Staff Publications

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 66476
Title Impact of the fungicide carbendazim in freshwater microcosms. II. Zooplankton, primary producers and final conclusions
Author(s) Brink, P.J. van den; Hattink, J.; Bransen, F.; Donk, E. van; Brock, T.C.M.
Source Aquatic Toxicology 48 (2000). - ISSN 0166-445X - p. 2 - 3.
Department(s) Aquatic Ecology and Water Quality Management
ALTERRA Wageningen UR
Publication type Refereed Article in a scientific journal
Publication year 2000
Keyword(s) waterverontreiniging - pesticiden - zoöplankton - aquatische ecosystemen - ecotoxicologie - water pollution - pesticides - zooplankton - aquatic ecosystems - ecotoxicology
Categories Environmental Toxicology, Ecotoxicology
Abstract Effects of chronic application of the fungicide Derosal(R) (active ingredient carbendazim) were studied in indoor macrophyte-dominated freshwater microcosms. The concentrations (0, 3.3, 33, 100, 330 and 1000 microg/l) were kept at a constant level for 4 weeks. This paper is the second of a series of two; it describes the effects on zooplankton and primary producers and presents an overall discussion. The zooplankton community was negatively affected by the three highest treatment levels (NOEC(community)=33 microg/l). At higher treatment levels Cladocera taxa were completely eliminated, while Copepod numbers were reduced. Rotatoria taxa decreased (Keratella quadrata and Lecane sp.) or increased in abundance (Testudinella parva) at the highest treatment level only. Due to the reduced grazing pressure, the abundance of some phytoplankton taxa and the chlorophyll-a content of the phytoplankton increased at the three highest treatment levels (NOEC(community)=33 microg/l). This effect was not observed for the periphyton, most probably because the reduced grazing pressure was compensated by the increased abundance of some snail species such as Lymnaea stagnalis and Physella acuta. At the end of the experimental period the biomass of the macrophyte Elodea nuttallii was significantly elevated at the two highest treatment levels. It is hypothesised that carbendazim might have caused, directly or indirectly, the removal of pathogene organisms from the macrophyte.
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