<![CDATA[The Pelus River is one of several rivers in Banyumas Regency. The Pelus River is 20 km longand flows into the Klawing River in the Sokaraja area. Snakehead fish is an endemic fish fromAsia, which belongs to the Channidae family of fish that has high economic value. Fish biologystudies can be one of the basic references during the fish domestication process. This researchmethod is a survey with a purposive random sampling technique. There are three researchstations: upstream, middle, and downstream. At the research station there are three samplingpoints. The results of this study on the sex ratio are 1:1.9 which indicates an abnormalcomparison in the Pelus River. In the aspect of fish reproductive biology, the HSI value ofSnakehead Fish (Channa sp.) ranges from 0.76 - 1.04%, this HSI value is still relatively lowbecause it is still below 2%. The GSI value of Snakehead Fish (Channa sp.) ranges from 0.23%to 0.38%. The GSI value is still below the standard gonad maturity of 4% for fish ready tospawn. The VSI value of the Snakehead Fish (Channa sp.) ranges from 3.45% - 3.57%,meaning that the VSI value is still in a condition towards the level of gonad maturity forspawning. The HSI, GSI, and VSI values are below normal for fish, this is because at the timeof sampling the Snakehead fish had finished at the peak of fish spawning. The peak spawningof Snakehead fish occurs from December to April. The water quality of the Pelus River is stillin good condition for fish life and towards the spawning of Snakehead Fish (Channa sp.).]]>
