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Effects of settling organic matter on the bioaccumulation of cadmium and BDE-99 by Baltic Sea benthic invertebrates.
Stockholm University, Faculty of Science, Department of Systems Ecology.
Stockholm University, Faculty of Science, Department of Systems Ecology.
Stockholm University, Faculty of Science, Department of Systems Ecology.
2008 (English)In: Marine Environmental Research, 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 bioaccumulation of both metals and organic contaminants.

Place, publisher, year, edition, pages
2008. Vol. 65, no 3, 264-281 p.
National Category
Ecology
Identifiers
URN: urn:nbn:se:su:diva-15625DOI: doi:10.1016/j.marenvres.2007.11.004OAI: oai:DiVA.org:su-15625DiVA: diva2:182145
Note
School of Life Sciences, Södertörn University College, SE-141 89 Huddinge, Sweden Department of Systems Ecology, Stockholm University, SE-106 91 Stockholm, SwedenAvailable from: 2008-12-07 Created: 2008-12-07 Last updated: 2011-01-10Bibliographically approved

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