FN Archimer Export Format PT J TI Modeling the impact of oyster culture on a mudflat food web in Marennes-Oleron Bay (France) BT AF LEGUERRIER, D NIQUIL, Nathalie PETIAU, A BODOY, Alain AS 1:;2:;3:;4:; FF 1:;2:;3:;4:PDG-DRV-RA-CREMA; C1 Univ La Rochelle, CNRS, FRE 2727, Lab Biol & Environm Marins, F-17042 La Rochelle 1, France. CREMA, UMR 10, CNRS, IFREMER, F-17137 Lhoumeau, France. C2 UNIV LA ROCHELLE, FRANCE IFREMER, FRANCE SI LA ROCHELLE SE PDG-DRV-RA-CREMA IN WOS Ifremer jusqu'en 2018 copubli-univ-france IF 2.052 TC 48 UR https://archimer.ifremer.fr/doc/00000/10816/7583.pdf LA English DT Article DE ;carbon flux;inverse analysis;food web;network analysis;bivalve culture AB We used a carbon-based food web model to investigate the effects of oyster cultivation on the ecosystem of an intertidal mudflat. A previously published food web model of a mudflat in Marennes-Oleron Bay, France, was updated with revised parameters, and a realistic surface area and density of existing oyster cultures on the mudflat. We developed 2 hypothetical scenarios to estimate the impact of oyster cultivation on the food web structure of the ecosystem: one with no oysters, the other with a doubled area devoted to cultivated oysters in the bay. Oysters are direct trophic competitors of other filter feeders, and their presence modifies benthic-pelagic coupling by forcing a shift from pelagic consumers to benthic consumers. Increasing the surface area of cultivated oysters caused secondary production to increase, providing food for top predators (in particular juvenile nekton), reinforcing the nursery role of the mudflat in the ecosystem, and altering the species composition available to the top predators. PY 2004 SO Marine Ecology Progress Series SN 0171-8630 PU Inter-research VL 273 UT 000222691100013 BP 147 EP 161 ID 10816 ER EF