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Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 353931
Title Endocrine disruption in brook trout (Salvelinus fontinalis) exposed to leachate from a public refuse dump
Author(s) Noaksson, E.; Linderoth, M.; Bosveld, A.T.C.; Norrgren, L.; Zebühr, Y.; Balk, L.
Source Science of the Total Environment (2003)1-3. - ISSN 0048-9697 - p. 87 - 103.
Department(s) Centre for Ecosystem Studies
ALTERRA Wageningen UR
Publication type Refereed Article in a scientific journal
Publication year 2003
Keyword(s) toxicologie - vis - stortplaatspercolaten - waterverontreiniging - zweden - hormonen - ecotoxicologie - landfill leachates - water pollution - toxicology - hormones - fish - sweden - ecotoxicology - perch perca-fluviatilis - pulp-mill effluent - medaka oryzias-latipes - roach rutilus-rutilus - bleached kraft mill - landfill leachate - white sucker - rainbow-trout - toxicity test - coastal fish
Categories Aquatic Ecology / Environmental Toxicology, Ecotoxicology
Abstract Lake Molnbyggen was previously found to harbour a large number of sexually immature female perch (Perca fluviatilis) suffering from endocrine disruption. In an attempt to pin-point the source of the endocrine-disrupting substance(s) (EDSs), brook trout (Salvelinus fontinalis) from Vadbacken, a stream contaminated by leachate from a public refuse dump and which empties into Lake Molnbyggen, were investigated. In addition, female perch from Lakes Yxen and Kvarntjarn, located up-stream and down-stream of Lake Molnbyggen, were investigated. Only 16.7% of the adult female brook trout in Vadbacken were sexually mature, associated with decreased gonadosomatic index, lower brain aromatase activity, and lower circulating levels of testosterone and 17beta-oestradiol, in comparison to female brook trout from the reference stream Bjorntjarnsbacken. Male brook trout showed decreased gonadosomatic index, in addition to bile duct hyperplasia in the liver, which was also found in female brook trout livers from Vadbacken. In Lake Molnbyggen, 57.6% of the female perch were found to be sexually immature with high frequencies of skin lesions, such as sores and fin erosion, significantly decreased gonadosomatic index, lower aromatase activity, and lower levels of testosterone and 17beta-oestradiol. No signs of reproductive disorders or endocrine disruption were seen in female perch from Lakes Yxen and Kvarntjarn compared to female perch from the reference lake, Lake Djursjon. Since brook trout of both sexes from Vadbacken displayed the same kind of serious adverse impairment of gonad development and endocrine disruption as perch from Lake Molnbyggen, very strong evidence are provided that the refuse dump is the source for the responsible EDS(s), since both Vadbacken and Lake Molnbyggen are known to be contaminated by leachate from that dump. The low levels of PAHs and PCBs in the surface sediments of Lake Molnbyggen suggest that these pollutants are not the responsible EDS(s).
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