中文摘要：

为实现脉红螺苗种规模化生产,确立适宜苗种生长的环境条件。本文分析了6个不同温度、6个不同盐度和5个不同培育密度对脉红螺浮游幼虫生长和存活的影响。温度实验结果显示：适宜脉红螺浮游幼虫生长的温度范围是24~30℃,最适生长温度是30℃;适宜的存活温度范围是24~30℃,最适存活温度是27℃。盐度实验结果显示：适宜脉红螺浮游幼虫生长的盐度范围是22~30,最适生长盐度是26;适宜的存活盐度范围是22~34,最适存活盐度是26。密度实验结果显示：脉红螺浮游幼虫培育密度不应高于1个/mL,适宜的培育密度范围是0.1~0.5个/mL。

英文摘要：

In this study,we investigated the effects of different temperatures（36,33,30,27,24 and 21℃）,salinities（38,34,30,26,22 and 18）and stocking densities（2,1,0.5,0.2and 0.1ind/mL）on the growth and survival of veined rapa whelk（Rapana venosa）pelagic larvae.The results of temperature treatments showed that temperatures between 24 and 30 ℃ were suitable for the growth of R.venosapelagic larvae,and the optimum growth temperature was 30℃.Such range of temperature was also suitable for their survival,and the optimal survival temperature was 27 ℃.The results of salinity treatments demonstrated that salinities between 22 and 30were suitable for the growth of R.venosa pelagic larvae,and the optimum was 26.Salinities between 22 and 34were suitable for their survival,and the optimal was also 26.The results of density treatments indicated that the stocking density of R.venosa pelagic larvae should less than 1ind/mL,and the suitable density varied between 0.1to 0.5ind/mL.