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Acute toxicity of mercury to Oreochromis niloticus fingerlings

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Date
1991
Author
Cuvin-Aralar, Ma. Lourdes A.
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Abstract
Fingerlings of Oreochromis niloticus were exposed to the following mercury (as HgCl2) concentrations: 0.005, 0.01, 0.02, 0.03, 0.04, 0.05 and 0.06 mg l-1 Hg of water. Hyperactivity and erratic swimming were the first indications of mercury intoxication. Scoliosis, a curvature in the mid-trunk region, was observed in some fish in the 0.03 - 0.06 mg l-1 Hg tanks. The occurrence of scoliosis is significantly correlated with mercury concentration. The 24 hour LC50 (0.0375 mg l-1 Hg) did not differ significantly with the 96 hour LC50 (0.0350 mg l-1 Hg).
URI
http://hdl.handle.net/10862/478
Suggested Citation
Cuvin-Aralar, M. L. A. (1991). Acute toxicity of mercury to Oreochromis niloticus fingerlings. BIOTROP Special Publication, (43), 133-137.
Subject
Bioaccumulation; Fingerlings; Freshwater fish; Heavy metals; Mercury; Sublethal effects; Toxicity tests; Oreochromis niloticus
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  • AQD Conference Proceedings [285]

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