FN Archimer Export Format
PT J
TI Linking Spatial and Temporal Dynamic of Bacterioplankton Communities With Ecological Strategies Across a Coastal Frontal Area
BT 
AF Lemonnier, Clarisse
   Perennou, Morgan
   Eveillard, Damien
   Fernandez-Guerra, Antonio
   Leynaert, Aude
   Marié, Louis
   Morrison, Hilary G.
   Memery, Laurent
   Paillard, Christine
   Maignien, Lois
AS 1:1,2;2:2;3:3;4:4,5,6;5:;6:7;7:8;8:2;9:2;10:1,8;
FF 1:;2:;3:;4:;5:;6:PDG-ODE-LOPS-OC;7:;8:;9:;10:;
C1 Univ Brest (UBO), CNRS, IFREMER, Laboratoire de Microbiologie des Environnements Extrêmes, Plouzané, France
   Univ Brest (UBO), CNRS, IRD, Ifremer, Laboratoire des Sciences de l’Environnement Marin, Plouzané, France
   Univ Nantes, CNRS, Centrale Nantes, IMTA, Laboratoire des Sciences Numériques de Nantes, Nantes, France
   Microbial Genomics and Bioinformatics Research Group, Max Planck Institute for Marine Microbiology, Bremen, Germany
   Lundbeck Foundation GeoGenetics Centre, GLOBE Institute, University of Copenhagen, Copenhagen, Denmark
   Center for Marine Environmental Sciences, University of Bremen, Bremen, Germany
   Univ Brest, CNRS, IRD, Ifremer, Laboratoire d’Océanographie Physique et Spatiale, Plouzané, France
   Marine Biological Laboratory, Josephine Bay Paul Center for Comparative Molecular Biology and Evolution, Woods Hole, MA, United States
C2 UBO, FRANCE
   CNRS, FRANCE
   UNIV NANTES, FRANCE
   MAX PLANCK INST MARINE, GERMANY
   UNIV COPENHAGEN, DENMARK
   UNIV BREMEN, GERMANY
   IFREMER, FRANCE
   MARINE BIOLOGICAL LAB, USA
SI BREST
SE PDG-ODE-LOPS-OC
UM LOPS
   BEEP-LM2E
   LEMAR
IN WOS Ifremer UMR
   WOS Cotutelle UMR
   DOAJ
   copubli-france
   copubli-europe
   copubli-univ-france
   copubli-int-hors-europe
IF 5.247
TC 8
UR https://archimer.ifremer.fr/doc/00634/74657/74557.pdf
   https://archimer.ifremer.fr/doc/00634/74657/74558.pdf
   https://archimer.ifremer.fr/doc/00634/74657/74559.xlsx
   https://archimer.ifremer.fr/doc/00634/74657/74560.pdf
   https://archimer.ifremer.fr/doc/00634/74657/74561.docx
   https://archimer.ifremer.fr/doc/00634/74657/74562.docx
   https://archimer.ifremer.fr/doc/00634/74657/74563.docx
   https://archimer.ifremer.fr/doc/00634/74657/74564.docx
LA English
DT Article
CR M2BIPAT LEG1
   M2BIPAT LEG2
BO Côtes De La Manche
DE ;marine front;bacterial communities;dynamic;network;ecological strategies
AB Ocean frontal systems are widespread hydrological features defining the transition zone between distinct water masses. They are generally of high biological importance as they are often associated with locally enhanced primary production by phytoplankton. However, the composition of bacterial communities in the frontal zone remains poorly understood. In this study, we investigate how a coastal tidal front in Brittany (France) structures the free-living bacterioplankton communities in a spatio-temporal survey across four cruises, five stations and three depths. We used 16S rRNA gene surveys to compare bacterial community structures across 134 seawater samples and defined groups of co-varying taxa (modules) exhibiting coherent ecological patterns across space and time. We found that bacterial communities composition was strongly associated with the biogeochemical characteristics of the different water masses and that the front act as an ecological boundary for free-living bacteria. Seasonal variations in primary producers and their distribution in the water column appeared as the most salient parameters controlling heterotrophic bacteria which dominated the free-living community. Different dynamics of modules observed in this environment were strongly consistent with a partitioning of heterotrophic bacterioplankton in oligotroph and copiotroph ecological strategies. Oligotroph taxa, dominated by SAR11 Clade members, were relatively more abundant in low phytoplankton, high inorganic nutrients water masses, while copiotrophs and particularly opportunist taxa such as Tenacibaculum sp. or Pseudoalteromonas sp. reached their highest abundances during the more productive period. Overall, this study shows a remarkable coupling between bacterioplankton communities dynamics, trophic strategies, and seasonal cycles in a complex coastal environment. 
PY 2020
PD JUL
SO Frontiers In Marine Science
SN 2296-7745
PU Frontiers Media SA
VL 7
UT 000538994800001
DI 10.3389/fmars.2020.00376
ID 74657
ER

EF