浙江铜山源水库美国大口胭脂鱼的年龄组成及生长  

Studies on the Age and the Growth of Large Mouth Buffalo Ictiobus cyprinellus (Valenciennes) in Tongshanyuan Reservoir,Zhejiang Province

作　　者：顾志敏[1] 叶金云[1] 朱俊杰[1] 黄鲜明[1] 葛亚非 苏建胜 

机构地区：[1]浙江省淡水水产研究所,湖州313001 [2]浙江省渔政局,杭州310006 [3]衢州市水利局渔政处,衢州324002

出　　处：《湖泊科学》2005年第4期346-350,共5页Journal of Lake Sciences

基　　金：浙江省重点科研资助项目(011102106)

摘　　要：2002-2004年，在浙江衢州铜山源水库，对该库放养的美国大口胭脂鱼的生长情况进行了研究，结果表明，该水 库美国大口胭脂鱼的鳞片以环片的切割型为主要年轮特征．用刺网所捕的美国大口胭脂鱼渔获物中以Ⅱ、Ⅲ、Ⅳ龄个体为 主．体长和体重的关系式为：W=8．595×10^(-5)15 L^(2.662)，Von Bertalanffy 生长方程的主要生物学参数：L_∞=36．54cm，W_∞= 1．245kg，K=0．6377，t_0=-0．261龄，体重生长的拐点年龄 t_1=1．92龄，拐点体重W_1=0．396kg．与池养鱼类生长情况相 比，铜山源水库的美国大口胭脂鱼生长较慢．The growth performance of large mouth buffalo stocked in Tongshanyuan Reservoir in the period of 2002 - 2004 was studied. The results showed large mouth huffalo, whose scales were mainly characterized by incision , was composed of groups aged Ⅱ, Ⅲ, Ⅳ in gill net catches. The relationship between the body-weight and the body-length can be described as W = 8. 595 × 10^ -5 × L^2.662, the growth patterns can be fitted to a Von Bertalanffy Growth Model, in which L∞ , W∞ ,k, and t0 are 36.54cm,1. 245kg, 0. 6377 and -0. 261ya respectively. At the broken point of the growth equation of body - weight, tr = 1.92ya and Wt =0. 396kg. The growth of large mouth buffalo in Tongshanyuan Reservoir is slower than that of the fish farmed in ponds.

关 键 词：铜山源水库 美国大口胭脂鱼 年龄组成 生长 

分 类 号：S931.1[农业科学—渔业资源]