Ecology of mixotrophic algae in Lake Constance
In Lake Constance the share of mixotrophic algae in phytoplankton biomass has been increasing during the last years. Apparently mixotrophy (a combination of phototrophic and heterotrophic nutrition) is a successful strategy of gaining required nutrients. This study will place emphasis on the ecology of the mixotrophs. We will monitor the annual changes in mixotrophy in Lake Constance by applying inter alia the method of CARD-FISH and perform different short-term grazing experiments under varying external conditions.

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