饥饿对中国龙虾叶状幼体Ⅰ期发育、摄食及存活的影响

陈昌生; 陈政强; 胡家才; 吴仲庆; 陈浩良

饥饿对中国龙虾叶状幼体Ⅰ期发育、摄食及存活的影响

集美大学水产生物技术研究所养殖系, 福建厦门361021

基金项目: 福建省自然科学基金资助项目(B0010031)

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出版历程
- 收稿日期: 1999-02-13
- 修回日期: 2000-02-29

Influences of starvation on the development, ingestion and survival of Panulirus stimpsoni phyllosoma(Ⅰ)

Institute Fishery Biotechnology, Department of Aquaculture of Jimei University, Xiamen 361021, China

摘要

摘要: 中国龙虾叶状幼体Ⅰ期在饥饿条件下的生长发育、变态、存活的研究结果表明:初孵叶状幼体耐饥饿能力较强,完全饥饿144h,成活率为100%,饥饿192～216h,成活率为76%～68%.由生长和变态来看,推迟24～36h投饵,对叶状幼体Ⅰ期的生长没有明显影响.在摄食饵料方面,初孵幼体饥饿144h,仍然有55%的幼体具有摄食能力.饥饿24～120h的初期叶状幼体摄食卤虫幼体的大小(体长为349.5～604.9μm)可达到自身体长的1/2～1/3.当叶状幼体连续摄饵时间达60h,体内储存一定的营养后,即使不再喂食,幼体也能变态,但变态率较低.由间隔投饵效果来看,每隔8,16,24h投饵,幼体的发育变态差异不大.这些研究结果对开展龙虾基础生物学与人工育苗技术研究,提高育苗成活率将有一定的参考意义.
- 中国龙虾 /
- 叶状幼体 /
- 饥饿 /
- 摄食 /
- 变态
Abstract: The results of the study on the growth,development,ingestion and survival of P.stimpsoni phyllosoma (Ⅰ)under the condition of starvation show that they have a high ability in bearing starvation.After 144 h of complete star vation,the survival rate of phyllosoma is 100%,and 55% of phyllosoma could feed still.After 192~216 h of starvation,although the survival rate of the phyllosoma is 76%~68%,but no phyllosoma could catch food organism any more.Delaying the feeding time about 24~36 h,there is no obvious influence on the growth of phyllosoma.The early phyllosoma which were starved for 1~5 d can feed the Artemia sp.nauplius,whose body length is 1/2~1/3 body length of phyllosoma,this phenomenon is not often seen in crustacean phyllosoma.When the phyllosoma store up more enough of nutrition,after had been fed about 60 h,their metamophosis process could remained normally,even though without feeding anythings.According to the effects of intermit tent feeding,it shows that there are no obvious influence on the metamorphosis of phyllosoma.which were feeding after an interval of 8,16,24 h.The results of these observations may provide some referential meaning on the study of lobster's basic biology,artificial breeding and improving the survival rate of artificial breeding.
- P.stimpsoni /
- phyllosoma Ⅰ /
- starvation /
- ingestion /
- metamorphosis

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