FN Archimer Export Format
PT J
TI Dynamics and sources of suspended particulate organic matter in the Marennes-Oléron oyster farming bay: Insights from stable isotopes and microalgae ecology
BT 
AF MALET, Nathalie
   SAURIAU, Pierre-Guy
   RYCKAERT, Mireille
   MALESTROIT, Pascale
   GUILLOU, Gael
AS 1:1,2;2:2;3:3;4:4;5:2;
FF 1:PDG-DOP-LER-LERLR;2:;3:PDG-DOP-LER-LERPC;4:PDG-ODE-DYNECO-PELAGOS;5:;
C1 IFREMER, Lab Environm Ressources Languedoc Roussillon, F-34203 Sete, France.
   ULR, IFREMER, CNRS, Ctr Rech Ecosyst Littoraux Anthropises, F-17137 Lhoumeau, France.
   IFREMER, Lab Environm Ressources Pertuis Charentais, F-17137 Lhoumeau, France.
   IFREMER, Lab Environm Ressources Pertuis Charentais, F-17390 La Tremblade, France.
C2 IFREMER, FRANCE
   CNRS, FRANCE
   IFREMER, FRANCE
   IFREMER, FRANCE
SI SETE
   LA ROCHELLE
   BREST
SE PDG-DOP-LER-LERLR
   CNRS
   PDG-DOP-LER-LERPC
   PDG-ODE-DYNECO-PELAGOS
IN WOS Ifremer jusqu'en 2018
   copubli-france
IF 2.072
TC 30
UR https://archimer.ifremer.fr/doc/2008/publication-4313.pdf
LA English
DT Article
DE ;heatwave;Zostera noltii;mudflat;microphytobenthos;phytoplankton;suspended particulate organic matter;Marennes Oléron Bay
AB The aim of this study was to distinguish between sources of the complex variety of Marennes-Oléron Bay suspended particulate organic matter (SPOM) contributing to the tropho-dynamics of the Marennes-Oléron oyster farming bay. Basic biomarkers (Chl a, C/N and POC/Chl a ratios), carbon and nitrogen stable isotopes from SPOM were analyzed and the microalgae community was characterized. The sampling strategy was bimonthly from March 2002 to December 2003; samples were taken from an intertidal mudflat. Four main sources contributed to the SPOM pool: terrigenous input from rivers, neritic phytoplankton, resuspended microphytobenthos and periodic inputs from intertidal Zostera noltii meadows. Seasonal fluctuations were observed in both years of the study period: (1) SPOM collected in the spring of 2002 (δ13C = −250/00 to −230/00) was mainly composed of fresh estuarine inputs; (2) SPOM from the summer and fall of 2002 and 2003 was predominantly neritic phytoplankton (δ13C = − 220/00 to −190/00); (3) SPOM from the winter of 2002, spring of 2003 and winter of 2003 (δ13C = −21 to −230/00) was composed of a mixture of decayed terrigenous river inputs and pelagic phytoplankton, which was predominantly resuspended microphytobenthos. In the summer of 2003—the warmest summer on record in southern France and Europe—SPOM was particularly enriched for 13C, with δ13C values ranging from −140/00 to −120/00. Pulses in δ13C values, indicative of 13C-enriched decaying materials, extended into the fall. These were attributed to benthic intertidal inputs, including both resuspended microphytobenthos and Z. noltii detritus. Changes in SPOM sources in Marennes-Oléron Bay may lead to differences in the quality of the trophic environment available for reared oysters.
PY 2008
PD JUN
SO Estuarine, Coastal and Shelf Science
SN 0272-7714
PU Elsevier
VL 78
IS 3
UT 000257084000012
BP 576
EP 586
DI 10.1016/j.ecss.2007.11.001
ID 4313
ER

EF