赤潮藻塔玛亚历山大藻对褶皱臂尾轮虫生活史特征的影响

采用生命表方法，研究了不同浓度塔玛亚历山大藻对褶皱臂尾轮虫生命周期中各发育阶段历时以及种群增长参数的影响．结果表明：塔玛亚历山大藻对褶皱臂尾轮虫的生长发育有明显影响，使轮虫的繁殖前期和世代时间延长，繁殖期、繁殖后期和平均寿命缩短，产卵量和繁殖率降低．轮虫的净生殖率和内禀增长率均低于对照．不同藻浓度下轮虫能够维持一定的种群增长．

Effects of red tide microalgae Alexandrium tamarense on the life history of rotifer Brachionus plicatilis

In this paper,life-table method was used to study the effects of different concentration Alexandrium tamarense on the durations of different development stages of Brachionus plicatilis and the characters of its population growth.The results showed that A.tamarense had significant effects on the growth and development of B.plicatilis via prolonging the durations of the rotifer's pre-reproduction and generation succession,shortening the durations of its reproduction and post-reproduction and its mean lifespan,and reducing its laying eggs and fecundity.The net reproduction rate and intrinsic increasing rate of B.plicatilis decreased significantly,in comparison with those of the control.B.plicatilis could maintain definite population increase at the presence of different concentration A.tamarense.