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Effect of food level on body size and egg size in a growing population of the rotifer brachionus patulus muller



Effect of food level on body size and egg size in a growing population of the rotifer brachionus patulus muller



Archiv fuer Hydrobiologie 111(2): 245-254



Laboratory populations of the rotifer Brachionus patulus Muller were grown at different food (Chlorella) levels-0.5, 1.0, 2.0, and 4 .times. 106/ml. The body size (Lorica area) of individual rotifers and the size of eggs borne by them were measured at log- and K-phases of population growth. Both body size and egg size were larger at higher food levels. The body size of rotifers during the log-phase was larger than during the K-phase, but eggs produced during the latter were larger than those produced during the log-phase. A significantly positive correlation was also observed between the adult body size and the size of egg produced.

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Accession: 005239832

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