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Connectivity between surface and deep waters determines prokaryotic diversity in the North Atlantic Deep Water
Frank, A.H.; Garcia, J.A.L.; Herndl, G.; Reinthaler, T. (2016). Connectivity between surface and deep waters determines prokaryotic diversity in the North Atlantic Deep Water. Environ. Microbiol. 18(6): 2052–2063. dx.doi.org/10.1111/1462-2920.13237
In: Environmental Microbiology. Blackwell Scientific Publishers: Oxford. ISSN 1462-2912; e-ISSN 1462-2920, meer
Peer reviewed article  
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  • Frank, A.H.
  • Garcia, J.A.L.
  • Herndl, G., meer
  • Reinthaler, T.
Abstract
    To decipher the influence of depth stratification andsurface provincialism on the dark ocean prokaryoticcommunity composition, we sampled the major deepwatermasses in the eastern North Atlantic coveringthree biogeographic provinces. Their diversity wasevaluated using ordination and canonical analysis of454 pyrotag sequences. Variance partitioning suggestedthat 16% of the variation in the bacterialcommunity composition was based on depth stratificationwhile 9% of the variation was due togeographic location. General linear mixed effectmodels showed that the community of the subsurfacewaters was connected to the dark ocean prokaryoticcommunities in different biogeographic provinces.Cluster analysis indicated that some prokaryotic taxaare specific to distinct regions in bathypelagic watermasses. Taken together, our data suggest that thedark ocean prokaryotic community composition ofthe eastern North Atlantic is primed by the formationand the horizontal transport of water masses.
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