FN Archimer Export Format
PT J
TI High inter-species variability in elemental composition of the twilight zone fauna varies implications for predators and exploitation by humans
BT 
AF Chouvelon, Tiphaine
   Munschy, Catherine
   Bruzac, Sandrine
   Caurant, Florence
   Churlaud, Carine
   Crochet, Sylvette
   Guillou, Gerald
   Mauffret, Aourell
   Méndez-Fernandez, Paula
   Niol, Jasmin
   Sireau, Teddy
   Steinberg, Claire
   Wessel, Nathalie
   Spitz, Jérôme
AS 1:1,2;2:3;3:2;4:1,4;5:5;6:2;7:5;8:6;9:1;10:1;11:2;12:2;13:7;14:1,4;
FF 1:PDG-RBE-BE-LBCM;2:PDG-RBE-BE-LBCO;3:PDG-RBE-BE-LBCM;4:;5:;6:PDG-RBE-BE-LBCM;7:;8:PDG-RBE-BE;9:;10:;11:PDG-RBE-BE-LBCM;12:PDG-RBE-BE-LBCM;13:PDG-ODE-VIGIES;14:;
C1 Observatoire Pelagis, UMS 3462 La Rochelle Université/CNRS, 5 Allées de L’Océan, 17000, La Rochelle, France
   Ifremer, Unité Biogéochimie et Écotoxicologie, Laboratoire de Biogéochimie des Contaminants Métalliques (BE/LBCM), Rue de L’Ile D’Yeu, BP 21105, 44311, Nantes Cedex 03, France
   Ifremer, Unité Biogéochimie et Écotoxicologie, Laboratoire de Biogéochimie des Contaminants Organiques (BE/LBCO), Rue de L’Ile D’Yeu, BP 21105, 44311, Nantes Cedex 03, France
   Centre D’Etudes Biologiques de Chizé (CEBC), UMR 7372 La Rochelle Université/CNRS, 405 Route de Prissé La Charrière, 79360, Villiers-en-Bois, France
   Littoral Environnement et Sociétés (LIENSs), UMR 7266 La Rochelle Université/CNRS, 2 Rue Olympe de Gouges, 17000, La Rochelle, France
   Ifremer, Unité Biogéochimie et Écotoxicologie (BE), Rue de L’Ile D’Yeu, BP 21105, 44311, Nantes Cedex 03, France
   Ifremer, Service Valorisation de L'Information pour La Gestion Intégrée et La Surveillance (VIGIES), Rue de L’Ile D’Yeu, BP 21105, 44311, Nantes Cedex 03, France
C2 UNIV LA ROCHELLE, FRANCE
   IFREMER, FRANCE
   IFREMER, FRANCE
   UNIV LA ROCHELLE, FRANCE
   UNIV LA ROCHELLE, FRANCE
   IFREMER, FRANCE
   IFREMER, FRANCE
SI NANTES
SE PDG-RBE-BE-LBCM
   PDG-RBE-BE-LBCO
   PDG-RBE-BE
   PDG-ODE-VIGIES
IN WOS Ifremer UPR
   copubli-france
   copubli-univ-france
IF 8.3
TC 7
UR https://archimer.ifremer.fr/doc/00735/84660/89753.pdf
   https://archimer.ifremer.fr/doc/00735/84660/89754.pdf
LA English
DT Article
CR EVHOE 2017
   EVHOE EVALUATION HALIEUTIQUE OUEST DE L'EUROPE
BO Thalassa
DE ;Mesopelagic;Energy density;Inorganic elements;Trace metals;Matter transfers;Environmental and health thresholds
AB While the importance of oceanic micronektonic species in biogeochemical cycles and in the transfer of matter in food webs is globally recognized, specific knowledge on elemental concentrations and their variability within this community is still poorly documented. Here, we report for the first time in the Bay of Biscay, North-East Atlantic, the body composition in various biological parameters and chemical elements of a meso-to bathypelagic micronektonic community. Stable carbon and nitrogen isotope compositions (δ13C, δ15N), C:N ratios, energy density, as well as the concentrations in 6 macro-minerals and 13 trace elements including essential (micro-nutrients) and non-essential elements (undesirables, with no know biological function) were measured in whole organisms of 4 crustacean and 11 fish species caught simultaneously around 800 m depth. The results showed a low variability of δ13C values, confirming that all studied species share the same habitat. On the contrary, large differences were observed among species for several elements. Trace elements showed the greatest variability (i.e. larger range of values), especially silver (Ag), arsenic (As), cadmium (Cd), cobalt and vanadium. Significant differences were also revealed among taxa for Ag, As, Cd, copper and strontium concentrations (with crustaceans > fish), as well as for δ15N values and phosphorus concentrations (with fish > crustaceans). Although concentrations varied greatly among species, they could be grouped according to their energy density and composition in 19 chemical elements, through hierarchical clustering analysis. Six functional groups of species have been thus identified, reflecting contrasted nutritional benefit and/or exposure to undesirables for predators feeding on this deep pelagic community. Finally, the concentrations measured for the potentially toxic trace elements (undesirables) exceeded the existing European thresholds for Cd and to a lesser extent mercury (Hg), which point out potential risks in the perspective of a future exploitation of these deep living resources by humans. 
PY 2022
PD MAR
SO Environmental Research
SN 0013-9351
PU Elsevier BV
VL 204
IS Part. D
UT 000730784800005
DI 10.1016/j.envres.2021.112379
ID 84660
ER

EF