Both sardines and tuna belong to fish, and both belong to more common and edible fish. In terms of classification, both of them belong to the class Osteichthyes and belong to the class Osteichthyes. Some people confuse the two and think they are the same kind of fish. In fact, the two are different from the two kinds of fish, in fact, the difference is very large. In order not to confuse them, they can be distinguished in a number of ways.
1, the difference between genera: sardines and tuna are both Osteichthyes, but Osteichthyes contain many different kinds of fish, belonging to the same osteichthyes does not mean that they are the same kind of fish. Specifically, sardines belong to the order Clupeiformes, which belongs to the family Clupeidae; The order to which the tuna belongs is Perciformes, and the family to which it belongs is the tuna family.
2. Size difference: Sardines and tuna are different in size. Sardines are relatively small fish, even adult, their body length is only 15-30 cm only; But the tuna is bigger. Specifically, there are many different species of tuna, and their sizes vary, with some tuna reaching more than 4 meters in length.
3. Appearance difference: The appearance of sardines and tuna is also different. From the shape, sardines are very slender, and tuna, although relatively long, but they are still relatively thick, relatively round, if you look closely, it is easy to distinguish between them.
4. Price difference: Both sardines and tuna are edible fish, but their prices are different. Relatively speaking, the price of tuna will be higher.
