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  • Title: Low mercury levels in marine fish from estuarine and coastal environments in southern China.
    Author: Pan K, Chan H, Tam YK, Wang WX.
    Journal: Environ Pollut; 2014 Feb; 185():250-7. PubMed ID: 24292441.
    Abstract:
    This study is the first comprehensive evaluation of total Hg and methylmercury (MeHg) concentrations in wild marine fish from an estuarine and a coastal ecosystem in southern China. A total of 571 fish from 54 different species were examined. Our results showed that the Hg levels were generally low in the fish, and the Hg levels were below 30 ng g(-1) (wet weight) for 82% of the samples, which may be related to the reduced size of the fish and altered food web structure due to overfishing. Decreased coastal wetland coverage and different carbon sources may be responsible for the habitat-specific Hg concentrations. The degree of biomagnification was relatively low in the two systems.
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