Contact with Males is not Necessary for Natural Spawning of Tilapia Females, and Natural Spawns of Isolated Females Remain Viable for Controlled Artificial Reproduction.

doi:10.4314/jgsa.v10i2.18037

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Contact with Males is not Necessary for Natural Spawning of Tilapia Females, and Natural Spawns of Isolated Females Remain Viable for Controlled Artificial Reproduction.

M Owusu-Frimpong

Abstract

Blue tilapia Oreochromis aureus (Steindachner) females isolated in glass tanks from visual, olfactory or behavioural contact with males spawned spontaneously, indicating that females do not require cues from males to spawn naturally. Inter-spawning interval of isolated females in contact (17.0 days) and out of contact (17.3 days) with males was shorter (P

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Journal of the Ghana Science Association. ISSN: 0855-3823

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