摘要
对生活在新安江水库的太湖新银鱼进行了生长测算，并测定了各体长组的肥满度，结果如下：（１）体长和体重的相关关系Ｗ＝３．４３２×ｌ０￣（－６）Ｌ￣（３．０５６）（ｒ＝０．９９８），（２）体长和体重的生长方程分别为Ｌ＿ｔ＝８０［１－ｅ￣（－０．１２４（ｔ＋０．１９８）］￣3和Ｗ＿ｔ＝２．２５［１－ｅ￣（－０．１２４（ｔ＋０．１９８）］￣３；（３）拐点年龄为８．８１月龄；（４）体长增长以１～２月龄最大，体重增长以８～１０月龄最快；（５）体长５５～６０ｍｍ的鱼肥满度最大。
The growth of Neosalanx taihuensis Chen in Xinanjiang Reservoir and its condition factors of fish with different body lengths were measured and analysed,The results show that:(1)the correlative relation of body length and body weight is W=3.432×10￣(-6)L￣(3.056)(r=0.998);(2)the growth equations of body length and body weight are Lt = 80[1-e￣(-0.124(t+0.198))]and W_t=2.25 [1-e￣(-0.124(t+0.198))]￣(-3), respectively,(3)the turning age is 8.8l months;(4)the ages with the fastest increases both in body length and body weight are l-2 months and 8一l0 months,respectively;(5)the condition factors of fish with 55～60 mm of body length are the bigest.
关键词
新安江水库
银鱼
生长特性
肥满度
Xinanjiang Reservoir
Neosalanx taihuensis Chen
Growth patterns
