Le saumon face au changement climatique

International audienc

L'adaptation au changement climatique des populations exploitées de saumon

National audienc

Conditionnement des stratégies d'histoire de vie et mécanismes adaptatifs à court terme : approche intégrée par capture-marquage-recapture et application au saumon atlantique (Salmo salar) en condition naturelle

Diplôme : Dr. d'Universit

Investigating the ecological impacts of salmonid invasions: a meta-analytic approach at the global scale

International audienc

Adaptation et persistance des populations de saumon face au changement climatique

International audienc

Can we predict the fate of Atlantic salmon populations in the face of climate change?

International audienceAtlantic salmon Salmo salar is the subject of many management actions aiming at their conservation. There is a strong demand, expressed by a diversity of local to international bodies for assessing the consequences of climate change for this species relative to the conflicting objectives of both conservation and exploitation. However, our predictive ability is still limited by the complexity and uncertainty of current and future environments, complexity of the life cycle and especially by the challenges of teasing apart evolutionary change from more 'plastic' responses to environmental perturbation. I discuss the importance and complementarity of experimental research, long-term monitoring in natura and modeling approaches. Importantly, life cycle models provide a powerful tool for disentangling eco-evolutionary processes and investigating interactive, synergistic effects among multiple factors in order to better understand the eco-evolutionary responses of populations in the face of various scenarios of climate change. I will present a demo-genetic Individual-based model which is designed to investigate the demogenetic consequences of environmental change scenarios on an exploited population of Atlantic salmon. Without omitting its limits, I show how this approach allows to synthesize knowledge and to identify its gaps

Can we predict the fate of Atlantic salmon populations in the face of climate change?

International audienceAtlantic salmon Salmo salar is the subject of many management actions aiming at their conservation. There is a strong demand, expressed by a diversity of local to international bodies for assessing the consequences of climate change for this species relative to the conflicting objectives of both conservation and exploitation. However, our predictive ability is still limited by the complexity and uncertainty of current and future environments, complexity of the life cycle and especially by the challenges of teasing apart evolutionary change from more 'plastic' responses to environmental perturbation. I discuss the importance and complementarity of experimental research, long-term monitoring in natura and modeling approaches. Importantly, life cycle models provide a powerful tool for disentangling eco-evolutionary processes and investigating interactive, synergistic effects among multiple factors in order to better understand the eco-evolutionary responses of populations in the face of various scenarios of climate change. I will present a demo-genetic Individual-based model which is designed to investigate the demogenetic consequences of environmental change scenarios on an exploited population of Atlantic salmon. Without omitting its limits, I show how this approach allows to synthesize knowledge and to identify its gaps

Adaptation et persistance du saumon face au changement climatique

International audienc