Abstract

Summary The sex ratio of Labeo capensisdid not differ significantly at a 95% confidence level from a 1♂:1♀, ratio during the study period. The smallest sexually mature male and female L. capensis were 20 cm and 21 cm FL, respectively. Fifty percent of the males matured at 23 cm FL whereas females matured at 26 cm FL. In large ripe females (> 38 cm FL) the ovaries were as much as 15% of body mass. The males and females are two to three years old when they reach the minimum length at maturity. A linear relationship between fish mass and fecundity was obtained. The gonads of the males and females started enlarging during August, reached a peak during December to January and gradually decreased in size by February. Water temperature correlates with the development of the gonads in both male and female L. capensis, and the decrease in gonado-somatic index shows that spawning is not dependent on flooding.

Full Text
Paper version not known

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.