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The World of Protozoa, Rotifera, Nematoda and Oligochaeta

Ref ID : 1424

M. Yufera and N. Navarro; Population growth dynamics of the rotifer Brachionus plicatilis cultured in non-limiting food condition. Hydrobiologia 313/314:399-405, 1995

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Population growth parameters in batch culture of Brachionus pilcatilis under a continuous supply of freeze-dried microalgae powder have been determined. Two B. plicatilis strains (L- and S-types) and four microalgae species (Nannochloropsis oculata, Nannochloropsis gaditana, Nannochloris oculata and Tetraselmis suecica) have been tested, establishing the dynamics of growth at different daily food rations. Cultures showed a short lag phase, an exponential growth phase, a long post-exponential growth phase and long decline with episodic increases. In both rotifer strains, the best growth was obtained with Nannochloropsis oculata and the poorest with Nannochloris oculata.