AbstractThis study addresses competition between the Paramecium bursaria and zooch lorella - endosymbiosis and the infusoria Paramecium caudatum in a closed aquatic system. The system is a natural model of a simple biotic cycle. P. bursaria consumes glucose and oxygen released by its zoochlorella and releases nitrogenous compounds and carbon dioxide necessary for algal photosynthesis. P. caudatum was fed on bacteria. It was shown that the infusoria P. bursaria united in one cycle with Chlorella had a higher competitive ability than P. caudatum. With any initial percentage of the infusoria in the mixed culture, the end portion of P. bursaria reached 90 – 99%, which was significantly higher than the end potion of the P. caudatum population. It is assumed that the sustenance expenditures of P. caudatum were greater than those of the endosymbiotic paramecium, i.e. the closing of the components into a biotic cycle leads to a decrease in sustenance expenditures.
Competition of the natural and manmade biotic cycles in the closed aquatic system
Advances in Space Research ; 31 , 7 ; 1757-1761
2003-01-01
5 pages
Article (Journal)
Electronic Resource
English
Competition of the Natural and Manmade Biotic Cycles in the Closed Aquatic System
British Library Conference Proceedings | 2003
|Competition of the natural and manmade biotic cycles in the closed aquatic system
Online Contents | 2003
|British Library Conference Proceedings | 2003
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