Dietary uptake in pike (Esox lucius) of some polychlorinated biphenyls, polychlorinated naphthalenes and polybrominated diphenyl esters administered in natural diet

The dietary uptake of halogenated diaromatic compounds by the northern pike (Esox lucius) is described. Rainbow trout (Oncorhynchus mykiss), fed to the pike, were injected with a cocktail of 5 polychlorinated biphenyls (PCB), 4 polychlorinated naphthalenes (PCN) and 3 polybrominated diphenyl esters...

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Bibliographic Details
Published in:Environmental toxicology and chemistry 1997-01, Vol.16 (12), p.2508-2513
Main Authors: Burreau, S, Axelman, J, Broman, D, Jakobsson, E
Format: Article
Language:English
Online Access:Get full text
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Summary:The dietary uptake of halogenated diaromatic compounds by the northern pike (Esox lucius) is described. Rainbow trout (Oncorhynchus mykiss), fed to the pike, were injected with a cocktail of 5 polychlorinated biphenyls (PCB), 4 polychlorinated naphthalenes (PCN) and 3 polybrominated diphenyl esters (PBDE). The concentration was 90 ng per ml of lipid for each substance. Analysis, by GS-MS (1 ml samples) gave recoveries of 70 per cent. Uptake efficiencies (E) were between 35 and 90 per cent. For PCB E was positively correlated with the level of halogenation, while for PCN and PBDE E was negatively correlated. E values for compounds with effective cross sections (ECS) greater than 9.5 angstrom were higher than expected if membrane permeation at dietary uptake was restricted. No hydrophicity dependency was observed. Mediated uptake of hydrophobic organic compounds (HOC) in the gastrointestinal tract varied in efficiency with molecular weight (MW) and was greatest at MW of 450. There are 35 references.
ISSN:0730-7268