摘要
采用6种饵料分别投喂秋冬季生殖真鲷的稚鱼，12d后测定其成活率、全长、体重和捕苗操作后1d的死亡率。结果表明，投喂鲜活轮虫或枝角类，真鲷稚、幼鱼的成活率最高、生长快、捕苗操作后的死亡率低；投喂冰冻的枝角类，真鲷稚、幼鱼的成活率也较高，捕苗操作后的死亡率也很低，但生长较慢；采用未经营养强化的卤虫无节幼体作饵料，稚、幼鱼生长快，但成活率最低，且捕苗操作后的死亡率最高。投喂经乳化鱼肝油强化的卤虫无节幼体，则稚、幼鱼的成活率较高，捕苗操作后的死亡率也较低。投喂鱼糜，鱼苗成活率较低。可以认为，枝角类和轮虫是真鲷稚、幼鱼的优质饵料。
Growth and survlval rates of artlflclally-produced Juveniles and young fishes of red sea bream Pagrosomus major feeding on rotifer, living cladocera, cladocera preserved in freezer,artemia nauplii, enriched artemia nauplii or pieces of fishes meat for 12d are investlgated.Experimental results show that the survival rates and the growth rates of the Juveniles and young flshes feeding on living cladocera or rotifer are higher, and the death rates ln a day after being captured are lower. When the juveniles and young fishes are feeding on cladocera preserved in freezer, the survival rates are higher and the death rates in a day after being captured are lower, but the growth rates are lower. The juveniles and young fishes feeding on artemla nauplii grow fastest, but the survlval rates are lower and the death rates in a day after being captured are higher, However, feeding on enriched artemia nauplii, the survival rates of the Juveniles and young fishes increase and the death rates in a day after being captured decrease. It' s clear that the lively cladocera and rotifer are good foods for red sea bream Juveniles and young fishes.
出处
《台湾海峡》
CAS
CSCD
1998年第A12期29-33,共5页
Journal of Oceanography In Taiwan Strait
