盐度对西施舌Coelomactra　antiquata（Spengler）幼虫和贝苗生长发育的影响  

Effects of Salinity on the Growth and Survival of Larvae and Spats of Coelomactra antiquata(Spengler)

作　　者：高如承 齐秋贞 黄雪琴 邱文仁 

出　　处：《福建师范大学学报（自然科学版）》1995年第3期82-88,共7页Journal of Fujian Normal University：Natural Science Edition

摘　　要：本文运用生物统计法确定西施舌幼虫和贝苗的适宜盐度范围，结果表明。Ｄ形幼虫、壳顶幼虫和贝苗对盐度的耐受力不同。Ｄ形幼虫生长的适盐范围为１７．２７～２７．９０‰，且生长和存活的最适盐度是１７．２７～１９．９３‰；壳顶幼虫生长的适盐范围向低盐度延伸，为１３．２９～２７．９０‰，生长和存活的最适盐度为１９．９３‰。平均壳长２．９ｍｍ的贝苗存活适盐范围向高盐度延伸，为１３．２９～３５．８７‰，其中２７．９０‰是贝苗生长和存活的最适盐度。This paper was aimed to determine the optimum salinity ranges of larvae and spats on the basis of analyses of variance. The different tolerance of larvae and spats to salinity was observed. The optimum salinity range for the growth of straight-hinge larvae was 17 .27～27.90%. The straight-hinge larvae had the highest growth rates and the best survival at salinity of 17-27～19.93% .The optimum salinity range for the growth of umboveligers was 13 . 27～27 . 90% and extended to lower salinity than that of straight-hinge larvae.The best survival and highest growth of umbo-veligers were found at salinity of 19 .93% . The spats with average shell length of 2.9mm had best growth and survival at salinity of 27-90%. The optimum salinity range for the survival of spats was 13.29 ～35 .87%.Spats can tolerate higher salinity than larvae.

关 键 词：西施舌 幼虫 贝苗 盐度 生长 发育 

分 类 号：S966.22[农业科学—水产养殖]