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| Zinc and copper bioaccumulation in fi sh from Laizhou Bay,the Bohai Sea | |
| 作者姓名： | 刘金虎 曹亮 黄伟 张传涛 窦硕增 |
| 基金项目： | Supported by the National Natural Science Foundation of China for Creative Research Group （No. 41121064） and the International or Regional Research Cooperation and Exchange Project （No. 3106 l 160187） The authors sincerely thank Mr. YIN Xuebo, Institute of Oceanology, Chinese Academy of Sciences for his help in the chemical analysis of the samples. We are also grateful to Mr. ZHANG Chuantao, Xiaying Enhancement and Experiment Station, Chinese Academy of Fishery Sciences, for his help in collecting the samples. |
| 摘 要： | Abstract 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. |
| 关 键 词： | 经济鱼类 金属富集 锌含量 莱州湾 渤海 生物富集系数 铜 金属浓度 |
Zinc and copper bioaccumulation in fish from Laizhou Bay,the Bohai Sea |
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| Jinhu Liu,Liang Cao,Wei Huang,Chuantao Zhang,Shuozeng Dou.Zinc and copper bioaccumulation in fi sh from Laizhou Bay,the Bohai Sea[J].Chinese Journal of Oceanology and Limnology,2014,32(3):491-502. | |
| Authors: | Jinhu Liu Liang Cao Wei Huang Chuantao Zhang Shuozeng Dou |
| Institution: | 1. Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266071, China 2. University of Chinese Academy of Sciences, Beijing, 100049, China 3. Laboratory of Marine Ecology and Biogeochemistry, Second Institute of Oceanography, State Oceanic Administration, Hangzhou, 310012, China 4. Xiaying Enhancement and Experiment Station, Chinese Academy of Fishery Sciences, Weifang, 262312, China |
| Abstract: | 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. |
| Keywords: | zinc（Zn） and copper （Cu） metal bioaccumulation tissues bioconcentration factor fish growth Laizhou Bay |
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