Biological reproduction aspects of jaguar guapote (Parachromis managuensis) in Penjalin reservoir Brebes-Central Java, Indonesia
Paper Details
Biological reproduction aspects of jaguar guapote (Parachromis managuensis) in Penjalin reservoir Brebes-Central Java, Indonesia
Abstract
Jaguar Guapote (Parachromis managuensis) is an introduction fish in the Penjalin Reservoir, whose population is constantly increasing. It even tends to cause a loss of native species in that reservoir. The anticipation of the increase in this fish population can be conducted by control effort comprehensively. This study aimed to assess the biological reproduction aspects and stock control in the future. Biological reproduction aspects examined including the growth pattern, fecundity, gonadal somatic index, diameter of eggs and length at first maturity. Analysis of stock control involving a determination of optimal size to capture the populations of the mature gonad. Jaguar Guapote that was caught had a size of 9-20.8cm with a weight of 5-130gr, the growth pattern was positive allometric with the fecundity of 1190-18240eggs/female and diameter of eggs from 0.38 to 1.63mm. Jaguar Guapote classified as partial spawner. Length at first maturity in female and male was 13.14cm and 14.14cm, respectively.
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