Big-game fishing, also known as offshore sportfishing, offshore gamefishing or blue-water fishing, is a form of recreational fishing targeting large game fish, usually done on a large body of water such as the ocean. The billfish (swordfish, marlin and sailfish), larger tunas (bluefin, yellowfin and bigeye) and sharks (mako, bull, great white, tiger, hammerhead and other large species) are the main species recognized as big-game fish. Many anglers also consider the Atlantic tarpon also a big-game species.[citation needed] Smaller game fish, such as dolphinfish, wahoo, smaller tuna species such as albacore and skipjack tuna and barracuda are commonly caught as bycatch or taken deliberately for use as live or dead bait and/or chum.[citation needed] (Source: Wikipedia.org, CC BY-SA)