Dernière mise à jour le : 20 septembre 2016

Ecosystem services assessment and compensation costs for installing seaweed farms


In a global context of promotion and expansion of blue growth initiatives, the development of activities such as aquaculture calls for the assessment of the potential impacts on biodiversity at different levels and associated services. This paper presents an assessment of the potential impact of the installation of seaweed farms on ecosystem services and the induced compensation costs. Biophysical and socioeconomic indicators have been developed for helping decision makers to select the most suitable locations. The approach considers a multi-criteria approach based on Geographical Information Systems (GIS) and Habitat Equivalency Analysis (HEA). The former is used to obtain biophysical ecosystem services and socioeconomic indicators and the latter to evaluate the costs required to compensate the loss of cultural and provisioning ecosystem services. A case-study in the Normand-Breton (Saint Malo) Gulf, France, illustrates this method through the analysis of hypothetical locations of seaweed farms. Results highlight the differences between alternative locations regarding biophysical constraints (in terms of distance and depth), potential risks of conflicts with existing uses, impacts on habitats and the ecosystem services delivered, and compensation costs. This case-study illustrates the flexibility of this approach which can be further adapted to include other indicators in order to deliver integrated information to coastal planners.


keyboard_arrow_right Titre : Ecosystem services assessment and compensation costs for installing seaweed farms
keyboard_arrow_right Type de documentation : Articles
keyboard_arrow_right Auteur(s) personne(s) : Scemama P., Girard S., Frangoudes K., Viard F., Levrel H., Cabral P.
keyboard_arrow_right Date de publication : 20 septembre 2016
keyboard_arrow_right Nombre de pages : 157-165
keyboard_arrow_right Editeur(s) : Elsevier
keyboard_arrow_right Tags thématiques : algue, compensation, écosystème, impact sur l'environnement, étude d'impact sur l'environnement
keyboard_arrow_right Mots-clés libres : Blue growth/Compensation costs/Habitat equivalency analysis/Integrated marine policy/No net loss
keyboard_arrow_right Langue : Anglais
keyboard_arrow_right N° d'édition (ISBN,DOI...) : 10.1016/j.marpol.2016.05.031
keyboard_arrow_right Collection : Marine Policy
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