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采用实验生态学方法对两品系褶皱臂尾轮虫(内蒙品系和盘锦品系)的种群增长和投喂蟹苗的效果进行了比较研究。结果表明,两品系轮虫的种群增长差异不显著,两者平均瞬时增长率分别为0.42 d-1和0.40 d-1。在投喂蟹苗的效果方面,褶皱臂尾轮虫内蒙品系好于盘锦品系。用内蒙品系轮虫投喂的蟹苗,幼体变态至大眼幼体的存活率为71.65%,用盘锦品系轮虫投喂的蟹苗,变态至大眼幼体的存活率为62.50%。
A comparative experimental study was conducted on the population growth and the effects of feeding crabs on two strains of Brachionus pardus (Inner Mongolia and Panjin) using experimental ecology. The results showed that there was no significant difference in population growth between the two strains of rotifers, the average instantaneous growth rates were 0.42 d-1 and 0.40 d-1, respectively. In the effect of feeding crabs, Brachionus rotundus Inner Mongolia strain is better than Panjin strain. Survival rate of the larvae fed with rotifer from Inner Mongolia was 71.65%. The survival rate of the metamorphosis to the larva was 62.50%.