Cephalopods as a key of the transfer of cadmium to top marine predators

International audience Cephalopods of 11 species differing in their geographic distribution (French , Irish and faroese waters) and feeding habitats, were analysed for their cadmium contents. When comparing the cadmium levels of these cephalopods, it show that the squid Todarodes sagittatus and the...

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Bibliographic Details
Published in:Science of The Total Environment
Main Authors: Bustamante, Paco, Caurant, Florence, Fowler, Scott, Miramand, Pierre
Other Authors: LIttoral ENvironnement et Sociétés - UMRi 7266 (LIENSs), Université de La Rochelle (ULR)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de biologie et environnement marins - LBEM (LBEML), Marine Environment Laboratories Monaco (IAEA-MEL), International Atomic Energy Agency Vienna (IAEA), Financement Région Poitou-Charentes
Format: Article in Journal/Newspaper
Language:English
Published: HAL CCSD 1998
Subjects:
Cephalopods
Sub-Arctic
Heavy metals
Cadmium
Transfer
Top predators
Seabirds
Marine mammals
Dose
[SDV.TOX.ECO]Life Sciences [q-bio]/Toxicology/Ecotoxicology
Arctic
Faroe Islands
Online Access:https://hal.archives-ouvertes.fr/hal-00179544
https://hal.archives-ouvertes.fr/hal-00179544/document
https://hal.archives-ouvertes.fr/hal-00179544/file/Bustamante_et_al._1998.pdf
https://doi.org/10.1016/S0048-9697(98)00250-2
Description
Summary:International audience Cephalopods of 11 species differing in their geographic distribution (French , Irish and faroese waters) and feeding habitats, were analysed for their cadmium contents. When comparing the cadmium levels of these cephalopods, it show that the squid Todarodes sagittatus and the octopus Eledone cirrhosa coming from the Faroe Islands contain respectively 17 and 18 times more than the animals from the French Atlantic coast. High cadmium levels in cephalopods from sub-polar areas were related with high cadmium concentrations in the tissues of top predators in these areas. Weekly doses of cadmium were estimated for the Faroese pilot whales and the Adélie Penguins and were compared to the “Provisional Tolerable Weekly Intake” defined by the World Health Organisation for humans. Our results show that cephalopods constitute an important source of cadmium for cephalopods predators.

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