1
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Prosnier L. Zooplankton as a model to study the effects of anthropogenic sounds on aquatic ecosystems. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 928:172489. [PMID: 38621539 DOI: 10.1016/j.scitotenv.2024.172489] [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: 07/12/2023] [Revised: 03/23/2024] [Accepted: 04/12/2024] [Indexed: 04/17/2024]
Abstract
There is a growing interest in the impact of acoustic pollution on aquatic ecosystems. Currently, research has primarily focused on hearing species, particularly fishes and mammals. However, species from lower trophic levels, including many invertebrates, are less studied despite their ecological significance. Among these taxa, studies examining the effects of sound on holozooplankton are extremely rare. This literature review examines the effects of sound on both marine and freshwater zooplankton. It highlights two differences: the few used organisms and the types of sound source. Marine studies focus on the effects of very intense acute sound on copepods, while freshwater studies focus on less intense chronic sound on cladocerans. But, in both, various negative effects are reported. The effects of sound remain largely unknown, although previous studies have shown that zooplankton can detect vibrations using mechanoreceptors. The perception of their environment can be affected by sounds, potentially causing stress. Limited research suggests that sound may affect the physiology, behaviour, and fitness of zooplankton. Following this review, I highlight the potential to use methods from ecology, ecotoxicology, and parasitology to study the effects of sound at the individual level, including changes in physiology, development, survival, and behaviour. Responses to sound, which could alter species interactions and population dynamics, are expected to have larger-scale implications with bottom-up effects, such as changes in food web dynamics and ecosystem functioning. To improve the study of the effect of sound, to better use zooplankton as biological models and as bioindicators, researchers need to better understand how they perceive their acoustic environment. Consequently, an important challenge is the measurement of particle motion to establish useable dose-response relationships and particle motion soundscapes.
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Affiliation(s)
- Loïc Prosnier
- Faculté des Sciences et Techniques, University of Saint Etienne, Saint-Etienne, France; France Travail, Saint-Etienne, France.
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2
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Sigmund G, Ågerstrand M, Antonelli A, Backhaus T, Brodin T, Diamond ML, Erdelen WR, Evers DC, Hofmann T, Hueffer T, Lai A, Torres JPM, Mueller L, Perrigo AL, Rillig MC, Schaeffer A, Scheringer M, Schirmer K, Tlili A, Soehl A, Triebskorn R, Vlahos P, Vom Berg C, Wang Z, Groh KJ. Addressing chemical pollution in biodiversity research. GLOBAL CHANGE BIOLOGY 2023; 29:3240-3255. [PMID: 36943240 DOI: 10.1111/gcb.16689] [Citation(s) in RCA: 26] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Accepted: 03/12/2023] [Indexed: 05/16/2023]
Abstract
Climate change, biodiversity loss, and chemical pollution are planetary-scale emergencies requiring urgent mitigation actions. As these "triple crises" are deeply interlinked, they need to be tackled in an integrative manner. However, while climate change and biodiversity are often studied together, chemical pollution as a global change factor contributing to worldwide biodiversity loss has received much less attention in biodiversity research so far. Here, we review evidence showing that the multifaceted effects of anthropogenic chemicals in the environment are posing a growing threat to biodiversity and ecosystems. Therefore, failure to account for pollution effects may significantly undermine the success of biodiversity protection efforts. We argue that progress in understanding and counteracting the negative impact of chemical pollution on biodiversity requires collective efforts of scientists from different disciplines, including but not limited to ecology, ecotoxicology, and environmental chemistry. Importantly, recent developments in these fields have now enabled comprehensive studies that could efficiently address the manifold interactions between chemicals and ecosystems. Based on their experience with intricate studies of biodiversity, ecologists are well equipped to embrace the additional challenge of chemical complexity through interdisciplinary collaborations. This offers a unique opportunity to jointly advance a seminal frontier in pollution ecology and facilitate the development of innovative solutions for environmental protection.
