利氏才女虫幼虫对轮虫和河蟹溞状幼体的影响  

Effects of Polydora Ligni Larva on Brachionus policatilis and Zoea of Eriocheir sinensis

作　　者：张树林[1] 李晓东[2] 刘青[2] 

机构地区：[1]天津农学院水产科学系,天津300384 [2]大连水产学院养殖系,辽宁大连116023

出　　处：《水产科学》2002年第1期14-16,共3页Fisheries Science

摘　　要：试验结果表明 ,利氏才女虫 (Polydoraligni)幼虫对褶皱臂尾轮虫 (Brachionusplicatilis)的存活有严重危害 ,其密度与轮虫的存活率负相关 ;利氏才女虫幼虫对中华绒螯蟹 (Eriocheirsinensis河蟹 )Ⅰ期和Ⅱ期状幼体 (Z1和Z2 )的变态也存在严重危害 ,其密度与Z1和Z2 的变态率亦呈负相关 。The Effects of Polydora ligni larvae on Brachionus policatilis and zoea of Eriochei sinensis were studied The results showed that: P ligni larvae did raher great harm to survival rate of B policatilis Density of P ligni was negative correlative with survival rate of B policatilis P ligni larvae did great harm to metamorphosis rate of Ⅰ and Ⅱ zoea of crab Density of P ligni was also negative correlative with metamorphosis rate of Ⅰ and Ⅱ zoea of crab The mechanism of P ligni larvae doing harm to B policatilis and Ⅰ?Ⅱ zoea of crab was also discussed

关 键 词：利氏才女虫 幼虫 褶皱臂尾轮虫 河蟹蚤状幼体 存活率 变态率 危害 

分 类 号：S947.9[农业科学—水产养殖]