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Oceanic fronts: transition zones for bacterioplankton community composition
Author(s) -
Baltar Federico,
Currie Kim,
Stuck Esther,
Roosa Stéphanie,
Morales Sergio E
Publication year - 2016
Publication title -
environmental microbiology reports
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.229
H-Index - 69
ISSN - 1758-2229
DOI - 10.1111/1758-2229.12362
Subject(s) - bacterioplankton , water mass , biogeochemical cycle , oceanography , archaea , ecology , community structure , biology , mesoscale meteorology , biological dispersal , environmental science , geology , bacteria , nutrient , phytoplankton , paleontology , population , demography , sociology
Summary Oceanic fronts are widespread mesoscale features that exist in the boundary between different water masses. Despite the recognized importance of bacterioplankton (including bacteria and archaea) on the marine biogeochemical cycles and the ubiquitousness of fronts, the effect of frontal zones on the distribution of bacterioplankton community remains unknown. Using 16S rRNA gene sequencing coupled with a high spatial resolution analysis of the physical properties of the water masses, we demonstrate strong shifts in bacterioplankton community composition ( BCC ) across the subtropical frontal zone off N ew Z ealand. The transition between water masses resulted in a clear modification of the dominant taxa and a significant increase in community dissimilarity. Our results, linking physical oceanography and marine molecular ecology, support the strong role of oceanic frontal zones in delimiting the distribution of bacterioplankton in the ocean.