Re-stocking' model of snakehead farming, Channa striata blkr in the swamp bangkau of South Kalimantan Province

Abstract

Untung Bijaksana, Hidayaturrahmah, Dan Dewi Kartika Sari

Snakehead, Channa striata Blkr is one of the freshwater commodities with high economicvalue. While meeting the needs of this largely still based on the fish catch in the wild. From the results of research in the last 5 years seen fish reproduction snakehead pattern can be used as a basis for the application of the "Re-Stocking". The fish used is snakehead caught in the wild, 30 individuals were taken as samples, each month for further observations on some reproductive indicators such as body weight, gonad weight, liver weight, gonado somatic index, somatic hevato index, egg diameter, fecundity and estradiol-17β. The results of recent research findings from March to July 2014, that the body weight of 210 grams to 220 grams per fish, gonad weight of 5.5 grams to 7.0 grams per fish, liver weight from 1.5 grams to 1.9 grams per head, Gonado somatic index of 2.62% until 3:18 %, hevato somatic index of 0.71% to 0.86%, egg diameter 0.9 mm to 1.3 mm, the fecundity of 3025 points to 3105 points and E2 of 90 pg / ml to 125 pg / ml. From these results it can be concluded that at the peak of the dry season, snakehead will be at the end of the maturity level. At the time of arrest should be selected based on the "size", to be manipulation that can spawn in the container cultivation. For the next "seed" obtained stocked back into natural waters.