1. ODD description

The present section contains all the necessary information and guidelines to help understand the principles and assumptions of the OSMOSE model, apply it to a specific case study and run simulations for addressing specific issues. The OSMOSE model aims at exploring fish community dynamics and the ecosystem effects of fishing and climate change. It is an Individual-based model (IBM) which focuses on fish species and their trophic interactions ([Shin and Cury, 2001, Shin and Cury, 2004]).

The model description in this section follows the ODD (“Overview”, “Design concept” and “Details”) protocol for describing individual- or agent-based models ([Grimm et al., 2010, Grimm et al., 2020]).

Contents:

• 1.1. Purpose and patterns
• 1.2. Entities, state variables, and scales
• 1.3. Process overview and scheduling
• 1.4. Design concepts
• 1.5. Initialization
• 1.6. Input data
• 1.7. Submodels