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实测和回归分析鄱阳湖鮊属(Culter)的翘嘴鮊(C．alburnus)、蒙古鮊(C．mongolicus)、达氏鮊(C．dabryi)和原??属(Culterichthys)的红鳍原鮊(C．erythropterus)体重与体维关系．结果表明,多元回归方程能全面地反映不同体维对鱼类体重的影响,体重与体侧面积体厚的回归方程较适宜．其体重(W)与体侧面积(A)及体厚(T)的幂函数关系式分别是,翘嘴鮊:W=4．05051×10~(-3)A~(0．66260)T~(1．41994);蒙古鮊:W=3．18603×10~(-3)A~(0．66845)T~(1．44376);达氏鮊:W=1．99310×10~(-3)A~(0．70982) T~(1．47305);红鳍原鮊:W=3．58823×10~(-3)A~(0．63253)T~(1．49465)．
The results of field survey and regression analysis showed that C. alburnus, C. mongolicus, C. dabryi and Culterichthys in the Poyang Lake belonged to the genus Culterichthys (C.erythropterus) weight and body-dimensional relationship. The results showed that multivariate regression equation can fully reflect the effect of different body dimensions on fish body weight, and the regression equation of body weight and body-side area body thickness is more suitable. The relationship between body weight (W) and body area (A) and body thickness (T) is as follows: C = 4.05051 × 10 -3 A ~ (0.66260) T ~ (1.41994); Mongolia 鮊: W = 3.18603 × 10 ~ (-3) A ~ (0.66845) T ~ (1.44376); Datsun 鮊: W = 1.99310 × 10 ~ -3) A ~ (0.70982) T ~ (1.47305), and the color of the red fins: W = 3.58823 × 10 -3 ~ 0.63253 T ~ (1.49465).