Characteristics in life history of Brachionus forcatus and B. caudatus: a comparative study

By the method of individual culture and with 3.0 x 10(6) cells ml(-1) of Scenedesmus obliquus as the food, a comparative study was made on the characteristics in life history of Brachionus forcatus and B. caudatus at 18 degrees C, 23 degrees C, 28 degrees C and 33 degrees C. The results showed that...

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Bibliographic Details
Published inYing yong sheng tai xue bao Vol. 19; no. 5; p. 1104
Main Authors Tao, Li-Xiang, Xi, Yi-Long, Hu, Cun-Bing
Format Journal Article
LanguageChinese
Published China 01.05.2008
Subjects
Animals
Life Cycle Stages
Life Expectancy
Reproduction - physiology
Rotifera - growth & development
Rotifera - physiology
Species Specificity
Temperature
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Summary:By the method of individual culture and with 3.0 x 10(6) cells ml(-1) of Scenedesmus obliquus as the food, a comparative study was made on the characteristics in life history of Brachionus forcatus and B. caudatus at 18 degrees C, 23 degrees C, 28 degrees C and 33 degrees C. The results showed that at 18 degrees C and 23 degrees C, both the reproductive stage and the mean lifespan of B. caudatus were longer than those of B. forcatus, and the number of eggs produced by B. caudatus in its whole life was larger than that by B. forcatus. At 28 degrees C , there were no significant differences between B. forcatus and B. caudatus in the durations of their main development stages, mean lifespan, and the number of eggs produced. At 33 degrees C, the reproductive and post-reproductive stages and the mean lifespan of B. forcatus were longer than those of B. caudatus, and the number of eggs produced by B. forcatus in its whole life was larger than that by B. caudatus. At 18 degrees C, the life expectancy at hatching, ne
ISSN:1001-9332