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Site institutionnel d'Agrocampus OuestAGROCAMPUS OUEST

Pôle halieutique

Fisheries and Aquatic Sciences Center

Olmos Maxime
maxime.olmos@agrocampus-ouest.fr
Tel : +33 2 23 48 54 56


Ph.D. Student
Écologie halieutique


Activities

Current Position

Ph.D. Student, Ecology and Ecosystem Health research unit, Fisheries and Aquatic Ecology research group

Research

Thesis
Impact of ecosystem changes on fish population: a demographic modelling approach applied to Atlantic salmon at a biogeographic scale

Current Research Topics
As a Ph.D candidate, I am working with Dr Etienne Rivot at the UMR ESE, Rennes (France), and with Dr Etienne Prevost and Marie Nevoux at INRA (France).

My Ph.D thesis focused on understanding how anthropic pressures and climate changes impact aquatic ecosystems and associated resources and services.
In particular, the research project aims at investigating the population dynamics of Atlantic salmon (Salmo salar) and variability of demographic traits in time and space at biogeographical scale. Considering a very large scale approach allows to investigate the effect of multiple stressors that are susceptible to impact populations at various life stages in their life cycles, such as large scale environmental forcing during the marine phase and sequential fishery that affect populations or population aggregates at various scales.
The thesis investigates the following questions:
  • What are the most impacted life history traits (e.g., survival, age at maturity), and at which spatial scales do the changes occur?
  • What is the relative influence of various stressors on those changes? Are the changes a response to recent changes or shifts in marine ecosystems?
  • How do the changes affect management considerations?

  • The methodological approach used relies on Hierarchical Bayesian Models which allow for :
  • Embedding complex demographic/population dynamics models within statistical approach
  • Assimilating multiple sources of information to test for various hypotheses on key ecological mechanisms, estimate parameters and quantify uncertainties.
Participation to the projects of the research unit
Selected recent publications
OLMOS, M. MASSIOT-GRANIER, F. PREVOST, E. CHAPUT, G. BRADBURY, I. R. NEVOUX, M. RIVOT, E., 2019. Evidence for spatial coherence in time trends of marine life history traits of Atlantic salmon in the North Atlantic. Fish and FIsheries

OLMOS, M. QUEROUE, M. NEVOUX, M. PREVOST, E. RIVOT, E., 2018. Using Life Cycle Model to assess fish stocks in a complex environment. The Atlantic Salmon case study. SFEcologie, International Conference on Ecological Sciences. Symposium Ecological Models in Fisheries Sciences: From knowledge to management. 22-25 October 2018, Rennes, France

OLMOS, M. PREVOST, E. CHAPUT, G. NEVOUX, M. RIVOT, E., 2018. A Bayesian hierarchical model to unravel the spatial covariations in the response of Atlantic salmon populations to environmentally-driven changes in the North Atlantic Ocean. 6th International Statistical Ecology Conference ISEC 2018, University of Saint Andrews, Scotland, UK, 2 July – 6 July 2018. Session theme “Fisheries”

OLMOS, M. MASSIOT-GRANIER, F. CHAPUT, G. PREVOST, E. NEVOUX, M. RIVOT, E., 2017. Une réponse commune des populations de saumon Atlantique (salmo salar) aux changements globaux : une approche de modélisation hiérarchique bayésienne du cycle de vie. Colloque "Pêches et Changements Globaux", Association Française d'Halieutique, Nantes, 28-30 juin 2017

OLMOS, M. MASSIOT-GRANIER, F. CHAPUT, G. PREVOST, E. NEVOUX, M. RIVOT, E., 2017. Evidence for synchronous changes in marine survival and age at maturity across Atlantic salmon stock units in the Atlantic Ocean: an approach using integrated Bayesian life cycle modelling. WKCCISAL - Workshop on Potential Impacts of Climate Change on Atlantic Salmon Stock Dynamics. ICES, Copenhagen, Denmark, 27–28 March 2017

OLMOS, M. MASSIOT-GRANIER, F. PREVOST, E. NEVOUX, M. CHAPUT, G. RIVOT, E., 2016. A Bayesian life cycle model to unravel changes in the marine productivity of Atlantic salmon populations in the North Atlantic ocean. ICES ASC 2016 Theme session D. Ecosystem changes and impacts on diadromous and marine species productivity. Sept. 19th-23th 2016, Riga, Latvia

MASSIOT-GRANIER, F. BRET, V. OLMOS, M. PREVOST, E. CHAPUT, G. RIVOT, E., 2016. Meta-analysis of freshwater productivity of Atlantic salmon population in the North Atlantic ocean. ICES ASC 2016 Theme session D. Ecosystem changes and impacts on diadromous and marine species productivity. Sept. 19th-23th 2016, Riga, Latvia

OLMOS, M. MASSIOT-GRANIER, F. CHAPUT, G. PREVOST, E. RIVOT, E., 2015. Analyser le fonctionnement des multiples populations pour mettre en évidence les empreintes des changements écosystémiques. «Les écosystèmes marins dans tous leurs états», 12ème Forum de l'Association Française d'Halieutique, 1-3 juillet 2015, Montpellier

OLMOS, M. MASSIOT-GRANIER, F. PREVOST, E. CHAPUT, G. RIVOT, E., 2016. A Bayesian hierarchical modelling approach to unravel large scale patterns of decline in the marine productivity of A. salmon population in the North Atlantic Ocean. International Statistical Ecology Conference ISEC 2016, University of Washington, Seattle, USA – 28th June – 1st July 2016