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Affiliation(s)
- Gabriel Sigmund
- Department of Environmental Geosciences, Centre for Microbiology and Environmental Systems Science, University of Vienna, Vienna, 1090, Austria
| | - Marlene Ågerstrand
- Department of Environmental Science, Stockholm University, Stockholm, Sweden
| | - Alexandre Antonelli
- Royal Botanic Gardens, Kew, Richmond, Surrey, TW9 3AE, UK
- Department of Biological and Environmental Sciences, University of Gothenburg, 40530, Gothenburg, Sweden
- Department of Biology, University of Oxford, South Parks Road, OX1 3RB, Oxford, UK
- Gothenburg Global Biodiversity Centre, 40530, Gothenburg, Sweden
| | - Thomas Backhaus
- Department of Biological and Environmental Sciences, University of Gothenburg, 40530, Gothenburg, Sweden
| | - Tomas Brodin
- Department of Wildlife, Fish, and Environmental Studies, Swedish University of Agricultural Sciences, 90187, Umeå, Sweden
| | - Miriam L Diamond
- Department of Earth Sciences and School of the Environment, University of Toronto, Toronto, Ontario, M5S 3B1, Canada
| | | | - David C Evers
- Biodiversity Research Institute, Portland, Maine, 04103, USA
| | - Thilo Hofmann
- Department of Environmental Geosciences, Centre for Microbiology and Environmental Systems Science, University of Vienna, Vienna, 1090, Austria
| | - Thorsten Hueffer
- Department of Environmental Geosciences, Centre for Microbiology and Environmental Systems Science, University of Vienna, Vienna, 1090, Austria
| | - Adelene Lai
- Luxembourg Centre for Systems Biomedicine (LCSB), University of Luxembourg, 6 avenue du Swing, 4367, Belvaux, Luxembourg
- Institute for Inorganic and Analytical Chemistry, Friedrich-Schiller University, Lessing Strasse 8, 07743, Jena, Germany
| | - Joao P M Torres
- Laboratório de Micropoluentes Jan Japenga, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Leonie Mueller
- Institute for Environmental Research, RWTH Aachen University, 52074, Aachen, Germany
| | - Allison L Perrigo
- Department of Biological and Environmental Sciences, University of Gothenburg, 40530, Gothenburg, Sweden
- Gothenburg Global Biodiversity Centre, 40530, Gothenburg, Sweden
- Lund University Botanical Garden, Lund, Sweden
| | - Matthias C Rillig
- Freie Universität Berlin, Institut für Biologie, Altensteinstr. 6, 14195, Berlin, Germany
- Berlin-Brandenburg Institute of Advanced Biodiversity Research (BBIB), 14195, Berlin, Germany
| | - Andreas Schaeffer
- Institute for Environmental Research, RWTH Aachen University, 52074, Aachen, Germany
- School of the Environment, State Key Laboratory of Pollution Control and Resource Reuse, 210023, Nanjing, China
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Chongqing University, 400045, Chongqing, China
| | - Martin Scheringer
- RECETOX, Masaryk University, 62500, Brno, Czech Republic
- ETH Zürich, Institute of Biogeochemistry and Pollutant Dynamics, 8092, Zürich, Switzerland
| | - Kristin Schirmer
- ETH Zürich, Institute of Biogeochemistry and Pollutant Dynamics, 8092, Zürich, Switzerland
- Eawag, Swiss Federal Institute of Aquatic Science and Technology, 8600, Dübendorf, Switzerland
- School of Architecture, Civil and Environmental Engineering, EPF Lausanne, 1015, Lausanne, Switzerland
| | - Ahmed Tlili
- Eawag, Swiss Federal Institute of Aquatic Science and Technology, 8600, Dübendorf, Switzerland
| | - Anna Soehl
- International Panel on Chemical Pollution, 8092, Zürich, Switzerland
| | - Rita Triebskorn
- Animal Physiological Ecology, University of Tübingen, Auf der Morgenstelle 5, D-72076, Tübingen, Germany
- Transfer Center Ecotoxicology and Ecophysiology, Blumenstr. 13, D-72108, Rottenburg, Germany
| | - Penny Vlahos
- Department of Marine Sciences, University of Connecticut, Groton, Connecticut, USA
| | - Colette Vom Berg
- Eawag, Swiss Federal Institute of Aquatic Science and Technology, 8600, Dübendorf, Switzerland
| | - Zhanyun Wang
