The work of NACA focuses on determining priority needs for aquaculture development in the Asia Pacific Region and areas in which technical cooperation between member countries and specialist institutions can make significant contributions to meet those needs. Salmonids, tuna, edible oysters, pearl oysters and prawns accounted for 86% of this value, contributing AUD 884 million in 2012-13. The production value of farmed salmonids fell by 3% between 2011-12 and 2012-13, to AUD 497 million.