Description & Behavior
The yellowfin tuna, Thunnus albacares (Bonnaterre, 1788), is a member of the family Scombridae which includes: albacore, bonito, mackerel and tuna. Yellowfin tuna reach a total length of 2.08 m and a maximum weight of 200 kg. The average life span is 8 years. They have very long dorsal and anal fins, and moderately long pectoral fins.
Yellowfin tuna are black to dark blue in color with a yellow or silver belly. Their dorsal fin, anal fins and finlets are bright yellow.
Yellowfin tuna are extremely fast swimmers reaching speeds up to 80 kph. They are able to streamline their body for faster swimming by folding their fins into special indentations.