[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.
Xie
Zhi-Hao
ZH
Marine Ecology Laboratory, Ocean University of China, Qingdao 266003, Shandong, China. xiezhihao@nbu.edu.cn
Xiao
Huh
H
Cai
Heng-Jiang
HJ
Wang
Ren-Jun
RJ
Tang
Xue-Xi
XX
D000818:Animals; D004141:Dinoflagellida / Q000254:growth & development*; D056890:Eukaryota / Q000254:growth & development; D008018:Life Cycle Stages / Q000502:physiology*; D010839:Phytoplankton / Q000254:growth & development*; D012098:Reproduction / Q000502:physiology; D012403:Rotifera / Q000254:growth & development*; D013997:Time Factors