条斑星鲽生长与生态转化效率的初步研究

Preliminary studies on the growth and ecological conversion efficiency of young fish of Verasper moseri

在人工养殖的条件下（自然光照，水温为11～16．3℃），对初始平均体质量为29．64g土5．98g的条斑星鲽（Verasper moseri Jordan et Gilbert）幼鱼1周年的生长和生态转化效率进行定期测定。结果显示：条斑星鲽的体长和体高在实验期间皆呈直线增长；体质量的增长可以分为两个阶段：前期呈指数生长，后期为直线增长。体长和体质量呈指数函数关系：W=10^-5 L^3.0226，r=0．9893。条斑星鲽幼鱼周年的生长率和生态转化效率都较高，属于高生长类型鱼类；生态转化效率周年波动范围是34．16％～91．07％，特定生长率的周年波动范围是0．170～1．527．

Under culture condition（natural photoperiod, water temperature 11-16. 3℃）, the annual growth curves of body＇s weight , length and height, the ecological conversion efficiency rind the special growth rate of Verasper moser with its body＇s weight of 29.45 g ±5.98 g at the beginning of the experiment were determined, The results showed that in the period of the experiment, the body＇s length and height increased with time in straight lines, but the curve of the body＇s weight could be divided into two parts： one was a straight line, the other was an exponential curve. The relation between the body＇s weiight and the body＇s length was an exponential function, and the equation was W： 10^-5 L^3.0226 ,r= 0. 989 3, It also was indicated that V. moser belonged to the quick growth species： the growth and ecological conversion efficiency ranged from 34, 16% to 91.07%, and the special grow rate ranged from 0. 170 to 1. 527.