System Dynamics Model
The System Dynamics Model that is being developed as part of SURIMI will be a powerful tool for exploring the socio-economic aspects of fisheries, especially in data-limited situations. By focusing on the essential dynamics of fishery systems, this model will simplify complex processes such as the balance between fish stock growth and harvesting rates, while still capturing critical interactions like the impact of market demand on fishing effort. Its primary goal will be to understand how different parts of the system, including ecological components like fish populations and socio-economic elements like fishing communities, are connected and how they change over time.
Real World Applications of the System Dynamics Model
System dynamics models will use interconnected feedback loops to understand fisheries systems and illustrate relationships that influence behaviour. For example, a reinforcement loop will show how increased fishing effort depletes fish populations, making catches harder and prompting more effort, creating a cycle of decline. In contrast, a balancing loop might demonstrate how fishing regulations, like quotas, reduce fishing pressure to allow stocks to recover.
The model also aims to track stocks and flows, such as fish populations and financial revenues over time. It will evaluate how a fisher’s income is influenced by fish sales and operating costs. By analysing these dynamics, the system dynamics model will provide vital insights into the ecological and economic sustainability of fisheries, supporting better long-term resource management decisions.

System Dynamics Modelling within SURIMI
In SURIMI, this approach plays a crucial role in bridging gaps between ecological and economic perspectives. By offering a clear, accessible way to simulate socio-economic dynamics, the System Dynamics Model will help researchers and policymakers predict outcomes and craft strategies that balance marine conservation with the livelihoods of fishing communities. This integration will ensure that even with limited data, SURIMI can deliver practical tools to guide sustainable fisheries management.
The SURIMI Toolbox
All SURIMI models, such as the System Dynamics Model, will seamlessly integrate into the EU DTO, forming a comprehensive framework that combines social, ecological, and economic perspectives. These models will support data-driven decision-making for sustainable ocean management and resilient marine communities. While aligned with the EU DTO, they can also operate independently, extending their benefits beyond the framework.
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