摘要
在 2 1℃条件下 ,研究了密度对黑生长及能量分配模式的影响。黑在密度为 5 kg/m3和 8kg/m3下的能量收支模型分别为 :1 0 0 A=3 0 .3 7R+69.63 G和 1 0 0 A=48.89R+5 1 .1 3 G。结果表明 ,黑在低密度条件下摄入的食物能量比在高密度条件下更多地分配到生长上。但黑高密度组的湿重、能量摄食率分别比低密度组的高 40 .78%和 3 9.48% ,湿重、能量特定生长率分别高 46.40 %和1 7.2 3 % ,由此可见 ,在本实验条件下 。
The influence of fish density on the growth and energy budget of Sebastodes fuscescens at 21℃ is studied. The energy budget model can be written as: 100 A =30 37 R +69 63 G and 100 A =48 89 R +51 13 G at the density of 5 kg/m 3 and 8 kg/m 3 respectively. The result suggested that the energy in the food consumption of low density group was allocated more to the growth than the high density group. However, weight and energy ration level of the high density group increased by 40 78% and 39 48%; weight and energy specific growth rate increased by 46 40% and 17 23%,by comparison with the low density group. It suggested that on this experimenal condition,the influence of high density on the growth was compensated by higher ration level, so the high density group has high growth rate. Through statistics, the coefficients of variation of two density groups between the initial weight and final weight have not significant differences.
出处
《海洋水产研究》
CSCD
2002年第2期33-37,共5页
Marine Fisheries Research
基金
国家重点基础研究发展规划项目 ( G19990 4 37)资助
关键词
密度
黑鲪
生长率
能量分配模式
Density Sebastodes fuscescens Growth rate Energy budget model
