conservation and future restoration is therefore essential if we are to effectively mitigate against the declining health of mountains.
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Affiliation(s)
| | - Davnah Urbach
- Global Mountain Biodiversity Assessment, Institute of Plant Sciences, University of Bern, Bern, Switzerland.
| | - Kieran Bates
- Department of Zoology, University of Oxford, 11a Mansfield Road, Oxford OX1 3SZ, UK; MRC Centre for GlobaI Infectious Disease Analysis, Department of Infectious Disease Epidemiology, School of Public Health, Imperial College London, London W2 1PG, UK; Institute of Zoology, Zoological Society of London, Regent's Park, London NW1 4RY, UK.
| | - Jordi Catalan
- CREAF Campus UAB, Edifici C, Cerdanyola Del Valles, Spain; CSIC, Campus UAB, Cerdanyola Del Valles, Spain.
| | - Dan Cogălniceanu
- Ovidius University Constanţa, Faculty of Natural Sciences and Agricultural Sciences, Al. Universităţii 1, 900470 Constanţa, Romania
| | - Matthew C Fisher
- MRC Centre for GlobaI Infectious Disease Analysis, Department of Infectious Disease Epidemiology, School of Public Health, Imperial College London, London W2 1PG, UK.
| | - Jan Friesen
- Helmholtz Centre for Environmental Research - UFZ, Leipzig, Germany.
| | - Leopold Füreder
- Department of Ecology, University of Innsbruck, Technikerstr. 25, 6020 Innsbruck, Austria.
| | - Veronika Gaube
- University of Natural Resources and Life Sciences, Vienna, Department of Economics and Social Sciences, Institute of Social Ecology (SEC), Schottenfeldgasse 29, Austria.
| | - Marilen Haver
- LEFE, Université de Toulouse, INPT, UPS, Toulouse, France.
| | - Dean Jacobsen
- Freshwater Biological Section, Dept. Biology, University of Copenhagen, Denmark.
| | - Gael Le Roux
- LEFE, Université de Toulouse, INPT, UPS, Toulouse, France.
| | - Yu-Pin Lin
- Department of Bioenvironmental Systems Engineering, National Taiwan University, Taiwan.
| | - Adeline Loyau
- LEFE, Université de Toulouse, INPT, UPS, Toulouse, France.
| | - Oliver Machate
- Helmholtz Centre for Environmental Research - UFZ, Leipzig, Germany
| | - Andreas Mayer
- University of Natural Resources and Life Sciences, Vienna, Department of Economics and Social Sciences, Institute of Social Ecology (SEC), Schottenfeldgasse 29, Austria.
| | - Ignacio Palomo
- Univ. Grenoble-Alpes, IRD, CNRS, Grenoble INP*, IGE, 38000 Grenoble, France.
| | - Christoph Plutzar
- University of Natural Resources and Life Sciences, Vienna, Department of Economics and Social Sciences, Institute of Social Ecology (SEC), Schottenfeldgasse 29, Austria.
| | - Hugo Sentenac
- LEFE, Université de Toulouse, INPT, UPS, Toulouse, France.
| | - Ruben Sommaruga
- Department of Ecology, University of Innsbruck, Technikerstr. 25, 6020 Innsbruck, Austria.
| | - Rocco Tiberti
- Department of Earth and Environmental Sciences - DSTA, University of Pavia, Via Ferrata 9, 27100 Pavia, Italy.
| | - William J Ripple
- Department of Forest Ecosystems and Society, Oregon State University, Corvallis, OR, USA.
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13
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Ocampo M, Chuirazzi C, Takahashi MK. The effects of road salt (NaCl), predation, and competition on the growth and community interactions of spotted salamanders (Ambystoma maculatum) and wood frogs (Lithobates sylvaticus). ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 315:120349. [PMID: 36206892 DOI: 10.1016/j.envpol.2022.120349] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 09/29/2022] [Accepted: 09/30/2022] [Indexed: 06/16/2023]
Abstract
Road deicing salts are frequently used in northern regions of the world during the winter and early spring months. As a result, a significant portion of road runoff into surrounding aquatic habitats contains road deicing salts. Previous studies found road salt contaminations in vernal pools that pond-breeding amphibians commonly use, including spotted salamanders (Ambystoma maculatum) and wood frogs (Lithobates sylvaticus). Studies have examined the impact of road salt on both amphibian species, but to our knowledge no previous studies have examined how road salt impacts the interspecific competition between both amphibians. We hypothesized that road salt would negatively impact growth and survivorship of both amphibian species. During the spring and summer of 2017, we conducted an outdoor mesocosm experiment in which we created eight experimental conditions with three main factors: presence/absence of NaCl (1000 mg/L Cl-), presence/absence of interspecific competition between the two amphibian species (A. maculatum and L. sylvaticus), and presence/absence of predatory dragonfly larvae (Family Libellulidae). Our experiment revealed that salt delayed hatching and increased deformity in spotted salamander hatchlings. Additionally, salt reduced salamander survivorship by 62% and frog survivorship by 30%. Wood frog tadpoles and road salt interacted to diminish salamander survivorship a further 80% beyond salt alone, likely through an increase in interspecific competition. Road salt increased the larval period of salamanders and decreased the proportion metamorphosed by the end of the experiment. Dragonfly larvae reduced salamander survivorship by 35%, whereas they increased wood frog tadpole development rates. Dragonfly larvae and salt interacted to alter tadpole denticle size, with salt negating the impact of dragonfly larvae. Thus, we found that salt interfered with aquatic predatory chemical cues. Overall, the results of this study suggest that management strategies should be implemented in order to reduce the impact of road salts on freshwater aquatic ecosystems.
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Affiliation(s)
- Melissa Ocampo
- Department of Biology, Bucknell University, Lewisburg, PA, 17837, USA.
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14
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Iniesto M, Moreira D, Benzerara K, Reboul G, Bertolino P, Tavera R, López‐García P. Planktonic microbial communities from microbialite-bearing lakes sampled along a salinity-alkalinity gradient. LIMNOLOGY AND OCEANOGRAPHY 2022; 67:2718-2733. [PMID: 37064594 PMCID: PMC10087431 DOI: 10.1002/lno.12233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/20/2022] [Revised: 07/12/2022] [Accepted: 09/04/2022] [Indexed: 06/19/2023]
Abstract
Continental freshwater systems are particularly vulnerable to environmental variation. Climate change-induced desertification and the anthropogenic exploitation of hydric resources result in the progressive evaporation and salinization of inland water bodies in many areas of the globe. However, how this process impacts microbial communities and their activities in biogeochemical cycles is poorly known. Here, we take a space-for-time substitution approach and characterize the prokaryotic and eukaryotic microbial communities of two planktonic cell-size fractions (0.2-5 μm and 5-30 μm) from lakes of diverse trophic levels sampled along a salinity-alkalinity gradient located in the Trans-Mexican Volcanic Belt (TMVB). We applied a 16S/18S rRNA gene metabarcoding strategy to determine the microbial community composition of 54 samples from 12 different lakes, from the low-salinity lake Zirahuén to the hypersaline residual ponds of Rincón de Parangueo. Except for systems at both extremes of the salinity gradient, most lakes along the evaporation trend bear actively forming microbialites, which harbor microbial communities clearly distinct from those of plankton. Several lakes were sampled in winter and late spring and the crater lakes Alchichica and Atexcac were sampled across the water column. Physicochemical parameters related to salinity-alkalinity were the most influential drivers of microbial community structure whereas trophic status, depth, or season were less important. Our results suggest that climate change and anthropogenic-induced hydric deficit could significantly affect microbial communities, potentially altering ecosystem functioning.
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Affiliation(s)
- Miguel Iniesto
- Ecologie Systématique Evolution, CNRSUniversité Paris‐Saclay, AgroParisTechOrsayFrance
| | - David Moreira
- Ecologie Systématique Evolution, CNRSUniversité Paris‐Saclay, AgroParisTechOrsayFrance
| | - Karim Benzerara
- Institut de Minéralogie de Physique des Matériaux et de Cosmochimie, CNRSSorbonne Université, Muséum National d'Histoire NaturelleParisFrance
| | - Guillaume Reboul
- Ecologie Systématique Evolution, CNRSUniversité Paris‐Saclay, AgroParisTechOrsayFrance
| | - Paola Bertolino
- Ecologie Systématique Evolution, CNRSUniversité Paris‐Saclay, AgroParisTechOrsayFrance
| | - Rosaluz Tavera
- Departamento de Ecología y Recursos NaturalesUniversidad Nacional Autónoma de MéxicoMexico CityMexico
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15
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Schmeller DS, Cheng T, Shelton J, Lin CF, Chan-Alvarado A, Bernardo-Cravo A, Zoccarato L, Ding TS, Lin YP, Swei A, Fisher MC, Vredenburg VT, Loyau A. Environment is associated with chytrid infection and skin microbiome richness on an amphibian rich island (Taiwan). Sci Rep 2022; 12:16456. [PMID: 36180528 PMCID: PMC9525630 DOI: 10.1038/s41598-022-20547-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Accepted: 09/14/2022] [Indexed: 11/09/2022] Open
Abstract
Growing evidence suggests that the origins of the panzootic amphibian pathogens Batrachochytrium dendrobatidis (Bd) and Batrachochytrium salamandrivorans (Bsal) are in Asia. In Taiwan, an island hotspot of high amphibian diversity, no amphibian mass mortality events linked to Bd or Bsal have been reported. We conducted a multi-year study across this subtropical island, sampling 2517 individuals from 30 species at 34 field sites, between 2010 and 2017, and including 171 museum samples collected between 1981 and 2009. We analyzed the skin microbiome of 153 samples (6 species) from 2017 in order to assess any association between the amphibian skin microbiome and the probability of infection amongst different host species. We did not detect Bsal in our samples, but found widespread infection by Bd across central and northern Taiwan, both taxonomically and spatially. Museum samples show that Bd has been present in Taiwan since at least 1990. Host species, geography (elevation), climatic conditions and microbial richness were all associated with the prevalence of infection. Host life-history traits, skin microbiome composition and phylogeny were associated with lower prevalence of infection for high altitude species. Overall, we observed low prevalence and burden of infection in host populations, suggesting that Bd is enzootic in Taiwan where it causes subclinical infections. While amphibian species in Taiwan are currently threatened by habitat loss, our study indicates that Bd is in an endemic equilibrium with the populations and species we investigated. However, ongoing surveillance of the infection is warranted, as changing environmental conditions may disturb the currently stable equilibrium.
