{"controller"=>"catalog", "action"=>"show", "id"=>"2169256731"}
  • EN
  • DA

Danish NationalResearch Database

  • Search Publications & Researchers
  • Open Access Indicator
  • Publications
  • Researchers
Example Finds records
water{} containing the word "water".
water supplies"{}" containing the phrase "water supplies".
author:"Doe, John"author:"{}" containing the prase "Doe, John" in the author field.
title:IEEEtitle:{} containing the word "IEEE" in the title field.
Need more help? Advanced search tutorial
  • Selected (0)
  • History

Microbial Mn(IV) and Fe(III) reduction in northern Barents Sea sediments under different conditions of ice cover and organic carbon deposition

    • Save to Mendeley
    • Export to BibTeX
    • Export to RIS
    • Email citation
Authors:
  • Nickel, Maren ;
    Close
    unknown
  • Vandieken, Verona ;
    Close
    unknown
  • Brüchert, Volker ;
    Close
    unknown
  • Jørgensen, Bo Barker
    Close
    Department of Bioscience - Center for Geomicrobiology, Department of Bioscience, Science and Technology, Aarhus University
DOI:
10.1016/j.dsr2.2008.05.003
Abstract:
Carbon oxidation rates and pathways were determined in two sediments at latitude 75° and 77°N southeast of Svalbard in the northern Barents Sea. Seasonal ice cover restricts primary production to few months a year, which determines the sedimentation rate of organic material to the seafloor. At one station, with seasonally extended ice cover, low organic carbon content and sedimentation rate combined with relatively high concentrations of Mn and Fe(III) oxides favored dissimilatory Fe and Mn reduction (98% of anaerobic carbon oxidation) over sulfate reduction in the top 12 cm of the sediment. In contrast, in a sediment that had not been ice covered for at least 12 months and with more organic carbon and a higher sedimentation rate, sulfate reduction was the most important anaerobic electron-accepting process (>80% of anaerobic carbon oxidation). In the upper 3 cm, microbial Fe and sulfate reduction occurred simultaneously, and sulfate reduction dominated at 3-12 cm. Oxygen consumption rates (1.9 and 3.7 mmol m-2 d-1) and anaerobic CO2 production rates (1.3 and 6.4 mmol m-2 d-1) of both stations were similar to rates from open-ocean sediments farther north in the Barents Sea but lower compared to those in fjords of Svalbard.
Type:
Journal article
Language:
English
Published in:
Deep-sea Research. Part 2: Topical Studies in Oceanography, 2008, Vol 55, p. 2390-2398
Main Research Area:
Science/technology
Publication Status:
Published
Review type:
Peer Review
Submission year:
2008
Scientific Level:
Scientific
ID:
2169256731

Full text access

  • Doi Get publisher edition via DOI resolver
Checking for on-site access...

On-site access

At institution

  • Aarhus university.en
Feedback

Sitemap

  • Search
    • Statistics
    • Tutorial
    • Data
    • FAQ
    • Contact
  • Open Access
    • Overview
    • Development
    • FAQ
    • Contact
  • About
    • Institutions
    • Release History
    • Cookies and privacy policy

Copyright © 1998–2018.

Fivu en