Rhythmicity of coastal marine picoeukaryotes, bacteria and archaea despite irregular environmental perturbations.

ABSTRACT: Seasonality in marine microorganisms has been classically observed in phytoplankton blooms, and more recently studied at the community level in prokaryotes, but rarely investigated at the scale of individual microbial taxa. Here we test if specific marine eukaryotic phytoplankton, bacterial and archaeal taxa display yearly rhythms at a coastal site impacted by irregular environmental perturbations. Our seven-year study in the Bay of Banyuls (North Western Mediterranean Sea) shows that despite some fluctuating environmental conditions, many microbial taxa displayed significant yearly rhythms. The robust rhythmicity was found in both autotrophs (picoeukaryotes and cyanobacteria) and heterotrophic prokaryotes. Sporadic meteorological events and irregular nutrient supplies did, however, trigge

SUBMITTER: Lambert S 

PROVIDER: S-EPMC6331585 | biostudies-literature | 2019 Feb

REPOSITORIES: biostudies-literature