Preliminary studies on spring seed production of Chlamys farreri and temporary cultivation of the seedings in shrimp pond

Zhikong scallop Chlamys farreri plays an important role in China's mariculture. The seeds of this species were collected artificially from natural waters at present. Thus, it is difficult to meet the needs in quantity and quality and the development of the industry is seriously limitted. The artificial reproduction experiment in spring was carried out from February to June of 2007 in Hongdao Clam Original and Eugenic Breed Development Co.Ltd. Under relative low water temperature (about 6.9℃) , by promoting water temperature gradually, the induced mature was obtained. After 23 days' indoor culture, the parents spawned. In the water body of 52 m3, 12.8106 seeds with mean shell height 719.5865.74 m were got. After the temporary cultivation，there were 8.3106 individuals. Temporary cultivation was carried out in the mended shrimp pond. Because of the suitable temperature and abundant bait-organisms in the shrimp pond, the survival rate of the juvenile was increased, reaching 65%.