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Haematology of Clarias gariepinus exposed to Microcystin-LR

Isibor, Patrick Omoregie (2017) Haematology of Clarias gariepinus exposed to Microcystin-LR. Beni-Suef University Journal of Basic and Applied Sciences, 6. pp. 192-198.

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A static bioassay experiment was conducted by exposing Clarias gariepinus to 200 mg/L and 400m/L of MCLR solutions for 14 days and 28 days to assess the haematological impacts such as estimation of red blood cells, white blood cell and Thrombocytes, haemoglobin percentage, haematocrit, and percentage changes. A dramatic reduction was observed in the RBCs in both experimental cases after 28 days; which can be attributed to haemolysis. Result showed significant impact of MC-LR on RBCs counts on duration (28 days) basis; regardless of the concentrations. The PCV after 28 days was significantly lower than that observed after 14 days, which was also significantly lower than that observed in the control set-up. The concentrations; particularly 400 mg/L MC-LR exerted significant stress on the fish. A general temporalincrease was recorded in the total count of WBCs in both experimental cases. Results showed that MCLR; particularly 400 mg/L caused significant haematological disruptions in the C. gariepinus, especially after 28 days of exposure i.e. 400 mg/L (28 days) > 400 mg/L (14 days) > 200 mg/L (28 days) > 200 mg/L (14 days). Due to the fact that natural aquatic ecosystems affected with algal bloom contain concentrations of MC-LR higher than the experimented levels, aquatic biota in affected water bodies are liable to suffer worse consequences than those observed in this experiment. This necessitates proactive measures on susceptible water bodies in order to forestall liable debilitating effects on the aquatic biota.

Item Type: Article
Uncontrolled Keywords: Clarias gariepinus Microcystin-LR Haemoglobin percentage Haematocrit Red blood cells White blood cells
Subjects: Q Science > Q Science (General)
Q Science > QH Natural history > QH301 Biology
Divisions: Faculty of Medicine, Health and Life Sciences > School of Biological Sciences
Depositing User: Mrs Hannah Akinwumi
Date Deposited: 08 May 2018 09:07
Last Modified: 08 May 2018 09:07

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