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Hense, B.A. ; Jüttner, I. ; Welzl, G. ; Severin, G.F. ; Pfister, G. ; Behechti, A. ; Schramm, K.-W.

Effects of 4-nonylphenol on phytoplankton and periphyton in aquatic microcosms.

Environ. Toxicol. Chem. 22, 2727-2732 (2003)
DOI
Open Access Green as soon as Postprint is submitted to ZB.
The effects of nonylphenol (NP) on phytoplankton and periphyton were studied in 230 L outdoor microcosms. Phytoplankton cell density and biomass, phytoplankton and periphyton diversity, and assemblage composition were analyzed during a four-week preapplication period, followed by six weeks of NP treatment via controlled release and a six weeks postapplication period. Changes in species richness and diversity were not correlated with NP concentrations. However, changes in phytoplankton cell densities during the first week of the postapplication period were related to previous exposure. In the controls and the lowest-dosed microcosm, Conjugatophyceae constituted most of the biomass during the dosing and the postapplication period. In contrast, Dinophyceae dominated the biomass during the dosing and the postapplication period at higher NP concentrations. Principal response curves revealed changes in phytoplankton assemblage composition during the dosing and the postapplication period. Dinophyceae and most Cyanophyceae were more abundant at intermediate and higher NP concentrations, whereas Conjugatophyceae were less abundant compared to controls. Assemblages only partly recovered during the postapplication period. Periphyton taxon richness, diversity, and assemblage change was not related to NP concentrations. At the lowest and intermediate concentration, assemblages were significantly different from the controls and the higher concentrations, which were similar during the treatment period.
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Publication type Article: Journal article
Document type Scientific Article
Keywords 4-nonylphenol ; Aquatic Microcosms ; Periphyton ; Phytoplankton
ISSN (print) / ISBN 0730-7268
e-ISSN 1552-8618
Journal Environmental Toxicology and Chemistry : ET&C Online
Quellenangaben Volume: 22, Issue: 11, Pages: 2727-2732 Article Number: , Supplement: ,
Publisher Wiley
Reviewing status Peer reviewed
Institute(s) Institute of Biomathematics and Biometry (IBB)
Institute of Ecological Chemistry (IOEC)