given the natural limits to capture fisheries production it is clear that aquaculture will have to meet most of the future increase in demand for fish bostock et al in world fisheries and aquaculture production is projected to be about million tonnes which is a increase from the average level for the oecdfao agriculture outlook projects that by compared to a baseline of aquaculture will grow by compared to growth of capture fisheries oecdfao in many places this is for good reason current evidence indicates that more than a quarter of fish stocks are overfished with the rest increasingly being fished at their maximum capacity figure this indicates that the pressure placed on fish stocks is significant and sometimes excessive