摘要
尖鳍鲤是一种能长期适应咸淡水生活的鲤科鱼类， 其受精、孵化可在０ ～１２５ ‰盐度范围内进行， 最适盐度为２５ ‰～７５ ‰； 卵黄囊仔鱼能适应１５０ ‰的盐度， 适宜的盐度是２５ ‰～７５ ‰； 在７５ ‰的盐度下生长最好， 存活率最高， 卵黄的吸收最快； 经每级２５ ‰的盐度梯度（ 范围０ ～３０ ‰） 驯化一周， 尖鳍鲤仔鱼最高能适应２５０ ‰的盐度， 比野鲤适应盐度的范围高（ 野鲤仔鱼最高为６０ ‰）
This paper describes the effects of salinity on fertilized eggs and larvae of seacarp ( Cyprinus acutidorsalis ). The fertilization and incubation of seacarp can proceed normally under the salinity of 0～12 5‰ while the optimal salinity is 2 5%～7 5‰. The yolk sac larva can tolerate the salinity of 15 0‰ but the suitable salinity is 2 5‰～7 5‰. Under the salinity of 7 5‰, there would be optimal growth and the highest survival rate, and the absorption of yolk is the fastest. In a week of acclincation, every step of changed salinity is 2 5‰(range:0～30 0‰). The maximum adaptive salinity of the juvenile of seacarp is higher than that of juvenile of common carp (which is 6 0‰).
关键词
尖鳍鲤
早期发育
盐度
seacarp ( Cyprinus acutidorsalis )
early growth
salinity.