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Affiliation(s)
- Dirk S. Schmeller
- grid.15781.3a0000 0001 0723 035XLaboratoire Ecologie Fonctionnelle et Environnement, Université de Toulouse, INPT, UPS, Toulouse, France
| | - Tina Cheng
- grid.263091.f0000000106792318Department of Biology, San Francisco State University, 1600 Holloway Ave, San Francisco, CA 94132 USA ,grid.421477.30000 0004 0639 1575Bat Conservation International, Washington, DC USA
| | - Jennifer Shelton
- grid.7445.20000 0001 2113 8111Department of Infectious Disease Epidemiology, Imperial College London, London, W2 1PG UK
| | - Chun-Fu Lin
- Zoology Division, Endemic Species Research Institute, Jiji, Nantou Taiwan, ROC
| | - Alan Chan-Alvarado
- grid.263091.f0000000106792318Department of Biology, San Francisco State University, 1600 Holloway Ave, San Francisco, CA 94132 USA
| | - Adriana Bernardo-Cravo
- grid.15781.3a0000 0001 0723 035XLaboratoire Ecologie Fonctionnelle et Environnement, Université de Toulouse, INPT, UPS, Toulouse, France
| | - Luca Zoccarato
- grid.419247.d0000 0001 2108 8097Department of Experimental Limnology, Leibniz-Institute of Freshwater Ecology and Inland Fisheries (IGB), Alte Fischerhütte 2, 16775 Stechlin, Germany
| | - Tzung-Su Ding
- grid.19188.390000 0004 0546 0241School of Forestry and Resource Conservation, National Taiwan University, Taipei City, 106 Taiwan, ROC
| | - Yu-Pin Lin
- grid.19188.390000 0004 0546 0241Department of Bioenvironmental Systems Engineering, National Taiwan University, Taipei, Taiwan, ROC
| | - Andrea Swei
- grid.263091.f0000000106792318Department of Biology, San Francisco State University, 1600 Holloway Ave, San Francisco, CA 94132 USA
| | - Matthew C. Fisher
- grid.7445.20000 0001 2113 8111Department of Infectious Disease Epidemiology, Imperial College London, London, W2 1PG UK
| | - Vance T. Vredenburg
- grid.263091.f0000000106792318Department of Biology, San Francisco State University, 1600 Holloway Ave, San Francisco, CA 94132 USA ,grid.47840.3f0000 0001 2181 7878Museum of Vertebrate Zoology, University of California Berkeley, Berkeley, CA 94720 USA
| | - Adeline Loyau
- grid.15781.3a0000 0001 0723 035XLaboratoire Ecologie Fonctionnelle et Environnement, Université de Toulouse, INPT, UPS, Toulouse, France ,grid.419247.d0000 0001 2108 8097Department of Experimental Limnology, Leibniz-Institute of Freshwater Ecology and Inland Fisheries (IGB), Alte Fischerhütte 2, 16775 Stechlin, Germany
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16
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Schirpke U, Ebner M. Exposure to global change pressures and potential impacts on ecosystem services of mountain lakes in the European Alps. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 318:115606. [PMID: 35777157 DOI: 10.1016/j.jenvman.2022.115606] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 06/01/2022] [Accepted: 06/20/2022] [Indexed: 06/15/2023]
Abstract
Mountain lakes are increasingly affected by global change pressures. While there is growing evidence of impacts on ecosystem functioning, few studies considered changes in ecosystem services (ES). This study aimed (1) to examine the exposure of small and natural mountain lakes in the European Alps to global change pressures and (2) to estimate potential impacts on six relevant ES considering future climate projections and potential changes in water use. For 2455 lakes, we mapped the level of exposure to global change pressures, including climate change, atmospheric nutrient deposition, and anthropogenic activities (e.g., water use). Our results indicate that more than half of the Alpine mountain lakes feature a considerable level of exposure to global change. Hotspot analysis revealed spatial clusters of lakes with above-average exposure (23.7% of all lakes), mostly located in the central part of the Alps, while lakes with below-average exposure level prevailed in the south-western (19.3%) and eastern parts (10.6%). For 15 case study lakes, we quantified potential impacts on six key ES. The results revealed, in particular, potential negative effects on maintaining habitat and populations as well as aesthetic value, but contrastingly, also some positive effects for outdoor recreation, research and education. Our findings suggest the need for a comprehensive integration of mountain lakes into current management and policy frameworks to ensure the ecological integrity and ES provision of mountain lakes. Interdisciplinary mountain lake research will be important to overcome uncertainties related to the coupling of limnological parameters and ES indicators.
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Affiliation(s)
- Uta Schirpke
- Department of Ecology, University of Innsbruck, Sternwartestrasse 15, 6020, Innsbruck, Austria; Institute for Alpine Environment, Eurac Research, Viale Druso 1, 39100, Bozen, Bolzano, Italy.
| | - Manuel Ebner
- Department of Ecology, University of Innsbruck, Sternwartestrasse 15, 6020, Innsbruck, Austria; Institute for Alpine Environment, Eurac Research, Viale Druso 1, 39100, Bozen, Bolzano, Italy
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17
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Guan Y, Jia J, Fan X, Li K, Wang Z. Anthropogenic impacts on antibiotic resistance genes and their hosts from pristine to urban river using metagenomic and binning approaches. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2022; 249:106221. [PMID: 35709638 DOI: 10.1016/j.aquatox.2022.106221] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 05/19/2022] [Accepted: 06/09/2022] [Indexed: 06/15/2023]
Abstract
Driven by anthropogenic pressure, Antibiotic resistance genes (ARGs) could transfer from the environmental resistome into human commensals or even pathogens. The transport of ARGs through aquatic ecosystems is crucial and has attracted attention. Here, we employed metagenomic and binning to compare ARGs profiles, their co-occurrence with metal resistance genes (MRGs) and mobile genetic elements (MGEs), and their hosts between pristine and anthropogenic influenced rivers and explore the ecological mechanisms underlying the dissemination of ARGs induced by anthropogenic activities. The significantly increased relative abundance of macrolide-lincosamide-streptogramins, vancomycin, β-lactam and sulfonamide resistance genes along the environmental gradient from pristine to polluted sediments implied that anthropogenic impact aided the emergence and dissemination of certain ARGs. At the lower reach of the Ba River, the higher ratios for contigs carrying more than one ARG suggested that anthropogenic pollution favored the co-occurrence of multiple ARGs. Anthropogenic pressures also increased the relative abundance of advantaged hosts, including Chloroflexi, Firmicutes and Euryarchaeota. At the lower reach of Ba River, Romboutsia timonensis carrying multiple ARGs and ICEs were successfully recovered, posing a serious threat to human health by affecting the metabolism of gut microbiomes. And Methanothrix soehngenii affiliated to archaea carrying multiple ARGs, MRGs and ICEs were also recovered from the lower Ba River. The partial least squares path modeling revealed that MGEs were the most predominant factors inducing the ARG profiles, and the antibiotic resistance could be enriched by co-transfer with MRGs. Furthermore, environmental factors could impact the ARG profiles indirectly by first influencing the ARGs' hosts.
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Affiliation(s)
- Yongjing Guan
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Jia Jia
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Xiaoteng Fan
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Kaiqi Li
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Zaizhao Wang
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China.
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18
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Ruthsatz K, Domscheit M, Engelkes K, Vences M. Microplastics ingestion induces plasticity in digestive morphology in larvae of Xenopus laevis. Comp Biochem Physiol A Mol Integr Physiol 2022; 269:111210. [PMID: 35398256 DOI: 10.1016/j.cbpa.2022.111210] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Revised: 03/31/2022] [Accepted: 04/02/2022] [Indexed: 01/16/2023]
Abstract
Global changes in temperature, predator introductions, and pollution might challenge animals by altering food conditions. A fast-growing source of environmental pollution are microplastics. If ingested with the natural food source, microplastics act as artificial fibers that reduce food quality by decreasing nutrient and energy density with possible ramifications for growth and development. Animals might cope with altered food conditions with digestive plasticity. We examined experimentally whether larvae of the African clawed frog (Xenopus laevis) exhibit digestive morphology plasticity (i.e., gut length, mass, and diameter) in response to microplastics ingestion. As natural systems contain non-digestible particles similar in size and shape to microplastics, we included cellulose as a natural fiber control group. Gut length and mass increased in response to microplastics and cellulose ingestion indicating that both types of fibers induced digestive plasticity. Body mass and body condition were similar across experimental groups, indicating that larvae fully compensated for low nutrient and energy density by developing longer intestines. The ability of a species to respond plastically to environmental variation, as X. laevis responded, indicates that this species might have the potential to cope with new conditions during global change, although it is uncertain whether this potential may be reduced in a multi-stressor environment.
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Affiliation(s)
- Katharina Ruthsatz
- Zoological Institute, Technische Universität Braunschweig, Mendelssohnstraße 4, 38106 Braunschweig, Germany.
| | - Marie Domscheit
- Zoological Institute, Technische Universität Braunschweig, Mendelssohnstraße 4, 38106 Braunschweig, Germany
| | - Karolin Engelkes
- Leibniz Institute for the Analysis of Biodiversity Change, Martin-Luther-King-Platz 3, 20146 Hamburg, Germany. https://twitter.com/KarolinEngelkes
| | - Miguel Vences
- Zoological Institute, Technische Universität Braunschweig, Mendelssohnstraße 4, 38106 Braunschweig, Germany
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19
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Zhao XL, Qi Z, Huang H, Tu J, Song XJ, Qi KZ, Shao Y. Coexistence of antibiotic resistance genes, fecal bacteria, and potential pathogens in anthropogenically impacted water. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:46977-46990. [PMID: 35175529 DOI: 10.1007/s11356-022-19175-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Accepted: 02/07/2022] [Indexed: 06/14/2023]
Abstract
Microbial indicators are often used to monitor microbial safety of aquatic environments. However, information regarding the correlation between microbial indicators and ecotoxicological factors such as potential pathogens and antibiotic resistance genes (ARGs) in anthropogenically impacted waters remains highly limited. Here, we investigated the bacterial community composition, potential pathogens, ARGs diversity, ARG hosts, and horizontal gene transfer (HGT) potential in urban river and wastewater samples from Chaohu Lake Basin using 16S rRNA and metagenomic sequencing. The composition of the microbial community and potential pathogens differed significantly in wastewater and river water samples, and the total relative abundance of fecal indicator bacteria was positively correlated with the total relative abundance of potential pathogens (p < 0.001 and Pearson's r = 0.758). Network analysis indicated that partial ARG subtypes such as dfrE, sul2, and PmrE were significantly correlated with indicator bacteria (p < 0.05 and Pearson's r > 0.6). Notably, Klebsiella was the indicator bacteria significantly correlated with 4 potential pathogens and 14 ARG subtypes. ARGs coexisting with mobile gene elements were mainly found in Thauera, Pseudomonas, Escherichia, and Acinetobacter. Next-generation sequencing (NGS) can be used to conduct preliminary surveys of environmental samples to access potential health risks, thereby facilitating water resources management.
