The Western and Eastern Skipjack Fisheries (WSF and ESF) extend throughout the areas of the Western Tuna and Billfish Fishery (WTBF) and the Eastern Tuna and Billfish Fishery (ETBF), excluding Area E (Cairns/Townsville Restricted Area) of the ETBF. These fisheries also extend to high seas areas of the Indian Ocean and western and central Pacific Ocean.