Survival, growth and intermolt period of juvenile Penaeus chinensis (Osbeck) reared at different combinations of salinity and temperature

Abstract

Penaeus chinensis (Osbeck) juveniles (0.23-0.36 g) were reared at 16 combinations of salinity (10.20, 30 and 40 ppt) and temperature (12°, 18°, 24°and 30°C) for 50 days. All shrimp survived at 20 ppt and 18ΔC, whereas no shrimp survived at 10 ppt and 12°C after 30 days. Animals at 20 and 30 ppt and at 30°C grew significantly faster (P < 0.05) than those at 30 and 40 ppt at 24°C. and at 40 ppt and 30°C. The intermolt period of shrimp was 21.5-28.5 days, 10.8-14.4 days, 8.0 8.9 days and 7.4-8.5 days at 12°, 18°, 24°and 30°C, respectively. Best growth of juvenile P. chinensis was achieved over the range 20-30 ppt at 30°C.