摘要
于２５℃时，观察了多刺探腹溞ＭｏｉｎａｍａｃｒｏｃｏｐａＳｔｒａｕｓ在盐度为２‰、３‰、４‰、 ６‰、８‰、１０‰６个浓度梯度下的生殖与生存．试验表明，多刺裸腹溞的寿命随盐度升高而缩短，在 盐度２‰－４‰范围内，每溞的平均产仔量、产仔总量及种群的内禀增长率（ｒ_ｍ）无显著差异，其最 适盐度为２‰－４‰，６‰，为其生殖的盐度上限，经过短期的海水驯化，多刺裸腹溞的生殖和生存盐 度上限可达８‰．
The reproduction and survival of the Moina macrocopa Straus under 25℃ and six salinities of seawater (2‰, 3‰, 4‰, 6‰, 8‰ and 10‰ ) has been studied. The experiment results show the total life span on a decrescendo basis varies with the increasing of salinity. Mean number of young produced per female and total number of young produced and the intrinsic increase rate (r_m) haven't significant differences (2‰-4‰). The results of the experiments also show that the appropriate salinity is 2‰-4‰ while lethal upper salinity limit of reproduction is 6‰. Finally, it is found that after short term training, the lethal upper salinity limit of reproduction and survival of Moina macrocoopa may reach 8‰.
出处
《湖泊科学》
EI
CAS
CSCD
1999年第1期57-62,共6页
Journal of Lake Sciences
关键词
多刺裸腹溞
盐度
内禀增长率
驯化
Moina macrocopa, salinity, intrinsic rate of increase, training
