This is a family of fast-swimming, wide-ranging pelagic fishes who are primarily swift predators of open seas. They have a number of special adaptations for this lifestyle, including a streamlined body form and recessible dorsal and anal fins. Some species are partly endothermic, maintaining a higher body temperature in the swimming muscles. Scombrids often swim in schools and prey on other fishes. Many species are very important as sport fishes and in commercial harvest.
The northern bluefin tuna (Thunnus thynnus) is an oceanic fish, but seasonally comes close to shore and is able to tolerate a wide range of temperatures. They school by size, sometimes together with albacore, yellowfin, bigeye, skipjack...Read More