OLMOS, M., 2015. Decline in the abundance of Atlantic salmon population in the North Atlantic: Rethinking stock assessment models and exploring ecological mechanisms. Mémoire de fin d'étude du Diplôme d'ingénieur agronome, Spécialisation Halieutique. Agrocampus Ouest


Accès à la totalité des publications ...
OLMOS, M. MASSIOT-GRANIER, F. PREVOST, E. CHAPUT, G. BRADBURY, I. R. NEVOUX, M. RIVOT, E., 2019. Evidence for spatial coherence in time trends of marine life history traits of Atlantic salmon in the North Atlantic. Fish and FIsheries

OLMOS, M. QUEROUE, M. NEVOUX, M. PREVOST, E. RIVOT, E., 2018. Using Life Cycle Model to assess fish stocks in a complex environment. The Atlantic Salmon case study. SFEcologie, International Conference on Ecological Sciences. Symposium Ecological Models in Fisheries Sciences: From knowledge to management. 22-25 October 2018, Rennes, France

OLMOS, M. PREVOST, E. CHAPUT, G. NEVOUX, M. RIVOT, E., 2018. A Bayesian hierarchical model to unravel the spatial covariations in the response of Atlantic salmon populations to environmentally-driven changes in the North Atlantic Ocean. 6th International Statistical Ecology Conference ISEC 2018, University of Saint Andrews, Scotland, UK, 2 July – 6 July 2018. Session theme “Fisheries”

OLMOS, M. MASSIOT-GRANIER, F. CHAPUT, G. PREVOST, E. NEVOUX, M. RIVOT, E., 2017. Une réponse commune des populations de saumon Atlantique (salmo salar) aux changements globaux : une approche de modélisation hiérarchique bayésienne du cycle de vie. Colloque "Pêches et Changements Globaux", Association Française d'Halieutique, Nantes, 28-30 juin 2017

OLMOS, M. MASSIOT-GRANIER, F. CHAPUT, G. PREVOST, E. NEVOUX, M. RIVOT, E., 2017. Evidence for synchronous changes in marine survival and age at maturity across Atlantic salmon stock units in the Atlantic Ocean: an approach using integrated Bayesian life cycle modelling. WKCCISAL - Workshop on Potential Impacts of Climate Change on Atlantic Salmon Stock Dynamics. ICES, Copenhagen, Denmark, 27–28 March 2017

OLMOS, M. MASSIOT-GRANIER, F. PREVOST, E. NEVOUX, M. CHAPUT, G. RIVOT, E., 2016. A Bayesian life cycle model to unravel changes in the marine productivity of Atlantic salmon populations in the North Atlantic ocean. ICES ASC 2016 Theme session D. Ecosystem changes and impacts on diadromous and marine species productivity. Sept. 19th-23th 2016, Riga, Latvia

MASSIOT-GRANIER, F. BRET, V. OLMOS, M. PREVOST, E. CHAPUT, G. RIVOT, E., 2016. Meta-analysis of freshwater productivity of Atlantic salmon population in the North Atlantic ocean. ICES ASC 2016 Theme session D. Ecosystem changes and impacts on diadromous and marine species productivity. Sept. 19th-23th 2016, Riga, Latvia

OLMOS, M. MASSIOT-GRANIER, F. CHAPUT, G. PREVOST, E. RIVOT, E., 2015. Analyser le fonctionnement des multiples populations pour mettre en évidence les empreintes des changements écosystémiques. «Les écosystèmes marins dans tous leurs états», 12ème Forum de l'Association Française d'Halieutique, 1-3 juillet 2015, Montpellier

OLMOS, M. MASSIOT-GRANIER, F. PREVOST, E. CHAPUT, G. RIVOT, E., 2016. A Bayesian hierarchical modelling approach to unravel large scale patterns of decline in the marine productivity of A. salmon population in the North Atlantic Ocean. International Statistical Ecology Conference ISEC 2016, University of Washington, Seattle, USA – 28th June – 1st July 2016

OLMOS, M., 2015. Decline in the abundance of Atlantic salmon population in the North Atlantic: Rethinking stock assessment models and exploring ecological mechanisms. Mémoire de fin d'étude du Diplôme d'ingénieur agronome, Spécialisation Halieutique. Agrocampus Ouest

OLMOS, M., 2019. Réponse des populations de poissons aux changements de l'écosystème : Une approche par modélisation démographique appliquée au cas du Saumon atlantique à l'échelle de son aire de distribution. Thèse de Doctorat de l'Université de Rennes 1

RIVOT, E. OLMOS, M. CHAPUT, G. PREVOST, E., 2019. Hierarchical life cycle model for Atlantic salmon stock assessment at the North Atlantic basin scale. ICES WGNAS, Working Paper 2019/26, Bergen, Norway, March 26 - April 5, 2019. ICES/CIEM n°N°Working Paper 2019/26

PISTEVOS, J. C. A. NAGELKERKEN, I. ROSSI, T. OLMOS, M. CONNELL, S. D., 2015. Ocean acidification and global warming impair shark hunting behaviour and growth. Scientific Reports n°5? 16293


Création et mise à jour du site Catherine Le Penven et Jérôme Guitton