密度对凡纳滨对虾存活、生长和能量收支的影响

研究了密度（12.04、24.08、48.16、144.49、240.81、337.13、433.46、529.78、626.11尾×m-2）对凡纳滨对虾（平均初始湿重0.026±0.006g）存活、生长和能量收支的影响。实验周期45d。结果表明：I.12.04、24.08和48.16尾×m-2密度水平对虾的存活率显著高于626.11尾×m-2密度水平，但与其它处理差异不显著；II.12.04和24.08尾×m-2密度水平对虾的特定生长率显著高于其它处理，特定生长率（SGRd）与密度（D）的回归方程为：SGRd=-0.3911Ln(D)+10.068 (R2=0.8745)。

Effects of stocking densities on survival, growth and energy budget of juvenile Litopenaeus vannamei

The experiment was conducted to determine the effects of stocking densities (12.04, 24.08, 48.16, 144.49, 240.81, 337.13, 433.46, 529.78, 626.11 individuals×m-2) on survival, growth and energy budget of juvenile L. vannamei with the initial wet body weight of 0.026±0.006g. The experiment lasted for 45 days. The results showed that I. The survival for densities of 12.04, 24.08 and 48.16 individuals×m-2 were significantly higher than for density of 626.11 individuals×m-2, but were not significantly different from other treatments. II. The specific growth rate for densities of 12.04 and 24.08 individuals×m-2 were significantly higher as compared with other treatments; the relationship between specific growth rate (SGRd) and density (D) was described by the following regression equation: SGRd=-0.3911Ln(D)+10.068 (R2=0.8745).