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Impact of 17alpha-ethinylestradiol on the plankton in freshwater microcosms--II: responses of phytoplankton and the interrelation within the ecosystem.
Ecotoxicol Environ Saf. 2008 Mar; 69(3):453-65.EE

Abstract

Effects of 17alpha-ethinylestradiol (EE) on phytoplankton were investigated in a lentic freshwater microcosm study. Treatment with EE caused a shift in the species composition as shown by a principle response curve. Whereas densities of Cyanophyceae, Dinophyceae, and Chrysophyceae increased, those of Conjugatophyceae and Cryptophyceae decreased. Furthermore, relative density of Chlorophyceae declined after EE treatment. The changes showed taxa-specific time dependencies. Some species, especially the cyanobacterium Cyanobium parvum, bloomed after the treatment. EE treatment promoted total abundance and biomass of phytoplankton. Although the number of species per microcosm increased, the diversity indices (Shannon-Wiener, Simpson) tended to lower values. The ecosystem only partly recovered during the investigated post-treatment period of 6 weeks. Probably at least the main effects were caused indirectly, i.e. via decrease of grazing zooplankton (crustaceans). The relation of EE to variation of phytoplankton composition was closer than those of other abiotic factors, indicating the relevance of its impact. EE also probably affected nutrients of the phytoplankton.

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Authors+Show Affiliations

Hense BA
GSF-National Research Center for Environment and Health, Institute of Biomathematics and Biometry, Neuherberg, Germany. burkhard.hense@gsf.de
Jaser W
No affiliation info available
Welzl G
No affiliation info available
Pfister G
No affiliation info available
Wöhler-Moorhoff GF
No affiliation info available
Schramm KW
No affiliation info available

MeSH

BiodiversityEthinyl EstradiolFresh WaterKineticsPhytoplanktonPopulation DensitySpecies Specificity

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

17391760

Citation

Hense, Burkhard A., et al. "Impact of 17alpha-ethinylestradiol On the Plankton in Freshwater microcosms--II: Responses of Phytoplankton and the Interrelation Within the Ecosystem." Ecotoxicology and Environmental Safety, vol. 69, no. 3, 2008, pp. 453-65.
Hense BA, Jaser W, Welzl G, et al. Impact of 17alpha-ethinylestradiol on the plankton in freshwater microcosms--II: responses of phytoplankton and the interrelation within the ecosystem. Ecotoxicol Environ Saf. 2008;69(3):453-65.
Hense, B. A., Jaser, W., Welzl, G., Pfister, G., Wöhler-Moorhoff, G. F., & Schramm, K. W. (2008). Impact of 17alpha-ethinylestradiol on the plankton in freshwater microcosms--II: responses of phytoplankton and the interrelation within the ecosystem. Ecotoxicology and Environmental Safety, 69(3), 453-65.
Hense BA, et al. Impact of 17alpha-ethinylestradiol On the Plankton in Freshwater microcosms--II: Responses of Phytoplankton and the Interrelation Within the Ecosystem. Ecotoxicol Environ Saf. 2008;69(3):453-65. PubMed PMID: 17391760.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Impact of 17alpha-ethinylestradiol on the plankton in freshwater microcosms--II: responses of phytoplankton and the interrelation within the ecosystem. AU - Hense,Burkhard A, AU - Jaser,Wolfgang, AU - Welzl,Gerhard, AU - Pfister,Gerd, AU - Wöhler-Moorhoff,Gabriele F, AU - Schramm,Karl-Werner, Y1 - 2007/03/27/ PY - 2006/02/07/received PY - 2007/01/23/revised PY - 2007/01/26/accepted PY - 2007/3/30/pubmed PY - 2008/8/12/medline PY - 2007/3/30/entrez SP - 453 EP - 65 JF - Ecotoxicology and environmental safety JO - Ecotoxicol Environ Saf VL - 69 IS - 3 N2 - Effects of 17alpha-ethinylestradiol (EE) on phytoplankton were investigated in a lentic freshwater microcosm study. Treatment with EE caused a shift in the species composition as shown by a principle response curve. Whereas densities of Cyanophyceae, Dinophyceae, and Chrysophyceae increased, those of Conjugatophyceae and Cryptophyceae decreased. Furthermore, relative density of Chlorophyceae declined after EE treatment. The changes showed taxa-specific time dependencies. Some species, especially the cyanobacterium Cyanobium parvum, bloomed after the treatment. EE treatment promoted total abundance and biomass of phytoplankton. Although the number of species per microcosm increased, the diversity indices (Shannon-Wiener, Simpson) tended to lower values. The ecosystem only partly recovered during the investigated post-treatment period of 6 weeks. Probably at least the main effects were caused indirectly, i.e. via decrease of grazing zooplankton (crustaceans). The relation of EE to variation of phytoplankton composition was closer than those of other abiotic factors, indicating the relevance of its impact. EE also probably affected nutrients of the phytoplankton. SN - 0147-6513 UR - https://www.unboundmedicine.com/medline/citation/17391760/Impact_of_17alpha_ethinylestradiol_on_the_plankton_in_freshwater_microcosms__II:_responses_of_phytoplankton_and_the_interrelation_within_the_ecosystem_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0147-6513(07)00032-2 DB - PRIME DP - Unbound Medicine ER -