摘要
为了提高暗纹东方鲀仔鱼的成活率,把已处理的池塘水、地下水混合成盐度为4～6的咸淡水,在咸淡水(试验池)中培育的暗纹东方鲀仔鱼比在淡水中(对照池)培育的仔鱼成活率高,平均成活率从31.82%提高到54.87%,差异显著。在试验中发现刚出膜3天的仔鱼能忍受从淡水至盐度6的突然变化,平均全长12 mm的稚鱼能忍受从盐度6至淡水的突然变化,处理后的咸淡水对暗纹东方鲀仔鱼和稚鱼是无毒、安全的,并发现稚鱼间的相互残食习性推迟和减轻了。
In order to improve the survival rate the fry was reared in the mixing water the salinity of which was between 4‰and 6‰and in the freshwater respectively.The result indicated that the survival rate of the fry cultivated in the brackish water was apparently higher than that of the other group.The fry about 3days old could endure the abruptly change of the salnity from 0 to 6‰,and the fry whose bodylength was 12 mm could endure the abruptly change of the salinity from 6‰to 0,the mixing wa- ter was safety to the fry and the phenomena of the cannibalism lessened.
出处
《齐鲁渔业》
2009年第2期1-3,共3页
Shandong Fisheries
