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Disentangling microbial networks across pelagic zones in the tropical and subtropical global ocean
Deutschmann, I.M.; Delage, E.; Giner, C.R.; Sebastian, M.; Poulain, J.; Aristegui, J.; Duarte, C.M.; Acinas, S.G.; Massana, R.; Gasol, J.M.; Eveillard, D.; Chaffron, S.; Logares, R. (2024). Disentangling microbial networks across pelagic zones in the tropical and subtropical global ocean. Nature Comm. 15(1): 126. https://dx.doi.org/10.1038/s41467-023-44550-y
In: Nature Communications. Nature Publishing Group: London. ISSN 2041-1723; e-ISSN 2041-1723
Peer reviewed article  
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Auteurs  Top 
  • Deutschmann, I.M.
  • Delage, E.
  • Giner, C.R.
  • Sebastian, M.
  • Poulain, J.
  • Aristegui, J.
  • Duarte, C.M.
  • Acinas, S.G.
  • Massana, R.
  • Gasol, J.M.
  • Eveillard, D.
  • Chaffron, S.
  • Logares, R.
Abstract
    Microbial interactions are vital in maintaining ocean ecosystem function, yet their dynamic nature and complexity remain largely unexplored. Here, we use association networks to investigate possible ecological interactions in the marine microbiome among archaea, bacteria, and picoeukaryotes throughout different depths and geographical regions of the tropical and subtropical global ocean. Our findings reveal that potential microbial interactions change with depth and geographical scale, exhibiting highly heterogeneous distributions. A few potential interactions were global, meaning they occurred across regions at the same depth, while 11-36% were regional within specific depths. The bathypelagic zone had the lowest proportion of global associations, and regional associations increased with depth. Moreover, we observed that most surface water associations do not persist in deeper ocean layers despite microbial vertical dispersal. Our work contributes to a deeper understanding of the tropical and subtropical global ocean interactome, which is essential for addressing the challenges posed by global change.
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