两品系褶皱臂尾轮虫种群增长及投喂河蟹苗效果的研究  

Population Growth of two Strains of Rotifer Brachionus plicatilis and their Beneficial Results as Live Food for Crab Larvae

作　　者：窦亚秋[1] 殷旭旺[2] 朱知龙[2] 赵文[2] 

机构地区：[1]中国海洋大学水产学院,山东青岛266003 [2]大连水产学院辽宁省省级高校水生生物学重点实验室,辽宁大连116023

出　　处：《水产科学》2005年第9期11-13,共3页Fisheries Science

基　　金：辽宁省自然科学基金资助项目(002119;0022099)

摘　　要：采用实验生态学方法对两品系褶皱臂尾轮虫(内蒙品系和盘锦品系)的种群增长和投喂蟹苗的效果进行了比较研究。结果表明,两品系轮虫的种群增长差异不显著,两者平均瞬时增长率分别为0.42 d-1和0.40 d-1。在投喂蟹苗的效果方面,褶皱臂尾轮虫内蒙品系好于盘锦品系。用内蒙品系轮虫投喂的蟹苗,幼体变态至大眼幼体的存活率为71.65%,用盘锦品系轮虫投喂的蟹苗,变态至大眼幼体的存活率为62.50%。Population growth of two stains （Inner- Mongolia strain and Panjin strain） of rotifer Brachionus plicatilis were studied and the rotifer were fed to Chinese mitten- handed crab （Eriocheir sinensis ） larvae as live food. The resuits showed that there was no significant difference in population growth of the two strains. Average instantaneous increase rates of the two strains were 0.42 d^-1 and 0.40 d^-1, respectively. In aspect of beneficial results, Inner- Mongolia strain was better than Panjin strain. The survival rates from zoea to megalopa of the crab fed Inner - mongolia strain and Panjin strain were 71.65% and 62.50%, respectively.

关 键 词：褶皱臂尾轮虫 种群增长 蟹苗 变态率 

分 类 号：S968.25[农业科学—水产养殖]