Development of Sustainable Tuna Processing Industry using System Dynamics Simulation

The increase of the world demand for tuna-processed products needs to be balanced with tuna and tuna-fish like sustainability in their environment. Sustainable management system is needed to increase the production of tuna processing industry by still preserving its sustainability. This problem became more complex, due to the dynamic nature of ecosystems and other processes involved. This study developed a system dynamics model which integrates tuna stocks ecosystem, tuna processing industry development, social economic, and policy sub-models. This model was developed based on historical data, then developed into three development scenarios: without fish-catch limitation, limitation by Sustainable Maximum yield (MSY) and limitation by Maximum economic yield (MEY). System dynamic modeling was conducted to analyze sustainable tuna industry development based on various points of view, to accommodate stakeholder interest. The success of tuna processing industry development, were assessed from the increase of production values, the preservation of tuna and tuna-like fish stock in the environment, and also the improvement of social welfare. Simulations were carried out for 25 years to predict the condition of fish stocks in the future, based on current policies applied. Simulation results show that to develop tuna processing industry while maintaining the stock of tuna in its sustainable conditions, only limiting the fish catch was not enough, the process of integrating industry, socioeconomic and policy made by related institutions were also important.