Skipjack Tuna for sale in cans in a local supermarket. Greenpeace are in the area on the first Pacific Leg of the 'Defending Our Oceans' expedition. Yellow Fin and Big Eye tuna stocks in the Central and Western Pacific are destined to be critically over-fished within three years if the relentless fishing of the two Tuna species continues at current rates. Greenpeace are calling for an immediate end to pirate fishing, a 50% reduction in the amount of Pacific tuna caught, and a global network of Marine Reserves.