三个地理品系萼花臂尾轮虫生活史特征的比较  

The Comparative Study on the Characteristics of the Life History of Three Brachionus calyciflorus Strains

作　　者：冯粒克[1] 席贻龙[1] 

机构地区：[1]安徽师范大学生命科学学院"重要生物资源的保护和利用研究"安徽省重点实验室,芜湖241000

出　　处：《动物学杂志》2004年第1期12-15,共4页Chinese Journal of Zoology

基　　金：安徽省自然科学基金 (No.0 0 0 42 416);安徽省教育厅自然科研基金 (No .2 0 0 0j10 84);安徽师范大学专项科研基金;"重要生物资源的保护和利用研究"安徽省重点实验室专项基金;安徽省优秀青年基金资助

摘　　要：应用单个体培养方法 ,以浓度为 4 0× 10 6 cells ml的斜生栅藻 (Scenedesmusobliquus)为食物 ,在 30℃下 ,对采自广州、芜湖和青岛等地的萼花臂尾轮虫的生活史特征进行了比较研究。结果发现 ,三个地理品系的萼花臂尾轮虫除生殖前期历时无显著差异外 ,其生殖期历时、生殖后期历时、平均寿命和产卵量等均存在显著的差异。轮虫种群的内禀增长率、周限增长率和净生殖率均以芜湖品系最大 ,广州品系最小。这表明若要在 30℃下进行萼花臂尾轮虫的规模化生产 。The characteristics of life history of three strains of Brachionus calycifloru s were compared by means of individual culture method. Specimens were collecte d respectively from Guangzhou, Wuhu and Qingdao, and fed with the algae Scened esmus obliquus at the concentration of 4 0×10 6 cells/ml as the rotifers' f ood, at 30℃. The results show that there are significant difference in producti ve period, post\|productive period, mean lifespan and number of eggs of the thre e strains of Brachionus calyciflorus, but no difference in the pre\|reproduc tive period.Among the three rotifer strains,the intrinsic rate of increase ( r m), finite rate of increase (λ) and net reproduction rate (R o) of Wuhu strain are the largest, a nd those of the Guangzhou strain are the least. The results indicate that the Wu hu strain is the optimal strain for industrial cultivation at 30℃.

关 键 词：萼花臂尾轮虫 地理品系 生活史特征 单个体培养 

分 类 号：Q959[生物学—动物学]