- Empa - Swiss Federal Laboratories for Materials Science and Technology, Technology and Society Laboratory, CH-9014, St. Gallen, Switzerland
| | - Ksenia J Groh
- Eawag, Swiss Federal Institute of Aquatic Science and Technology, 8600, Dübendorf, Switzerland
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3
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Vijayaraj V, Laviale M, Allen J, Amoussou N, Hilt S, Hölker F, Kipferler N, Leflaive J, López Moreira M GA, Polst BH, Schmitt-Jansen M, Stibor H, Gross EM. Multiple-stressor exposure of aquatic food webs: Nitrate and warming modulate the effect of pesticides. WATER RESEARCH 2022; 216:118325. [PMID: 35349923 DOI: 10.1016/j.watres.2022.118325] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 02/18/2022] [Accepted: 03/17/2022] [Indexed: 06/14/2023]
Abstract
Shallow lakes provide essential ecological and environmental services but are exposed to multiple stressors, including agricultural runoff (ARO) and climate warming, which may act on different target receptors disrupting their normal functioning. We performed a microcosm experiment to determine the individual and combined effects of three stressors-pesticides, nitrate and climate warming-on two trophic levels representative of communities found in shallow lakes. We used three submerged macrophyte species (Myriophyllum spicatum, Potamogeton perfoliatus, Elodea nuttallii), eight benthic or pelagic microalgal species and three primary consumer species (Daphnia magna, Lymnaea stagnalis, Dreissena polymorpha) with different feeding preferences for benthic and pelagic primary producers. Eight different treatments consisted of a control, only nitrate, a pesticide cocktail, and a combination of nitrate and pesticides representing ARO, each replicated at ambient temperature and +3.5°C, mimicking climate warming. Pesticides negatively affected all functional groups except phytoplankton, which increased. Warming and nitrate modified these effects. Strong but opposite pesticide and warming effects on Myriophyllum drove the response of the total macrophyte biomass. Nitrate significantly suppressed Myriophyllum final biomass, but not overall macrophyte and microalgal biomass. Nitrate and pesticides in combination caused a macrophyte decline, and the system tipped towards phytoplankton dominance. Strong synergistic or even reversed stressor interaction effects were observed for macrophytes or periphyton. We emphasize the need for more complex community- and ecosystem-level studies incorporating multiple stressor scenarios to define safe operating spaces.
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Affiliation(s)
- Vinita Vijayaraj
- Université de Lorraine, CNRS, LIEC, F-57000 Metz, France; LTSER-Zone Atelier Moselle, F-57000 Metz, France
| | - Martin Laviale
- Université de Lorraine, CNRS, LIEC, F-57000 Metz, France; LTSER-Zone Atelier Moselle, F-57000 Metz, France
| | - Joey Allen
- Université de Lorraine, CNRS, LIEC, F-57000 Metz, France; Université de Toulouse, Laboratoire Ecologie Fonctionnelle et Environnement UMR 5245 CNRS, Toulouse, France
| | | | - Sabine Hilt
- Leibniz-Institute of Freshwater Ecology and Inland Fisheries, Berlin, Germany
| | - Franz Hölker
- Leibniz-Institute of Freshwater Ecology and Inland Fisheries, Berlin, Germany
| | - Nora Kipferler
- Ludwig-Maximilians University Munich, Department of Biology, Munich, Germany
| | - Joséphine Leflaive
- Université de Toulouse, Laboratoire Ecologie Fonctionnelle et Environnement UMR 5245 CNRS, Toulouse, France
| | | | - Bastian H Polst
- Helmholtz-Centre for Environmental Research - UFZ, Department of Bioanalytical Ecotoxicology, Leipzig, Germany
| | - Mechthild Schmitt-Jansen
- Helmholtz-Centre for Environmental Research - UFZ, Department of Bioanalytical Ecotoxicology, Leipzig, Germany
| | - Herwig Stibor
- Ludwig-Maximilians University Munich, Department of Biology, Munich, Germany
| | - Elisabeth M Gross
- Université de Lorraine, CNRS, LIEC, F-57000 Metz, France; LTSER-Zone Atelier Moselle, F-57000 Metz, France.
