两种异养性鞭毛虫实验种群数量动态的比较研究
COMPARATIVE STUDIES ON QUANTITATIVE DYNAMICS IN TWO EXPERIMENTAL POPULATIONS OF HETEROTROPHIC FLAGELLATES
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摘要: 1999年4-8月从武昌东湖PFU样本中分离纯化了两种异养性鞭毛虫,对四种不同浓度Ceraphyl培养液中的种群增长进行了比较研究.结果表明这两种异养性鞭毛虫种群的数量动态显着不同,聚滴虫在四种浓度Ceraphyl培养液中均呈逻辑斯谛增长;而舞行波豆虫在四种浓度Ceraphyl培养液中的增长曲线均为抛物线.拟合组建了种群增长方程,并论证了方程可信度及其参数的生态学意义.
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关键词:
- 实验种群 /
- 增长曲线 /
- Ceraphyl培养液
Abstract: In this paper, the quantitative dynamics of two heterotrophic flagellat populations, M. socialis and B. saltans which were separated from a PFU sample of Lake Donghu and cultured in Ceraphyl media of various concentration, is studied comparatively. The result shows that the quantitative dynamics of each heterotrophic flagellate population differs significantly from the other. The population growth curves of M. socialis coincide with the logistic curve, but the population growth curves of B. saltans are parabolic. The population growth equations for the two species are established.-
Keywords:
- Experimental population /
- Growth curve /
- Ceraphyl medium
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