Influence of food on the assimilation of selected metals in tropical bivalves from the New Caledonia lagoon: qualitative and quantitative aspects

Marine Pollution Bulletin
L HédouinM Warnau

Abstract

The present study aimed at examining the influence of food quality and quantity on the assimilation efficiency (AE) of metals in two abundant bivalves in the New Caledonia lagoon, the oyster Isognomon isognomon and the clam Gafrarium tumidum. Bivalves were exposed via their food to the radiotracers of three metals of concern in New Caledonia ((54)Mn, (57)Co and (65)Zn) under different feeding conditions (phytoplankton species, cell density, and cell-associated metal concentration). When bivalves were fed Heterocapsa triquetra, Emiliania huxleyi and Isochrysis galbana, AE of Mn, Co and Zn was strongly influenced by the phytoplankton species and by the metal considered. In contrast, when fed one given phytoplankton species previously exposed to different concentrations of Co, phytoplankton-associated Co load had no influence on the AE and on the retention time of the metal in both bivalves. Metals ingested with I. galbana displayed generally the highest AE in both bivalve species, except for Mn in clams for which the highest AE was observed for H. triquetra. Influence of food quantity was investigated by exposing bivalves to different cell densities of I. galbana (5 x 10(3), 10(4) or 5 x 10(4) cell ml(-1)). As for food quality, f...Continue Reading

References

Sep 27, 1974·Nature·C R Boyden
Nov 5, 1998·The Science of the Total Environment·J R ReinfelderW X Wang
Oct 21, 2003·Archives of Environmental Contamination and Toxicology·G CoteurPh Dubois
Feb 15, 1991·Science·J R Reinfelder, N S Fisher
Sep 4, 2008·Bulletin of Environmental Contamination and Toxicology·Marc Metian, Michel Warnau
Sep 5, 2008·Environmental Science & Technology·Ke Pan, Wen-Xiong Wang

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Citations

May 12, 2012·Integrative and Comparative Biology·Xavier Bonnet
Sep 9, 2015·Journal of Environmental Radioactivity·Simon PouilMarc Metian
Jul 3, 2015·Journal of Environmental Radioactivity·Simon PouilMarc Metian
Mar 11, 2017·Environmental Science and Pollution Research International·Laetitia HédouinMichel Warnau
Mar 5, 2019·The Science of the Total Environment·P FeyY Letourneur
Nov 9, 2018·The Science of the Total Environment·Yizhou Ke, Wen-Xiong Wang

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