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4
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Banerjee S, Saha B, Rietkerk M, Baudena M, Chattopadhyay J. Chemical contamination-mediated regime shifts in planktonic systems. THEOR ECOL-NETH 2021. [DOI: 10.1007/s12080-021-00516-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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5
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Cao Q, Liu W, Gu Y, Xie L, Jiang W, Gao Y, Yang L. Synergetic enhancement toxicity of copper, cadmium and microcystin-LR to the Ceratophyllum demersum L. Toxicon 2020; 186:151-159. [PMID: 32798503 DOI: 10.1016/j.toxicon.2020.08.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Revised: 07/20/2020] [Accepted: 08/12/2020] [Indexed: 11/28/2022]
Abstract
Heavy metals and microcystins commonly co-exist in water bodies with cyanobacteria, and have been shown to affect aquatic plants. However, their combined effects remain largely unknown. In this study, the toxic effects of copper (Cu) and cadmium (Cd) on Ceratophyllum demersum L. were characterized in the presence of microcystin-LR (MC-LR). The results showed that the bioaccumulation of MC-LR and Cu/Cd in C. demersum was significantly increased by the interaction between MC-LR and Cu/Cd. The combined toxicity assessment results suggested that the toxicities of Cu or Cd to C. demersum would be largely exacerbated by MC-LR, which could be the results of increased bioaccumulation of the pollutants. Cu, Cd and MC-LR, as well as their mixture, significantly decreased plant fresh weight and total chlorophyll content of C. demersum, especially at their high concentrations. The antioxidative system was activated to cope with the adverse effects of oxidative stress. Antioxidant enzyme activities were significantly stimulated by Cu, Cd and MC-LR, as well as their mixture. However, the decreased superoxide dismutase (SOD) and glutathione reductase (GR) activities were observed when exposed to relative high concentrations of Cu or Cd together with MC-LR of 5 μg L-1. MC-LR brought more stress to the antioxidative system, which is another possible explanation for the synergistic effect. Our findings highlight increased ecological risks of the co-contamination of heavy metals and harmful cyanobacteria.
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Affiliation(s)
- Qing Cao
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, 163 Xianlin Avenue, Nanjing, 210023, China; State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, 73 East Beijing Road, Nanjing, 210008, China; Jiangsu Provincial Key Laboratory of Environmental Engineering, Jiangsu Provincial Academy of Environmental Science, 176 North Jiangdong Road, Nanjing, 210036, China
| | - Weijing Liu
- Jiangsu Provincial Key Laboratory of Environmental Engineering, Jiangsu Provincial Academy of Environmental Science, 176 North Jiangdong Road, Nanjing, 210036, China
| | - Yurong Gu
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, 73 East Beijing Road, Nanjing, 210008, China
| | - Liqiang Xie
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, 73 East Beijing Road, Nanjing, 210008, China
| | - Weili Jiang
- Jiangsu Provincial Key Laboratory of Environmental Engineering, Jiangsu Provincial Academy of Environmental Science, 176 North Jiangdong Road, Nanjing, 210036, China
| | - Yan Gao
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, 163 Xianlin Avenue, Nanjing, 210023, China
| | - Liuyan Yang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, 163 Xianlin Avenue, Nanjing, 210023, China.
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6
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Richon C, Tagliabue A. Insights Into the Major Processes Driving the Global Distribution of Copper in the Ocean From a Global Model. GLOBAL BIOGEOCHEMICAL CYCLES 2019; 33:1594-1610. [PMID: 32055101 PMCID: PMC7004168 DOI: 10.1029/2019gb006280] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Revised: 07/31/2019] [Accepted: 07/31/2019] [Indexed: 05/24/2023]
Abstract
Copper (Cu) is an unusual micronutrient as it can limit primary production but can also become toxic for growth and cellular functioning under high concentrations. Cu also displays an atypical linear profile, which will modulate its availability to marine microbes across the ocean. Multiple chemical forms of Cu coexist in seawater as dissolved species and understanding the main processes shaping the Cu biogeochemical cycling is hampered by key knowledge gaps. For instance, the drivers of its specific linear profile in seawater are unknown, and the bioavailable form of Cu for marine phytoplankton is debated. Here we developed a global 3-D biogeochemical model of oceanic Cu within the NEMO/PISCES global model, which represents the global distribution of dissolved copper well. Using our model, we find that reversible scavenging of Cu by organic particles drives the dissolved Cu vertical profile and its distribution in the deep ocean. The low modeled inorganic copper (Cu') in the surface ocean means that Cu' cannot maintain phytoplankton cellular copper requirements within observed ranges. The global budget of oceanic Cu from our model suggests that its residence time may be shorter than previously estimated and provides a global perspective on Cu cycling and the main drivers of Cu biogeochemistry in different regions. Cu scavenging within particle microenvironments and uptake by denitrifying bacteria could be a significant component of Cu cycling in oxygen minimum zones.
