Effects of Salinity,Temperature and Stocking Density on the Growth and Srvival of White Race Sea Cucumber(Apostichopus japonicus) Larvae

In order to raising lavae of white race sea cucumber(Apostichopus japonicus) in large scales,the survival and growth of larvae under different environments should be investigated.In present study,the larval survival and growth of white and ordinary A.japonicus at different salinities(25,29,33 and 37),temperatures(19,21,24 and 27 ℃),and stocking densities(0.1,0.2,0.4,0.6 ind/mL) were compared in order to optimize rearing condition.It was found that salinity 25,19 ℃ and stocking density 0.6 ind/mL are optimal;high survival and growth were observed.