Description
Tuna is a marine fish of several species of the family Scombridae, especially the genus Thunnus. These fish are powerful swimmers (ever measured reached 77 km / h). Unlike most fish with white meat, fish meat is pink to dark red. This is because tuna muscle contains more myoglobin than the other fish. Several species of larger tuna, such as blue fin tuna (bluefin tuna), can raise their blood temperature above the water temperature with muscular activity. This causes them to live in cooler water and can survive in diverse conditions. Tuna is a fish that has a high commercial value.
