Effect of salinity on growth and survival of Clarias gariepinus (Burchell, 1822): Clariidae fry

Ogunsheye, J.O. and Sogbesan, A.O. (2005) Effect of salinity on growth and survival of Clarias gariepinus (Burchell, 1822): Clariidae fry. In: 19th Annual Conference of the Fisheries Society of Nigeria (FISON) , 29 Nov - 03 Dec 2004 ,Ilorin, Nigeria, pp. 710-714.

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Abstract

The effect of different salinity levels on the growth and survival of Clarais gariepinus fry was studied in indoor hatchery system for a period of three weeks. 1000 Clarias gariepinus fry of an average weight 0.37~c0.06g were stocked at 100 fry in five replicated 20 liters plastic bowls. Five salinity levels of 0.2, 0.4, 1.1, 2.1 and 4.2ppt were tested. The results indicated that significant difference P~.0.05 highest weight gain of 0.89~c0.05g was presented by fry in 0.2ppt medium. All fry raised in 4.2ppt died within 24 hours. No significant difference P~,0.05 in weight gain is presented in fry raised in 0.2ppt-2.1ppt. From this study, the weight gain decreases with increase in salinity. Also the survival rate decreases from 0.2ppt to 1.1ppt raised fry while the lowest significant difference P~.0.05 survivals were presented in fry raised in 2.1 and 4.2ppt. Based on these results and foregoing, salinity rate of 0.4ppt is favourable for growth and survival of C.gariepinus fry

Item Type: Conference or Workshop Item
Title: Effect of salinity on growth and survival of Clarias gariepinus (Burchell, 1822): Clariidae fry
Personal Creator/Author:
CreatorsEmail
Ogunsheye, J.O.
Sogbesan, A.O.
Page Range: pp. 710-714
Date: 2005
Event Title: 19th Annual Conference of the Fisheries Society of Nigeria (FISON)
Event Type: Conference
Event Location: Ilorin, Nigeria
Event Dates: 29 Nov - 03 Dec 2004
Issuing Agency: Fisheries Society of Nigeria
Uncontrolled Keywords: Nigeria; fingerlings; fish culture; growth rate; salinity effects; survival
Subjects: Aquaculture
Biology
Item ID: 4100
Depositing User: Ms Maria Kalentsits
Date Deposited: 31 Aug 2010 13:14
Last Modified: 29 Sep 2011 16:31
Related URLs:
URI: http://aquaticcommons.org/id/eprint/4100

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