Temporal distribution of accumulated metal mixtures in two feral fish species and the relation with condition metrics and community structure

M. De Jonge, Claude Belpaire, Gerlinde Van Thuyne, Jan Breine, L. Bervoets

    Research output: Contribution to journalA1: Web of Science-article

    Abstract

    The present study investigated temporal influences on metal distribution in gudgeon (Gobio gobio) and roach (Rutilus rutilus), and its relation to condition metrics and fish community structure. Fish communities were sampled in two seasons (autumn and spring) during two successive years and the Index of
    Biotic Integrity (IBI) was calculated. Cadmium, Cu, Pb, Zn and As concentrations were measured in gill, liver, kidney and muscle, and condition factor (CF) and hepatosomatic index (HSI) were measured. Cadmium (max. 39.0 mg g1 dw) and Zn (max 2502 mg g1 dw) were most strongly stored in kidney and
    liver and periodical influences on metal accumulation were observed. CF appeared to be a stable metric related to accumulated metal-mixtures and was best related to hepatic levels, while the HSI was less useful. Relations between single metal accumulation and IBI were influenced by sample period, however,
    when taking into account multiple metals periodical influences disappeared.
    Original languageDutch
    JournalEnvironmental Pollution
    Volume197
    Pages (from-to)43-54
    Number of pages12
    ISSN0269-7491
    DOIs
    Publication statusPublished - 2015

    Thematic list

    • Pollution
    • Water Framework Directive
    • Fish

    EWI Biomedical sciences

    • B280-animal-ecology
    • B740-toxicology

    Taxonomic list

    • fishes (Pisces)

    Policy

    • Water Framework Directive
    • fisheries policy

    Geographic list

    • Flanders

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