Project | UMR DECOD : Dynamique et durabilité des écosystèmes

RESIPEL

	Quels facteurs de RESIlience pour le socio-écosystème petits PELalgiques	Timeframe : 2026 - 2030 Local Budget: 867 339 € Coordinator: Maxime OLMOS Contact: Maxime OLMOS Keywords : Adaptation / Aire de répartition géographique / Bio-économie / cascades trophiques / Comportements humains / Connectivité / Cycle de vie / Dérive larvaire / Dynamique des populations / Ecologie spatiale / Evaluation / Evolution adaptative / Gestion intégrée / Interactions trophiques / Migration / Multi-stress / Socio-écosystèmes / Stress abiotique / Stress biotique / Traits d’histoire de vie / Traits phénotypiques / Age à maturité / Changement climatique / Communautés / Composition biochimique corporelle / Ecosystèmes / Fécondité / Flotilles / Pêche / Poissons / Populations / Survie / Taille à maturité / Taux de croissance corporelle / Zooplancton / Analyses de séries temporelles / Contenus stomacaux / Modélisation individu-centrée / Modélisation mécaniste / Modélisation statistique / Statistiques multivariées

Marine socio-ecosystems (M-SES) provide human societies with food and essential nutrients, while also contributing to climate regulation and the development of economic, social, and cultural activities. In a context of global change, it has become urgent to strengthen the resilience of MSEs, that is, their capacity to absorb disturbances induced by global changes and, over time, recover a desirable functional state.

Small pelagic fish (SPF) play a key role in the functioning of marine ecosystems, but they are highly sensitive to environmental fluctuations. These SPF contribute to food security due to their richness in essential nutrients. However, the entire socio-ecosystem dependent on SPF (SPF-SES) is facing numerous disturbances, particularly those resulting from climate change.

The DEFIPEL project (2019–2024) identified these disturbances and improve the description of the structure of the different components of the SPF socio-ecosystem. Building on DEFIPEL’s results, the RESIPEL project aims to initiate the second step toward the resilience of this SPF socio-ecosystem by studying its capacity to absorb disturbances and adapt to them. The role of process seasonality in interactions within the SPF socio-ecosystem will be further investigated, and its importance for resilience will be assessed.

RESIPEL will seek to (i) understand the ecological and socio-economic factors that support the sustainability and resilience of SPF socio-ecosystems, (ii) project their evolution under different climate change and fisheries-sector modification scenarios, and (iii) operationalize management tools to make this socio-ecosystem less vulnerable to current and future changes. The RESIPEL project will adopt an interdisciplinary approach to characterize the determinants of resilience in SPF socio-ecosystems by interconnecting the results produced by thirteen tasks across six phases that constitute pathways toward resilience.