Exploring ecosystem-based approaches in MSP through actor-driven perceptual mapping

This paper introduces an interactive method which aims to map out perspectives on the state of ecosystem-based approaches (EbA) in marine spatial planning (MSP). MSP meets a need for organising the allocation of space to maritime uses. MSP should also control and limit the pressures induced by these activities on marine ecosystems. To evaluate how EbA is actually applied, this research proposes a participatory method to assess the effectiveness of current EbA practices within MSP process using perceptual maps. The mapping focuses on two dimensions: relevance and implementation of a set of 13 key elements of EbA. The method was tested on a sample of marine planners from ongoing MSP processes in northern European sea basins. The study shows that perceptual maps provide four main benefits: participatory, visualization capacity, qualitative and quantitative applicability, and easy to use. This tool has undoubtedly the potential to illustrate the state of integration of EbA in MSP and highlight the priority issues to develop in future plans, and consequently to provide keys to revise marine plans in a way that better takes into account EbA principles. •Evaluation of relevance and implementation of ecosystem approach (EbA) in MSP.•Perceptual mapping allowed an interactive reflection for marine planners.•Demonstrated merits of perceptual mapping methods in MSP evaluation and monitoring.•Heterogeneity of planners approaches to EbA are shown through perceptual mapping.