FN Archimer Export Format
PT J
TI Infection dynamics of Marteilia refringens in flat oyster Ostrea edulis and copepod Paracartia grani in a claire pond of Marennes-Oleron Bay
BT 
AF AUDEMARD, Corinne
   SAJUS, Marie-Céline
   BARNAUD, Antoine
   SAUTOUR, Benoît
   SAURIAU, Pierre-Guy
   BERTHE, Franck
AS 1:;2:;3:;4:;5:;6:;
FF 1:;2:;3:;4:;5:;6:PDG-DRV-RA-LGP;
C1 IFREMER, Lab Genet & Pathol, F-17390 La Tremblade, France.
   Univ Bordeaux 1, CNRS, UMR 5805, Lab Oceanog Biol, F-33120 Arcachon, France.
   IFREMER, CNRS, UMR 10, CREMA, F-17137 Lhoumeau, France.
C2 IFREMER, FRANCE
   UNIV BORDEAUX 1, FRANCE
   IFREMER, FRANCE
SI LA ROCHELLE
   LA TREMBLADE
SE PDG-DOP-DCN-AGSAE-CREMA
   PDG-DRV-RA-LGP
IN WOS Ifremer jusqu'en 2018
   copubli-univ-france
IF 1.583
TC 18
UR https://archimer.ifremer.fr/doc/2004/publication-2858.pdf
LA English
DT Article
DE ;Claire pond;Infection dynamics;Paracartia grani;Ostrea edulis;Marteilia refringens
AB The protozoan parasite Marteilia refringens has been partly responsible for the severe decrease in the production of the European flat oyster Ostrea edulis Linnaeus in France since the 1970s. The calanoid copepod Paracartia grani Sars was recently found to be a host for M refringens in French shallow-water oyster ponds ('claires'). This study reconsidered M refringens transmission dynamics in the light of this finding, taking into account not only oyster infection dynamics and environmental factors but also data concerning the copepod host. P. grani population dynamics in the claire under study revealed that this species is the dominant planktonic copepod in this confined ecosystem. During winter, M refringens overwintered in O. edulis, with P. grani existing only as resting eggs in the sediment. The increase in temperature in spring controlled and synchronized both the release of M refringens sporangia in the oyster feces, and the hatching of the benthic resting eggs of the copepod. Infection of oysters by M refringens was limited to June, July and August, coinciding with (1) the highest temperature recorded in the claire, and (2) the highest abundance of P. grani. PCR detection of M refringens in P. grani during the summer period was linked to the release of parasite sporangia by the oyster. Our results are supported by previous results on the effective transmission of this parasite from the oyster to the copepod.
PY 2004
PD OCT
SO Diseases of aquatic organisms
SN 0177-5103
PU Inter-Research
VL 61
IS 1-2
UT 000226045400013
BP 103
EP 111
DI 10.3354/dao061103
ID 2858
ER

EF