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Affiliation(s)
- Xiang-Long Zhao
- Anhui Province Key Laboratory of Veterinary Pathobiology and Disease Control, College of Animal Science and Technology, Anhui Agricultural University, 130 West Changjiang Road, Hefei, 230036, People's Republic of China
| | - Zhao Qi
- School of Information and Computer, Anhui Agricultural University, Hefei, 230036, People's Republic of China
| | - Hao Huang
- Anhui Province Key Laboratory of Veterinary Pathobiology and Disease Control, College of Animal Science and Technology, Anhui Agricultural University, 130 West Changjiang Road, Hefei, 230036, People's Republic of China
| | - Jian Tu
- Anhui Province Key Laboratory of Veterinary Pathobiology and Disease Control, College of Animal Science and Technology, Anhui Agricultural University, 130 West Changjiang Road, Hefei, 230036, People's Republic of China
| | - Xiang-Jun Song
- Anhui Province Key Laboratory of Veterinary Pathobiology and Disease Control, College of Animal Science and Technology, Anhui Agricultural University, 130 West Changjiang Road, Hefei, 230036, People's Republic of China
| | - Ke-Zong Qi
- Anhui Province Key Laboratory of Veterinary Pathobiology and Disease Control, College of Animal Science and Technology, Anhui Agricultural University, 130 West Changjiang Road, Hefei, 230036, People's Republic of China.
| | - Ying Shao
- Anhui Province Key Laboratory of Veterinary Pathobiology and Disease Control, College of Animal Science and Technology, Anhui Agricultural University, 130 West Changjiang Road, Hefei, 230036, People's Republic of China.
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20
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Dulsat-Masvidal M, Ciudad C, Infante O, Mateo R, Lacorte S. Pilot monitoring scheme of water pollutants in Important Bird and Biodiversity Areas. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 237:113562. [PMID: 35487175 DOI: 10.1016/j.ecoenv.2022.113562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Revised: 04/08/2022] [Accepted: 04/20/2022] [Indexed: 06/14/2023]
Abstract
In this study we have established a monitoring scheme to determine the presence and distribution of widely used pharmaceuticals, pesticides, organophosphate esters (OPEs) and perfluoroalkyl substances (PFAS) in water bodies from Important Bird and Biodiversity Areas (IBAs) from Spain. The monitoring scheme included the georeferenced sampling of rocky mountain, Atlantic forest, riparian forest, Mediterranean forest, agricultural, inland aquatic and coastal aquatic IBAs, with the aim to evaluate the impact of widely used chemicals in those aquatic resources. Water samples were extracted using a generic solid-phase extraction protocol and analyzed by 3 analytical methods based on liquid chromatography coupled to tandem mass spectrometry (LC-MS/MS). Quality parameters such as compound recovery, intra and inter-day variation, linearity and limits of detection were calculated in order to validate the methods. In addition, the ionization conditions and the optimization of the most appropriate transitions permitted unequivocal identification. Once the sampling and analytical procedure was set-up, 59 target compounds were monitored in 63 samples. Pharmaceutical, followed by pesticides, OPEs and PFAS were widespread along all IBAs studied at concentrations from 0.5 to 41083 ng/L. Overall, this study highlights the need to monitor the presence of contaminants in areas of high ecological interest to contribute to pollution control and mitigation towards protection of biodiversity.
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Affiliation(s)
- Maria Dulsat-Masvidal
- Department of Environmental Chemistry, IDAEA-CSIC, Jordi Girona 18-26, 08034 Barcelona, Spain
| | - Carlos Ciudad
- SEO/BirdLife, Melquiades Biencinto, 34, 28053 Madrid, Spain
| | | | - Rafael Mateo
- Instituto de Investigación en Recursos Cinegéticos (IREC), CSIC-UCLM-JCCM, 13005 Ciudad Real, Spain
| | - Silvia Lacorte
- Department of Environmental Chemistry, IDAEA-CSIC, Jordi Girona 18-26, 08034 Barcelona, Spain.
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21
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Haver M, Le Roux G, Friesen J, Loyau A, Vredenburg VT, Schmeller DS. The role of abiotic variables in an emerging global amphibian fungal disease in mountains. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 815:152735. [PMID: 34974000 DOI: 10.1016/j.scitotenv.2021.152735] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Revised: 12/23/2021] [Accepted: 12/23/2021] [Indexed: 06/14/2023]
Abstract
The emergence of the chytridiomycete fungal pathogen Batrachochytrium dendrobatidis (Bd), causing the disease chytridiomycosis, has caused collapse of amphibian communities in numerous mountain systems. The health of amphibians and of mountain freshwater habitats they inhabit is also threatened by ongoing changes in environmental and anthropogenic factors such as climate, hydrology, and pollution. Climate change is causing more extreme climatic events, shifts in ice occurrence, and changes in the timing of snowmelt and pollutant deposition cycles. All of these factors impact both pathogen and host, and disease dynamics. Here we review abiotic variables, known to control Bd occurrence and chytridiomycosis severity, and discuss how climate change may modify them. We propose two main categories of abiotic variables that may alter Bd distribution, persistence, and physiology: 1) climate and hydrology (temperature, precipitation, hydrology, ultraviolet radiation (UVR); and, 2) water chemistry (pH, salinity, pollution). For both categories, we identify topics for further research. More studies on the relationship between global change, pollution and pathogens in complex landscapes, such as mountains, are needed to allow for accurate risk assessments for freshwater ecosystems and resulting impacts on wildlife and human health. Our review emphasizes the importance of using data of higher spatiotemporal resolution and uniform abiotic metrics in order to better compare study outcomes. Fine-scale temperature variability, especially of water temperature, variability of moisture conditions and water levels, snow, ice and runoff dynamics should be assessed as abiotic variables shaping the mountain habitat of pathogen and host. A better understanding of hydroclimate and water chemistry variables, as co-factors in disease, will increase our understanding of chytridiomycosis dynamics.
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Affiliation(s)
- Marilen Haver
- Laboratoire Écologie Fonctionnelle et Environnement, Université de Toulouse, CNRS, Toulouse INP, Université Toulouse 3 - Paul Sabatier (UPS), Toulouse, France.
| | - Gaël Le Roux
- Laboratoire Écologie Fonctionnelle et Environnement, Université de Toulouse, CNRS, Toulouse INP, Université Toulouse 3 - Paul Sabatier (UPS), Toulouse, France
| | - Jan Friesen
- Environmental and Biotechnology Centre, Helmholtz Centre for Environmental Research - UFZ, Leipzig, Germany
| | - Adeline Loyau
- Laboratoire Écologie Fonctionnelle et Environnement, Université de Toulouse, CNRS, Toulouse INP, Université Toulouse 3 - Paul Sabatier (UPS), Toulouse, France; Department of Experimental Limnology, Leibniz-Institute of Freshwater Ecology and Inland Fisheries (IGB), Alte Fischerhütte 2, Stechlin D-16775, Germany
| | - Vance T Vredenburg
- Department of Biology, San Francisco State University, 1600 Holloway Ave., San Francisco, CA 94132, USA
| | - Dirk S Schmeller
- Laboratoire Écologie Fonctionnelle et Environnement, Université de Toulouse, CNRS, Toulouse INP, Université Toulouse 3 - Paul Sabatier (UPS), Toulouse, France
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22
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Sentenac H, Loyau A, Leflaive J, Schmeller DS. The significance of biofilms to human, animal, plant and ecosystem health. Funct Ecol 2021. [DOI: 10.1111/1365-2435.13947] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Hugo Sentenac
- Laboratoire Ecologie Fonctionnelle et Environnement UMR 5245 Université de Toulouse CNRS INPT UPS Castanet‐Tolosan Cedex France
| | - Adeline Loyau
- Laboratoire Ecologie Fonctionnelle et Environnement UMR 5245 Université de Toulouse CNRS INPT UPS Castanet‐Tolosan Cedex France
- Department of Experimental Limnology Leibniz‐Institute of Freshwater Ecology and Inland Fisheries (IGB) Stechlin Germany
| | - Joséphine Leflaive
- Laboratoire Ecologie Fonctionnelle et Environnement UMR 5245 Université de Toulouse CNRS INPT UPS Castanet‐Tolosan Cedex France
| | - Dirk S. Schmeller
- Laboratoire Ecologie Fonctionnelle et Environnement UMR 5245 Université de Toulouse CNRS INPT UPS Castanet‐Tolosan Cedex France
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23
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Long-Term Land-Use/Land-Cover Change Increased the Landscape Heterogeneity of a Fragmented Temperate Forest in Mexico. FORESTS 2021. [DOI: 10.3390/f12081099] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The temperate forests of northern Mexico possess a great diversity of unique and endemic species, with the greatest associations of pine-oak in the planet occurring within them. However, the ecosystems in this region had experienced an accelerated fragmentation process in the past decades. This study described and quantified the landscape fragmentation level of a degraded watershed located in this region. For that, data from the Landsat series from 1990, 2005 and 2017, classified with the Support Vector Machine method, were used. The landscape structure was analyzed based on six metrics applied at both, the landscape and class levels. Results show considerable gains in surface area for the land use land cover change (LULC) of secondary forest while the Primary Forest (PF) lost 18.1% of its area during 1990–2017. The PF increased its number of patches from 7075 to 12,318, increased its patch density (PD) from 53.51 to 58.46 # of patches/100 ha, and reduced its average patch size from 39.21 to 15.05 ha. This made the PF the most fragmented LULC from the 5 LULCs evaluated. In this study, strong fluctuations in edge density and PD were registered, which indicates the forests of northern Mexico have experienced a reduction in their productivity and have been subjected to a continuous degradation process due to disturbances such as fires, clandestine and non-properly controlled logging, among others.