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Affiliation(s)
- Camille Richon
- School of Environmental SciencesUniversity of LiverpoolLiverpoolUK
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7
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Banerjee S, Sarkar RR, Chattopadhyay J. Effect of copper contamination on zooplankton epidemics. J Theor Biol 2019; 469:61-74. [PMID: 30817925 DOI: 10.1016/j.jtbi.2019.02.016] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Revised: 02/18/2019] [Accepted: 02/22/2019] [Indexed: 11/18/2022]
Abstract
Infectious disease and chemical contamination are increasingly becoming vital issues in many ecosystems. However, studies integrating the two are surprisingly rare. Contamination not only affects the inherent host-resource interaction which influences the epidemic process but may also directly affect epidemiological traits via changes in host's behaviour. The fact that heavy metal such as copper is also an essential trace element for organisms, further increase complexity which make predicting the resultant effect of contamination and disease spread difficult. Motivated by this, we model the effect of copper enrichment on a phytoplankton-zooplankton-fungus system. We show that extremely deficient or toxic copper may have a destabilizing effect on the underlying host-resource dynamics due to increased relative energy fluxes as a result of low host mortality due to fish predation. Further, on incorporating disease into the system, we find that the system can become disease-free for an intermediate range of copper concentration whereas it may persist for very less copper enrichment. Also, we predict that there may exist vulnerable regions of copper concentration near the toxic and deficient levels, where the parasite can invade the system for a comparatively lower spore yield. Overall, our results demonstrate that, the effect of contamination may be fundamental to understanding disease progression in community ecology.
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Affiliation(s)
- Swarnendu Banerjee
- Agricultural and Ecological Research Unit, Indian Statistical Institute, 203, B. T. Road, Kolkata 700108, India
| | - Ram Rup Sarkar
- Chemical Engineering and Process Development, CSIR-National Chemical Laboratory, Pune 411008, Maharashtra, India; Academy of Scientific & Innovative Research (AcSIR), CSIR-NCL Campus, Pune, India
| | - Joydev Chattopadhyay
- Agricultural and Ecological Research Unit, Indian Statistical Institute, 203, B. T. Road, Kolkata 700108, India.
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8
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Application of an AQUATOX model for direct toxic effects and indirect ecological effects assessment of Polycyclic aromatic hydrocarbons (PAHs) in a plateau eutrophication lake, China. Ecol Modell 2018. [DOI: 10.1016/j.ecolmodel.2018.09.019] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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9
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Effects of contaminants and trophic cascade regulation on food chain stability: Application to cadmium soil pollution on small mammals – Raptor systems. Ecol Modell 2018. [DOI: 10.1016/j.ecolmodel.2018.05.002] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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10
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Ringot G, Gasparini J, Wagner M, Cheikh Albassatneh M, Frantz A. More and smaller resting eggs along a gradient for pollution by metals: dispersal, dormancy and detoxification strategies in Daphnia? Biol J Linn Soc Lond 2018. [DOI: 10.1093/biolinnean/bly026] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Affiliation(s)
- Gabrielle Ringot
- Sorbonne Universités, Université Paris Diderot, Université Paris-Est Créteil, CNRS, INRA, IRD, Institute of Ecology and Environmental Science – Paris (iEES-Paris), Campus Pierre et Marie Curie, 4 place Jussieu, Paris, France
| | - Julien Gasparini
- Sorbonne Universités, Université Paris Diderot, Université Paris-Est Créteil, CNRS, INRA, IRD, Institute of Ecology and Environmental Science – Paris (iEES-Paris), Campus Pierre et Marie Curie, 4 place Jussieu, Paris, France
| | - Marie Wagner
- Sorbonne Universités, Université Paris Diderot, Université Paris-Est Créteil, CNRS, INRA, IRD, Institute of Ecology and Environmental Science – Paris (iEES-Paris), Campus Pierre et Marie Curie, 4 place Jussieu, Paris, France
| | - Marwan Cheikh Albassatneh
