Helmholtz Gemeinschaft

Search
Browse
Statistics
Feeds

Patterns and drivers of diatom diversity and abundance in the global ocean

[thumbnail of Original Article]
Preview
PDF (Original Article) - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader
30MB
[thumbnail of Supplementary Information] Other (Supplementary Information)
79MB

Item Type:Article
Title:Patterns and drivers of diatom diversity and abundance in the global ocean
Creators Name:Pierella Karlusich, J.J., Cosnier, K., Zinger, L., Henry, N., Nef, C., Bernard, G., Scalco, E., Dvorak, E., Vieira, F.R.J., Delage, E., Chaffron, S., Ovchinnikov, S., Zingone, A. and Bowler, C.
Abstract:Diatoms constitute one of the most diverse and ecologically important phytoplankton groups, yet their large-scale diversity patterns and drivers of abundance are unclear due to limited observations. Here, we utilize Tara Oceans molecular and morphological data, spanning pole to pole, to describe marine diatom diversity, abundance, and environmental adaptation and acclimation strategies. The dominance of diatoms among phytoplankton in terms of relative abundance and diversity is confirmed, and the most prevalent genera are Chaetoceros, Thalassiosira, Actinocyclus and Pseudo-nitzschia. We define 25 distinct diatom communities with varying environmental preferences illustrative of different life strategies. The Arctic Ocean stands out as a diatom hotspot with 6 of the diatom communities being exclusive to it. Light harvesting and photoprotection are among the cellular functions in which natural diatom populations invest the bulk of their transcriptional efforts. This comprehensive study sheds light on marine diatom distributions, offering insights to assess impacts of global change and oceanic anthropogenic impacts.
Keywords:Arctic Regions, Biodiversity, Diatoms, Ecosystem, Oceans and Seas, Phylogeny, Phytoplankton
Source:Nature Communications
ISSN:2041-1723
Publisher:Nature Publishing Group
Volume:16
Number:1
Page Range:3452
Date:11 April 2025
Additional Information:Peer Bork is a Tara Oceans Coordinator.
Official Publication:https://doi.org/10.1038/s41467-025-58027-7
PubMed:View item in PubMed

Repository Staff Only: item control page

Downloads

Downloads per month over past year

Open Access
MDC Library