FN Archimer Export Format
PT J
TI Total and organic Hg concentrations in cephalopods from the North Eastern Atlantic waters: Influence of geographical origin and feeding ecology
BT 
AF BUSTAMANTE, Paco
   LAHAYE, V
   DURNEZ, C
   CHURLAUD, C
   CAURANT, Florence
AS 1:1,3;2:1;3:1;4:2;5:1,3;
FF 1:;2:;3:;4:;5:;
C1 Univ Rochelle, CNRS, IFREMER, Ctr Rech Ecosyst Littoraux Anthropises,UMR 6217, F-17042 La Rochelle, France.
   Inst Littoral & Environm, Ctr Commun Analyses, F-17071 La Rochelle 9, France.
C2 UNIV ROCHELLE, FRANCE
   INST LITTORAL & ENVIRONM, FRANCE
   IFREMER, FRANCE
SI UNIV-FRANCAISE
SE PDG-DOP-DCN-AGSAE-CRELA
IN WOS Ifremer jusqu'en 2018
   copubli-france
   copubli-univ-france
IF 2.359
TC 141
UR https://archimer.ifremer.fr/doc/2006/publication-1873.pdf
LA English
DT Article
DE ;Cuttlefish;Octopus;Squid;Body distribution;Speciation;Bioaccumulation
AB Total (T-Hg) and organic (O-Hg) mercury concentrations and tissue distribution were examined in 20 species of cephalopods (n = 278) from the north eastern Atlantic waters, i.e. from the Bay of Biscay to the Faroe Islands. Concentrations of T-Hg in whole cephalopods showed elevated variations among species, i.e. from 40 to 3560ng g(-1) dwt, but a low variability within each species (mean CV%=39%). With the exception of oceanic squids, the digestive gland globally displayed higher T-Hg concentrations than the remaining tissues. In contrast, O-Hg concentrations determined in selected species were generally higher in the remaining tissues. Despite higher T-Hg concentrations, the digestive gland weakly contributed to the total body burden of both T-Hg and O-Hg (< 25% and < 15%, respectively). In fact, from 75% to 95% of the T-Hg and O-Mg were contained in the muscular remaining tissues. Therefore, O-Hg may have a strong affinity to proteins in cephalopods. Sex and size only significantly influenced the bioaccumulation of Hg for the Loliginidae family. T-Hg and O-Hg concentrations were also influenced by geographical origin: Celtic Sea > Bay of Biscay > Faroe Islands, corresponding to the seawater Hg concentrations in these areas. In the Faroe Islands and the Celtic Sea, benthic cephalopods contained significant higher Hg concentrations compared to pelagic ones. This suggests that diet is not the main pathway of Hg uptake in cephalopods as pelagic species were expected to be more exposed to O-Hg through fish consumption than benthic ones. (c) 2006 Elsevier B.V. All rights reserved.
PY 2006
PD SEP
SO The Science of The Total Environment
SN 0048-9697
PU Elsevier
VL 368
IS 2-3
UT 000240270700014
BP 585
EP 596
DI 10.1016/j.scitotenv.2006.01.038
ID 1873
ER

EF