Skipjack (Katsuwonus pelamis) are found mainly in the tropical areas of the Atlantic , Indian and Pacific Oceans. Their geographic limits are 55-60° N and 45-50° S, with the greatest abundance seen in equatorial waters. Five stocks are assessed and managed by the RFMOs: Eastern Atlantic,Western Atlantic, Eastern Pacific, Western Pacific and Indian Ocean.
Skipjack, the smallest of the major commercial tuna species, form both free schools and schools associated with floating objects. They are the principal species associated with FADs and are caught in conjunction with juvenile yellowfin and bigeye tunas.