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International Journal of Zoology
Volume 2013, Article ID 452329, 8 pages
http://dx.doi.org/10.1155/2013/452329
Research Article

Reproductive Strategy of Labeobarbus batesii (Boulenger, 1903) (Teleostei: Cyprinidae) in the Mbô Floodplain Rivers of Cameroon

1The University of Dschang, Faculty of Agronomy and Agricultural Sciences, Laboratory of Applied Ichthyology and Hydrobiology, P.O. Box 222, Dschang, Cameroon
2The University of Douala, Institute of Fisheries and Aquatic Sciences of Yabassi, P.O.Box 2701, Douala, Cameroon
3The University of Mountains, P.O. Box 208, Banganté, Cameroon

Received 20 March 2012; Revised 12 November 2012; Accepted 6 February 2013

Academic Editor: Michael Thompson

Copyright © 2013 Claudine Tekounegning Tiogué et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Aspects of the reproductive strategy of African carp, Labeobarbus batesii, were investigated from May 2008 to October 2009 in the Mbô Floodplain of Cameroon. Samples were collected monthly from artisanal fishermen. The total length and total body mass of each specimen were measured to the nearest mm and 0.01 g, respectively. Sex was determined by macroscopic examination of the gonads after dissection. The sex ratio was female skewed (overall sex ratio: 1 : 1.42). Females reach sexual maturity at a larger size (213 mm) than the males (203 mm). The mean gonadosomatic index ranges from % to %, whereas the mean K factor ranges from to . These two parameters are negatively correlated. The reproduction cycle begins in mid-September and ends in July of the next year, and they are reproductively quiescent for the rest of the year. Labeobarbus batesii is a group-synchronous spawner with pulses of synchronised reproduction spread over a long period. The mean absolute, potential, and relative fecundities are oocytes, oocytes, and oocytes/kg, respectively. The fecundity is higher and positively correlated with the gonad mass than with body size. Its reproductive biology suggests that L. batesii is suitable for pond culture.