Sardines are a relatively common fish, they can be eaten. Fish can be divided into marine fish and freshwater fish according to their living environment, the former lives in the sea, while the latter lives in fresh water. If sardines are classified in this way, they can be divided into marine fish, because they live in the ocean.
Specifically, sardines are warm-water fish, which means they live in warmer waters, that is, in lower latitudes. In high latitudes, sardines are very rare because of the low temperature. There are many different species of sardines, and their specific distribution areas are also different. For example, there is a species of sardine called "European sardine", which is distributed along the coast of Europe, as the name implies, and also on the northwest coast of Africa near the equator. For example, the small sardine genus contains more than 20 species, which are mainly distributed in the western Pacific Ocean. In the southeast coast of China, there are also some sardines, which belong to the genus Pseudosardines.
The above has been introduced, from the living environment, sardines belong to marine fish, they are living in the ocean. There is a huge difference between the marine environment and the freshwater environment, and the salinity is a big difference. Sardines have lived in the ocean for a long time and have adapted to the marine environment, their body structure and adjustment mechanism are in line with the marine environmental conditions. Therefore, they can not live in fresh water, if suddenly let them live in fresh water, they are likely to die because they can not adapt.
