Zinc and copper bioaccumulation in fish from Laizhou Bay, the Bohai Sea

文献类型: 外文期刊

第一作者: Liu Jinhu

作者: Liu Jinhu;Cao Liang;Dou Shuozeng;Liu Jinhu;Huang Wei;Zhang Chuantao

作者机构:

关键词: zinc(Zn) and copper (Cu);metal bioaccumulation;tissues;bioconcentration factor;fish growth;Laizhou Bay

期刊名称:CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY ( 影响因子:1.068; 五年影响因子:0.983 )

ISSN: 0254-4059

年卷期: 2014 年 32 卷 3 期

页码:

收录情况: SCI

摘要: Zinc (Zn) and copper (Cu) concentrations were determined in the tissues (muscle, stomach, liver, gills, skin, and gonads) of five commercial fish species (mullet Liza haematocheilus, flathead Platycephalus indicus, mackerel Scomberomorus niphonius, silver pomfret Pampus argenteus, and sea bass Lateolabrax japonicus) from Laizhou Bay in the Bohai Sea. Metal bioaccumulation was highest in the metabolically active tissues of the gonads and liver. Bioconcentration factors for Zn were higher in all tissues (gonads 44.35, stomach 7.73, gills 7.72, liver 5.61, skin 4.88, and muscle 1.63) than the corresponding values for Cu (gonads 3.50, stomach 3.00, gills 1.60, liver 5.43, skin 1.50, and muscle 0.93). Mackerel tissues accumulated metal to higher concentrations than did other fish species, but bioaccumulation levels were not significantly correlated with the trophic levels of the fish. Zn and Cu concentrations in the tissues were generally negatively correlated with fish length, except for a few tissues of sea bass. Risk assessment based on national and international permissible limits and provisional tolerances for weekly intake of Zn and Cu revealed that the concentrations of these two metals in muscle were relatively low and would not pose hazards to human health.

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