Petroleum hydrocarbons and their effects on fishery species in the Bohai Sea,North China
Sisi Xu , Jinming Song , Huamao Yuan , Xuegang Li , Ning Li , Liqin Duan , Yu Yu
DOI:
Received May 31, 2010,Revised August 20, 2010, Accepted , Available online
Volume 23,2011,Pages 553-559
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Systematic studies on the changes in concentrations of petroleum hydrocarbons (PHs) and their e ects on fishery species in the
Bohai Sea during 1974–2004 are presented. Changes in PHs concentrations were closely related to Yellow River runo . Concentrations
of PHs accumulated in fish and shrimp increased by about 0.712 mg/kg dry weight when trophic level of fish and shrimps increased
by 1. Attention should also be paid to the high PHs concentrations in mollusks along the coastal waters of the Bohai Sea. Average
concentration of PHs in the adjacent coastal waters of Tianjin City during 1996–2005 decreased the population growth rates of fish,
crustaceans and mollusks in the Bohai Sea by 2.58%, 6.59% and 2.33%, respectively. Therefore, PHs have significantly contributed to
the decline in fisheries in the Bohai Sea, and they must be reduced to realize the sustainable fisheries.
