The Fisheries and Marine Ecosystem Model Intercomparison Project – or FISH-MIP – is a network of more than 40 global and regional marine ecosystem modellers from around the world, and we continue to welcome newcomers.
Goal: Bringing together disparate marine
ecosystem models to better understand and forecast the long-term impacts of
climate change on fisheries and marine ecosystems
Our Approach: We use similar earth-system models (ESMs) and scenarios (RCPs) as other ISIMIP sectors, with some adaptations to better represent future oceanic climate change. We also aim to use similar shared socioeconomic pathways (SSPs) based on human population growth and GDP, but again with some adaptations to represent future fishing scenarios in the ocean. See our ISIMIP2a simulation protocol for details.
Our Challenges: Marine ecosystem models use very different basic structures to represent food-web or ecosystem components and the links between them. Ecosystem components can be represented by size classes, functional groups, trophic levels, species groups, and life-history stages, whereas links can be represented by who-eats-whom networks, diet composition or energy transfer. Another challenge is that our models do not all use the same input and output variables. Finally, there are limited observational data for historical runs and model validation, and limited data on spatially resolved fishing effort.
Our Choices: The ISIMIP2a simulation protocol represents the choices we have made in order to compare as many global and regional models as possible. These include common inputs with respect to climate, physical and chemical data (temperature, currents, salinity, pH, oxygen), biological data (e.g. primary production, phyto- and zooplankton), and fisheries data (effort, catch, fisheries mortality) as well as common outputs including fish biomass and catch as well as other ecosystem parameters
Cross-sectoral links: Once FISH-MIP simulation results are available, we will link with other ISIMIP sectors and explore cross-sectoral topics such as biodiversity changes on land and in the sea, changes in global food and animal protein supply, and consequences of land-use changes and nutrient run-off on coastal ecosystems.
For more information: Please contact the sectoral FISH‐MIP coordinators: