About Albacore Tuna
Albacore can be distinguished from other tunas by a long pectoral fin that may reach to a point beyond the anal fin. The pectoral fin in juvenile albacore may be similar to that of yellowfin or bigeye. A swimbladder is present, but is poorly developed and not evident in individuals smaller than about 20 inches in length. The liver is striated on the ventral surface, and there are 25-32 gill rakers on the first gill arch. Albacore lack any stripes or spots on the lower flanks and belly. The tail fin has a thin white trailing edge. There is no yellow on the main fins, but the dorsal finlets are yellowish. The anal finlets are silvery or dusky. Common size: 16 to 43 inches.