Document Detail


Feeding habits and habitats preferences affecting mercury bioaccumulation in 37 subtropical fish species from Wujiang River, China.
MedLine Citation:
PMID:  18946733     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The present study is the first to report the total mercury concentration of 37 fish species collected from Wujiang River, which is the largest branch on the southern bank of Yangtze River, China and proposed for hydropower development. Total mercury concentrations varied among the 37 subtropical species examined. We found higher mercury concentrations in carnivorous species demonstrating greater mercury bioaccumulation in species with more predatory feeding habits. There is no significant difference between fish grouped by habitat preference and feeding habit. However, carnivorous species preferring benthic positions had higher total mercury concentrations than others suggesting that mercury accumulation is related to the interaction of feeding habit and habitat preference. In our study, fish that are bottom living and feed on other fish or aquatic animals are more likely at high risk of mercury exposure. Additional mercury contamination and future impoundment may raise mercury concentration in fish in the Wujiang causing concern for human health and ecological impacts.
Authors:
Sixin Li; Lianfeng Zhou; Hongjun Wang; Youguang Liang; Jianbo Chang; Meihua Xiong; Yichao Zhang; Juxiang Hu
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't     Date:  2008-10-23
Journal Detail:
Title:  Ecotoxicology (London, England)     Volume:  18     ISSN:  1573-3017     ISO Abbreviation:  Ecotoxicology     Publication Date:  2009 Feb 
Date Detail:
Created Date:  2009-01-20     Completed Date:  2009-03-31     Revised Date:  2009-04-29    
Medline Journal Info:
Nlm Unique ID:  9885956     Medline TA:  Ecotoxicology     Country:  United States    
Other Details:
Languages:  eng     Pagination:  204-10     Citation Subset:  IM    
Affiliation:
Institute of Hydroecology, Ministry of Water Resources and Chinese Academy of Sciences, Wuhan, People's Republic of China [corrected]
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MeSH Terms
Descriptor/Qualifier:
Animals
China
Ecosystem*
Environmental Monitoring / statistics & numerical data*
Feeding Behavior / physiology*
Fishes / metabolism*
Mercury / analysis*,  pharmacokinetics*
Rivers*
Species Specificity
Spectrophotometry, Atomic
Chemical
Reg. No./Substance:
7439-97-6/Mercury
Comments/Corrections
Erratum In:
Ecotoxicology. 2009 Apr;18(3):384
Note: Xiong, Meihua [added]; Zhang, Yichao [added]

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


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