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Suresh R, Rajendran S, Hoang TKA, Vo DVN, Siddiqui MN, Cornejo-Ponce L. Recent progress in green and biopolymer based photocatalysts for the abatement of aquatic pollutants. ENVIRONMENTAL RESEARCH 2021; 199:111324. [PMID: 33991569 DOI: 10.1016/j.envres.2021.111324] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Revised: 04/16/2021] [Accepted: 05/07/2021] [Indexed: 06/12/2023]
Abstract
Enormous research studies on the abatement of anthropogenic aquatic pollutants including organic dyes, pesticides, cosmetics, antibiotics and inorganic species by using varieties of semiconductor photocatalysts have been reported in recent decades. Besides, many of these photocatalysts suffer in real applications owing to their high production cost and low stability. In many cases, the photocatalysts themselves are being considered as secondary pollutants. To eliminate these drawbacks, the green synthesized photocatalysts and the use of biopolymers as photocatalyst supports are considered in recent years. In this context, recent developments in green synthesized metals, metal oxides, other metal compounds, and carbon based photocatalysts in water purification are critically reviewed. Furthermore, the pivotal role of biopolymers including chitin, chitosan, cellulose, natural gum, hydroxyapatite, alginate in photocatalytic removal of aquatic pollutants is comprehensively reviewed. The presence of functional groups, electron trapping ability, biocompatibility, natural occurrence, and low production cost are the major reasons for using biopolymers in photocatalysis. Finally, the summary and conclusion are presented along with existing challenges in this research area.
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Affiliation(s)
- R Suresh
- Laboratorio de Investigaciones Ambientales Zonas Áridas, Departamento de Ingeniería Mecánica, Facultad de Ingeniería, Universidad de Tarapacá, Avda. General Velásquez 1775, Arica, Chile
| | - Saravanan Rajendran
- Laboratorio de Investigaciones Ambientales Zonas Áridas, Departamento de Ingeniería Mecánica, Facultad de Ingeniería, Universidad de Tarapacá, Avda. General Velásquez 1775, Arica, Chile.
| | - Tuan K A Hoang
- Centre of Excellence in Transportation Electrification and Energy Storage, Hydro-Québec, 1806, boul. Lionel-Boulet, Varennes, J3X 1S1, Canada
| | - Dai-Viet N Vo
- Center of Excellence for Green Energy and Environmental Nanomaterials (CE@GrEEN), Nguyen Tat Thanh University, 300A Nguyen Tat Thanh, District 4, Ho Chi Minh City, 755414, Viet Nam
| | - Mohammad Nahid Siddiqui
- Chemistry Department and IRC Membranes & Water Security, King Fahd University of Petroleum & Minerals, Dhahran, Saudi Arabia
| | - Lorena Cornejo-Ponce
- Laboratorio de Investigaciones Ambientales Zonas Áridas, Departamento de Ingeniería Mecánica, Facultad de Ingeniería, Universidad de Tarapacá, Avda. General Velásquez 1775, Arica, Chile
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25
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Schmeller DS, Bridgewater P. The eighth plenary of the Intergovernmental Science-Policy Platform for Biodiversity and Ecosystem Services (IPBES-8): online, nexus, and transformative change. BIODIVERSITY AND CONSERVATION 2021; 30:2857-2862. [PMID: 34334969 PMCID: PMC8313413 DOI: 10.1007/s10531-021-02261-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 07/12/2021] [Accepted: 07/12/2021] [Indexed: 06/13/2023]
Abstract
The Intergovernmental Science-Policy Platform for Biodiversity and Ecosystem Services held its 8th plenary session online in June 2021, during which a new budget was approved up to 2023, continuing work plans were agreed, and scoping documents for two new assessments, the nexus and transformative change assessments, were accepted.
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Affiliation(s)
| | - Peter Bridgewater
- Advanced Wellbeing Research Centre, Olympic Legacy Park, Sheffield Hallam University, Sheffield, S9 3TU UK
- Institute for Applied Ecology and Institute for Governance and Policy Analysis, University of Canberra, Bruce, ACT 2617 Australia
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26
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Recent Achievements in Electrochemical and Surface Plasmon Resonance Aptasensors for Mycotoxins Detection. CHEMOSENSORS 2021. [DOI: 10.3390/chemosensors9070180] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Mycotoxins are secondary metabolites of fungi that contaminate agriculture products. Their release in the environment can cause severe damage to human health. Aptasensors are compact analytical devices that are intended for the fast and reliable detection of various species able to specifically interact with aptamers attached to the transducer surface. In this review, assembly of electrochemical and surface plasmon resonance (SPR) aptasensors are considered with emphasis on the mechanism of signal generation. Moreover, the properties of mycotoxins and the aptamers selected for their recognition are briefly considered. The analytical performance of biosensors developed within last three years makes it possible to determine mycotoxin residues in water and agriculture/food products on the levels below their maximal admissible concentrations. Requirements for the development of sample treatment and future trends in aptasensors are also discussed.
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27
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Quantifying Ecosystem Services of High Mountain Lakes across Different Socio-Ecological Contexts. SUSTAINABILITY 2021. [DOI: 10.3390/su13116051] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Mountain lakes are highly sensitive to global change, requiring sustainable management strategies that support crucial ecosystem services (ES). However, small mountain lakes are rarely in the focus of ES assessments, and indicators are potentially lacking. Therefore, this study aimed at comprehensively assessing key ES of 15 study lakes located in two regions in the European Alps. We involved local stakeholders and experts to identify important ES. We quantified eight ES in non-monetary terms, using 29 indicators based on limnological, spatial and socio-economic data. Finally, we evaluated ES in relation to the socio-ecological context of the study lakes. The most important ES included surface water for non-drinking purposes, maintaining populations and habitats, outdoor recreation, aesthetic value, entertainment and representation, scientific research, education as well as existence, option, or bequest value. Quantitative results indicate varying levels of ES across the study lakes. Based on 12 different socio-ecological variables, we identified four groups of lakes differing also in five ES. Maintaining populations and habitats, aesthetic value as well as existence, option or bequest value were rather independent from the socio-ecological context. Our findings contribute to a deeper understanding of ES of mountain lakes, also supporting the development of sustainable management strategies in mountain regions.
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28
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“A Gem among the Rocks”—Identifying and Measuring Visual Preferences for Mountain Lakes. WATER 2021. [DOI: 10.3390/w13091151] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The high visual quality of lakes bolsters aesthetic and recreational experiences, but little is known about the specific visual preferences related to mountain lakes. This study therefore aimed at assessing people’s preferences on visual characteristics of mountain lakes using an online questionnaire. Adopting a qualitative approach, we first identified major recognised characteristics of mountain lakes, i.e., respondents indicated that mountain lakes are typically small-sized lakes with clear, cold and blue water and are embedded in a natural mountain landscape. Then, we used different picture sets related to water clarity, water colour, presence of algae, lake shore and surrounding land cover to quantify preferences. Our results indicated a clear preference for blue, clear water and the absence of algae as well as large rocks at the lake shore and forest around the lake. In particular, preferences related to visual water characteristics were highly homogeneous across socio-cultural groups and confirmed previous findings. To illustrate the applicability of our findings, we integrated our results with spatial and limnological data to quantify aesthetic values for four selected study lakes in the European Alps. Finally, we discuss our findings in the context of increasing demand for nature-based experiences and the implications for decision-making.
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29
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Pereda C, Actis DG, Mendoza Zélis P, Alvarez VA, Sanchez LM. Tillandsia Aeranthos
flower‐like magnetic nanostructures confined into polyvinyl alcohol beads. J Appl Polym Sci 2021. [DOI: 10.1002/app.50261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Camila Pereda
- Materiales Compuestos Termoplásticos (CoMP), Instituto de Investigaciones en Ciencia y Tecnología de Materiales (INTEMA) CONICET‐Universidad Nacional de Mar del Plata (UNMdP) Mar del Plata Argentina
| | - Daniel G. Actis
- Instituto de Física de La Plata (IFLP) CONICET‐Departamento de Física, Universidad Nacional de La Plata (UNLP) La Plata Argentina
| | - Pedro Mendoza Zélis
- Instituto de Física de La Plata (IFLP) CONICET‐Departamento de Física, Universidad Nacional de La Plata (UNLP) La Plata Argentina
| | - Vera A. Alvarez
- Materiales Compuestos Termoplásticos (CoMP), Instituto de Investigaciones en Ciencia y Tecnología de Materiales (INTEMA) CONICET‐Universidad Nacional de Mar del Plata (UNMdP) Mar del Plata Argentina
| | - Laura M. Sanchez
- Materiales Compuestos Termoplásticos (CoMP), Instituto de Investigaciones en Ciencia y Tecnología de Materiales (INTEMA) CONICET‐Universidad Nacional de Mar del Plata (UNMdP) Mar del Plata Argentina
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30
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Kuton MP, Ayanda IO, Uzoalu IA, Akhiromen DI, George A, Akinsanya B. Studies on heavy metals and fish health indicators in Malapterurus electricus from Lekki Lagoon, Lagos, Nigeria. Vet Anim Sci 2021; 12:100169. [PMID: 33732945 PMCID: PMC7938240 DOI: 10.1016/j.vas.2021.100169] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2020] [Revised: 02/13/2021] [Accepted: 02/16/2021] [Indexed: 11/24/2022] Open
Abstract
The aquatic ecosystem is constantly being disturbed by rising levels of different classes of pollutants of human origin in the form of urban, agricultural and industrial discharges. In this study, the health of fish Malapterurus electricus was examined, to serve as a reflection of the impact of anthropogenic disturbances in the Lekki lagoon. Eighty six samples of the fish were analysed for parasitic infections, heavy metals, microorganisms in their internal and external body parts while the proximate composition and fish condition factor were also determined using conventional methods. One parasite species, a cestode Electrotaenia malapteruri was found to infect the fish. Total parasite load was eighty five with a total prevalence of infection of 36%. Elements detected in sediment were of the order of Al>Fe>Mn>Pb>Cr>Zn>Cd>Ba>Cu>Ni while in water, it is Mn>Fe>Zn>Ba>Cd>Cr>Al>Cu>Ni>Pb. Metals analysed in the fish tissues were generally low and below regulatory limits. In the proximate analysis, moisture content has a value of 80.7%, while ash content had a value of 1.26%. Eight bacterial and two fungal species were isolated from the fish. The condition factor of fish varied between 1 and 2. The study provides valuable information for monitoring and management of heavy metal pollution in the aquatic ecosystem.
