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Effects of settling organic matter on the bioaccumulation of cadmium and BDE-99 by Baltic Sea benthic invertebrates
Södertörn University, School of Life Sciences. Stockholm University.
Stockholm University.
Södertörn University, School of Life Sciences. Stockholm University.
Stockholm University.
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2008 (English)In: Marine Environmental Research, ISSN 0141-1136, E-ISSN 1879-0291, Vol. 65, no 3, 264-281 p.Article in journal (Refereed) Published
Abstract [en]

Settling organic matter (OM) is the major food source for heterotrophic benthic fauna. The high sorption affinity of many contaminants for OM implies that OM can influence both the distribution and bioavailability of contaminants. Here, we experimentally examine the role of settling OM of various nutritional qualities on the bioaccumulation of cadmium and the flame retardant BDE-99 by three benthic invertebrates; Macoma balthica, Monoporeia affinis and Marenzelleria sp. Contaminants were associated with three types of OM; a microalgae (Tetraselmis spp.), lignin and sediment. Bioaccumulation of Cd was proportional to OM nutritional quality for all three species, and was species-specific in the order Marenzelleria > M. balthica > M. affinis. BDE-99 bioaccumulation was highest in the treatment with the most nutritious OM (Tetraselmis). Consequently, both benthic species composition and the nutritive value of organic matter settling to the seafloor can have a substantial effect on the bioaccurnulation of both metals and organic contaminants.

Place, publisher, year, edition, pages
2008. Vol. 65, no 3, 264-281 p.
National Category
Natural Sciences
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URN: urn:nbn:se:sh:diva-5759DOI: 10.1016/j.marenvres.2007.11.004ISI: 000254821700005PubMedID: 18155760ScopusID: 2-s2.0-39749189008OAI: oai:DiVA.org:sh-5759DiVA: diva2:392659
Available from: 2011-01-27 Created: 2011-01-27 Last updated: 2016-10-04Bibliographically approved

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Thorsson, Maria H.Bradshaw, ClareGilek, Michael
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