Growth pattern and maturity level of Chevron Snakehead's gonad (Channa Striata)

Abstract

Chevron Snakehead (Channa striata) is one kind of freshwater fish that has high nutrient content, particularly albumin. Chevron Snakehead is mostly found in public waters and has not cultivated extensively. This research was aimed to investigate the behaviour, the biological features, the maturity level of gonad, and the growth pattern of Chevron Snakehead. This research was conducted in Tukad Yeh Sungi and irrigation canal of Subak Baru in Baturiti Sub-district, Tabanan Regency in 30 September until 27 October 2017 by using observation, descriptive, and analitical methods. Chevron Snakehead which was found in this research was Channa striata that mostly found in deeper waters with rocky or sandy substrates. This fish is included into nocturnal and carnivora. b. based on the maturity of the gonads of male Chevron Snakehead the testicular weight was 0.1-0.85 gr. Whereas for females it has a gonadal weight of 0.5-1.86 gr. Chevron Snakehead found in rivers have allometric growth patterns, with b values obtained <3 which are b values of females = 2.8696 and b values of males = 2.3335, therefore the growth pattern of Chevron Snakehead was allometric negative. Negative allometric is the dominant increase in on weight gain.