FN Archimer Export Format
PT J
TI Endogenous versus exogenous factors: What matters for vent mussel communities?
BT 
AF Sarrazin, Jozee
   Portail, Marie
   Legrand, E.
   Cathalot, Cecile
   Laes, Agathe
   LAHAYE, Noe
   Sarradin, Pierre-Marie
   Husson, Berengere
AS 1:1;2:1;3:2;4:3;5:4;6:5;7:1;8:6;
FF 1:PDG-REM-EEP-LEP;2:PDG-REM-EEP-LEP;3:;4:PDG-REM-GM-LCG;5:PDG-REM-RDT-LDCM;6:;7:PDG-REM-EEP;8:PDG-REM-EEP-LEP;
C1 Ifremer, Centre de Bretagne, REM/EEP, Laboratoire Environnement Profond, F-29 280, Plouzané, France
   Institute of Marine Research, Nordnesgaten 50, 5005, Bergen, Norway
   Ifremer, Centre de Bretagne, REM/GM, Laboratoire Cycles Géochimiques et Ressources, F-29 280, Plouzané, France
   Ifremer, Centre de Bretagne, REM/RDT, Laboratoire Détection, Capteurs et Mesures, F-29 280, Plouzané, France
   Université de Bretagne Occidentale, CNRS, IRD, Ifremer, Laboratoire d'Océanographie Physique et Spatiale (LOPS), IUEM, Brest, France
   Institute of Marine Research, Hjalmar Johansens gate 14, 9007, Tromsø, Norway
C2 IFREMER, FRANCE
   IMR (BERGEN), NORWAY
   IFREMER, FRANCE
   IFREMER, FRANCE
   IFREMER, FRANCE
   INST MAR RES, NORWAY
SI BREST
SE PDG-REM-EEP-LEP
   PDG-REM-GM-LCG
   PDG-REM-RDT-LDCM
   PDG-ODE-LOPS
   PDG-REM-EEP
UM LOPS
IN WOS Ifremer UPR
   WOS Ifremer UMR
   copubli-europe
IF 2.955
TC 7
UR https://archimer.ifremer.fr/doc/00615/72661/71671.pdf
LA English
DT Article
CR BIOBAZ 2013
   MOMARSAT : MONITORING THE MID ATLANTIC RIDGE
   MOMARSAT2011
   MOMARSAT2012
BO Pourquoi pas ?
   Thalassa
DE ;Intra-field variability;Inter-field variability;Hydrothermal fauna;Abiotic factors;Diversity measures;Macrofauna;Meiofauna;Environmental drivers;Community structure;Habitats
AB The factors influencing the structure of hydrothermal communities are not necessarily similar across geographical regions and vent fields. In the present study, we explore the role of environmental conditions on vent community structure at local and regional spatial scales, focusing on the assemblages dominated by the engineer species Bathymodiolus azoricus. Their presence in several vent fields on the northern Mid-Atlantic Ridge (MAR) represents a unique opportunity to compare their associated fauna and to better understand large-scale biodiversity patterns. Two types of factors were considered: exogenous ones such as the presence of biogeographical barriers, depth, and distance between sites, and those linked to the intrinsic characteristics of each field (endogenous factors, e.g. local abiotic conditions). The main goals of our study are to describe and compare the biological and environmental characteristics of mussel assemblages collected from three vent fields – Menez Gwen (MG), Lucky Strike (LS) and Rainbow (RB) – located in the Azores Triple Junction on the MAR. These fields differ in the chemistry of their end-member fluids, their depths as well as their geological settings. We focus on the composition, abundance, and diversity of the macro- and meiofauna associated with the vent mussels. Comparing them between vent fields and among the different edifices of a single vent field (Lucky Strike) allows us to study the influence of exogenous and endogenous factors at local and regional scales. On the local scale, our results show that the pool of species associated with B. azoricus is largely shared between the edifices of LS, which suggest no obstacles to species dispersion across the field. However, differences in relative abundances foster mussel assemblages with varying diversity, probably linked to differences in local abiotic conditions between the various chemistry domains of the field. At larger scale, we observed a “vent field signature” in the communities associated with B. azoricus. Distinct patterns of abundances and diversity were observed across the three fields, with MG appearing as a particular case. The presence of a longitudinal current to the south of this field and its depth difference may partially explain those discrepancies. This study represents one of the most comprehensive integrated faunal and environmental datasets obtained across hydrothermal vent fields. 
PY 2020
PD JUL
SO Deep-sea Research Part I-oceanographic Research Papers
SN 0967-0637
PU Elsevier BV
VL 160
UT 000535357000007
DI 10.1016/j.dsr.2020.103260
ID 72661
ER

EF