Several species of catfish are farmed across the African mainland with Clarias gariepinus (North African Catfish, also known as the African Sharptooth Catfish) being the most commonly used and the subject of this article. This species occurs across virtually the entire continent in freshwater lakes, swamps, pans and rivers. The optimal temperature for this species is 27-28°C, so during the summer months the adults are ready to spawn, but delay spawning until rains cause rivers to swell……….

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