Cyprum itidem insulam procul a continenti discretam et portuosam inter municipia crebra urbes duae faciunt claram Salamis et Paphus, altera Iovis delubris altera Veneris templo insignis. tanta autem tamque multiplici fertilitate abundat rerum omnium eadem Cyprus ut nullius externi indigens adminiculi indigenis viribus a fundamento ipso carinae ad supremos usque carbasos aedificet onerariam navem omnibusque armamentis instructam mari committat.

Emensis itaque difficultatibus multis et nive obrutis callibus plurimis ubi prope Rauracum ventum est ad supercilia fluminis Rheni, resistente multitudine Alamanna pontem suspendere navium conpage Romani vi nimia vetabantur ritu grandinis undique convolantibus telis, et cum id inpossibile videretur, imperator cogitationibus magnis attonitus, quid capesseret ambigebat.

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  • The project

Date: 2012-2015

The work presented here has been developed in six case studies of the VALMER Interreg 4A Channel project (2012-2015).

Coordination by M. Philippe, J. Ballé-Béganton and D. Bailly
based on written contributions from K. Dedieu, F. Morisseau, R. Mongruel and E. Thiébaut

Site description

Focus of study

Two main goals for the evaluation were identified: to provide an initial diagnosis of the marine ecosystem service and to anticipate future changes particularly in terms of ensuring continued participation and dealing with future conflicts.

The Norman-Breton Gulf is a proposed French Marine Protected Area. New elements are needed to feed the reflexion about the management of this large area.

Key stakeholders and their involvement

The case study was led by the French Marine Protected Area management team with the participation of about twenty local stakeholders from state services, fisheries and shellfish farming representatives, recreational groups, industries (Marines renewable and extraction), Marine Protected Area managers. These stakeholders were consulted all along the scenario exercise.

Manuelle Philippe/ UBO. Links between the Ecosystem Services Assessment and the scenarios

Approach for Ecosystem Services Assessment

Several approaches were used to evaluate ecosystem services in the Golfe Normand-Breton: ecological, GIS and economic approaches. Moreover, involvement of stakeholders was achieved during the scenarios building process.

Summary of main results

The ecological approach produced a map of marine benthic habitats and two matrixes identifying the relations between habitats/functions and habitats/ecosystem services.

The GIS approach used the INVEST model (Natural Capital Project) to build a map of cumulative risk on benthic habitat that was used to calculate their vulnerability to deliver ecosystem services and several scenarios of development or conservation.

An accounting approach allowed to describe and to quantify the links between human activities and ecosystem services separating activities that aim to preserve and use ecosystem services.

Finally a level of sustainable yield was calculated for nine major marine species of Golfe Normand-Breton from historical dataset and the economical vulnerability of fisheries assessed.

Use of results

The scenarios developed and ecosystem services assessments were disseminated through brochures to stakeholders and concerned institutions. They were also presented in a more interactive way during the restitution seminar.

The scenario exercise has been a great opportunity for the Marine Protected Area management team to better understand stakeholder’s perceptions in relation to public policies, activities planning at different scales but scenario development is a very time consuming process.

Examples of lessons learned

It was difficult to integrate ecosystem services valuations into the scenarios because of the non dynamicnature of the tools developed for the initial assessment. The different approaches developed for the initial assessment provided very diverse and interesting results but not straightforward enough to be used in decision making.

Photo: © Pixabay | European Space Agency | Ludovic Lagadec