- Sorbonne Universités, Université Paris Diderot, Université Paris-Est Créteil, CNRS, INRA, IRD, Institute of Ecology and Environmental Science – Paris (iEES-Paris), Campus Pierre et Marie Curie, 4 place Jussieu, Paris, France
| | - Adrien Frantz
- Sorbonne Universités, Université Paris Diderot, Université Paris-Est Créteil, CNRS, INRA, IRD, Institute of Ecology and Environmental Science – Paris (iEES-Paris), Campus Pierre et Marie Curie, 4 place Jussieu, Paris, France
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11
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Stevenson RW, Chapman PM. Integrating causation in investigative ecological weight of evidence assessments. INTEGRATED ENVIRONMENTAL ASSESSMENT AND MANAGEMENT 2017; 13:702-713. [PMID: 27787954 DOI: 10.1002/ieam.1861] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2015] [Revised: 03/24/2016] [Accepted: 10/25/2016] [Indexed: 06/06/2023]
Abstract
Weight of evidence (WOE) frameworks integrate environmental assessment data to reach conclusions regarding relative certainty of adverse environmental effects due to stressors, possible causation, and key uncertainties. Such studies can be investigative (i.e., determining whether adverse impact is occurring to identify a need for management) or retrospective (i.e., determining the cause of a detected impact such that management efforts focus on the correct stressor). Such WOE assessments do not themselves definitively establish causation; they provide the basis for subsequent follow-up studies to further investigate causation. We propose a modified investigative WOE framework that includes an additional weighting step, which we term "direction weighting." This additional step allows for the examination of alternative hypotheses and provides improved certainty regarding possible causation. To our knowledge, this approach has not been previously applied in investigative ecological WOE assessments. We provide a generic example of 2 conflicting hypotheses related to a mine discharging treated effluent to a freshwater lake: chemical toxicity versus nutrient enrichment. Integr Environ Assess Manag 2017;13:702-713. © 2016 SETAC.
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Affiliation(s)
| | - Peter M Chapman
- Chapema Environmental Strategies, North Vancouver, British Columbia, Canada
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12
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Rocha GS, Tonietto AE, Lombardi AT, Melão MDGG. Effect of copper contaminated food on the life cycle and secondary production of Daphnia laevis. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2016; 133:235-242. [PMID: 27472028 DOI: 10.1016/j.ecoenv.2016.07.011] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2016] [Revised: 07/07/2016] [Accepted: 07/11/2016] [Indexed: 06/06/2023]
Abstract
In aquatic environments, copper (Cu) plays important physiological roles in planktonic food chain, such as electron transfer in photosynthesis and constituting proteins that transport oxygen in some arthropods, while at higher concentrations it is toxic on these organisms and higher trophic levels. The combined effects of natural (e.g. volcanic activity) and anthropogenic sources (e.g. mining waste) contribute to the increase in copper pollution in different ecosystems and regions around the world. In the present study, we evaluated the bioaccumulation and effect of Cu on Raphidocelis subcapitata (freshwater algae), and the influence of Cu-contaminated food (algae) on Daphnia laevis (tropical cladoceran). The amount of copper accumulated in microalgae and cladoceran was quantified, and life-history parameters of D. laevis such as growth, reproduction and longevity were measured. The cell density of Cu exposed R. subcapitata declined, and cladoceran fed with contaminated food had lower longevity, production of eggs and neonates, and reduced secondary production. A concentration dependent increase in Cu accumulation was observed in the microalgae, while the opposite occurred in the animal, indicating a cellular metal regulatory mechanism in the latter. However, this regulation seems not to be sufficient to avoid metal induced damages in the cladoceran such as decreased longevity and reproduction. We conclude that diet is an important metal exposure route to this cladoceran, and the assessment of chronic contamination during the complete life cycle of cladoceran provides results that are similar to those observed in natural environments, especially when native organisms are investigated.
