School of fish around a fish aggregation device or FAD in the Western Pacific. Oceans Campaigner Karli Thomas inspects and dives around the FAD. In addition to a total ban on purse seine fishing using FADs, Greenpeace is calling on members of the WCPFC to reduce by half the regional tuna catches and close all four Pacific high seas pockets from fishing. These measures are needed to save the remaining commercially valuable tuna stocks from collapse.