本文研究了水质盐度与三角帆蚌幼蚌生长的关系。结果表明:盐度对三角帆蚌幼蚌生长有明显的影响,两者间的关系为:Y=0.241x·e~(-2.424 7x)(r=-0.9878)。盐度为0.15～1.5时比较适宜于三角帆蚌幼蚌的生长,最适宜范围为0.3～0.7,当盐度为1.5～2时,则随盐度的增加,其生长率明显下降,致死盐度大致为3～5。经不同盐度驯养的三角帆蚌幼蚌对盐度的反应也有所不同。 The paper studied the relationship between water salinity and the growth of Hyriopsis cumingii. The results showed that the salinity had a significant effect on the growth of Hyriopsis cumingii, the relationship between them was: Y = 0.241x · e ~ (-2.424 7x) (r = -0.9878). When the salinity is 0.15-1.5, it is more suitable for the growth of Hyriopsis cumingii, the most suitable range is 0.3 ~ 0.7. When the salinity is 1.5 ~ 2, the growth rate decreases obviously with the increase of salinity, Degree is about 3 ~ 5. The response of salinity to the Hyriopsis cumingii juvenile, which is domesticated at different salinities, is also different.