Document Detail


Toxic element concentration in the Atlantic gannet Morus bassanus (Pelecaniformes, Sulidae) in Portugal.
MedLine Citation:
PMID:  18250949     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The present study provides the first data on inorganic element levels in juvenile, subadult, and adult Atlantic gannets (Morus bassanus). Physiological and potentially toxic elements (As, Cd, Co, Cr, Cu, Hg, Mn, Pb, Se, and Zn) were assessed by ICP-MS in kidney, liver, muscle, and feathers of 31 gannets, including 18 juveniles, 7 subadults, and 6 adults. The effect of age and tissue on element accumulation was also assessed. Mercury was roughly above the minimum level for adverse effects in birds. A higher accumulation of Se and Cd was detected in kidney, Pb in feathers, and Mn in liver. Age was found to affect the accumulation of Cd, Co, Hg, Mn, Se, and Zn. Adults presented significantly lower levels of Mn, Se, and Zn than subadults. Linear positive relationships within tissues were detected involving Se-Cd and Se-Hg. Also, positive linear relationships were detected among kidney, liver, and muscle, with emphasis on relationships involving Cd, Hg, Se, and Zn, which may be indicative of analogous regulation mechanisms in those organs. Atlantic gannets occurring in the study area leave their reproduction sites as juveniles. During their development process, several molting cycles occur and thus the possible contamination risk by Hg should reflect levels in the development areas rather than contamination levels in reproduction areas. The present study provides basic information on multielement accumulation in Morus bassanus, which may help us to understand the behavior and toxicity of various elements in marine birds.
Authors:
P Mendes; C Eira; J Torres; A M V M Soares; P Melo; J Vingada
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2008-02-05
Journal Detail:
Title:  Archives of environmental contamination and toxicology     Volume:  55     ISSN:  1432-0703     ISO Abbreviation:  Arch. Environ. Contam. Toxicol.     Publication Date:  2008 Oct 
Date Detail:
Created Date:  2008-09-15     Completed Date:  2008-11-14     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0357245     Medline TA:  Arch Environ Contam Toxicol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  503-9     Citation Subset:  IM    
Affiliation:
CESAM and Department of Biology, University of Aveiro, 3810-193, Aveiro, Portugal.
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MeSH Terms
Descriptor/Qualifier:
Aging / metabolism*
Animals
Atlantic Ocean
Birds / growth & development,  metabolism*
Environmental Monitoring*
Environmental Pollutants* / analysis,  pharmacokinetics,  toxicity
Metals, Heavy* / analysis,  pharmacokinetics,  toxicity
Portugal
Tissue Distribution
Chemical
Reg. No./Substance:
0/Environmental Pollutants; 0/Metals, Heavy

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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