Abstract:

The purpose of this paper is to study the relationship between morphometric characters and weight characters of hybrid scallop and zhikong scallop Chlamys farreri, which can give more valuable information to people to achieve the effective work of scallop’s selective-breeding. So 60 hybrid scallop from female C. farreri and male Patinopecten yessoensis, and 60 C. farreri were collected randomly in the same sea area. And then the shell length, shell height, shell width, the live body weight and muscle weight were measured individually. The correlation coefficients, path coefficients and determination coefficients between morphological characters and weight were calculated by correlation analysis and path analysis. Impact factor of each character was analyzed lastly. The results showed that the correlation efficients between each morphological character and weight were all at extremely significant level (P<0.001) in the two kind of scallops. Three morphological characters had different direct contributions to weight. As to the hybrid scallop, the shell height was the major direct factor to the weight of live body and muscle. While as to the C. farreri, the direct effect of shell height on body weight was the greatest. And the greatest direct effect on muscle weight was the shell length. So the selective work for hybrid scallop mainly depends on shell height while C. farreri scallop depends on shell height and shell width.