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Affiliation(s)
- Minasu P Kuton
- Department of Marine Sciences, University of Lagos, Akoka, Lagos State, Nigeria
| | - Isaac O Ayanda
- Department of Biological Sciences, Covenant University, Ota, Ogun State, Nigeria
| | - Ijeoma A Uzoalu
- Department of Marine Sciences, University of Lagos, Akoka, Lagos State, Nigeria
| | - Dorathy I Akhiromen
- Department of Marine Sciences, University of Lagos, Akoka, Lagos State, Nigeria
| | - Aderonke George
- Department of Marine Sciences, University of Lagos, Akoka, Lagos State, Nigeria
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31
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Schmeller DS, Bridgewater P. The eighth plenary of the Intergovernmental Science-Policy Platform for Biodiversity and Ecosystem Services (IPBES-8): online, nexus, and transformative change. BIODIVERSITY AND CONSERVATION 2021. [PMID: 34334969 DOI: 10.1007/s10531-019-01804-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
The Intergovernmental Science-Policy Platform for Biodiversity and Ecosystem Services held its 8th plenary session online in June 2021, during which a new budget was approved up to 2023, continuing work plans were agreed, and scoping documents for two new assessments, the nexus and transformative change assessments, were accepted.
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Affiliation(s)
| | - Peter Bridgewater
- Advanced Wellbeing Research Centre, Olympic Legacy Park, Sheffield Hallam University, Sheffield, S9 3TU UK
- Institute for Applied Ecology and Institute for Governance and Policy Analysis, University of Canberra, Bruce, ACT 2617 Australia
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32
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Schmeller DS, Bridgewater P. The eighth plenary of the Intergovernmental Science-Policy Platform for Biodiversity and Ecosystem Services (IPBES-8): online, nexus, and transformative change. BIODIVERSITY AND CONSERVATION 2021. [PMID: 34334969 DOI: 10.1007/s10531-017-1361-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
The Intergovernmental Science-Policy Platform for Biodiversity and Ecosystem Services held its 8th plenary session online in June 2021, during which a new budget was approved up to 2023, continuing work plans were agreed, and scoping documents for two new assessments, the nexus and transformative change assessments, were accepted.
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Affiliation(s)
| | - Peter Bridgewater
- Advanced Wellbeing Research Centre, Olympic Legacy Park, Sheffield Hallam University, Sheffield, S9 3TU UK
- Institute for Applied Ecology and Institute for Governance and Policy Analysis, University of Canberra, Bruce, ACT 2617 Australia
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33
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Schmeller DS, Bridgewater P. The eighth plenary of the Intergovernmental Science-Policy Platform for Biodiversity and Ecosystem Services (IPBES-8): online, nexus, and transformative change. BIODIVERSITY AND CONSERVATION 2021. [PMID: 34334969 DOI: 10.1007/s10531-016-1095-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
The Intergovernmental Science-Policy Platform for Biodiversity and Ecosystem Services held its 8th plenary session online in June 2021, during which a new budget was approved up to 2023, continuing work plans were agreed, and scoping documents for two new assessments, the nexus and transformative change assessments, were accepted.
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Affiliation(s)
| | - Peter Bridgewater
- Advanced Wellbeing Research Centre, Olympic Legacy Park, Sheffield Hallam University, Sheffield, S9 3TU UK
- Institute for Applied Ecology and Institute for Governance and Policy Analysis, University of Canberra, Bruce, ACT 2617 Australia
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34
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Oleksy IA, Beck WS, Lammers RW, Steger CE, Wilson C, Christianson K, Vincent K, Johnson G, Johnson PTJ, Baron JS. The role of warm, dry summers and variation in snowpack on phytoplankton dynamics in mountain lakes. Ecology 2020; 101:e03132. [PMID: 32628277 PMCID: PMC7583380 DOI: 10.1002/ecy.3132] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Revised: 02/28/2020] [Accepted: 05/21/2020] [Indexed: 11/08/2022]
Abstract
Climate change is altering biogeochemical, metabolic, and ecological functions in lakes across the globe. Historically, mountain lakes in temperate regions have been unproductive because of brief ice-free seasons, a snowmelt-driven hydrograph, cold temperatures, and steep topography with low vegetation and soil cover. We tested the relative importance of winter and summer weather, watershed characteristics, and water chemistry as drivers of phytoplankton dynamics. Using boosted regression tree models for 28 mountain lakes in Colorado, we examined regional, intraseasonal, and interannual drivers of variability in chlorophyll a as a proxy for lake phytoplankton. Phytoplankton biomass was inversely related to the maximum snow water equivalent (SWE) of the previous winter, as others have found. However, even in years with average SWE, summer precipitation extremes and warming enhanced phytoplankton biomass. Peak seasonal phytoplankton biomass coincided with the warmest water temperatures and lowest nitrogen-to-phosphorus ratios. Although links between snowpack, lake temperature, nutrients, and organic-matter dynamics are increasingly recognized as critical drivers of change in high-elevation lakes, our results highlight the additional influence of summer conditions on lake productivity in response to ongoing changes in climate. Continued changes in the timing, type, and magnitude of precipitation in combination with other global-change drivers (e.g., nutrient deposition) will affect production in mountain lakes, potentially shifting these historically oligotrophic lakes toward new ecosystem states. Ultimately, a deeper understanding of these drivers and pattern at multiple scales will allow us to anticipate ecological consequences of global change better.
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Affiliation(s)
- Isabella A. Oleksy
- Natural Resource Ecology LaboratoryColorado State UniversityFort CollinsColorado80526USA
- Cary Institute of Ecosystem StudiesMillbrookNew York12545USA
| | - Whitney S. Beck
- Department of BiologyColorado State UniversityFort CollinsColorado80526USA
| | | | - Cara E. Steger
- Cary Institute of Ecosystem StudiesMillbrookNew York12545USA
| | - Codie Wilson
- Department of GeosciencesColorado State UniversityFort CollinsColorado80526USA
| | - Kyle Christianson
- Department of Fish, Wildlife, and Conservation BiologyColorado State UniversityFort CollinsColorado80526USA
| | - Kim Vincent
- Department of Ecology and Evolutionary BiologyUniversity of ColoradoBoulderColorado80309USA
| | - Gunnar Johnson
- Department of GeologyPortland State UniversityPortlandOregon97201USA
| | - Pieter T. J. Johnson
- Department of Ecology and Evolutionary BiologyUniversity of ColoradoBoulderColorado80309USA
| | - J. S. Baron
- Natural Resource Ecology LaboratoryColorado State UniversityFort CollinsColorado80526USA
- U.S. Geological SurveyFort CollinsColorado80526USA
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35
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Zhang L, Xu M, Li X, Lu W, Li J. Sediment Bacterial Community Structure Under the Influence of Different Domestic Sewage Types. J Microbiol Biotechnol 2020; 30:1355-1366. [PMID: 32627763 PMCID: PMC9728189 DOI: 10.4014/jmb.2004.04023] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Revised: 06/21/2020] [Accepted: 06/22/2020] [Indexed: 12/15/2022]
Abstract
Sediment bacterial communities are critical to the biogeochemical cycle in river ecosystems, but our understanding of the relationship between sediment bacterial communities and their specific input streams in rivers remains insufficient. In this study, we analyzed the sediment bacterial community structure in a local river receiving discharge of urban domestic sewage by applying Illumina MiSeq high-throughput sequencing. The results showed that the bacterial communities of sediments samples of different pollution types had similar dominant phyla, mainly Proteobacteria, Actinobacteria, Chloroflexi and Firmicutes, but their relative abundances were different. Moreover, there were great differences at the genus level. For example, the genus Bacillus showed statistically significant differences in the hotel site. The clustering of bacterial communities at various sites and the dominant families (i.e., Nocardioidaceae, and Sphingomonadaceae) observed in the residential quarter differed from other sites. This result suggested that environmentally induced species sorting greatly influenced the sediment bacterial community composition. The bacterial cooccurrence patterns showed that the river bacteria had a nonrandom modular structure. Microbial taxonomy from the same module had strong ecological links (such as the nitrogenium cycle and degradation of organic pollutants). Additionally, PICRUSt metabolic inference analysis showed the most important function of river bacterial communities under the influence of different types of domestic sewage was metabolism (e.g., genes related to xenobiotic degradation predominated in residential quarter samples). In general, our results emphasize that the adaptive changes and interactions in the bacterial community structure of river sediment represent responses to different exogenous pollution sources.
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Affiliation(s)
- Lei Zhang
- School of Civil Engineering and Architecture, Chuzhou University, Chuzhou 239000, P.R. China,Corresponding author Phone: +86-550-3511822 Fax: +550-3511822 E-mail:
| | - Mengli Xu
- School of Civil Engineering and Architecture, Chuzhou University, Chuzhou 239000, P.R. China
| | - Xingchen Li
- School of Civil Engineering and Architecture, Chuzhou University, Chuzhou 239000, P.R. China
| | - Wenxuan Lu
- Fisheries Research Institute, Anhui Academy of Sciences, Hefei 230001, P.R. China
| | - Jing Li
- Fisheries Research Institute, Anhui Academy of Sciences, Hefei 230001, P.R. China
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Zhou L, Liu L, Chen WY, Sun JJ, Hou SW, Kuang TX, Wang WX, Huang XD. Stochastic determination of the spatial variation of potentially pathogenic bacteria communities in a large subtropical river. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 264:114683. [PMID: 32388300 DOI: 10.1016/j.envpol.2020.114683] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Revised: 04/01/2020] [Accepted: 04/25/2020] [Indexed: 06/11/2023]
Abstract
Understanding the composition and assembly mechanism of waterborne pathogen is essential for preventing the pathogenic infection and protecting the human health. Here, based on 16S rRNA sequencing, we investigated the composition and spatial variation of potentially pathogenic bacteria from different sections of the Pearl River, the most important source of water for human in Southern China. The results showed that the potential pathogen communities consisted of 6 phyla and 64 genera, covering 11 categories of potential pathogens mainly involving animal parasites or symbionts (AniP), human pathogens all (HumPA), and intracellular parasites (IntCelP). Proteobacteria (75.87%) and Chlamydiae (20.56%) were dominant at the phylum level, and Acinetobacter (35.01%) and Roseomonas (8.24%) were dominant at the genus level. Multivariate analysis showed that the potential pathogenic bacterial community was significantly different among the four sections in the Pearl River. Both physicochemical factors (e.g., NO3-N, and suspended solids) and land use (e.g., urban land and forest) significantly shaped the pathogen community structure. However, spatial effects contributed more to the variation of pathogen community based on variation partitioning and path analysis. Null model based normalized stochasticity ratio analysis further indicated that the stochastic process rather than deterministic process dominated the assembly mechanisms by controlling the spatial patterns of potential pathogens. In conclusion, high-throughput sequencing shows great potential for monitoring the potential pathogens, and provided more comprehensive information on the potentially pathogenic community. Our study highlighted the importance of considering the influences of dispersal-related processes in future risk assessments for the prevention and control of pathogenic bacteria.
