Changes in size,biomass and production of Euchlanis dilatata lucksiana Hauer during its lifespan |
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Authors: | Ejsmont-Karabin J. Siewertsen K. Gulati R. D. |
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Affiliation: | (1) Polish Academy of Sciences, Institute of Ecology, Hydrobiological Station, ul. Lena 13, 11-730 Miko«jki, Poland;(2) Vijverhof Laboratory, Limnological Institute, Rijksstraatweg 6, 3631 AC Nieuwersluis, The Netherlands |
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Abstract: | Changes in body length, carbon content and somatic and reproductive partitioning of assimilated carbon during the lifespan of Euchlanis dilatata lucksiana Hauer are described. The greatest increase in animal size was observed within the first two days of its lifespan, the biomass (expressed in carbon units) of females increased sharply between 1 and 22 h after hatching due to high somatic production, and between 53 and 65 h after hatching due to high reproduction rate. In her lifetime the Euchlanis female used only about 1% of the assimilated carbon for somatic production and as much as 16% of this carbon for reproduction. The possible reasons for, and adaptive advantages of, this phenomenon are discussed. |
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Keywords: | Euchlanis body length carbon content assimilation reproduction somatic production |
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