| Trophodynamics of mercury and other trace elements in a pelagic food chain from the Baltic Sea. | |
| | |
MedLine Citation:
|
PMID: 19767059 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
Mercury (Hg) and 13 other trace elements (Al, Ti, V, Cr, Fe, Mn, Co, Ni, Cu, Zn, As, Cd, and Pb) were measured in phytoplankton, zooplankton, mysis and herring in order to examine the trophodynamics in a well-studied pelagic food chain in the Baltic Sea. The fractionation of nitrogen isotopes (delta(15)N) was used to evaluate food web structure and to estimate the extent of trophic biomagnification of the various trace elements. Trophic magnification factors (TMFs) for each trace element were determined from the slope of the regression between trace element concentrations and delta(15)N. Calculated TMFs showed fundamental differences in the trophodynamics of the trace elements in the pelagic food chain studied. Concentrations of Al, Fe, Ni, Zn, Pb and Cd showed statistically significant decreases (TMF<1) with increasing trophic levels and thus these trace elements tropically dilute or biodilute in this Baltic food chain. Cu, As, Cr, Mn, V, Ti and Co showed no significant relationships with trophic levels. Hg was unique among the trace elements studied in demonstrating a statistically significant increase (TMF>1) in concentration with trophic level i.e. Hg biomagnifies in this Baltic food chain. The estimated TMF for Hg in this food chain was comparable to TMFs observed elsewhere for diverse food chains and locations. |
| | |
Authors:
|
Erick Nfon; Ian T Cousins; Olli J??rvinen; Arun B Mukherjee; Matti Verta; Dag Broman |
Related Documents
:
|
15516769 - Metal elution and content of fused slags produced from incinerated ash. 15092239 - The influence of gut microorganisms on zinc uptake in helix aspersa. 16003609 - The electrochemical behaviour of various non-precious ni and co based alloys in artific... 12504169 - Cadmium, copper and nickel levels in vegetables from industrial and residential areas o... 23454309 - Food web analysis reveals effects of ph on mercury bioaccumulation at multiple trophic ... 15930589 - Human exposure to metals through the diet in tarragona, spain: temporal trend. 19346179 - Investigation of predictors affecting food mixing ability in mandibulectomy and/or glos... 7349769 - Harmful effects of carrageenan fed to animals. 17256489 - Evolution of the snow area index of the subarctic snowpack in central alaska over a who... |
Publication Detail:
|
Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2009-09-19 |
Journal Detail:
|
Title: The Science of the total environment Volume: 407 ISSN: 1879-1026 ISO Abbreviation: Sci. Total Environ. Publication Date: 2009 Dec |
Date Detail:
|
Created Date: 2009-11-02 Completed Date: 2010-01-07 Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 0330500 Medline TA: Sci Total Environ Country: Netherlands |
Other Details:
|
Languages: eng Pagination: 6267-74 Citation Subset: IM |
Affiliation:
|
Department of Applied Environmental Science (ITM), Geohuset Svante Arrhenius v??g 8C, Stockholm University, SE 106 91 Stockholm, Sweden. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Environmental Monitoring Food Chain Mercury / analysis* Oceans and Seas Seawater / chemistry* Trace Elements / analysis* Water Pollutants, Chemical / analysis* |
| Chemical | |
Reg. No./Substance:
|
0/Trace Elements; 0/Water Pollutants, Chemical; 7439-97-6/Mercury |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: A GIS-based human health risk assessment for urban green space planning-An example from Grugliasco (...
Next Document: Acidic polysaccharide of Panax ginseng as a defense against small intestinal damage by whole-body ga...