Growth performance of the chocolate mahseer Neolissocheilus hexagonolepis (Mc Clelland) in pond system in Arunachal Pradesh

Abstract

Growth performance of the chocolate mahseer Neolissocheilus hexagonolepis (Mc Clelland) cultured in an earthen pond was
studied separately for adults and yearlings in terms of specific growth rate and net length gain during October 2003 - June
2004 and September 2004 - August 2005, respectively. Forty five adult fishes having an average length of 190.30 mm and
average weight of 88.05 g were cultured in the pond at a stocking density of 1 no. /13.4 m2. The gross increment in size of
adult fishes after 278 days of culture was 82.87 mm (29.80% days) in length and 119.01 g in weight. Four hundred fifty
numbers of yearlings of average length 127.39 mm and weight 19.58 g were cultured at a stocking density of 1no. /1.34 m2
for 333 days. The yearlings gained a net length of 78.86 mm and a net weight of 61.40 g.