Stable isotopic ratios, shell lengths and organochlorine compounds in four bivalve species collected in July 2009 around Svalbard ...

• Main Authors: Vieweg, Ireen, Hop, Haakon, Brey, Thomas, Huber, Sandra, Ambrose, William G Jr, Locke, William L, Gabrielsen, Geir W
• Format: Article in Journal/Newspaper
• Language: English
• Published: PANGAEA 2012
• Subjects: International Polar Year 2007-2008 IPY; Arctic; International Polar Year; IPY; Kongsfjord*; Kongsfjorden; Liefdefjord*; Serripes groenlandicus; Svalbard
• Online Access: https://dx.doi.org/10.1594/pangaea.841361; https://doi.pangaea.de/10.1594/PANGAEA.841361

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 ... : Data extracted in the frame of a joint ICSTI/PANGAEA IPY effort, see http://doi.pangaea.de/10.1594/PANGAEA.150150 ...