title: The seagrass Posidonia oceanica: Ecosystem services identification and economic evaluation of goods and benefits.
abstract: Posidonia oceanica is a marine angiosperm endemic from the Mediterranean. Despite their protection, its meadows are regressing. The economic valuation of ecosystem services (ES) assesses the contribution of ecosystems to human well-being and may provide local policy makers help in territorial development. To estimate the economic value of P. oceanica seagrass and the meadows that it forms to better account its presence in coastal development, identification and assessment of ES provided are first performed. Then goods and benefits (GB) and their economical values are estimated. In total, 25ES are identified and 7GB are economically evaluated. The economic value of GB provided by P. oceanica ranges between 25.3 million and 45.9 million€/year which means 283-513€/ha/year. Because of the lack of existing available data, only 7GB linked to 11/25ES have been estimated. Despite this overall undervaluation, this study offers a value for coastal development policies to take into account.
authors.affiliation: Andromède Océanologie, 7 place Cassan, 34280 Carnon, France. Electronic address: sylviecampagne@gmail.com.
authors.forename: Carole Sylvie
authors.initials: CS
authors.lastname: Campagne
authors.affiliation: CNRS, UMR LAMETA, 2 Place Viala, 34060 Montpellier, France. Electronic address: jean-michel.salles@supagro.inra.fr.
authors.forename: Jean-Michel
authors.initials: JM
authors.lastname: Salles
authors.affiliation: Agence de l'Eau Rhône-Méditerranée-Corse, Délégation de Marseille, Immeuble le Noailles, 62 La Canebière, 13001 Marseille, France. Electronic address: pierre.boissery@eaurmc.fr.
authors.forename: Pierre
authors.initials: P
authors.lastname: Boissery
authors.affiliation: Andromède Océanologie, 7 place Cassan, 34280 Carnon, France; Université de Montpellier 2, Institut des Sciences de l'Evolution (ISEM), UMR 5554 UM2, CNRS, IRD, Campus de l'Université de Montpellier 2, place Eugène Bataillon, 34095 Montpellier cedex 5, France. Electronic address: julie.deter@andromede-ocean.com.
authors.forename: Julie
authors.initials: J
authors.lastname: Deter
mesh_terms: D035961:Alismatales; D004463:Ecology / Q000191:economics*; D017753:Ecosystem; D008522:Mediterranean Sea
keywords: Economic valuation; Ecosystem services; Goods and benefits; Marine vegetation; Posidonia oceanica; Seagrass