Logo des Repositoriums
Zur Startseite
  • English
  • Deutsch
Anmelden
  1. Startseite
  2. SuUB
  3. Dissertationen
  4. Diversity and function of microbial communities in the Arctic Ocean
 
Zitierlink URN
https://nbn-resolving.de/urn:nbn:de:gbv:46-00106760-10

Diversity and function of microbial communities in the Arctic Ocean

Veröffentlichungsdatum
2018-09-14
Autoren
Rapp, Josephine Z.  
Betreuer
Bienhold, Christina  
Gutachter
Amann, Rudolf  
Zusammenfassung
The Arctic Ocean ecosystem is rapidly changing in response to climate warming. The ongoing decline of its sea-ice cover has raised many questions as to the ecological consequences on biodiversity, primary productivity, and the biological carbon pump. The diversity and function of bacterial communities in the Arctic Ocean has been little explored, despite their often important role in biogeochemical cycling. One objective of this thesis was therefore to improve the current knowledge of microbial community diversity in the most understudied region of the Arctic Ocean, the deep central Eurasian basin. As sea-ice reduction is altering primary productivity and biological transport processes from the surface ocean to the deep sea, another focus of this thesis was the identification of bacterial groups associated to freshly formed, sinking and deposited particulate organic matter. Finally, the underlying genomic features that deep-sea surface sediment bacteria use for carbon turnover were analyzed, as the degradation of organic matter by heterotrophic bacteria in deep-sea sediments regulates the efficiency of CO2 removal from the atmosphere over geological time scales.
Schlagwörter
Arctic Ocean

; 

microbial diversity

; 

microbial ecology

; 

sea ice

; 

deep sea

; 

deep-sea sediment

; 

sea-ice algae

; 

microbial eukaryotes

; 

sea-ice decline

; 

hydrolytic enzymes

; 

sediment metagenome

; 

sediment metatranscriptome

; 

Illumina sequencing
Institution
Universität Bremen  
Fachbereich
Fachbereich 02: Biologie/Chemie (FB 02)  
Dokumenttyp
Dissertation
Zweitveröffentlichung
Nein
Sprache
Englisch
Dateien
Lade...
Vorschaubild
Name

00106760-1.pdf

Size

29.53 MB

Format

Adobe PDF

Checksum

(MD5):41d41243503da0c2d16af68ba0e00e38

Built with DSpace-CRIS software - Extension maintained and optimized by 4Science

  • Datenschutzbestimmungen
  • Endnutzervereinbarung
  • Feedback schicken