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  Chemostats used to model the microbial food web: evidence for the feedback effect of herbivorous metazoans

Arndt, H., Güde, H., Macek, M., & Rothhaupt, K. O. (1992). Chemostats used to model the microbial food web: evidence for the feedback effect of herbivorous metazoans.

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Item Permalink: https://hdl.handle.net/11858/00-001M-0000-000F-E468-8 Version Permalink: https://hdl.handle.net/11858/00-001M-0000-000F-E469-6
Genre: Conference Paper

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arndt_1992.pdf (Any fulltext), 307KB
 
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 Creators:
Arndt, Hartmut1, Author           
Güde, Hans, Author
Macek, Miroslav, Author
Rothhaupt, Karl Otto1, Author           
Affiliations:
1Department Ecophysiology, Max Planck Institute for Limnology, Max Planck Institute for Evolutionary Biology, Max Planck Society, ou_976547              

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 Abstract: Five successive chemostats of algae (Monoraphidium )/bacteria, a heterotrophic flagellate (Spumella ), and a rotifer (Brachionus ) were combined according to a trophic cascade in order to test the hypothesis that the main flux of DOC from phytoplankton to bacteria is via egestion and excretion by herbivores rather than via exudated DOC from intact algae. Laboratory experiments revealed that bacteria and protozoans remained at low concentrations and metabolic activities until the algae were damaged by rotifer grazing. In the last chemostat where rotifers had been removed microbes grew up even more indicating both fuelling and grazing of microbes by rotifers. Evidence is presented that grazing activity of herbivores should be considered as an important source of microbial nutrition.

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Language(s): eng - English
 Dates: 1992
 Publication Status: Issued
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: eDoc: 285171
Other: 1354/S 36322
 Degree: -

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Title: Microbial ecology of pelagic environments
Place of Event: Helsingør, Denmark
Start-/End Date: 1991-08-18 - 1991-08-23

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Source 1

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Title: Microbial ecology of pelagic environments. Proceedings of the Fifth International Workshop on the Measurement of Microbial Activities in the Carbon Cycle in Aquatic Environments
Source Genre: Issue
 Creator(s):
Bjørnsen, Peter Koefoed, Editor
Riemann, Bo, Editor
Affiliations:
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Publ. Info: -
Pages: VII, 278 S. Volume / Issue: - Sequence Number: - Start / End Page: 187 - 194 Identifier: ISBN: 3-510-47038-9

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Title: Archiv für Hydrobiologie Beiheft/Ergebnisse der Limnologie
  Alternative Title : Arch. Hydrobiol. Beih. Ergebn. Limnol.
Source Genre: Journal
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Publ. Info: -
Pages: VII, 278 S. Volume / Issue: 37 Sequence Number: - Start / End Page: - Identifier: ISSN: 0071-1128