Pangasius or Jambal or Patin (Pangasianodon hypopthalmus) is freshwater fish species that has high potential in Indonesia on an industrial scale. This Fish has a high tolerance level to the aquatic enviromental change, non cannibalism fish, advanced seed production and artificial feed, and also has fillet fish of end product at cold storage as an advantage. Nursery is the early stage of fish aquaculture after hatchery phase which producing a ready growth out of seed.
The aim of this activity is to find out the best strategy for two pangasius nursery methods at application scale , especially in small land base ponds. Four units of 450 m2 ponds covered with High Density Poly Ethylene (HDPE) at upper side of ponds was carried out for this activity. The method s of this activity were standard nursery method which the fish were stocking at the pond with the 50.000 fish of density. And the other method were using two units of 15 x 10 x 1,2 m happa net cage installed at the pond with 25.000 fish of each cage. . The average of initial body weight were 1,8 gr/fish. The aquaculture management of these two methods were similar and the parameters of these activities were Average growth rate, Survival rate and the level of body uniformity.
The results of 50 days nursery activity showed that the average relative growth value was not much different, The survival rate of usual stocking pond culture ((91,84 %) was better than happa net cage culture (84.6%). The results of the fish body uniformity for standard pond nursery method produce two different size of fish which is better than the happa net cage method (4 different size of fish). The Data Showed that the standard nursery methods with fish stocking fee at pond more recommended than the happa net cage pond method.