Both tuna and Spanish mackerel belong to the class Osteichthyes, and both belong to the order Perciformes, so they may have some similarities in appearance. However, they are not the same kind of fish and can not be confused with each other. In many ways, tuna and Spanish mackerel are different, and they can be distinguished from each other in many ways.
First, the difference between families: As mentioned above, tuna and Spanish mackerel have the same class and the same purpose, but their families are different. Tuna belongs to the Scombridae family, while Spanish mackerel belongs to the Spanish mackerel family, so they are two different fish.
2. Differences in body size: There are also differences in body size between tuna and Spanish mackerel. There are many kinds of tuna, including large fish, whose body length can reach several meters and weight can reach hundreds of kilograms. In contrast, the size of Spanish mackerel will be slightly smaller, less than 1 meter in length and less than 10 kilograms in weight.
3. Color difference: From the appearance, the body color of tuna and Spanish mackerel is also different. Tuna are mostly blue on the back, with some species darker and others lighter; The color of the back of Spanish mackerel is black.
4. Difference in distribution: The distribution areas of the two are also different. Tuna are distributed in the Pacific Ocean, Indian Ocean and Atlantic Ocean, mainly near the equator, while Spanish mackerel has a narrower distribution, mainly in the northwest of the Pacific Ocean.
5, value and price difference: both can be eaten, but the nutritional value is different, tuna contains more nutrients, higher value. Correspondingly, the price of tuna is much higher than that of Spanish mackerel.
