Algal blooms decrease care but increase egg survival in a fish with paternal care

M Järvenpää, Kai Lindström

    Tutkimustuotos: LehtiartikkeliArtikkeliTieteellinenvertaisarvioitu

    7 Sitaatiot (Scopus)

    Abstrakti

    Human-induced eutrophication, resulting in algal blooms and increased water turbidity, is an alarming problem in aquatic systems. Here, we experimentally tested the impact of algal turbidity on parental care, egg fanning, and time in the nest, in the sand goby, Pomatoschistus minutus, a fish with uniparental male care. We allowed males to care for their eggs in either clear water or water made turbid by planktonic algae. In the early brood cycle, males fanned their eggs less in turbid than in clear water, but this difference disappeared later. Despite decreased care, egg survival was higher in turbid conditions, indicating that early fanning may partly be redundant for egg survival and perhaps used more as courtship. Males also spent more time out of their nest in turbid water, perhaps as a means to encounter additional females under conditions of low visibility.
    AlkuperäiskieliEi tiedossa
    Sivut2023–2028
    Sivumäärä6
    JulkaisuBehavioral Ecology and Sociobiology
    Vuosikerta65
    Numero11
    DOI - pysyväislinkit
    TilaJulkaistu - 2011
    OKM-julkaisutyyppiA1 Julkaistu artikkeli, soviteltu

    Keywords

    • Eutrophication
    • Fanning
    • Mating effort
    • Pomatoschistus minutus
    • Reproductive success
    • Sexual selection
    • Turbidity

    Viittausmuodot