Juvenile yellowfin tunas (a.k.a. shibi in Hawai'i and Japan), consist of two species of tunas: yellowfin tuna (Thunnus albacares), above, and bigeye tuna (Thunnus obesus), bottom; note that bigeye tuna has larger eyes, longer pectoral fins and a more robust body. Image taken in Kona, Big Island.
Yellowfin and Bigeye Tuna, Kona, Big Island Juvenile yellowfin tunas (a.k.a. shibi in Hawai'i and Japan), consist of two species of tunas: yellowfin tuna (Thunnus albacares), above, and bigeye tuna (Thunnus obesus), bottom; note that bigeye tuna has larger eyes, longer pectoral fins and a more robust body. Image taken in Kona, Big Island.