Fish that can survive saline and freshwater environments can be found in blank. blank are ecosystems found in warm shallow portions of the ocean

The fishes that can thrive in both freshwater and saline environments can be witnessed in estuaries. The locations like inter-tidal zones and estuaries exhibit different levels of salinity, on the basis of season, tide, and weather. This signifies that fish, which thrives in the mentioned region should exhibit the properties to survive in different levels of salinity.  

The coral reefs refer to the ecosystem that is found in shallow, warm parts of the ocean. The coral reefs are the underwater forests, which are full of life. They seem to survive in warm and shallow waters.