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.
出处
《湖泊科学》
EI
CAS
CSCD
北大核心
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)
关键词
铜山源水库
美国大口胭脂鱼
年龄组成
生长
Tongshanyuan Reservoir
lctiobus cyprinellus (Valenciennes)
age composition
growth