Behavioural diversity in fishing—Towards a next generation of fishery models
Despite improved knowledge and stricter regulations, numerous fish stocks remain overharvested. Previous research has shown that fisheries management may fail when the models and assessments used to inform management are based on unrealistic assumptions regarding fishers' decision‐making and responses to policies. Improving the understanding of fisher behaviour requires addressing its diversity and complexity through the integration of social science knowledge into modelling.
In our paper, we review and synthesize state‐of‐the‐art research on both social science's understanding of fisher behaviour and the representation of fisher decision‐making in scientific models. We then develop and experiment with an agent‐based social–ecological fisheries model that formalizes three different fishing styles. Thereby we reflect on the implications of our incorporation of behavioural diversity and contrast it with the predominant assumption in fishery models: fishing practices being driven by rational profit maximizing. We envision a next generation of fisheries models and management that account for social scientific knowledge on individual and collective human behaviours.
Through our agent‐based model, we demonstrate how such an integration is possible and propose a scientific approach for reducing uncertainty based on human behavioural diversity in fisheries. This study serves to lay the foundations for a next generation of social–ecological fishery models that account for human behavioural diversity and social and ecological complexity that are relevant for a realistic assessment and management of fishery sustainability problems.
Research news | 2022-09-29
Recent graduates reflect on what it’s like to do a master’s at the centre
Straight from their final presentations, MSc graduates Bérénice Robaglia and Nora Giertz share insights into their master thesis projects, time at the centre and future plans.
Research news | 2022-09-28
To curb biodiversity loss, development cooperation needs a rethink
Working paper highlights the need for development cooperation to adopt complexity-aware theories of change
Research news | 2022-09-23
Civil society could be the gamechanger for climate policymaking
To make climate policies fair and effective we need to harness the power of civil society, argues centre researcher Thomas Hahn
Research news | 2022-09-19
Turning food by-products into fodder could feed a billion people
Using waste from food production to feed livestock and aquaculture could help feed more people with less
Research news | 2022-09-13
Mutual interests and benefits are no guarantee for increased collaboration
Awareness of interdependencies may not promote, but instead even inhibit, exchange and dialogue between different policy actors
Research news | 2022-09-08
World at risk of passing multiple climate tipping points above 1.5°C global warming
Human emissions have already pushed Earth into the danger zone. Five of sixteen identified tipping point may be triggered at today’s temperatures