Increasing productivity of snakehead fish (Channa striata) juvenile in ponds with different bottom substrates

Abstract

Low production of striped snakehead juvenile in ponds is due to the difference between pond and their natural habitat. Bottom substrate might probably a factor influencing the growth performance of striped snakehead juvenile. The purpose of this research was to determine the best bottom substrate to increase growth performance of striped snakehead juvenile reared in ponds. A randomized design consisted of three treatments of bottom substrates, sand, mud, no substrate as control, with three replications were used in the present study. Striped snakehead juvenile sized 6.1±0.05 cm and 2.11±0.07 g were in a 3 × 2 × 1 m plastic line pond, with 30 cm depth water. The density of fish were 20 fish per m3 and juveniles reared for 60 days. The result showed that juvenile reared with sand substrate had better survival rate and blood glucose (P<0.05) than other treatments. The substrate treatments, sand and mud, were also better in absolute length, absolute weight, specific growth rate, than no substrate one (control). In contrast, control was better than substrates treatments (sand and mud) in feed efficiency. Overall data indicated that sand substrate is a supporting environment for growing out juvenile of snakehead fish.

Profile of ectoparasites and biometric condition of snakehead (Channa striata Bloch 1793) collected from different habitats

“…Snakehead fish could live in a fluctuating environment and distribute in almost all Indonesian waters. The natural habitat of snakehead includes paddy fields, swamps, rivers, and ditches (Dosi et al, 2019;Widyastuti et al, 2020;Gustiano et al, 2021; Depik Jurnal Ilmu-Ilmu Perairan, Pesisir dan Perikanan Volume 10, Number 3, Page 284-292 Zulfahmi et al ( 2021) Saura et al, 2021). Based on its feeding habits, snakehead were categorized as carnivore, where at the larval stage, snakehead consume zooplankton, while as adults, they eat gastropods, insects, worms, and small fish (Marhana et al, 2017;Arsyad et al, 2018;Liana et al, 2020).…”