1.1. Purpose and patterns

1.1.1. Purpose

The OSMOSE model represents the dynamics of fish communities. It is a multispecies and spatial model which lies on size-based predation, traits-based life history, and individual-based processes. The model aims to explore the functioning of marine ecosystems, the ecosystem effects of fishing and climate changes, the impacts of management measures (changes in fishing pressure and fishing strategies, implementation of marine protected areas).

The OSMOSE model represents the ecosystem dynamics of fish communities in marine ecosystems. It is an individual-based, spatially-explicit multispecies model accounting for explicit trophic interactions. The main characteristics of the model are opportunistic predation based on size and spatial co-occurrence of predators and preys

The aim of the model is to explore the functioning of marine trophic webs, notably in response to perturbations such as fishing or climate change.

1.1.2. Patterns

The model is evaluated by comparing the model outputs with observations of the marine ecosystem. These observations generally include catches, catches at length, biomass, abundance for different species.