Studying the carrying capacity of Mont Saint Michel Bay (France): respective role of the main filter-feeders ...

• Main Authors: Cugier, Philippe, Struski, Caroline, Blanchard, Michel, Mazurié, Joseph, Pouvreau, Stéphane, Olivier, Frédéric
• Format: Conference Object
• Language: unknown
• Published: ASC 2008 - Theme session H 2024
• Subjects: Fisheries and aquaculture; Crassostrea gigas
• Online Access: https://dx.doi.org/10.17895/ices.pub.25243795.v1; https://ices-library.figshare.com/articles/conference_contribution/Studying_the_carrying_capacity_of_Mont_Saint_Michel_Bay_France_respective_role_of_the_main_filter-feeders/25243795/1

No abstracts are to be cited without prior reference to the author.The macrobenthic community in the bay of Mont-Saint-Michel (English Channel, France) is mainly dominated by filter-feeders, including cultivated species (oysters and mussels). The decline in farming production, along with the significant spreading of the invasive slipper limpet Crepidula fornicata (150.000 T), have led scientists and stakeholders to question about the trophic balance between cultivated and wild (native or invasive nonnative) filter-feeders. An ecological model of the bay was developed, coupling a 2D hydro-sedimentary model (SiAM) and biological models for primary production and filter feeder filtration. The filter feeder model includes cultivated (mussels Mytilus edulis and oysters Crassostrea gigas and Ostrea edulis), invasive (Crepidula fornicata) and wild native species (Abra alba, Cerastoderma edule, Glycymeris glycymeris, Lanice conchilega, Macoma balthica, Paphia rhomboides, Sabellaria alveolata, Spisula ovalis). The ...