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Gonadal differentiation and the mode of sexuality in cobitis taenia teleostei cobitidae

, : Gonadal differentiation and the mode of sexuality in cobitis taenia teleostei cobitidae. Copeia (1): 223-228

Gonadal anatomy and development and patterns of development were studied to provide information about the mode of sexuality in Cobitis taenia (Teleostei: Cobitidae). Histological examination of gonads in developing fry showed that the two gonadal anlagen remain paired in males whereas in females they fused to form a single ovary. Few specimens of different ages and size were found with testes containing small numbers of small oocytes. Females grew faster than males; consequently, females were larger than males of the same age. Histological analysis and growth rates indicate that this is a gonochoristic species with a few males containing a few oocytes in their testes.


DOI: 10.2307/1446555

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