Restructuring of plankton genomic biogeography in the surface ocean under climate change - INSU - Institut national des sciences de l'Univers Access content directly
Journal Articles Nature Climate Change Year : 2022

Restructuring of plankton genomic biogeography in the surface ocean under climate change

Abstract

The impact of climate change on diversity, functioning and biogeography of marine plankton remains a major unresolved issue. Here environmental niches are evidenced for plankton communities at the genomic scale for six size fractions from viruses to meso-zooplankton. The spatial extrapolation of these niches portrays ocean partitionings south of 60° N into climato-genomic provinces characterized by signature genomes. By 2090, under the RCP8.5 future climate scenario, provinces are reorganized over half of the ocean area considered, and almost all provinces are displaced poleward. Particularly, tropical provinces expand at the expense of temperate ones. Sea surface temperature is identified as the main driver of changes (50%), followed by phosphate (11%) and salinity (10%). Compositional shifts among key planktonic groups suggest impacts on the nitrogen and carbon cycles. Provinces are linked to estimates of carbon export fluxes which are projected to decrease, on average, by 4% in response to biogeographical restructuring.
Fichier principal
Vignette du fichier
Restructuring_of_plankton_genomic_biogeography_in_.pdf (32.4 Mo) Télécharger le fichier
Origin : Files produced by the author(s)

Dates and versions

insu-03659872 , version 1 (08-01-2024)

Identifiers

Cite

Paul Frémont, Marion Gehlen, Mathieu Vrac, Jade Leconte, Tom O. Delmont, et al.. Restructuring of plankton genomic biogeography in the surface ocean under climate change. Nature Climate Change, 2022, 12 (4), pp.393-401. ⟨10.1038/s41558-022-01314-8⟩. ⟨insu-03659872⟩
124 View
15 Download

Altmetric

Share

Gmail Facebook X LinkedIn More