Tuna and tuna are the same fish. Tuna is an alias for tuna. Because tuna is called differently in different countries. For example, tuna is called "tuna" in English, and after being transliterated into China, it becomes tuna. In addition, in Japan, tuna is called "tuna". However, "tuna" also appeared in Chinese classics, but it didn't mean tuna. In recent years, due to the relatively developed tuna industry, the name of tuna will become more common.

Tuna and salmon are not the same fish. Although their shapes are similar, they are quite different in species, distribution range and meat quality.

1. Different species: Tuna belongs to Perciformes and Mackerelidae, while salmon belongs to Salmoniformes and Salmonidae. There are great differences in varieties between the two, so they are fundamentally different.

2, different distribution range: Salmon like to live in colder water temperature, so they are all distributed in the northern Pacific Ocean. Tuna likes to live in the sea area with high water temperature, and is distributed in the Pacific Ocean, Indian Ocean and Atlantic Ocean.

3. Different meat quality: Compared with salmon, tuna has more delicious meat quality, and tuna has less fat content, so it tastes better.