论文部分内容阅读
分别用不同盐度梯度海水对双棘黄姑鱼仔鱼进行饲养试验.结果表明:盐度为17.0、22.0、27.0、31.0~33.0的4个试验组仔鱼的不投饵存活系数分别为5.38、7.35、6.46、6.18;各盐度组仔稚鱼的生长速度没有显著差异(P>0.05),各组仔鱼经25d的培养,其平均全长为18.8~19.2mm;盐度22.0及27.0的海水中仔稚鱼呈较高的存活率,各盐度组的平均存活率为36.0%、48.5%、46.7%和39.2%.
The results showed that the survival rates of the four experimental groups with the salinity of 17.0,22.0,27.0 and 31.0 ~ 33.0 were 5.38 and 7.35, respectively , 6.46 and 6.18, respectively. There was no significant difference in the growth rate of juveniles (P> 0.05) among all salinity groups. The mean length of juvenile larvae was 18.8-19.2 mm The juvenile larvae showed a higher survival rate, the average survival rate of each salinity group was 36.0%, 48.5%, 46.7% and 39.2%.