In recent years, cultured abalone (Haliotis diversicolor) larvae can not settle on thecorrugated plastic sheet, meanwhile the juvenile and the adult abalone can not be grewto market size. The causes of this phenomenon are unknown. The possible factors mayinclude the genetic variation of abalone, pathogens or the environmental stresses.Culture practice management is needed. To elevate the ability of this abalones' antistressof environment is an extremely urgent need. The aim of this project will focus onthe enhancement of resistances to environmental stresses such as salinity and usingselection and breeding strategy. In the short term, different salinities sea water will beused to shock abalone in a short time to screen the high tolerance to low salinity. Thelong term goal of this project is to select strains of abalone that are tolerance to lowsalinity.