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Affiliation(s)
- Lei Zhou
- Joint Laboratory of Guangdong Province and Hong Kong Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, China
| | - Li Liu
- Joint Laboratory of Guangdong Province and Hong Kong Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, China
| | - Wei-Yuan Chen
- Joint Laboratory of Guangdong Province and Hong Kong Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, China
| | - Ji-Jia Sun
- Joint Laboratory of Guangdong Province and Hong Kong Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, China
| | - Shi-Wei Hou
- Joint Laboratory of Guangdong Province and Hong Kong Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, China
| | - Tian-Xu Kuang
- Joint Laboratory of Guangdong Province and Hong Kong Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, China
| | - Wen-Xiong Wang
- Joint Laboratory of Guangdong Province and Hong Kong Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, China; School of Energy and Environment, State Key Laboratory of Marine Pollution, City University of Hong Kong, Kowloon, Hong Kong
| | - Xian-De Huang
- Joint Laboratory of Guangdong Province and Hong Kong Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, China.
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37
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From Laboratory Tests to the Ecoremedial System: The Importance of Microorganisms in the Recovery of PPCPs-Disturbed Ecosystems. APPLIED SCIENCES-BASEL 2020. [DOI: 10.3390/app10103391] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The presence of a wide variety of emerging pollutants in natural water resources is an important global water quality challenge. Pharmaceuticals and personal care products (PPCPs) are known as emerging contaminants, widely used by modern society. This objective ensures availability and sustainable management of water and sanitation for all, according to the 2030 Agenda. Wastewater treatment plants (WWTP) do not always mitigate the presence of these emerging contaminants in effluents discharged into the environment, although the removal efficiency of WWTP varies based on the techniques used. This main subject is framed within a broader environmental paradigm, such as the transition to a circular economy. The research and innovation within the WWTP will play a key role in improving the water resource management and its surrounding industrial and natural ecosystems. Even though bioremediation is a green technology, its integration into the bio-economy strategy, which improves the quality of the environment, is surprisingly rare if we compare to other corrective techniques (physical and chemical). This work carries out a bibliographic review, since the beginning of the 21st century, on the biological remediation of some PPCPs, focusing on organisms (or their by-products) used at the scale of laboratory or scale-up. PPCPs have been selected on the basics of their occurrence in water resources. The data reveal that, despite the advantages that are associated with bioremediation, it is not the first option in the case of the recovery of systems contaminated with PPCPs. The results also show that fungi and bacteria are the most frequently studied microorganisms, with the latter being more easily implanted in complex biotechnological systems (78% of bacterial manuscripts vs. 40% fungi). A total of 52 works has been published while using microalgae and only in 7% of them, these organisms were used on a large scale. Special emphasis is made on the advantages that are provided by biotechnological systems in series, as well as on the need for eco-toxicological control that is associated with any process of recovery of contaminated systems.
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Dalibard M, Buisson L, Riberon A, Laffaille P. Identifying threats to Pyrenean brook newt (Calotriton asper) to improve decision making in conservation management: A literature review complemented by expert-driven knowledge. J Nat Conserv 2020. [DOI: 10.1016/j.jnc.2020.125801] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Mengist W, Soromessa T, Legese G. Ecosystem services research in mountainous regions: A systematic literature review on current knowledge and research gaps. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 702:134581. [PMID: 31734614 DOI: 10.1016/j.scitotenv.2019.134581] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Revised: 08/14/2019] [Accepted: 09/19/2019] [Indexed: 05/15/2023]
Abstract
Mountain ecosystem services (MES) can provide a wide range of benefits for human well-being, including provisioning, regulating, supporting and cultural services. This systematic review work analyzed existed knowledge and research gaps on MES at the global level. The study used databases of science direct, Scopus and google scholar using searching, appraisal, synthesis, and analysis (SALSA) framework. Using specific keywords for the searching engine, the number of publications linked with MES were about 1252 which published between 1992 and June 2019. But, only 74 publications fulfilled the inclusion criteria. The analysis highlighted the existence of gaps in the literature including case studies from a limited geographical areas, focus on regulating and provisioning services, and lack of studies that explore the kinds of interlink between ecosystem services, and occurrence of limitation linked with data and methodology. From the 74 publications used for analysis, only seven of them were addressed mainly trade-offs and synergies, but most of them focus on quantification, qualification and economic valuation of the services. From the total case studies, the services addressed were summed up to 317 services, and the services such as climate regulation, food and fodder, fresh water, recreation and ecotourism, and erosion regulation studied more. On the contrary, photosynthesis, ornamental resources, net primary production, disease regulation, genetic resources, water purification and waste treatments were the least studied. Therefore, future research works should focus on mountainous areas of no and least studied of its ecosystem services. Critical studies are also required that indicate the link between a human being with MES, the trade-offs and synergies between MES and the influence of human beings on the quality and accessibility of ecosystem services. Besides, priority should be given by researches for methodological development and proposing management option for the mountain ecosystem and resource.
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Affiliation(s)
- Wondimagegn Mengist
- Department of Natural Resource Management, Debre-Berhan University, Ethiopia; Center for Environmental Science, Addis Ababa University, Ethiopia.
| | | | - Gudina Legese
- Center for Environmental Science, Addis Ababa University, Ethiopia
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40
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Schmeller DS, Courchamp F, Killeen G. Biodiversity loss, emerging pathogens and human health risks. BIODIVERSITY AND CONSERVATION 2020; 29:3095-3102. [PMID: 32836920 PMCID: PMC7423499 DOI: 10.1007/s10531-020-02021-6] [Citation(s) in RCA: 58] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
Outbreaks of emerging infectious diseases are occurring with increasing frequency and consequences, including wildlife diseases and zoonoses. Those have potentially long-lasting effects on human and wildlife populations, with inevitable direct and indirect effects on ecosystems. The intensifying emergence of infectious pathogens has many underlying reasons, all driven by the growing anthropogenic impact on nature. Intensifying pathogen emergence can be attributed to climate change, biodiversity loss, habitat degradation, and an increasing rate of wildlife-human contacts. All of these are caused by synergies between persisting intense poverty and a growing human population. Improved global management of the human-driven biological degradation and international dispersal processes that exacerbate those pandemic threats are now long overdue. It is vital that we act decisively in the aftermath of the COVID-19 crisis to radically change how we collectively manage the planet as a whole.
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Affiliation(s)
| | - Franck Courchamp
- Université Paris-Saclay, CNRS, AgroParisTech, Ecologie Systématique Evolution, 91405 Orsay, France
| | - Gerry Killeen
- School of Biological, Earth & Environmental Sciences, and Environmental Research Institute, University College Cork, Cork, Republic of Ireland
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41
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Ruthsatz K, Giertz LM, Schröder D, Glos J. Chemical composition of food induces plasticity in digestive morphology in larvae of Rana temporaria. Biol Open 2019; 8:bio048041. [PMID: 31852656 PMCID: PMC6955212 DOI: 10.1242/bio.048041] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2019] [Accepted: 11/26/2019] [Indexed: 11/20/2022] Open
Abstract
Food conditions are changing due to anthropogenic activities and natural sources and thus, many species are exposed to new challenges. Animals might cope with altered quantitative and qualitative composition [i.e. variable protein, nitrogen (N) and energy content] of food by exhibiting trophic and digestive plasticity. We examined experimentally whether tadpoles of the common frog (Rana temporaria) exhibit phenotypic plasticity of the oral apparatus and intestinal morphology when raised on a diet of either low (i.e. Spirulina algae) or high protein, N and energy content (i.e. Daphnia pulex). Whereas intestinal morphology was highly plastic, oral morphology did not respond plastically to different chemical compositions of food. Tadpoles that were fed food with low protein and N content and low-energy density developed significantly longer guts and a larger larval stomachs than tadpoles raised on high protein, N and an energetically dense diet, and developed a different intestinal surface morphology. Body sizes of the treatment groups were similar, indicating that tadpoles fully compensated for low protein, N and energy diet by developing longer intestines. The ability of a species, R. temporaria, to respond plastically to environmental variation indicates that this species might have the potential to cope with new conditions during climate change.
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Affiliation(s)
- Katharina Ruthsatz
- Department of Biology, Institute for Zoology, University of Hamburg, Martin-Luther-King Platz 3, 20146 Hamburg, Germany
| | - Lisa Marie Giertz
- Department of Biology, Institute for Zoology, University of Hamburg, Martin-Luther-King Platz 3, 20146 Hamburg, Germany
| | - Dominik Schröder
- Department of Biology, Institute for Zoology, University of Hamburg, Martin-Luther-King Platz 3, 20146 Hamburg, Germany
| | - Julian Glos
- Department of Biology, Institute for Zoology, University of Hamburg, Martin-Luther-King Platz 3, 20146 Hamburg, Germany
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42
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Variability of Water Transit Time Distributions at the Strengbach Catchment (Vosges Mountains, France) Inferred Through Integrated Hydrological Modeling and Particle Tracking Algorithms. WATER 2019. [DOI: 10.3390/w11122637] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The temporal variability of transit-time distributions (TTDs) and residence-time distributions (RTDs) has received particular attention recently, but such variability has barely been studied using distributed hydrological modeling. In this study, a low-dimensional integrated hydrological model is run in combination with particle-tracking algorithms to investigate the temporal variability of TTDs, RTDs, and StorAge Selection (SAS) functions in the small, mountainous Strengbach watershed belonging to the French network of critical-zone observatories. The particle-tracking algorithms employed rely upon both forward and backward formulations that are specifically developed to handle time-variable velocity fields and evaluate TTDs and RTDs under transient hydrological conditions. The model is calibrated using both traditional streamflow measurements and magnetic resonance sounding (MRS)—which is sensitive to the subsurface water content—and then verified over a ten-year period. The results show that the mean transit time is rather short, at 150–200 days, and that the TTDs and RTDs are not greatly influenced by water storage within the catchment. This specific behavior is mainly explained by the small size of the catchment and its small storage capacity, a rapid flow mainly controlled by gravity along steep slopes, and climatic features that keep the contributive zone around the stream wet all year long.
