Cristin-resultat-ID: 2025273
Sist endret: 13. juli 2022, 14:27
NVI-rapporteringsår: 2022
Resultat
Vitenskapelig artikkel
2022

Patterns of eukaryotic diversity from the surface to the deep-ocean sediment

Bidragsytere:
  • Tristan Cordier
  • Inès Barrenechea Angeles
  • Nicolas Henry
  • Franck Lejzerowicz
  • Cédric Berney
  • Raphaël Morard
  • mfl.

Tidsskrift

Science Advances
ISSN 2375-2548
e-ISSN 2375-2548
NVI-nivå 2

Om resultatet

Vitenskapelig artikkel
Publiseringsår: 2022
Volum: 8
Hefte: 5
Open Access

Importkilder

Scopus-ID: 2-s2.0-85124140033

Beskrivelse Beskrivelse

Tittel

Patterns of eukaryotic diversity from the surface to the deep-ocean sediment

Sammendrag

Remote deep-ocean sediment (DOS) ecosystems are among the least explored biomes on Earth. Genomic assessments of their biodiversity have failed to separate indigenous benthic organisms from sinking plankton. Here, we compare global-scale eukaryotic DNA metabarcoding datasets (18S-V9) from abyssal and lower bathyal surficial sediments and euphotic and aphotic ocean pelagic layers to distinguish plankton from benthic diversity in sediment material. Based on 1685 samples collected throughout the world ocean, we show that DOS diversity is at least threefold that in pelagic realms, with nearly two-thirds represented by abundant yet unknown eukaryotes. These benthic communities are spatially structured by ocean basins and particulate organic carbon (POC) flux from the upper ocean. Plankton DNA reaching the DOS originates from abundant species, with maximal deposition at high latitudes. Its seafloor DNA signature predicts variations in POC export from the surface and reveals previously overlooked taxa that may drive the biological carbon pump.

Bidragsytere

Tristan Cordier

  • Tilknyttet:
    Forfatter
    ved Université de Genève
  • Tilknyttet:
    Forfatter
    ved NORCE Klima og miljø ved NORCE Norwegian Research Centre AS

Inès Barrenechea Angeles

  • Tilknyttet:
    Forfatter
    ved Université de Genève

Nicolas Henry

  • Tilknyttet:
    Forfatter
    ved Université Pierre et Marie Curie

Franck Lejzerowicz

  • Tilknyttet:
    Forfatter
    ved University of California, San Diego

Cédric Berney

  • Tilknyttet:
    Forfatter
    ved Université Pierre et Marie Curie
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