中国海洋湖沼学报（英文版）2009，Vol.27Issue(3)：473-479,7.DOI:10.1007/s00343-009-9208-x
Ingestion of Brachionus plicatilis under different microalgae conditions
Ingestion of Brachionus plicatilis under different microalgae conditions
摘要
Abstract
The effects of four microalgae, Chlorella vulgaris, Platymonas helgolandicavar, Isochrysis galbana, and Nitzschia closterium on the grazing and filtering rates of the marine rotifer, Brachionus plicatilis, were evaluated under laboratory conditions. The grazing rates in separate cultures of the four microalga were as follows: C. vulgaris > P. helgolandicavar > I. galbana > N. closterium. However, the filtering rates occurred in the following order: P. helgolandicavar > N. closterium > C. vulgaris > I. galbana. A mixed diets experiment revealed that P. helgolandicavar was the preferred diet of B. plicatilis. In addition, the grazing rate of B. plicatilis increased gradually as the density of the microalgae increased, until concentrations of 2.5×106 cells mL-1 for C. vulgaris and 1.5×106 cells mL-1 for I. galbana were obtained. Furthermore, the filtering rate increased slightly when the density of the microalgae was low, after which it declined as the microalgal density increased. The grazing rates of B. plicatilis were as follows during the different growth phases: stationary phase > exponential phase > lag phase > decline phase. Additionally, the filtering rates during the growth phases were: exponential phase > lag phase > stationary phase > decline phase. The results of this study provide foundational information that can be used to explore the optimal culture conditions for rotifers and to promote the development of aquaculture.关键词
Brachionus plicatilis/ microalgae/ grazing rate/ filtering rate/ selectivityKey words
Brachionus plicatilis/ microalgae/ grazing rate/ filtering rate/ selectivity引用本文复制引用
ZHOU Wenli,TANG Xuexi,QIAO Xiuying,WANG You,WANG Renjun,FENG Lei..Ingestion of Brachionus plicatilis under different microalgae conditions[J].中国海洋湖沼学报（英文版）,2009,27(3):473-479,7.基金项目
Supported by Natural Science Foundation of China (No. 30270258) and Program for New Century Excellent Talents in University (NCET-05-0597) （No. 30270258）
