Abstract
Reproduction of an estuarine tilapia ( Sarotherodon melanotheron Rüppell, 1852) landlocked in a West-African man-made Lake. Reproduction parameters of a landlocked population of black-chinned tilapia Sarotherodon melanotheron have been studied for 2 years and compared to literature data obtained from their natural environment. Sex-ratio (year 1: 1:2.69; year 2: 1:1.96) is in favour of females and shows seasonal variations. Males mature earlier (year 1: 129 mm SL; year 2: 126 mm SL) than females (year 1: 135 mm; year 2: 136 mm SL). Gonad maturation cycle is continuous. All these results are generally similar to those obtained in the natural environment. However, a lower fecundity is noted in Lake Ayame. Accordingly, an increase in oocyte diameter is observed. The average condition factor in the lake ranges between values observed in lagoon populations and therefore indicates a good adaptation of this species to fresh water conditions.
Sign-in/Register to access full text options 
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 callDisclaimer: 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.
