Quantitative traits correlative analysis and growth comparison among different populations of bay scallop,Argopecten irradians

The shell traits and weight traits are measured in cultured populations of bay scallop,Argopecten irradians.The results of regression analysis show that the regression relationships for all the traits are significant(P<0.01).The correlative coefficients between body weight,as well as tissue weight with shell length,shell height and shell width are significant(P<0.05).But the correlative coefficients between the anterior and posterior auricle length with body weight as well as tissue weight are not significant(P>0.05).The multiple regression equation is obtained to estimate live body weight and tissue weight.The above traits except anterior and posterior auricle length are used for the growth and production comparison among three cultured populations,Duncan's new multiple range procedure analysis shows that all the traits in the Lingshuiqiao(LSQ) population are much more significant than those of the other two populations(P<0.01),and there is no significant difference between the Qipanmo(QPM) and Dalijia(DIJ) populations in all traits(P > 0.05).The results indicate that the LSQ population has a higher growth rate and is expected to be more productive than the other two populations.