Modeling whole body trace metal concentrations in aquatic invertebrate communities: A trait-based approach

Article Article scientifique Article Modeling whole body trace metal concentrations in aquatic invertebrate communities: A trait-based approach eng 2018 author Hug Peter Dorothea 641453 author Sardy Sylvain 629017 author Diaz Rodriguez Jairo 783014 author Castella Emmanuel 0000-0002-4115-4124 29171 author Slaveykova Vera 0000-0002-8361-2509 510054 419-428 10.1016/j.envpol.2017.10.044 0269-7491 http://linkinghub.elsevier.com/retrieve/pii/S0269749117322595 Trace metal risk assessment and environmental quality standard definition require realistic models that quantify metal exposure and accumulation by biota. In the present study we propose a novel trait-based approach to predict whole body concentrations of metals in aquatic invertebrates from concentrations measured in different environmental compartments. Field data from a large riverine floodplain was used to calibrate and test the model. The prediction performance of the trait-based model was unbiased and uncertainty was below the twofold of measured concentrations for the four studied metals (Ni, Cu, Cd, Pb). The relative contribution of feeding, respiration and locomotion patterns as well as metal concentrations in three environmental compartments provided insights into the importance of different uptake pathways. The relation with the sediment (i.e., to what degree taxa live in or directly on the sediment) was shown to be the most important trait to predict metal accumulation. Overall, this study demonstrated the potential use of bioecological traits for the modeling of whole body metal concentrations of entire aquatic invertebrate communities. Trace elements Aquatic invertebrates Traits Bioaccumulation Riverine floodplain Dewey 333.7-333.9 Dewey 510 Dewey 550 18 Institut des sciences de l'environnement 0DB 25 Section de mathématiques 11 41 Département F.-A. Forel des sciences de l'environnement et de l'eau 153 false 756 Ecology and Aquatic Biology 752 Environmental Biogeochemistry and Ecotoxicology 944 ISE Eau 938 ISE Pôle Sciences Environmental Pollution 233 c201618e-b166-4f0f-a4a3-e1c3c669a8d6 Article (Published version) Restricted 1-s2.0-S0269749117322595-main.pdf 683257 application/pdf restrictedAccess Centres et instituts / Institut des sciences de l'environnement Faculté des sciences / Section de mathématiques Faculté des sciences / Section des sciences de la Terre et de l'Environnement / Département F.-A. Forel des sciences de l'environnement et de l'eau

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Thresholding in high dimensional statistics: an application in testing and Cosmology		2018	660	221
Modeling whole body trace metal concentrations in aquatic invertebrate communities: A trait-based approach	Environmental Pollution	2018	1 776	9

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Diaz Rodriguez, Jairo