Persistent pollutants in a salmon population (Salmo salar) of the southern Baltic Sea

A population of Salmo salar spawning in a river of southern Sweden and characterized by a high growth rate with some males reaching 20-30 kg after 3-4 years in the sea, was analysed for pollutants. The strongest correlation was found between concentrations of persistent pollutants and fat content. N...

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Bibliographic Details
Published in:Canadian journal of fisheries and aquatic sciences 1996-01, Vol.53 (1), p.62-69
Main Authors: Larsson, Per, Backe, Cecilia, Bremle, Gudrun, Eklöv, Anders, Okla, Lennart
Format: Article
Language:English
Subjects:
Agnatha. Pisces
Animal, plant and microbial ecology
Applied ecology
Biological and medical sciences
Ecotoxicology, biological effects of pollution
Effects of pollution and side effects of pesticides on vertebrates
Fundamental and applied biological sciences. Psychology
Marine
Pisces
Salmo salar
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Summary:A population of Salmo salar spawning in a river of southern Sweden and characterized by a high growth rate with some males reaching 20-30 kg after 3-4 years in the sea, was analysed for pollutants. The strongest correlation was found between concentrations of persistent pollutants and fat content. No relationships were found between fat content and age (weight, length), gender, years spent at sea or different measures of condition. The possible reasons for this are discussed. When concentrations of persistent pollutants were normalized for differing fat content, other factors had importance for potential uptake. Concentrations of some pollutants were correlated with length and there were also significant relationships for age or weight with older fish having higher concentrations of pollutants than younger ones. There are 34 references.
ISSN:0706-652X
1205-7533
DOI:10.1139/f95-157