Physiological Changes in Nickel-exposed Nile Tilapia Oreochromis niloticus during Exposure and Recovery Periods
K. U., Sheethal, Prakash Nadoor, S. R. Somashekara, U. A. Suryawanshi, K. R. Amogha, P. A. Telvekar, S. T. Shelke, J. G. K. Pathan
Journal of Scientific Research and Reports · pp. 333–340 · Published 7 May 2024
10.9734/jsrr/2024/v30i62048Abstract
Heavy metals are a significant problem in aquatic ecosystems as they are toxic and tend to accumulate, immediately affecting fish physiology. The present investigation was carried out to evaluate the sub-lethality of Nickel chloride on fingerlings of Nile tilapia, Oreochromis niloticus on long-term exposure to it is below safe concentrations1/fifth (9.39 ppm) and 1/10th (4.69 ppm). The physiological studies revealed a significant reduction in Oxygen Consumption Rate (OCR), Ammonia-N Excretion Rate (AER), Oxygen Rate (O: R) and Food Consumption Rate (FCR) and behavioural changes during accumulation and depuration phases. Limited recovery was obtained in all the physiological parameters after depuration for 28 days from the end of the accumulation period.
Cited by 2
Shaimaa A. A. Ahmed, Ghada I. Abd El-Rahman, Haiam A. Mohammed · Fish Physiology and Biochemistry · 2025
Jameer Ahamed.S, Balasubramanian. S, Citarasu.T · UTTAR PRADESH JOURNAL OF ZOOLOGY · 2025
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