CAGE CULTURE OF SCALLOPED SPINY LOBSTER, PANULIRUS HOMARUS (LINNAEUS 1758) IN DIFFERENT COASTAL WATERS CONDITION AT GILIMANUK BAY, BALI, INDONESIA

Abstract

Scalloped spiny lobster (Panulirus homarus) has a high market price in Asia. This research has the aim of obtaining theirs survival, growth and health that is reared at different locations. The study using 6 floating net cage of 3x3x3 m  in 2 location at Gilimanuk Bay-Bali. The lobster with initial body weight (BW) 70±2.9 g, carapace length (CL) 5.55±0.8 cm, total length (TL) 13.15±0.16 cm and density of 150 ind./cage. Feeding were 2x/day, with trash fish 5% and dry pellet 1% biomass/day. The sampling was TL, BW, water quality, total haemocyte and brix index. The survival rate during 4 month rearing, higher on B (97.57±1.67%), compared with on A (54.54±14.64%). The grow of BW and TL on B (183.57±57.0 g, and 17.67±0.91 cm) was higher  than A (125.33±15.3 g, and 15.85±0.43 cm). The total haemocyte and brix index on B (669.4±55.34 x10⁴/ml and 16.9±3.38 %) was higher than A (459.5±35.56 x10⁴/ml and 11.3±2.34 %⁾. Water quality especially total Vibrio and plankton density, on location A was higher than B. From that data can be concluded that on location B is very possible and on location A is not possible for Scalloped spiny lobster cage culture.