{"refrec":{"BRefID":2684,"RR":"<b>Van den Brink, P.J.; Hattink, J.; Bransen, F.; Van Donk, E.; Brock, T.C.M.</b> (2000). Impact of the fungicide carbendazim in freshwater microcosms. II. Zooplankton, primary producers and final conclusions. <i>Aquat. Toxicol. 48</i>: 251-264","BEntID":2684,"PublicFlag":1,"CheckedFlag":0,"wosflag":1,"vabbflag":null,"RefStringPartII":". <i>Aquat. Toxicol. 48</i>: 251-264","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Van den Brink, P.J.; Hattink, J.; Bransen, F.; Van Donk, E.; Brock, T.C.M.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Van den Brink, P.J. <i>et al.</i>","Englishabstract":"Effects of chronic application of the fungicide Derosal® (active ingredient carbendazim) were studied in indoor macrophyte-dominated freshwater microcosms. The concentrations (0, 3.3, 33, loo, 330 and 1000 µg/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<sub>community</sub> = 33 µg/l). At higher treatment levels Cladocera taxa were completely eliminated, while Copepod numbers were reduced. Rotatoria taxa decreased (<i>Keratella quadrata</i> and <i>Lecane</i> sp.) or increased in abundance (<i>Testudinella parva</i>) at the highest treatment level only. Due to the reduced grazing pressure, the abundance of some phytoplankton taxa and the chlorophyll-<i>a</i> content of the phytoplankton increased at the three highest treatment levels (NOEC<sub>community</sub> = 33 µg/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 <i>Lymnaea stagnalis</i> and <i>Physella acuta</i>. At the end of the experimental period the biomass of the macrophyte <i>Elodea nuttallii</i> 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.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Impact of the fungicide carbendazim in freshwater microcosms. II. 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