养殖密度对史氏鲟生长影响的研究结果表明 ,在养殖密度分别为 0 .2 32、0 .6 6 5、1.34 7和 2 .46 9kg·m-2 的流水环境中 ,各密度组的史氏鲟稚鱼的生长表现为不等速性 ,但生长离散没有加剧 .试验持续 2 8d后 ,各组的生长表现出显著差异 ,生长效率、特定生长率和日增重都随密度的增大而降低 ,而饵料转化率和净增重随密度的增大而增大 .特定生长率 (SGR)与养殖密度 (D)之间存在着显著的负相关 The results of stocking density on the growth of Amur sturgeon showed that in the flowing water environment with the stocking densities of 0.222, 0.665, 1.347 and 2.46 kg · m-2, The growth of juvenile sturgeon was not uniform but its growth was not aggravated.The growth of each group showed significant difference after 28 days of experiment, and the growth efficiency, specific growth rate and daily gain were all increased with the increase of density , While the conversion rate and net weight gain of feed increased with the increase of density, there was a significant negative correlation between specific growth rate (SGR) and stocking density (D)