Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Turbulence simultaneously stimulates small- and large-scale CO2 sequestration by chain-forming diatoms in the sea
Swedish Museum of Natural History, Department of Geology. (Nordsim)ORCID iD: 0000-0003-2227-577X
Show others and affiliations
2018 (English)In: Nature Communications, ISSN 2041-1723, E-ISSN 2041-1723, Vol. 9, no 1Article in journal (Refereed) Published
Abstract [en]

Chain-forming diatoms are key CO2-fixing organisms in the ocean. Under turbulent conditions they form fast-sinking aggregates that are exported from the upper sunlit ocean to the ocean interior. A decade-old paradigm states that primary production in chain-forming diatoms is stimulated by turbulence. Yet, direct measurements of cell-specific primary production in individual field populations of chain-forming diatoms are poorly documented. Here we measured cell-specific carbon, nitrate and ammonium assimilation in two field populations of chain-forming diatoms (Skeletonema and Chaetoceros) at low-nutrient concentrations under still conditions and turbulent shear using secondary ion mass spectrometry combined with stable isotopic tracers and compared our data with those predicted by mass transfer theory. Turbulent shear significantly increases cell-specific C assimilation compared to still conditions in the cells/chains that also form fast-sinking, aggregates rich in carbon and ammonium. Thus, turbulence simultaneously stimulates small-scale biological CO2 assimilation and large-scale biogeochemical C and N cycles in the ocean.

Place, publisher, year, edition, pages
2018. Vol. 9, no 1
National Category
Biological Sciences
Research subject
Ecosystems and species history
Identifiers
URN: urn:nbn:se:nrm:diva-3184DOI: 10.1038/s41467-018-05149-wOAI: oai:DiVA.org:nrm-3184DiVA, id: diva2:1273370
Available from: 2018-12-20 Created: 2018-12-20 Last updated: 2019-01-14Bibliographically approved

Open Access in DiVA

fulltext(1556 kB)157 downloads
File information
File name FULLTEXT01.pdfFile size 1556 kBChecksum SHA-512
aedabbcafd3ba7719c2a1468c685047736981fe2f5135c10a037efb54c0dd2512c940d42b08a196d2ec7795d0613558f4cbd9621974f33488ed410de0a70b364
Type fulltextMimetype application/pdf

Other links

Publisher's full texthttps://doi.org/10.1038/s41467-018-05149-w

Search in DiVA

By author/editor
Whitehouse, Martin J.
By organisation
Department of Geology
In the same journal
Nature Communications
Biological Sciences

Search outside of DiVA

GoogleGoogle Scholar
Total: 157 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 4 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf