FN Archimer Export Format
PT J
TI Relationships between oyster mortality patterns and environmental data from monitoring databases along the coasts of France
BT 
AF SOLETCHNIK, Patrick
   ROPERT, Michel
   MAZURIE, Joseph
   FLEURY, Pierre-Gildas
   LE COZ, Florence
AS 1:1;2:2;3:3;4:3;5:3;
FF 1:PDG-DOP-LER-LERPC;2:PDG-DOP-LER-LERN;3:PDG-DOP-LER-LERMPL;4:PDG-DOP-LER-LERMPL;5:PDG-DOP-LER-LERMPL;
C1 IFREMER, Lab Environm & Ressources Morbihan Pays Loire, F-56470 La Trinite Sur Mer, France.
   IFREMER, Lab Environm Ressources Normandie, Port En Bessin, France.
   IFREMER, Lab Environm Ressources Pertuis Charentais, F-17390 La Tremblade, France.
C2 IFREMER, FRANCE
   IFREMER, FRANCE
   IFREMER, FRANCE
SI LA TREMBLADE
   PORT-EN-BESSIN
   LA TRINITE
SE PDG-DOP-LER-LERPC
   PDG-DOP-LER-LERN
   PDG-DOP-LER-LERMPL
IN WOS Ifremer jusqu'en 2018
IF 1.735
TC 75
UR https://archimer.ifremer.fr/doc/2007/publication-3295.pdf
LA English
DT Article
DE ;Mortality;Environment;Crassostrea gigas;Pacific oyster
AB Oyster mortality was monitored at multiple sites along the French coastline (around 5 500 km) between 1993 and 2005. Mortality data for one- and two-year-old oysters were collected over 10–12 years in 39 oyster culture sites bordering 3 different "seas": the English Channel, Bay of Biscaye and Mediterranean. Combining these data with records from environmental monitoring databases, 11 of these sites had consistent chronological data sets including both environmental data and mortality records. Mortality in one-year-old oysters was clearly summer mortality (49% of their annual mortality) whereas mortality of two-year-olds occurred mostly in spring (51%). Analysis of variance revealed that "coastal area" was the main influence on mortality of one-year-olds (77.5%% of the variance) and that "year studied" was the main influence on mortality of two-year-olds (60.6% of the variance). The highest mortalities occurred in Marennes and in several sites in Brittany for both age groups, and in Veys Bay (Normandy) for two-year-old oysters only. Environmental parameters were then analysed to investigate which of these might influence summer mortality. Principal Component Analyses revealed that environmental factors such as chlorophyll a (food resource indicator) and salinity (watershed effect) influence oyster mortality. Chlorophyll a concentration (10% of the variance), water temperature (7% of the variance) and turbidity (5% of the variance) are the main significant factors for the mortality of one-year-olds, while salinity and chlorophyll a have more effect on the mortality of two-year-old oysters (respectively 5% and 4% of the variance)
PY 2007
PD OCT
SO Aquaculture
SN 0044-8486
PU Elsevier
VL 271
IS 1-4
UT 000249874600041
BP 384
EP 400
DI 10.1016/j.aquaculture.2007.02.049
ID 3295
ER

EF