fresh tuna (thunnus albacares)

albacares anal anchovies atlantic back belly bigeye blue bluefin body bright common crustaceans dark dorsal driftfish evolved fin finlets fins fish fisheries fishermen flying found lanternfish largest lines long mackerel market mature metallic myctophids oceans pacific pectoral pelagic prey sardines saury scimitars silver smaller species specimens speed squid subtropical suggest tail thunnus tropical tuna vertical waters weights worldwide yellow yellowfin