| Summary: | A study was conducted to find the effect of stocking density on bio-growth, specificgrowth rate, percent weight gain and survival of Wallago attu larvae duringin-door larval rearing. The larvae of average weight 2.64 + 0.21 mg andlength 5.80 + 0.36 mm were stocked at a density of 2,4,6,8 and 10 nos/l andreared by feeding live zooplankton, for a period of 10 days. The final body weight,specific growth rate and percent body weight gain of larvae was influenced significantly(P<0.05) by stocking densities and highest performance was observedin fish stocked at 10 nos/I. The percent survival of larvae decreased significantlywith increase of stocking density and the rate of survival was similaramong 6nos/I - 10 nos/I groups. The loss of larvae was observed due to cannibalismduring rearing. The lowest stocking density resulted in least cannibalism.Systematic approach and some anatomical feature of W. attu larvae are beleivedto be helpful for predation during rearing.
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