Bioaccumulation of Heavy Metals in Some Tissues of Fish in Lake Geriyo, Adamawa State, Nigeria

• Published in: Journal of environmental and public health Vol. 2018; no. 2018; pp. 1 - 7
• Main Authors: Bawuro, A. A., Adimado, A. A., Voegborlo, R. B.
• Format: Journal Article
• Language: English
• Published: Cairo, Egypt Hindawi Publishing Corporation 01.01.2018; Hindawi; John Wiley & Sons, Inc
• Subjects: Age composition; Animal tissues; Animals; Anthropogenic factors; Bioaccumulation; Cadmium; Catfishes - metabolism; Clarias anguillaris; Copper; Environmental Exposure; Environmental Monitoring; Fatty acids; Fish; Fisheries; Fishes; Fishes - metabolism; Fishing; Food contamination & poisoning; Geographical distribution; Gills; Health aspects; Heavy metals; Heterotis niloticus; Interspecific; Irrigation; Lakes; Lead; Legislation; Liver; Metal concentrations; Metals; Metals, Heavy - metabolism; Nigeria; Organs; Pollution; Public health; Rainy season; Scomberomorus cavalla; Seasons; Species; Tilapia; Tilapia - metabolism; Tissue Distribution; Toxicology; Trace elements; Water Pollutants, Chemical - metabolism; Zinc; Nigeria; Egypt
• ISSN: 1687-9805; 1687-9813; 1687-9813
• DOI: 10.1155/2018/1854892

Bioaccumulation of heavy metals (Zn, Pb, Cd, and Cu) was determined in the liver, gills, and flesh from benthic and pelagic fish species collected from Lake Geriyo covering two seasons. The levels of the heavy metals varied significantly among fish species and organs. Flesh possessed the lowest concentration of all the metals. Liver was the target organ for Zn, Cu, and Pb accumulations. Cd however exhibited higher concentration in the gills. Fish species showed interspecific variation of metals. These differences were discussed for the contribution of potential factors that affected metals uptake like age, geographical distribution, and species-specific factors. The concentration of metals in fish flesh was accepted by the international legislation limits for Cu, Zn, and Cd; however, Pb transcend in Clarias and Tilapia during wet season and Heterotis in both seasons, hence unsafe for human consumption and a threat to public health. These levels might be due to anthropogenic inputs as there is no industrial activity around the lake.