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Journal of Fisheries International

ISSN: Online 1993-6025
ISSN: Print 1817-3381
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Mortality of Hybrid Catfish (Clarias gariepinus x Heterobranchus bidorsalis) Fingerlings at Varying Salinity Levels

Francis O. Nwadukwe, Uwgemorabong U. Gabriel and Awotongha J. Gbulubo
Page: 71-74 | Received 21 Sep 2022, Published online: 21 Sep 2022

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https://doi.org/10.36478/jfish.2011.71.74

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Abstract

About 100% mortality was recorded in hybrid catfish fingerlings that were exposed to 10 and 12 ppt at the 3rd and 12th h, respectively. Those in 6 and 8 ppt had 90 and 25% survival, respectively at the end of 96 h. Median Lethal Salinity (MLS96) for 10 ppt was 5.55 h. The cumulative mortality at the various salinity concentrations did not differ in 4 and 6 ppt but differed in 8, 10 and 12 not differ from 12-48 h and between 72 and 96 h (p>0.05). Water temperature values ranged from 26.0°C, dissolved oxygen ranged from 5.2 mg c-1 to 6.8 mg L-1 while pH ranged from 5.2-6.6.

How to cite this article:

Francis O. Nwadukwe, Uwgemorabong U. Gabriel and Awotongha J. Gbulubo. Mortality of Hybrid Catfish (Clarias gariepinus x Heterobranchus bidorsalis) Fingerlings at Varying Salinity Levels.
DOI: https://doi.org/10.36478/jfish.2011.71.74
URL: https://www.makhillpublications.co/view-article/1817-3381/jfish.2011.71.74