Life history of Daphnia galeata in a hypertrophic reservoir and consequences of non=consumptive mortality for the initiation of a midsummer decline

S. Hülsmann, H. Voigt

    Onderzoeksoutput: Bijdrage aan wetenschappelijk tijdschrift/periodieke uitgaveArtikelWetenschappelijkpeer review

    Samenvatting

    Field and laboratory investigations were combined in a 2-year study on the initiation of a midsummer decline of Daphnia galeata Sars in a hypertrophic reservoir. Quantitative field samples were taken twice a week, and, adult and juvenile mortality rates were calculated. Patterns of reproduction and survival of daphnids born during spring and early summer under fluctuating food conditions were determined in life-table experiments. 2. The abundance of Daphnia increased strongly in early May and declined in June 1998 (midsummer decline). In 1999, Daphnia density increased only slowly in spring and remained constantly high throughout the summer. 3. Food conditions (concentrations of POC
    Originele taal-2Engels
    Pagina's (van-tot)2313-2324
    TijdschriftFreshwater Biology
    Volume47
    Nummer van het tijdschrift12
    DOI's
    StatusGepubliceerd - 2002

    Vingerafdruk

    Duik in de onderzoeksthema's van 'Life history of Daphnia galeata in a hypertrophic reservoir and consequences of non=consumptive mortality for the initiation of a midsummer decline'. Samen vormen ze een unieke vingerafdruk.

    Citeer dit