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43
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Ríos JM, Ruggeri MF, Poma G, Malarvannan G, Covaci A, Puliafito SE, Ciocco NF, Altamirano JC. Occurrence of organochlorine compounds in fish from freshwater environments of the central Andes, Argentina. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 693:133389. [PMID: 31362233 DOI: 10.1016/j.scitotenv.2019.07.195] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Revised: 07/11/2019] [Accepted: 07/13/2019] [Indexed: 06/10/2023]
Abstract
The Central Andes region is considered an area of high environmental relevance in South America and it is rich in glaciers, which are the main fresh water sources and reservoirs of the region. The presence of organochlorine compounds (OCs) is an environmental threat due to their persistence and adverse effects on wildlife and humans. The levels of OCs, such as chlordane compounds (CHLs), dichlorodiphenyltrichloroethane and metabolites (DDTs), hexachlorobenzene (HCB), hexachlorocyclohexanes (HCHs), and polychlorinated biphenyls (PCBs), were determined in muscle and liver tissues of fish and in sediments collected from different sites of the central Andes: the Mendoza River and the Yaucha River (rainbow trout: Oncorhynchus mykiss) and Carrizal Dam (silverside: Odontesthes bonariensis). Regardless of studied site and fish tissue, the general OC trend was: DDTs > PCBs > HCHs > CHLs > HCB. The results showed clear geographic distribution patterns for DDTs. Among the sampling sites, silverside fish showed the highest average load of DDTs (614 and 867 ng g-1 lw in muscle and liver tissues, respectively). Based on the biota-sediment bioaccumulation factor (BSAF), both rainbow trout and silverside fish showed comparable capability to accumulate p,p'-DDT in their tissues. Intraspecific correlational analysis showed that CB-138 in muscle and p,p'-DDT in liver were clearly correlated with the lipid content in silverside specimens, which highlights the relevance of taking into account the fat content and the type of target tissues.
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Affiliation(s)
- Juan M Ríos
- Laboratorio de Química Ambiental, Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales (IANIGLA, CCT-CONICET), P.O. Box 131, Mendoza 5500, Argentina
| | - Maria F Ruggeri
- Laboratorio de Química Ambiental, Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales (IANIGLA, CCT-CONICET), P.O. Box 131, Mendoza 5500, Argentina; Universidad Tecnológica Nacional, Facultad Regional Mendoza, Rodriguez 273, Mendoza, Argentina
| | - Giulia Poma
- Toxicological Center, Department of Pharmaceutical Sciences, University of Antwerp, Universiteitsplein 1, 2610 Wilrijk, Belgium
| | - Govindan Malarvannan
- Toxicological Center, Department of Pharmaceutical Sciences, University of Antwerp, Universiteitsplein 1, 2610 Wilrijk, Belgium
| | - Adrian Covaci
- Toxicological Center, Department of Pharmaceutical Sciences, University of Antwerp, Universiteitsplein 1, 2610 Wilrijk, Belgium
| | - S Enrique Puliafito
- Universidad Tecnológica Nacional, Facultad Regional Mendoza, Rodriguez 273, Mendoza, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina
| | - Néstor F Ciocco
- Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Cuyo, Mendoza, Argentina; Instituto Argentino de Investigaciones de las Zonas Áridas (IADIZA, CCT-CONICET), Mendoza 5500, Argentina
| | - Jorgelina C Altamirano
- Laboratorio de Química Ambiental, Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales (IANIGLA, CCT-CONICET), P.O. Box 131, Mendoza 5500, Argentina; Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Cuyo, Mendoza, Argentina.
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Wilkins LGE, Matthews KR, Steel ZL, Nusslé SC, Carlson SM. Population dynamics of
Rana sierrae
at Dusy Basin: influence of non‐native predators, drought, and restoration potential. Ecosphere 2019. [DOI: 10.1002/ecs2.2951] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Affiliation(s)
- Laetitia G. E. Wilkins
- Department of Environmental Science, Policy & Management University of California, Berkeley Berkeley California USA
- Genome and Biomedical Sciences Facility University of California, Davis Davis California USA
| | | | - Zachary L. Steel
- Department of Environmental Science, Policy & Management University of California, Berkeley Berkeley California USA
- Department of Environmental Science & Policy University of California, Davis Davis California USA
| | - Sébastien C. Nusslé
- Department of Environmental Science, Policy & Management University of California, Berkeley Berkeley California USA
| | - Stephanie M. Carlson
- Department of Environmental Science, Policy & Management University of California, Berkeley Berkeley California USA
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45
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Amoatey P, Baawain MS. Effects of pollution on freshwater aquatic organisms. WATER ENVIRONMENT RESEARCH : A RESEARCH PUBLICATION OF THE WATER ENVIRONMENT FEDERATION 2019; 91:1272-1287. [PMID: 31486195 DOI: 10.1002/wer.1221] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2019] [Revised: 07/16/2019] [Accepted: 08/19/2019] [Indexed: 05/24/2023]
Abstract
This paper presents the reviews of scientific papers published in 2018 issues on the effects of anthropogenic pollution on the aquatic organisms dwelling in freshwater ecosystem at global scale. The first part of the study provides the summary of relevant literature reviews followed by field and survey based studies. The second part is based on categories of different classes/sources of pollutants which affect freshwater organism. This is composed of several sections including metals and metalloids, wastewater and effluents, sediments, nutrients, pharmaceuticals, polycyclic aromatic hydrocarbons, flame retardants, persistent organic pollutants, pharmaceuticals and illicit drugs, emerging contaminants, pesticides, herbicides, and endocrine disruptors. The final part of the study highlights the reviews of published research work on new pollutants such as microplastics and engineered nanoparticles which affect the freshwater organisms. PRACTITIONER POINTS: Heavy metals concentrations should be assessed at nano-scale in aquatic environment. Air pollutants could have long-term effects on freshwater ecosystem. Future studies should focus on bioremediations of freshwater pollution.
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Affiliation(s)
- Patrick Amoatey
- Department of Civil and Architectural Engineering, College of Engineering, Sultan Qaboos University, Muscat, Sultanate of Oman
| | - Mahad Said Baawain
- Department of Civil and Architectural Engineering, College of Engineering, Sultan Qaboos University, Muscat, Sultanate of Oman
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46
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Frenken T, Agha R, Schmeller DS, van West P, Wolinska J. Biological Concepts for the Control of Aquatic Zoosporic Diseases. Trends Parasitol 2019; 35:571-582. [PMID: 31076352 DOI: 10.1016/j.pt.2019.04.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Revised: 04/04/2019] [Accepted: 04/06/2019] [Indexed: 12/26/2022]
Abstract
Aquatic zoosporic diseases are threatening global biodiversity and ecosystem services, as well as economic activities. Current means of controlling zoosporic diseases are restricted primarily to chemical treatments, which are usually harmful or likely to be ineffective in the long term. Furthermore, some of these chemicals have been banned due to adverse effects. As a result, there is a need for alternative methods with minimal side-effects on the ecosystem or environment. Here, we integrate existing knowledge of three poorly interconnected areas of disease research - amphibian conservation, aquaculture, and plankton ecology - and arrange it into seven biological concepts to control zoosporic diseases. These strategies may be less harmful and more sustainable than chemical approaches. However, more research is needed before safe application is possible.
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Affiliation(s)
- Thijs Frenken
- Department of Ecosystem Research, Leibniz-Institute of Freshwater Ecology and Inland Fisheries, Berlin, Germany.
| | - Ramsy Agha
- Department of Ecosystem Research, Leibniz-Institute of Freshwater Ecology and Inland Fisheries, Berlin, Germany
| | - Dirk S Schmeller
- ECOLAB, Université de Toulouse, CNRS, INPT, UPS, Toulouse, France
| | - Pieter van West
- Aberdeen Oomycete Laboratory, College of Life Sciences and Medicine, Institute of Medical Sciences, University of Aberdeen, Aberdeen, UK
| | - Justyna Wolinska
- Department of Ecosystem Research, Leibniz-Institute of Freshwater Ecology and Inland Fisheries, Berlin, Germany; Institute of Biology, Freie Universität Berlin, Berlin, Germany
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47
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Bao K, Wang G, Jia L, Xing W. Anthropogenic impacts in the Changbai Mountain region of NE China over the last 150 years: geochemical records of peat and altitude effects. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:7512-7524. [PMID: 30659486 DOI: 10.1007/s11356-019-04138-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Accepted: 01/02/2019] [Indexed: 06/09/2023]
Abstract
Geochemical records from peatlands are important tools for the interpretation of environmental signals preserved in the peat and the understanding anthropogenic impacts on remote mountain regions. In this paper, six 210Pb-dated peat cores located at 500-1900 m above sea level (asl) in the Changbai Mountains were used to reconstruct the pollution history over the past 150 years in northeastern (NE) China. The cores physicochemical parameters and 10 key chemical elements were analyzed by inductively coupled plasma atomic emission spectroscopy (ICP-AES). Results from loss on ignition (LOI), total organic carbon (TOC), and lithogenic element (Ti, Fe, and Mn) analysis show that the peatlands (Ch, Yc1 and Jb) over 900 m asl are ombrotrophic and the lower altitude peatlands (Dng, Jc, and Ha) are minerotrophic. There is a decreasing trend of trace element distribution with the altitude, mainly due to the local source input. The content of the magnetic particles and trace elements (Cu, Ni, Pb and Zn) as well as their accumulation rates document 150 years of pollution history in the Changbai Mountain region. There is a significant elevated pattern of the geochemical records after the New China, which might mark the start date of Anthropocene since the 1950s in this region. The peatlands at the lower altitude (i.e., Dng and Ha) record the earliest fingerprints of metal contamination due to the starting period of massive reclaiming and immigrating in the Changbai Mountain region. The major increase of trace elements since the 1980s probably suggests a significant deterioration of the local environment due to the fast industrial and urbanization development after the Reform and Opening up in China.
