3 Days MESSH 2023

The first`Days MESSH' constitute an international and interdisciplinary scientific event devoted to the `Mathematics for bio-Economics and Sustainability of fiSHeries'.

It will be held on January 2023 in Sète at UMR MARBEC.
The event is part of a project entitled MESSH  mainly funded by the IMPT (Institut des Mathématiques de la Planète Terre), the CNRS
and the RMA (Resource Modeling Association).  The content of these 3 Days `MESSH' in Sète is between a Symposium and a School with keynote lectures planned on every morning. 

Reconciling food security, economic development and biodiversity conservation facing global changes is a key challenge for fisheries worldwide. There is a need of quantitative methods, models and scenarios to support policies addressing this bio-economic challenge. Thus, the 3 Days MESSH aims at advancing the development of models and scenarios for the sustainable management of fisheries and marine ecosystems. In particular, the meeting will focus on four research axis: (i) the mathematics of ecosystem-based fisheries management; (ii) the mathematics of sustainability; (iii) the mathematics of resilience; (iv) the mathematics of governance. Thus, the methodology will draw on both dynamic systems theory, the control of systems, game theory and stochastic approaches.

Keynotes speakers
Martin Smith (Duke University, USA)  - Georges Zaccour (HEC Montreal) - Philippe Cury (IRD, France)

Preliminary program for the 3 days

Wednesday January 25, 2023

Mathematics of ecosystem approach for fisheries

09:00 - 9:30     Opening
                        Luc Doyen (CNRS); Ivar Ekeland (CEREMADE, UBC),
                        Pierre Cardaliaguet (CEREMADE); Laurent Dagorn (IRD,

09:30 - 10:30   Keynote lectures 1 Part I : Ecosystem-based approach
                        for fisheries 

Olivier Maury, Christophe Lett (IRD, MARBEC) -
Slides C Lett

Coffee break 

11:00 - 12:00   Keynote Lecture 1 Part II : Global changes and renewable
                        marine resources

                        Philippe Cury (IRD, MARBEC) - Slides P Cury


13:30 - 14:00  Summary of some contributions to the modeling
                       of a fishery

                       Jean-Christophe Poggiale (Institut Pytheas,
 Aix-Marseille) - Slides JC Poggiale

14:00 - 14:30  Small pelagics fisheries crisis in the the Gulf of Lion:
                       a consequence of ecosystem shift due to climate
Jean Marc Fromentin (IFREMER, MARBEC) -
Slides JM Fromentin

14:30 - 15:00  Assessing the viability of socio-ecosystems subject to
                       fisheries-predators conflicts:
                       a bio-economic modelling approach
Sophie Gourguet (IFREMER, AMURE) -
Slides S Gourguet

Coffee break 

15:30 - 16:00  A MICE model for the small-scale fishery in French
                       Guiana facing global changes
Hélène Gomes, Fabian Blanchard,
                       Abdoul Cissé 
(IFREMER, Un. Guyane)

16:00 - 16:30  Mathematical modeling of natural resource management
                       Ali Moussaoui (Un. Tlemcen)
 - Slides A Massaouil

16:30 - 17:15  Discussion on ecosystem models and complexity

17:30              Wine tasting

Thursday January 26, 2023

Mathematics of criteria for sustainability and resilience "for fisheries"

09:30 - 10:30 Keynote Lecture 2 Part I: Classic models in bioeconomics
                      Martin Smith (Duke Un., USA) -
Slides M Smith

Coffee break 

11:00 - 12:00  Keynote Lecture 2 Part II : Establishing Causality in
                       Coupled Human-Natural Systems:
                       Insights from Numerical Modeling of Fisheries Policy

                       Martin Smith (Duke Un., USA) - 
Slides M Smith


13:30 - 14:00  Speaking for the seventh generation:
                       Introducing intergenerational justice in bioeconomics

                       Rashid Sumaila (UBC, Canada) - 
Slides R Sumaila 
& Ivar Ekeland (CEREMADE, Un. Paris-Dauphine) - 
Slides Y Ekeland

14:00 - 14:30  An eco-viability approach for the management of mixed
                       fisheries under output controls

                       Olivier Thébaud  (IFREMER, AMURE) 
Slides O Thébaud 

14:30 - 15:00  Developing alternatives to resource extraction:
                       A developmental and environmental win-win?

                       Robbert-Jan  Schaap (INRAE, CEEM) Slides RJ Schaap

Coffee break 

16:00 - 16:30  Taking into account habitat in fishery models
                       Mabel Tidball (CEEM, INRAE) Slides M Tidball 

16:30 - 17:00  Resilience management for coastal fisheries facing
                       with global changes and uncertainties

                       Mathieu Cuilleret (CEEM, Montpellier) 

17:00 - 17:45  Discussion 

19:30              Dinner Sete : Le Quai d'en face


Friday January 27, 2023

Mathematics of governance and strategic interactions "for fisheries"

09:30 - 10:30   Keynote Lecture 3 Part I : Governance, strategic
                        interactions and game theory

                        Georges Zaccour (HEC Montreal, GERAD) 

Slides G Zaccour

Coffee break 

11:00 - 12:00   Keynote Lecture 3 Part II : Governance and game theory
                        Georges Zaccour (HEC Montreal, GERAD)


13:30 - 14:00  The tragedy of open ecosystem
                       Luc Doyen (CNRS, CEEM) -
Slides L Doyen

14:00 - 14:30  When fisheries management may increase uncertainty
                       Patrice Guillotreau (MARBEC) 
Slides P Guillotreau 

Coffee Break 

14:30 - 15:30  Perspectives and closing