As both the intensity and breadth of human utilisation in the marine environment increases, understanding the natural patterns and processes and associated human interactions in it is complex, but vitally important. As most of the marine environment is unseen, and not conducive to cost-effective observational science, modelling and simulation represents an effective means of developing a better understanding of marine ecosystems by encapsulating and simplifying the representation of our knowledge. For this session contributions are welcome from basic and applied modelling of fisheries and marine natural resources. This includes areas such as integrated socio-bioeconomic modelling , stock assessment, ecosystem modelling, agent-based modelling, and complex system science approaches along with decision support systems, management strategy evaluation, and marine reserve design.