摘要
中国龙虾叶状幼体孵出后 1～ 2h就开始摄食 ,其适宜的开口饵料为卤虫无节幼体。叶状幼体Ⅱ、Ⅲ、Ⅳ期摄食卤虫无节幼体后的变态率分别为 80 %、40 %和 32 .5 %。卤虫幼体和贻贝卵巢混合投喂 ,可提高叶状幼体的存活率。叶状幼体对不同饵料具有选择性 ,昼夜均可摄食 ,没有明显的摄食节律性 ;光照和黑暗对叶状幼体的摄食和存活没有影响。在适宜的卤虫无节幼体密度下 ,叶状幼体 5～ 9min就可饱食 ,然后经过 45～ 90min消化完毕 ;初孵叶状幼体对不同大小的卤虫无节幼体 (349.5～ 6 0 4.9μm)的摄食没有明显差异。本试验可为开展中国龙虾的人工育苗积累资料。
The phyllosoma of Panulirus stimpsoni begin to feed about 1-2 hours after hatching, and suitable diet of phyllosoma is Artimia salina nauplii. During phyllosoma stageⅡ?Ⅲ and Ⅳ they eat A.salina nauplii. Its metamorphosis rate could reach 80%,40% and 32.5% respectively. Phyllosoma have choice on different diets , and they can feed all day, and they have no rhythm of feeding. Light and darkness have no effect on their feeding and survival. In suitable density of A. salina nauplii, phyllosoma(Ⅰ) can be full in 5-9minutes and digest in 45-90 minutes. The feeding of phyllosoma on different sizes of A. salina nauplii (349.5-604.9μm)makes no obvious difference. This study can accumulate materials for the artificial culture of Panulirus stimpsoni phyllosoma.
出处
《水产学报》
CAS
CSCD
北大核心
2001年第4期330-335,共6页
Journal of Fisheries of China
基金
福建省自然科学基金资助项目 (B0 0 10 0 31)
关键词
中国龙虾
叶状幼体
摄食
Panulirus stimpsoni
phyllosoma
feeding
