The puffer fish is a kind of fish, belonging to a kind of bony fish. They also have different species, and the distribution of these species is different, some live in fresh water, some live in the estuary of rivers, that is, brackish water, and some live in salt water. Therefore, we can not generally say that puffer fish is freshwater fish or saltwater fish, which needs to be discussed in detail.
Most puffer fish live in the estuary of rivers, and this fish is also called "soda fish". There are relatively few species of puffer fish distributed in freshwater rivers. The reason why they are called "puffer fish" is that they have migratory characteristics. For example, some puffers living near the Yangtze River come to spawn at certain times and return to their original habitat after the reproduction process is completed. Therefore, many people will think that the puffer fish is like a river fish, so it is named "river".
As mentioned above, the distribution waters of different species of puffer fish are different. Although there are relatively few species of dolphins living in fresh water, there are also some species living in fresh water, such as dark striped Oriental dolphins. In addition, some puffers, which live in salt water or where rivers flow into the sea, will also migrate when the mating season comes. That is to say, they will swim to fresh water to spawn at this time, and then swim back to the original salt water after spawning. Therefore, it can be seen that puffer fish can live in fresh water.
