FN Archimer Export Format
PT J
TI Seston dynamics and bivalve feeding in the Bay of Marennes-Oléron (France)
BT 
AF ZURBURG, Wouter
   SMAAL, Aad
   HERAL, Maurice
   DANKERS, Norbert
AS 1:;2:;3:;4:;
FF 1:;2:;3:PDG-DP2S;4:;
SI SIEGE
SE PDG-DP2S
TC 0
UR https://archimer.ifremer.fr/doc/1994/publication-6843.PDF
LA English
DT Article
DE ;Microphytobenthos;Chlorophyll;Feeding;Mussel;Oyster;Seston quality;Seston load
AB Within the framework of an investigation into the carrying capacity of the Bay of Marennes-Oléron (France) for bivalve culture, the in situ uptake of suspended particulate material by oysters (Crassostrea gigas) and mussels (Mytilus edulis) was determined in experiments with benthic ecosystem tunnels. Very high fluctuations in seston quantity and quality were observed within and between tidal cycles. The percentage of organic carbon was inversely related to seston quantity at low concentrations. Organic carbon was diluted by resuspension of material rich in inorganic matter. At high seston concentrations a constant level of about 2% organic carbon was found. The CIN ratio was relatively constant throughout the seasons and fairly low (6.5 to 8.4). Owing to the presence of bivalves large fluxes of suspended particulate material were observed in the in situ measurements. Selective retention of organic carbon or nitrogen could not be demonstrated. Clearance rates based on chlorophyll uptake were within a normal range compared to other studies. A large contribution to the food of the bivalves seemed to be formed by resuspended microphytobenthos. Judged by the low CIN ratio, the food was of good quality. Although its quantity was. variable by dilution, it may support largely the carrying capacity of the Bay of Marennes-Oléron for the cultivation of bivalves. 
PY 1994
SO Netherlands Journal of Aquatic Ecology
PU Netherlands Institute of Ecology, The Netherlands
VL 28
IS 3-4
BP 459
EP 466
ID 6843
ER

EF