FN Archimer Export Format
PT Rapport
TI Feeding of Crassostrea gigas at high seston load : modeling requirements
BT 
AF BARILLE, Laurent
   PROU, Jean
AS 1:1;2:1;
FF 1:;2:;
C1 Ifremer, France
C2 IFREMER, FRANCE
SI LA TREMBLADE
UR https://archimer.ifremer.fr/doc/00102/21299/18913.pdf
LA English
DT Report
DE ;Matematical model;Oyster;Crassostrea gigas;Clearance rate;Seclection efficency;Marennes Oleron;Charente Maritime
AB Ecophysiological experiments conducted in situ in the Bay of Marennes-Oléron during a spring and neap tide cycle in May 1991 , were designed to get a better representation of 2 important components of the energy budget of the Japanese oyster Crassostrea gigas : clearance rate and selection efficiency. The relationships previously established by Raillard et al. ( 1993) are re-evaluated by integrating the effects of high seston loads, typical of tidal effect within estuaries, on the physiological processes. For the clearance rate, the re-evaluated parameterization includes: - a negative effect of turbidity. - a clogging threshold set to 192 mg/l. Selection efficiency parameterizations are modified by incorporating : - a constant inorganic ingestion for increasing seston load, set to 17 % of the inorganic filtered ration. - an upper selection threshold for the paticulate organic matter set to 160 mg/l. The oyster growth model should be enhanced by integrating theses new equations built-up on realistic field conditions.
PY 1993
PD MAR
ID 21299
ER

EF