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引用本文:王金秋,桑月婵,堵南山,赖伟.不同培养条件下多刺裸腹溞的生殖和种群增长参数.湖泊科学,1999,11(2):141-144. DOI:10.18307/1999.0209
WANG Jin-qiu,Sang Yue-chan,Du Nan-shan,Lai Wei.Production and Growth Parameter for Moina macrocopa under Different Culture Conditions. J. Lake Sci.1999,11(2):141-144. DOI:10.18307/1999.0209
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不同培养条件下多刺裸腹溞的生殖和种群增长参数
王金秋1, 桑月婵2, 堵南山2, 赖伟2
1.复旦大学环境和资源生物系, 上海 200433;2.华东师范大学生物学系, 上海 200062
摘要:
于 1996年在实验室对多刺探腹溞(Mbina macrocopa)种群的增长率及相关生态学参数进行了研究.结果表明,3个温度梯度(24、28和32℃)和3个面包酵母(Saccharomyces cerevisi-ae)密度(0.25、2 5和25 x 106cell.mL-1下,以28℃时内禀增长力(rm)最高;28℃时,面包酵母的投喂密度为25×106cell.mL-1时,其rm最大.温度28℃,面包酵母密度为25×106cell.mL-1时,该溞的繁殖前期最短,繁殖期和寿命均最长,并且怀卵量(每窝产仔数)最大.该溞的种群密度和瞬时增长率分别在接种后第7d和第3-4d达高峰.该搔批量培养时采收时间以第5d为宜.
关键词:  多刺裸腹溞  面包酵母  温度  内禀增长力  瞬时增长率
DOI:10.18307/1999.0209
分类号:
基金项目:中国博士后科学基金和国家自然科学基金(39770579)联合资助项目
Production and Growth Parameter for Moina macrocopa under Different Culture Conditions
WANG Jin-qiu1, Sang Yue-chan2, Du Nan-shan2, Lai Wei2
1.Deportment of Environmental and Resources Biology, Fudan University, Shanghai 200433;2.Department of Biology, East China Normal Unviersity, Shanghai 200062
Abstract:
The population growth rate and ecological paramenter for Moina macrocopa under different three temperature (24, 28 and 32℃) and densities of Sacchromyces cerevisiae (0. 25 X 106cell. mL-1, 2.5 X 10 cell· mL-1 and 25 X 106 cell· mL-1) were obtained. Results indicated that the in-trinsic increase rate (rm) reached 1.048 d-1 under temperature of 28℃, higher than 0.76d -1(24), and 1. 010 d-1(32℃). Further comparisons showed that under culture conditions that density of S. cerevisiae of 2. 5 × 106cell · mL-1 and a temperature of 28℃, the rm was maxi-mum, the productive period and life-span, of M. macrocopa longest, and the numbers of conceiv-ing eggs highest. Hence, the conditions of culture density of S. cerevisiae of 2.5× 106cell·mL-1 and a temperature of 28℃ were optimal for M. macrocopa production. Population accumulative culture experiments indicated a peak of population density of M. macrocopa was observed at the 7th day after inoculation. The peak instantaneous rate increase of population appeared at the 3rd to 4th day, so that a collection at the 5th day would be favored.
Key words:  Moina macrocopa  Sacchromyces cerevisiae  intrinsic increase rate  instantaneous increase rate  temperature
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