Difference:

1, the price is different

Blue tuna and yellow tuna prices compared to the general price of blue tuna is more expensive than the price of yellow tuna, and the price of different parts is different.

2, the dorsal fin color is different

Blue tuna's dorsal fin color is yellow or blue, while yellow tuna's dorsal fin color is reddish brown.

3, different sizes

Blue tuna can reach a maximum of more than 700 kilograms, while yellow tuna is usually 40-60 kilograms.

4, the head is different

Blue tuna has a larger head, while yellow tuna has a smaller head.

5. Different lateral fins

Yellow tuna has longer fins, while blue tuna has shorter fins.

6, body length is different

Blue tuna is usually about 200 centimeters long and can reach a maximum of 458 centimeters, while the yellow tuna is usually 2 meters long and can reach a maximum of 3 meters.

The tuna family

is a group of marine fishes under the order Scleractinia, order Scombroid, and family Scombridae. The family contains 5 genera and 15 species of tuna, the size of each species varies greatly, the smallest tuna is the round rudder skipjack tuna, its maximum length of 50 centimeters, weight 1.8 kilograms; the largest tuna is the Atlantic bluefin tuna, its maximum length of 4.6 meters, weighing 684 kilograms, the average length of 2 meters, and it is believed that its life expectancy can be as long as 50 years old.

The tuna is tapered at both ends and has a moderate mouth with well-developed teeth. The gill membranes are not attached to the pharyngeal isthmus. The scales are pendulum-shaped and usually small, and the body color is metallic, usually blue and silver. Tuna have dark bands and fins. The dorsal fin consists of 9 to 27 densely arranged fins, and the ventral fin has 6 fins.