| To protection and development of the quality fish resources ,this text is made theprimary research about growth speciation on blue crucian carp. It's employ the shape on fivedifferent species of carp with blue crucian carp and white crucian carp. It's comparedresearch on witch employ the shape on five different species of that carp about growthequation and other indexes.This text use both Variance analysis and Gathers a kind Of analysis in SAS software asmajor methods to generalized analyse the morphological Character Ofstrains of fiveCarassiasn auratus under traditional morphology determination and frame determination. Noremarkable difference retains Carassias auratus. Changsha and Carassias auratus cuvieriTemminck et Schlegel under Gathers a kind of analysis, but the opposite situation appearancein the others. Carassias auratus. Hong,Carassias auratus cuvieri Temminck et Schlegel,Carassias auratus. Changsha,Carassias auratus var. Pengze and Carassias auratus. Dongtinghas remarkable difference respective under Variance analysis. The result of the two analysis isrelatively consistent, which indicate the distinction compared blue crucian carp and whitecrucian carp with with other species.The result of Gathers akind of analysis indicates obvious different in other remarkabledifference respective.With Von-the Bertalanffy growth equation [1] and the mathematical statistic method[2],This article showed the preliminary exploration of the growth characteristic of blue cruciancarp,. The result indicated that, we can express the relations between the body length and thescale diameter of the blue crucian carp with this equation :L=-163.265+22.72559R(r=0.999066); as well as The body weight and the body length relations are W=0.41348L220259(r=0,99787), Von-the Bertalanffy growth equation is : Lt=39.72111*(1-e-0.25038(t+0.55587));Wt=1375.322(1-e-0.25038(t+0.555878)). the growth flection point of the body weight locates on3.724. This remarkable difference indicates the growth speciation. |