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Affiliation(s)
- Giseli S Rocha
- Departamento de Hidrobiologia, Centro de Ciências Biológicas e da Saúde (CCBS), Universidade Federal de São Carlos (UFSCar), Rodovia Washington Luís, Km 235, CEP 13565-905 São Carlos, SP, Brazil.
| | - Alessandra E Tonietto
- Departamento de Botânica, CCBS, UFSCar, Rodovia Washington Luís, Km 235, CEP 13565-905 São Carlos, SP, Brazil
| | - Ana T Lombardi
- Departamento de Botânica, CCBS, UFSCar, Rodovia Washington Luís, Km 235, CEP 13565-905 São Carlos, SP, Brazil
| | - Maria da G G Melão
- Departamento de Hidrobiologia, Centro de Ciências Biológicas e da Saúde (CCBS), Universidade Federal de São Carlos (UFSCar), Rodovia Washington Luís, Km 235, CEP 13565-905 São Carlos, SP, Brazil
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13
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Calbet A, Schmoker C, Russo F, Trottet A, Mahjoub MS, Larsen O, Tong HY, Drillet G. Non-proportional bioaccumulation of trace metals and metalloids in the planktonic food web of two Singapore coastal marine inlets with contrasting water residence times. THE SCIENCE OF THE TOTAL ENVIRONMENT 2016; 560-561:284-294. [PMID: 27104581 DOI: 10.1016/j.scitotenv.2016.03.234] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2015] [Revised: 03/30/2016] [Accepted: 03/30/2016] [Indexed: 06/05/2023]
Abstract
We analyzed the concentrations of trace metals/metalloids (TMs) in the water, sediment and plankton of two semi-enclosed marine coastal inlets located north of Jurong Island and separated by a causeway (SW Singapore; May 2012-April 2013). The west side of the causeway (west station) has residence times of approximately one year, and the east side of the causeway (east station) has residence times of one month. The concentrations of most of the TMs in water and sediment were higher in the west than in the east station. In the water column, most of the TMs were homogeneously distributed or had higher concentrations at the surface. Preliminary evidence suggests that the TMs are primarily derived from aerosol depositions from oil combustion and industry. Analyses of TMs in seston (>0.7μm; mostly phytoplankton) and zooplankton (>100μm) revealed that the seston from the west station had higher concentrations of most TMs; however, the concentrations of TMs in zooplankton were similar at the two stations. Despite the high levels of TMs in water, sediment and seston, the bioaccumulation detected in zooplankton was moderate, suggesting either the presence of effective detoxification mechanisms or/and the inefficient transfer of TMs from primary producers to higher trophic levels as a result of the complexity of marine planktonic food webs. In summary, the TM concentrations in water and seston are not reliable indicators of the bioaccumulation at higher trophic levels of the food web.
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Affiliation(s)
- Albert Calbet
- Institut de Ciències del Mar, CSIC, Passeig Marítim de la Barceloneta 37-49, 08003 Barcelona, Spain.
| | - Claire Schmoker
- DHI-NTU Research Centre and Education Hub, 1 CleanTech Loop, #03-05 CleanTech1, 637141, Singapore
| | - Francesca Russo
- DHI-NTU Research Centre and Education Hub, 1 CleanTech Loop, #03-05 CleanTech1, 637141, Singapore
| | - Aurore Trottet
- DHI-NTU Research Centre and Education Hub, 1 CleanTech Loop, #03-05 CleanTech1, 637141, Singapore
| | - Mohamed-Sofiane Mahjoub
- DHI-NTU Research Centre and Education Hub, 1 CleanTech Loop, #03-05 CleanTech1, 637141, Singapore
| | - Ole Larsen
- DHI-NTU Research Centre and Education Hub, 1 CleanTech Loop, #03-05 CleanTech1, 637141, Singapore; DHI Water and Environment-Denmark, Agern Allé 5, 2970 Hørsholm, Denmark
| | - Hor Yee Tong
- National Parks Board HQ, 1 Cluny Road, Singapore Botanic Gardens, 259569, Singapore
| | - Guillaume Drillet
- DHI-NTU Research Centre and Education Hub, 1 CleanTech Loop, #03-05 CleanTech1, 637141, Singapore
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