FN Archimer Export Format
PT J
TI Associations between farming practices and disease mortality of Pacific oyster Crassostrea gigas in a Mediterranean lagoon
BT 
AF PERNET, Fabrice
   LAGARDE, Franck
   LE GALL, Patrik
   ROQUE D'ORBCASTEL, Emmanuelle
AS 1:1,2;2:1;3:1;4:1;
FF 1:PDG-RBE-PFOM;2:PDG-ODE-LITTORAL-LERLR;3:PDG-ODE-LITTORAL-LERLR;4:PDG-ODE-LITTORAL-LERLR;
C1 IFREMER, Lab Environm Ressource Languedoc Roussillon, F-34200 Sete, France.
   UMR LEMAR Ifremer CNRS UBO IRD, Technopole Brest Iroise, F-29280 Plouzane, France.
C2 IFREMER, FRANCE
   IFREMER, FRANCE
SI BREST
   SETE
SE PDG-RBE-PFOM
   PDG-ODE-LITTORAL-LERLR
IN WOS Ifremer jusqu'en 2018
IF 1.964
TC 30
UR https://archimer.ifremer.fr/doc/00201/31248/30662.pdf
LA English
DT Article
DE ;Aquaculture;Epidemiology;OsHV-1;Shellfish farming
AB We present the first large-scale, high-resolution spatial and temporal pattern of disease mortality caused by Ostreid herpesvirus 1 (OsHV-1) that has affected Pacific oyster Crassostrea gigas in France every year since 2008, in relation to local farm use. Mortality was monitored in healthy oyster spat deployed at 106 locations in the Thau Mediterranean lagoon during the epizootic that occurred in spring 2011. We conducted a field survey of farming practices in the areas where the sentinel oysters were placed before the epizootic. We found that the risk of disease mortality in sentinel oysters was higher within the bivalve farming area than outside it, suggesting that the infection pressure is much higher in areas with intensive farming activity. The risk of mortality was higher in farms rearing spat, a developmental stage particularly susceptible to OsHV-1, than in farms rearing adult oysters, which are generally more resistant. Additionally, the mortality risk in farms rearing adult animals was similar to that in empty farms, which suggests that, during the study period, adult oysters did not vector the disease. Interestingly, the mortality risk for sentinel oysters deployed in mussel Mytilus galloprovincialis farms was lower than for those held in oyster farms or empty farms, suggesting that mussels reduced the infection pressure on susceptible oysters.
PY 2014
SO Aquaculture Environment Interactions
SN 1869-215X
PU Inter-research
VL 5
IS 2
UT 000338120600001
BP 99
EP 106
DI 10.3354/aei00096
ID 31248
ER

EF