Concentrations of persistent lipophilic compounds in fish are determined by exchange across the gills, not through the food chain

Uptake of persistent lipophilic toxicants in fish occurs via the food and by transfer across the body surface, notably the gills. Flux rates of most lipid soluble toxicants across the gills is rapid and the animal must eat at very high rates for feeding to have a significant effect on toxicant conce...

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Bibliographic Details
Published in:Chemosphere (Oxford) 1998-09, Vol.37 (7), p.1263-1270
Main Authors: Randall, D.J., Connell, D.W., Yang, R., Wu, S.S.
Format: Article
Language:English
Subjects:
Agnatha. Pisces
Analytical chemistry
Animal, plant and microbial ecology
Animals
Applied ecology
Biological and medical sciences
Body Burden
Chemistry
Ecotoxicology, biological effects of pollution
Effects of pollution and side effects of pesticides on vertebrates
Environmental Exposure
Exact sciences and technology
Food Contamination
Fresh Water - analysis
Freshwater
Fundamental and applied biological sciences. Psychology
General, instrumentation
Gills - metabolism
Hazardous Substances - pharmacokinetics
Lipids - pharmacokinetics
Marine
Oncorhynchus mykiss - metabolism
Water Pollutants, Chemical - pharmacokinetics
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Summary:Uptake of persistent lipophilic toxicants in fish occurs via the food and by transfer across the body surface, notably the gills. Flux rates of most lipid soluble toxicants across the gills is rapid and the animal must eat at very high rates for feeding to have a significant effect on toxicant concentration in the body. The relative rates of uptake via feeding and transfer across the gills are analyzed from a theoretical and experimental standpoint. At the low feeding rates typical of fish, the uptake of toxicants in the food can be ignored when estimating toxicant body concentration.
ISSN:0045-6535
1879-1298
DOI:10.1016/S0045-6535(98)00124-6