Main concerns relate to the impacts of human activities on fish stocks and habitats in the marine and fresh waters, and to their consequences for biodiversity and for the supply of marine protein (fish) for human consumption and other uses. The trend towards increased global fish catch has been achieved partly through exploitation of new and/or less valuable species and partly through aquaculture. Though global fish catch seems to have stabilised recently, Illegal, Unreported and Unregulated (IUU) fishing is widespread and hinders the achievement of sustainable fishery management objectives. Within the framework of the FAO Code of Conduct for Responsible Fishing, international efforts are being made to address the issue of illegal, unreported and unregulated (IUU) fishing.