FN Archimer Export Format
PT J
TI Mercury concentrations and stable isotope ratios (δ13C and δ15N) in pelagic nekton assemblages of the south-western Indian Ocean
BT 
AF Annasawmy, Pavanee
   Point, David
   Romanov, Evgeny V.
   Bodin, Nathalie
AS 1:1;2:1;3:2;4:3,4;
FF 1:;2:;3:;4:;
C1 Géosciences Environnement Toulouse (GET), UMR 5563 CNRS, IRD, UPS, CNES, Observatoire Midi Pyrénées (OMP), 31400 Toulouse, France
   Centre technique de recherche et de valorisation des milieux aquatiques (CITEB), 97420 Le Port, Île de la Réunion, France
   Institut de Recherche pour le Développement (IRD), Fishing Port, Victoria, Mahé, Seychelles
   Sustainable Ocean Seychelles, Beau Belle, Mahé, Seychelles
C2 OBSERV MIDI PYRENEES, FRANCE
   CITEB, FRANCE
   IRD, SEYCHELLES
   SUSTAINABLE OCEAN SEYCHELLES, SEYCHELLES
IF 5.8
TC 2
UR https://archimer.ifremer.fr/doc/00811/92286/98600.pdf
LA English
DT Article
CR IOTA
   LA PEROUSE
   MAD-RIDGE-1
   MAD-RIDGE-2
BO Antea
DE ;Trophic ecology;Mercury;Seamount;Squid;Crustacean;Fish
AB Mercury (Hg) concentrations and stable isotope values (δ13C and δ15N) were investigated in micronekton collected from La Pérouse and MAD-Ridge seamounts, Reunion Island and the southern Mozambique Channel. Organisms occupying epipelagic habitats showed lower Hg concentrations relative to deeper dwelling benthopelagic ones. Increasing Hg concentrations with increasing body size were recorded in the Mozambique Channel and Reunion Island. Positive relationships were observed between Hg levels and δ15N values in pelagic nekton assemblages collected at MAD-Ridge seamount and the southern Mozambique Channel, suggesting biomagnification of Hg. Concentrations of Hg in organisms across the south-western Indian Ocean were within the same range of values. Total Hg concentrations depend on a range of factors linked to habitat range, body size and trophic position of the individuals. To our knowledge, this is the first study investigating the patterns of Hg concentrations in pelagic nekton assemblages from the south-western Indian Ocean. 
PY 2022
PD JAN
SO Marine Pollution Bulletin
SN 0025-326X
PU Elsevier BV
VL 174
UT 000737215500011
DI 10.1016/j.marpolbul.2021.113151
ID 92286
ER

EF