FN Archimer Export Format
PT J
TI Influence of oyster culture on biogeochemistry and bacterial community structure at the sediment-water interface
BT 
AF AZANDEGBE, Afi
   POLY, Franck
   ANDRIEUX, Francoise
   KEROUEL, Roger
   PHILIPPON, Xavier
   NICOLAS, Jean-Louis
AS 1:;2:2;3:3;4:3;5:3;6:1;
FF 1:PDG-RBE-PFOM-PI;2:;3:PDG-ODE-DYNECO-PELAGOS;4:PDG-ODE-DYNECO-PELAGOS;5:PDG-ODE-DYNECO-PELAGOS;6:PDG-RBE-PFOM-PI;
C1 IFREMER, Ctr Brest, LEMAR, Lab Physiol Invertebres,PFOM,UMR 6539, F-29280 Plouzane, France.
   Univ Lyon 1, CNRS, USC1193, Lab Ecol Microbienne,INRA,UMR5557, F-69622 Villeurbanne, France.
   IFREMER, Ctr Brest, Lab Dyneco, F-29280 Plouzane, France.
C2 IFREMER, FRANCE
   UNIV LYON, FRANCE
   IFREMER, FRANCE
SI BREST
SE PDG-RBE-PFOM-PI
   PDG-ODE-DYNECO-PELAGOS
IN WOS Ifremer jusqu'en 2018
   copubli-france
   copubli-univ-france
IF 3.56
TC 12
UR https://archimer.ifremer.fr/doc/00079/19010/17083.pdf
LA English
DT Article
DE ;sediment;biogeochemical parameters;fluxes;bacterial structure;Crassostrea gigas
AB Bacterial community structure and some biogeochemical parameters were studied in the sediment of two Pacific oyster farming sites, Aber Benoît (AB) and Rivière d'Auray (RA) in Brittany (France), to examine the ecological impact of oysters and to evaluate the emission of sulfide and ammonia from sediment. At AB, the organic matter accumulated in the sediment beneath the oyster tables was rapidly mineralized, with strong fluxes of ammonia and sulfide that reached 1014 μmol m−2 h−1 - and 215 μmol m−2 h−1, respectively, in June 2007. At RA, the fluxes were about half as strong on average and better distributed through the year. The ammonia and sulfide concentrations in the overlying water never reached levels that would be toxic to oysters in either site, nor did hypoxia occur.  Total culturable bacteria (TCB) varied greatly according to the temperature: from 1.6 104 to 9.4 107.cell g−1 sediment. Inversely, the bacterial community structure remained surprising stable through the seasons, marginally influenced by the presence of oysters and by temperature. Bacterial communities appeared to be characteristic of the sites, with only one common phylotype, Vibrio aestuarianus a potential oyster pathogen. These data refine the hypothesis of seawater toxicity to oysters due to ammonia and sulfide fluxes and show that the measured environmental factors only had a weak influence on bacterial community structure.
PY 2012
PD OCT
SO Fems Microbiology Ecology
SN 0168-6496
PU Wiley-blackwell
VL 82
IS 1
UT 000308580900009
BP 102
EP 117
DI 10.1111/j.1574-6941.2012.01410.x
ID 19010
ER

EF