Organochlorine and metal accumulation in fish (Phoxinus phoxinus) along a north-south transect in the Alps

Southern populations of the European minnow fromremote oligotrophic mountain lakes along an Alpinenorth-south transect accumulated more p,p' DDE andPCBs than northern populations. As these semi-volatileorganochlorines predominantly evaporate in warmcountries, higher rates of condensation (depos...

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Published in:Water, air, and soil pollution air, and soil pollution, 2001, Vol.125 (1-4), p.189-200
Main Authors: HOFER, Rudolf, LACKNER, Reinhard, KARGL, Joachim, THALER, Bertha, TAIT, Danilo, BONETTI, Leopoldo, VISTOCCO, Raffaele, FLAIM, Giovanna
Format: Article
Language:English
Subjects:
Agnatha. Pisces
Animal, plant and microbial ecology
Applied ecology
Biological and medical sciences
Cadmium
DDE
Detoxification
Ecotoxicology, biological effects of pollution
Effects of pollution and side effects of pesticides on vertebrates
Environmental impact
Environmental monitoring
Europe, Alps
Europe, Alps Mts
Freshwater
Fundamental and applied biological sciences. Psychology
Glutathione
Liver
Mountain lakes
Nitrous oxide
Organic compounds
Phoxinus phoxinus
Toxicants
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Summary:Southern populations of the European minnow fromremote oligotrophic mountain lakes along an Alpinenorth-south transect accumulated more p,p' DDE andPCBs than northern populations. As these semi-volatileorganochlorines predominantly evaporate in warmcountries, higher rates of condensation (deposition)are assumed to occur in the southern slopes of theAlps. The higher accumulation of lead and cadmium insouthern population is rather attributed to geogenicand specific environmental impacts than to atmosphericdeposition. Increasing liver ratios of [glutathionedisulfide]/[glutathione], a potential indicator foroxidative stress, from north to south reflect thegenerally higher toxic load at remote sites at thesouthern edge of the Alps. However, histopathologicalchanges in the liver did not correlate withaccumulated toxicants indicating that deposition doesnot lead to severe lesions but induces specificmechanisms for detoxification.[PUBLICATION ABSTRACT]
ISSN:0049-6979
1573-2932
DOI:10.1023/A:1005272308236