The rear of the legal Japanese purse-seiner 'Wakaba Maru No8' at sea in Micronesian waters near Kapingamarangi Atoll. 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. The Greenpeace vessel 'MY Esperanza' is on the Pacific Leg of the Greenpeace 'Defending Our Oceans' global expedition.