Question: what is the difference between a bluefin and yellowfin tuna?
Answer: Also the second pectoral fin on yellowfin tuna are elongated and bright yellow while those on bluefin tuna are shorter and a gray/yellow mix; 3) Fin Length - Pectoral fins on yellowfin tuna are longer and typically reach the second dorsal fin while those of bluefin tuna are much shorter; 4) Tails - Bluefin tuna tend to ...