alexa Bioaccumulation from food and water of cadmium, selenium and zinc in an estuarine fish, Ambassis jacksoniensis.


Journal of Environmental & Analytical Toxicology

Author(s): Creighton N, Twining J, Creighton N, Twining J

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Abstract The glassfish, Ambassis jacksoniensis, is a key, mid-level species in an estuarine food web on the east coast of Australia. Estuaries are subject to contamination from urban and industrial activities. The biokinetics of Cd, Se and Zn accumulation by glassfish from water and food were assessed using radioisotopes. Metal uptake from water was not regulated over the range of water metal concentrations examined. Metal uptake from food was assessed using brine shrimp (Artemia sp.) fed radio-labelled algae. The assimilation efficiency from food was 9.5 ± 2.5\%, 23 ± 2.2\% and 4.6 ± 0.6\% for Cd, Se and Zn, respectively. The potential for biomagnification was low for all metals. Food is the main metal uptake pathway for glassfish, with 97\%, 99\% and 98\% of the uptake of Cd, Se and Zn, respectively, estimated to be from food. Crown Copyright © 2010. Published by Elsevier Ltd. All rights reserved. This article was published in Mar Pollut Bull and referenced in Journal of Environmental & Analytical Toxicology

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