a wide range of species are fanned including fish crustaceans and molluscs bivalves and aquatic plants seaweed in oecd countries produced about million tonnes including aquatic plants of which diadromous fish eg salmon contributed followed by molluscs aquatic plants marine fishes freshwater fishes and crustaceans source fisheries and aquaculture information and statistics service fao table the oecdfao agriculture outlook expects world fisheries production to expand to a total of million tonnes by which includes million tonnes of fish for reduction to meal and oil of which million tonnes will come from aquaculture these projections seem to be rather conservative compared to the increases that have taken place over the past two decades