| Bioaccumulation of mercury in the pelagic food chain of the Lake Baikal. | |
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MedLine Citation:
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PMID: 20117820 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Mercury (Hg) concentrations were analyzed in the livers of Baikal seals and in plankton, zoobenthos and fish which constitute food items for the seals. Concentrations of Hg in the liver of Baikal seals were up to two orders of magnitude lower than those in seals inhabiting other lakes. The low levels of Hg are due to the low levels of the Hg in the fish from the family Comephoride, which reflect the very low concentrations of Hg in Baikal water. The development stage (pups and adults) and the sex of the seals have significant influence on their hepatic Hg concentrations. The differences between Hg accumulation in adult males, adult females and pups could be attributed to the reproductive cycle of the Baikal seals. In spite of low concentrations, Hg is characterized by high values of the concentration factor (CF) for the livers of for Baikal seals. Biomagnification factors (BMFs) suggest biomagnifications of Hg in the fish-seal trophic link. |
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Authors:
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T Ciesielski; M V Pastukhov; P Szefer; B M Jenssen |
Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2010-02-01 |
Journal Detail:
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Title: Chemosphere Volume: 78 ISSN: 1879-1298 ISO Abbreviation: Chemosphere Publication Date: 2010 Mar |
Date Detail:
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Created Date: 2010-02-22 Completed Date: 2010-06-22 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0320657 Medline TA: Chemosphere Country: England |
Other Details:
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Languages: eng Pagination: 1378-84 Citation Subset: IM |
Copyright Information:
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Copyright (c) 2010 Elsevier Ltd. All rights reserved. |
Affiliation:
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Department of Biology, Norwegian University of Science and Technology, Trondheim, Norway. tomasz.ciesielski@bio.ntnu.no |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Animals Fishes / metabolism* Fresh Water Hungary Liver / metabolism* Mercury / analysis*, metabolism* Phoca / metabolism* Plankton / metabolism* Water Pollutants, Chemical / metabolism |
| Chemical | |
Reg. No./Substance:
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0/Water Pollutants, Chemical; 7439-97-6/Mercury |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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