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Contaminants and habitat choice in the Baltic Sea: Behavioural experiments with the native species, Monoporeia affinis, and the invasive genus, Marenzelleria
Stockholm University, Faculty of Science, Department of Applied Environmental Science (ITM).
Stockholm University.
Stockholm University.
Stockholm University, Faculty of Science, Department of Applied Environmental Science (ITM).
2009 (English)In: Estuarine, Coastal and Shelf Science, ISSN 0272-7714, E-ISSN 1096-0015, Vol. 81, 238-246 p.Article in journal (Refereed) Published
Abstract [en]

The invasive polychaete genus, Marenzelleria and the native amphipod, Monoporeia affinis are food and habitat competitors in the Baltic Sea. Previous studies have shown that moderate densities of Marenzelleria can affect the behaviour of M. affinis. To examine the short-term interactive effects of interspecific habitat choice and environmental contaminants a series of habitat colonisation experiments were performed. The contaminants examined included harbor sediments and sediment spiked with the antifouling substances, Cu, Zn and Irgarol. Polychaetes and amphipods were exposed to contaminants in single-species and two-species experiments. In spiked-sediment experiments, M. affinis showed clear dose-dependent response. These experiments verified that behavioural response of M. affinis to different habitats is a sensitive method for testing toxicity under controlled conditions. In experiments with three different harbor sediments and reference sediment both species showed the lowest preference for the reference sediment. This sediment also had the lowest content of quality food, indicating that factors such as food quality and quantity may override the disturbing effects of contaminants in natural sediments. The presence of Marenzelleria spp. did not affect amphipod habitat choice, indicating no short-term effects, which implies that both species can co-exist provided sufficient food is available.

Place, publisher, year, edition, pages
2009. Vol. 81, 238-246 p.
Keyword [en]
habitat choice, Baltic Sea, Monoporeia affinis, antifouling substances, Marenzelleria
National Category
Earth and Related Environmental Sciences
URN: urn:nbn:se:su:diva-35705DOI: 10.1016/j.ecss.2008.10.023ISI: 000262776200010OAI: diva2:287797
Available from: 2010-01-19 Created: 2010-01-19 Last updated: 2011-04-04Bibliographically approved

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Eriksson Wiklund, Ann-KristinEklund, Britta
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Department of Applied Environmental Science (ITM)Stockholm University
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