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Vieweg, Ireen; Hop, Haakon; Brey, Thomas; Huber, Sandra; Ambrose jr, William G; Locke, William L; Gabrielsen, Geir W (2012): Stable isotopic ratios, shell lengths and organochlorine compounds in four bivalve species collected in July 2009 around Svalbard. PANGAEA,, Supplement to: Vieweg, I et al. (2012): Persistent organic pollutants in four bivalve species from Svalbard waters. Environmental Pollution, 161, 134-142,

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Organochlorine compounds (OC) were determined in Arctic bivalves (Mya truncata, Serripes groenlan-dicus, Hiatella arctica and Chlamys islandica) from Svalbard with regard to differences in geographic location, species and variations related to their size and age. Higher chlorinated polychlorinated biphenyls (PCB 101-PCB 194), chlordanes and alpha-hexachlorocyclohexane (alpha-HCH) were consistently detected in the bivalves and PCBs dominated the OC load in the organisms. OC concentrations were highest in Mya truncata and the lowest in Serripes groenlandicus. Species-specific OC levels were likely related to differences in the species' food source, as indicated by the d13C results, rather than size and age. Higher OC concentrations were observed in bivalves from Kongsfjorden compared to the northern sampling locations Liefdefjorden and Sjuoyane. The spatial differences might be related to different water masses influencing Kongsfjorden (Atlantic) and the northern locations (Arctic), with differing phytoplankton bloom situations.
Median Latitude: 79.462400 * Median Longitude: 17.637567 * South-bound Latitude: 78.900000 * West-bound Longitude: 11.669000 * North-bound Latitude: 80.633000 * East-bound Longitude: 20.798000
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