Deutsch
 
Hilfe Datenschutzhinweis Impressum
  DetailsucheBrowse

Datensatz

DATENSATZ AKTIONENEXPORT
  Zooplankton-mediated changes of bacterial community structure

Jürgens, K., Arndt, H., & Rothhaupt, K. O. (1994). Zooplankton-mediated changes of bacterial community structure. Microbial Ecology, 27(1), 27-42.

Item is

Dateien

einblenden: Dateien
ausblenden: Dateien
:
Jürgens_1994.pdf (Verlagsversion), 950KB
 
Datei-Permalink:
-
Name:
Jürgens_1994.pdf
Beschreibung:
-
OA-Status:
Sichtbarkeit:
Eingeschränkt (Max Planck Institute for Evolutionary Biology, MPLM; )
MIME-Typ / Prüfsumme:
application/pdf
Technische Metadaten:
Copyright Datum:
-
Copyright Info:
-
Lizenz:
-

Externe Referenzen

einblenden:

Urheber

einblenden:
ausblenden:
 Urheber:
Jürgens, K.1, Autor           
Arndt, H.1, Autor           
Rothhaupt, K. O.1, Autor           
Affiliations:
1Department Ecophysiology, Max Planck Institute for Limnology, Max Planck Institute for Evolutionary Biology, Max Planck Society, ou_976547              

Inhalt

einblenden:
ausblenden:
Schlagwörter: -
 Zusammenfassung: Enclosure experiments in the mesotrophic Schohsee in northern Germany were designed to study the impact of metazooplankton on components of the microbial food web (bacteria, flagellates, ciliates). Zooplankton was manipulated in 500-liter epilimnetic mesocosms so that either Daphnia or copepods were dominating, or metazooplankton was virtually absent. The bacterial community responded immediately to changes in zooplankton composition. Biomass, productivity, and especially the morphology of the bacteria changed drastically in the different treatments. Cascading predation effects on the bacterioplankton were transmitted mainly by phagotrophic protozoans which had changed in species composition and biomass. When Daphnia dominated, protozoans were largely suppressed and the original morphological structure of the bacteria (mainly small rods and cocci) remained throughout the experiment. Dominance of copepods or the absence of metazoan predators resulted in a mass appearance of bacterivorous protists (flagellates and ciliates). They promoted a fast decline of bacterial abundance and a shift to the predominance of morphologically inedible forms, mainly long filaments. After 3 days they formed 80-90% of the bacterial biomass. The results indicate that metazooplankton predation on phagotrophic protozoans is a key mechanism for the regulation of bacterioplankton density and community structure.

Details

einblenden:
ausblenden:
Sprache(n): eng - English
 Datum: 1994-01
 Publikationsstatus: Erschienen
 Seiten: -
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: -
 Identifikatoren: eDoc: 214941
Anderer: 1446/S 36672
 Art des Abschluß: -

Veranstaltung

einblenden:

Entscheidung

einblenden:

Projektinformation

einblenden:

Quelle 1

einblenden:
ausblenden:
Titel: Microbial Ecology
  Alternativer Titel : Microb Ecol
Genre der Quelle: Zeitschrift
 Urheber:
Affiliations:
Ort, Verlag, Ausgabe: -
Seiten: - Band / Heft: 27 (1) Artikelnummer: - Start- / Endseite: 27 - 42 Identifikator: ISSN: 0095-3628