Abstract
The aim of this experiment was to find out data and information of growth rate, survival rate and yield of swimming crabs ( Portunus pelagicus ) and rabbit fish ( Siganus gutatus ) which cultured together with different stocking density of rabbit fish in brackishwater ponds. Nine brackishwater ponds with the dimention of 100 m 2 with 100 cm depth were used. Crablet of 17 th of 7.2 + 0.2 mm charapace width and 0.05 + 0.02 g body weight were used in this research with stocking density of 300 ind/100 m 2 . During the rearing the crabs were fed trash fish ( Sardinella sp ) given of twice a days, dosage 5% of total body weight. Experiment was carried out on complete randomized design with treatments were stocking density of rabbit fish i.e. 20 ind/100m 2 (A), 30 ind/100 m 2 (B), and 40 ind/100m 2 (C) with three replicates. The rabbit fish of length were 9.1 + 0,8 cm and weight of 15 + 0.6 g were used. The result showed that the growth of body length and weight and survival rate of swimming crabs and rabbit fish were not significantly different (P>0.05), but the yield of rabbit fish was significantly different (P<0.05).
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