Illegal, unregulated and unreported (IUU) fishing refers to fishing activities that do not comply with national, regional, or international fisheries conservation or management legislation or measures . IUU fishing is complex and affects many stakeholders from the individual artisanal fisher in national waters, to fishing fleets in Exclusive Economic Zones (EEZ) and the High Seas, to fish processor and fisheries managers in developed and developing countries. Illegal fishing occurs in every ocean in the world, resulting in the loss of individual jobs and income, depletion of existing fish stocks, damage to the marine environment, and loss of state revenue . It affects activities both at sea and onshore, such as shipment, transportation, landing, importation and exportation, sale, and distribution of fish products . IUU fishing also has the potential to reduce the amount of fish available to subsistence fishers and communities who rely on fish as their staple diet. For example in Sierra Leone, fish provides approximately 65% of the protein source consumed by the under-nourished population. Thus people's livelihoods and food security may be seriously threatened by the possibility of losing access to this food source as result of IUU fishing.