EFFECT OF SODIUM HYPOCHLORITE (NaOCl) ON FERTILITY, HATCHABILITY AND SURVIVAL OF FRY OF CLARIAS GARIEPINUS

Ijeoma Fvaour Vincent-Akpu University of Port Harcourt, Port Harcourt, Rivers State, Nigeria
Edafe Odioko Akdeniz University, Antalya, Turkey
Mercy Trinya Jack University of Port Harcourt, Port Harcourt, Rivers State, Nigera

DOI: https://doi.org/10.15835/agrisp.v107i3-4.13062

Abstract

The use of Sodium hypochlorite (NaOCl) often as disinfectants in hospitals in treating wastewater in order to prevent the spread of pathogenic microorganisms, causal agents of nosocomial infectious diseases and as bleaching agent for washing cloth have led to it been released in large quantity into the environment. This chemical finds its way into the aquatic ecosystem through runoffs.This aim of this study was to evaluate the effect of sodium hypochlorite (NaOCl) on fertility, hatchability and survival of Clarias gariepinus eggs exposed to sublethal concentrations of sodium hypochlorite after 28 days. The eggs of Clarias gariepinus were fertilized and incubated in sublethal concentrations (0.2 mg/L, 1 mg/L, 1.5 mg/L and 5 mg/L) of sodium hypochlorite and control. The percentage of fertilized eggs, percent hatchability and survival rate were calculated. There was concentration dependent reduction in hatchability of eggs and survival rates of fry exposed to sodium hypochlorite solution. These reductions were significantly difference for the different concentrations at p < 0.05. This implies that sodium hypochlorite inhibits hatchability and survival of Clarias gariepinus which could disrupt reproductive process of this species in the wild.

Author Biographies

Ijeoma Fvaour Vincent-Akpu, University of Port Harcourt, Port Harcourt, Rivers State, Nigeria

Faculty of Science, Department of Animal and Environmental, Fisheries and Hydrobiology Unit, (Senior Lecturer and Head of Department)

Edafe Odioko, Akdeniz University, Antalya, Turkey

Akdeniz University, faculty of Aquaculture Engineering, PhD Student

Mercy Trinya Jack, University of Port Harcourt, Port Harcourt, Rivers State, Nigera

Master Student at the Fisheries and Hydrobiology unit, Department of ANimal and Environmental Biology, Faculty of Science.

Effect of Sodium Hypochlorite (NaOCl) on Fertility, Hatchability and Survival of Fry of Clarias gariepinus

Published

2018-12-13

Issue

Vol. 107 No. 3-4 (2018): AGRICULTURA

Section

Research articles

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