The contribution of aquaculture to the global food fish supply for human consumption reached 47% in 2006 (FAO, 2009), an impressive figure, especially in view of the G8 leaders’ consideration of food security after the 2008 food crisis. These figures decreased to 18% and 9% respectively in 2007, underscoring the increasing importance of developing countries are aquaculture production (Figure 18.1). In terms of value, Japan, Norway, Korea, USA and Canada produce 73% of the total in the same year (Figures 18.2 and 18.3).