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Affiliation(s)
- Kunshan Bao
- School of Geography, South China Normal University, Shipai Campus, Guangzhou, 510631, China.
| | - Guoping Wang
- Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, 130102, China
| | - Lin Jia
- Beijing Municipal Research Institute of Environmental Protection, Beijing, 100037, China
| | - Wei Xing
- College of Geographic Sciences, Xinyang Normal University, Xinyang, 464000, China
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48
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Mangadze T, Dalu T, William Froneman P. Biological monitoring in southern Africa: A review of the current status, challenges and future prospects. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 648:1492-1499. [PMID: 30340294 DOI: 10.1016/j.scitotenv.2018.08.252] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Revised: 08/18/2018] [Accepted: 08/19/2018] [Indexed: 06/08/2023]
Abstract
Biological monitoring programmes have gained popularity around the world particularly in southern Africa as they are fast, integrative and cost-effective approaches for assessing the effects of environmental stressors on aquatic ecosystems. This article reviews current efforts that have been made to use bioindicators (i.e. macroinvertebrates, diatoms and fish) in monitoring water resources and to summarise the challenges in employing these biological monitoring tools in southern Africa. In South Africa, macroinvertebrate (South African Scoring System (SASS)) and diatom based indices (e.g. South African diatom index (SADI)) have demonstrated their utility in identifying sources of impairment and determining the extent of impacts thus giving natural resource managers a scientifically defensible rationale for developing guidelines for conservation and management. Despite this advancement in South Africa, however, developing regionally appropriate quantitative tools for diagnosing ecosystem health is a pressing need for several other southern African countries. Together with sound scientific research, it is imperative for southern African countries to develop specific legislation and have mandated agencies, with proper training and funding to implement biomonitoring and bioassessments. We recommend for the advancement and adoption of biological criteria as an integrated approach to assessing the impact of human activities in riverine ecosystems of the southern African region.
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Affiliation(s)
- Tinotenda Mangadze
- Zoology and Entomology, Rhodes University, Grahamstown 6140, South Africa.
| | - Tatenda Dalu
- Ecology and Resource Management, University of Venda, Thohoyandou 0950, South Africa
| | - P William Froneman
- Zoology and Entomology, Rhodes University, Grahamstown 6140, South Africa
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49
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Valbuena-Ureña E, Oromi N, Soler-Membrives A, Carranza S, Amat F, Camarasa S, Denoël M, Guillaume O, Sanuy D, Loyau A, Schmeller DS, Steinfartz S. Jailed in the mountains: Genetic diversity and structure of an endemic newt species across the Pyrenees. PLoS One 2018; 13:e0200214. [PMID: 30071027 PMCID: PMC6071966 DOI: 10.1371/journal.pone.0200214] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2018] [Accepted: 06/21/2018] [Indexed: 11/30/2022] Open
Abstract
The Pyrenees represent a natural laboratory for biogeographic, evolutionary and ecological research of mountain fauna as a result of the high variety of habitats and the profound effect of the glacial and interglacial periods. There is a paucity of studies providing a detailed insight into genetic processes and better knowledge on the patterns of genetic diversity and how they are maintained under high altitude conditions. This is of particular interest when considering the course of past climate conditions and glaciations in a species which is considered site tenacious, with long generation times. Here we analyzed the genetic patterns of diversity and structure of the endemic Pyrenean brook newt (Calotriton asper) along its distribution range, with special emphasis on the distinct habitat types (caves, streams, and lakes), and the altitudinal and geographical ranges, using a total set of 900 individuals from 44 different localities across the Pyrenean mountain range genotyped for 19 microsatellite loci. We found evidence for a negative longitudinal and positive altitudinal gradient of genetic diversity in C. asper populations. The fact that genetic diversity was markedly higher westwards is in accordance with other Pyrenean species. However, the impact of altitudinal gradient on the genetic diversity seems to differ from other species, and mostly from other amphibians. We found that lower altitudes can act as a barrier probably because the lowlands do not provide a suitable habitat for C. asper. Regarding the distinct habitat types, caves had significantly lower values of genetic diversity compared to streams or lakes. The mean FST value was relatively high (0.304) with maximum values as high as 0.771, suggesting a highly structured total population. Indeed, populations were grouped into five subclusters, the eastern populations (cluster 1) remained grouped into two subclusters and the central-western Pyrenees (cluster 2) into three subclusters. The increase of isolation with geographical distance is consistent with the population structure detected. In conclusion, C. asper seems to be adapted to high altitude mountain habitats, and its genetic diversity is higher in the western Pyrenees. In terms of conservation priority, we consider more relevant the populations that represent a reservoir of genetic diversity.
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Affiliation(s)
- Emilio Valbuena-Ureña
- Unitat de Zoologia, Facultat de Biociències, Universitat Autònoma de Barcelona, Cerdanyola del Vallès (Barcelona), Catalonia, Spain
- Centre de Fauna Salvatge de Torreferrussa (Catalan Wildlife Service–Forestal Catalana), Barcelona, Catalonia, Spain
| | - Neus Oromi
- Departament de Ciència Animal (Fauna Silvestre), Universitat de Lleida, Lleida, Catalonia, Spain
| | - Anna Soler-Membrives
- Unitat de Zoologia, Facultat de Biociències, Universitat Autònoma de Barcelona, Cerdanyola del Vallès (Barcelona), Catalonia, Spain
- * E-mail: (ASM); (SS)
| | - Salvador Carranza
- Institute of Evolutionary Biology (CSIC-Universitat Pompeu Fabra), Barcelona, Spain
| | - Fèlix Amat
- Àrea d’Herpetologia, Museu de Granollers, Ciències Naturals, Granollers, Catalonia, Spain
| | - Sebastià Camarasa
- Departament de Ciència Animal (Fauna Silvestre), Universitat de Lleida, Lleida, Catalonia, Spain
| | - Mathieu Denoël
- Laboratory of Fish and Amphibian Ethology, Behavioural Biology Group, Freshwater and OCeanic science Unit of reSearch (FOCUS), University of Liège, Liège, Belgium
| | - Olivier Guillaume
- Station d'Ecologie Théorique et Expérimentale CNRS-Université de Toulouse, Moulis, France
| | - Delfí Sanuy
- Departament de Ciència Animal (Fauna Silvestre), Universitat de Lleida, Lleida, Catalonia, Spain
| | - Adeline Loyau
- Helmholtz Centre for Environmental Research–UFZ, Department of Conservation Biology, Leipzig, Germany
- EcoLab, Université de Toulouse, CNRS, INPT, UPS, Toulouse, France
| | - Dirk S. Schmeller
- Helmholtz Centre for Environmental Research–UFZ, Department of Conservation Biology, Leipzig, Germany
- EcoLab, Université de Toulouse, CNRS, INPT, UPS, Toulouse, France
| | - Sebastian Steinfartz
- Zoological Institute, Department of Evolutionary Biology, Unit of Molecular Ecology, Technische Universität Braunschweig, Braunschweig, Germany
- * E-mail: (ASM); (SS)
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50
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Chen See JR, Ulrich N, Nwanosike H, McLimans CJ, Tokarev V, Wright JR, Campa MF, Grant CJ, Hazen TC, Niles JM, Ressler D, Lamendella R. Bacterial Biomarkers of Marcellus Shale Activity in Pennsylvania. Front Microbiol 2018; 9:1697. [PMID: 30116227 PMCID: PMC6083035 DOI: 10.3389/fmicb.2018.01697] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2018] [Accepted: 07/09/2018] [Indexed: 01/24/2023] Open
Abstract
Unconventional oil and gas (UOG) extraction, also known as hydraulic fracturing, is becoming more prevalent with the increasing use and demand for natural gas; however, the full extent of its environmental impacts is still unknown. Here we measured physicochemical properties and bacterial community composition of sediment samples taken from twenty-eight streams within the Marcellus shale formation in northeastern Pennsylvania differentially impacted by hydraulic fracturing activities. Fourteen of the streams were classified as UOG+, and thirteen were classified as UOG- based on the presence of UOG extraction in their respective watersheds. One stream was located in a watershed that previously had UOG extraction activities but was recently abandoned. We utilized high-throughput sequencing of the 16S rRNA gene to infer differences in sediment aquatic bacterial community structure between UOG+ and UOG- streams, as well as correlate bacterial community structure to physicochemical water parameters. Although overall alpha and beta diversity differences were not observed, there were a plethora of significantly enriched operational taxonomic units (OTUs) within UOG+ and UOG- samples. Our biomarker analysis revealed many of the bacterial taxa enriched in UOG+ streams can live in saline conditions, such as Rubrobacteraceae. In addition, several bacterial taxa capable of hydrocarbon degradation were also enriched in UOG+ samples, including Oceanospirillaceae. Methanotrophic taxa, such as Methylococcales, were significantly enriched as well. Several taxa that were identified as enriched in these samples were enriched in samples taken from different streams in 2014; moreover, partial least squares discriminant analysis (PLS-DA) revealed clustering between streams from the different studies based on the presence of hydraulic fracturing along the second axis. This study revealed significant differences between bacterial assemblages within stream sediments of UOG+ and UOG- streams and identified several potential biomarkers for evaluating and monitoring the response of autochthonous bacterial communities to potential hydraulic fracturing impacts.
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Affiliation(s)
- Jeremy R Chen See
- Department of Biology, Juniata College, Huntingdon, PA, United States
| | - Nikea Ulrich
- Department of Biology, Juniata College, Huntingdon, PA, United States
| | | | | | - Vasily Tokarev
- Department of Biology, Juniata College, Huntingdon, PA, United States
| | - Justin R Wright
- Department of Biology, Juniata College, Huntingdon, PA, United States
| | - Maria F Campa
- The Bredesen Center, The University of Tennessee, Knoxville, Knoxville, TN, United States
| | | | - Terry C Hazen
- The Bredesen Center, The University of Tennessee, Knoxville, Knoxville, TN, United States.,Department of Civil and Environmental Engineering, The University of Tennessee, Knoxville, Knoxville, TN, United States.,Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, TN, United States
| | - Jonathan M Niles
- Freshwater Research Initiative, Susquehanna University, Selinsgrove, PA, United States
| | - Daniel Ressler
- Department of Earth and Environmental Sciences, Susquehanna University, Selinsgrove, PA, United States
| | - Regina Lamendella
- Department of Biology, Juniata College, Huntingdon, PA, United States
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