Abstract:

50 one-year-old Anguilla reinhardtii were random-sampled for measuring the morphometric attributes, including the total length, body length, dorsal fin length, anal fin length, body depth, head length, long kiss, diameter of eye, eye distance, mouth width and body weight. The correlation coefficients among the attributes were calculated, and then path analysis was conducted by taking the body weight as a dependent, and other ten morphometric attributes as independent variables. In addition to diameter of eye and head length outside each other morphological traits between body weight had reached very significant (P<0.01) level. The three morphometric attributes (the total length, body depth, mouth width) were retained, and the path coefficient of the total length weighted the most (P1=0.398) to the body weight. Judged from the results of correlation index (R2=0.965), the main variables had been selected. We had obtained the multiple regression equation to estimate the body weight as Y=-1412.565+1.923X1+13.000X5+15.767X10, which provided a theoretical basis for Anguilla reinhardtii breeding.