Search for: [Abstract = "A description is given of the method used for field experiments which made it possible to examine the food composition and feeding rate of a whole natural zooplankton community in situ. The principle of this method is comparison of the abundance of nannoplankton, bacteriaplankton and detritus in lake water with active zooplankton and in lake water with anaesthetized zooplankton, after exposing this water for a definite period in transparent organic glass apparatus. Initial results are given to illustrate this method."]

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