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

• Published in: Chinese journal of oceanology and limnology Vol. 32; no. 3; pp. 491 - 502
• Main Author: 刘金虎 曹亮 黄伟 张传涛 窦硕增
• Format: Journal Article
• Language: English
• Published: Heidelberg Springer-Verlag 01.05.2014; Science Press; Springer Nature B.V
• Subjects: bass; Bays; Bioaccumulation; Biological magnification; Biological oceanography; Biology; Commercial species; Copper; correlation; Dicentrarchus labrax; Earth and Environmental Science; Earth Sciences; Fish; Gills; Gonads; Health hazards; Heavy metals; human health; Lateolabrax japonicus; Liver; Mackerel; Marine; Marine fishes; Metal concentrations; mullet; Muscles; Oceanography; Pampus argenteus; Physical growth; Platycephalus; Platycephalus indicus; Risk assessment; Scomber; Scomberomorus; Scomberomorus niphonius; Sea bass; Silver; Skin; Stomach; Tissue; Tissues; Tolerances; Tolerances (dimensional); Trophic levels; trophic relationships; Whitefish; Zinc; 渤海; 生物富集系数; 经济鱼类; 莱州湾; 金属富集; 金属浓度; 铜; 锌含量; Bohai Sea; Laizhou Bay; INW, China, People's Rep, Shandong Prov., Laizhou Bay; INW, Bohai Sea; zinc(Zn) and copper (Cu); fish growth; metal bioaccumulation; tissues; bioconcentration factor; Laizhou Bay
• ISSN: 0254-4059; 2096-5508; 1993-5005; 2523-3521
• DOI: 10.1007/s00343-014-3032-7

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.