Microbial Ecology of Lake Plußsee pp 251-269 | Cite as
Nanoflagellate and Ciliate Grazing on Bacteria
Abstract
In the early 1950s, Ohle (1952) reported the algal photoautotrophic refixation of CO2 released by bacteria during decomposition of organic matter in the epilimnion. He summarized his observations by the term “short-circuit cycle of organic matter in the epilimnion” (“kurzgeschlossener Stoffkreislauf des Epilimnions”). In 1962, he showed that the Plußsee’s mean depth of productivity was 5 m and that 70–93% of primary production was utilized within that compartment of the pelagial. This means that the carbon passes through the “short-circuit” about 10 times in the upper layer of the water column, theoretically. These early investigations pointed out the nonlinear turnover of organic matter, but there was still little information about the organisms involved.
Keywords
Bacterial Production Grazing Rate Microbial Loop Spring Phytoplankton Bloom Heterotrophic NanoflagellatesPreview
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