Elements of Energy Balance of Brachionus angularis
The ecological success of an organism is largely dependent on the characteristics of its metabolism. All metabolic activities have to adapt to the conditions a species experiences in its environment, or the species cannot survive. For energy metabolism, this is especially valid for the food conditions as an environmental factor. From studies of the energy balance, therefore, it is possible to deduce the food demands an organism makes on its habitat. Different species in the same habitat will have different requirements (qualitative and/or quantitative), thereby avoiding competition and using all available resources. Many publications deal with the qualitative aspects of this competition, e.g., the use of different sized particles as food in zooplankton filtrators (e.g., Gliwicz 1969; Hall et al. 1976; Bogdan and Gilbert 1984). However, also the quantity of food is characteristic of a niche. For this reason, the reaction of the energy balance to different food inputs should be studied. Energy is best represented by organic carbon as the basic element of energy-rich molecules.
KeywordsBody Size Food Concentration Ingestion Rate Specific Growth Rate Swimming Speed
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