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Food quality effects on copepod growth and development: Implications for bioassays in ecotoxicological testing
Stockholm University, Faculty of Science, Department of Applied Environmental Science (ITM).
Stockholm University, Faculty of Science, Department of Applied Environmental Science (ITM).
Stockholm University, Faculty of Science, Department of Systems Ecology.
Stockholm University, Faculty of Science, Department of Applied Environmental Science (ITM).
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2009 (English)In: Ecotoxicology and Environmental Safety, ISSN 0147-6513, E-ISSN 1090-2414, Vol. 72, no 2, 351-357 p.Article in journal (Refereed) Published
Abstract [en]

We evaluated effects of six algal species in 25 combinations on growth and reproduction of the harpacticoid copepod Nitocra spinipes. In the first lifecycle test, Rhodomonas salina, Phaeodactylum tricornutum, and Dunaliella tertiolecta were used. The results showed that R. salina was the best food, whereas P. tricornutum (0% development success) and D. tertiolecta (41.7% malformations) were poor food items. In the second lifecycle test, a mixture of R. salina, Tetraselmis suecica, and Thalassiosira weisflogii (selected from screening tests) was tested together with a mono-diet of R. salina. Also in this test, copepods fed R. salina performed better (i.e. had higher survival and reproductive success) compared with the other treatment. We conclude that R. salina is appropriate to use as food in toxicity testing with N. spinipes, whereas some of the algae commonly used as feed in ecotoxicological tests with other copepods had detrimental effects on the development, reproduction, and survival of N. spinipes.

Place, publisher, year, edition, pages
Elsevier Inc , 2009. Vol. 72, no 2, 351-357 p.
Keyword [en]
Nitocra spinipes, Growth rate, RNA content, Survival, Reproduction, Development
National Category
Ecology
Identifiers
URN: urn:nbn:se:su:diva-15670DOI: doi:10.1016/j.ecoenv.2008.04.008OAI: oai:DiVA.org:su-15670DiVA: diva2:182190
Available from: 2008-12-08 Created: 2008-12-08 Last updated: 2017-12-13Bibliographically approved

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Dahl, UlrikaGorokhova, ElenaEklund, BrittaBreitholtz, Magnus
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Department of Applied Environmental Science (ITM)Department of Systems Ecology
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