Genetic Diversity in The Wild Population and Hatchery Stock of Penaeus japonicus Shrimp by Isoenzyme Analysis

Penaeid shrimp Penaeus japonicus,commonly named as Flowery Shrimp or Banded Shrimp,is one of the most commercially important species of marine crustacean fishery in China.Being of the warm-water species conducting short distance migr ation,the animal is mainly distributed in the coastal waters of south China,I.e.the southern part of the East China Sea and the South China Sea (Liu et al.,1986).