fish can be in the fresh river

the most beautiful thing when a big fish can be fished.

Fish can be found in almost all large volumes of water, either freshwater, brackish water or saltwater at varying depths from near the surface up to several thousand meters below the surface of the water.

for us to know together, fish are members of poikilotermik vertebrates (cold-blooded) who live in water and breathe with gills.
fish is the most diverse group of vertebrates with a total of more than 27,000 species worldwide.

even many more types of fish that have not been known and still a mystery in science.

Taxonomically, fish belong to the paraphyletic group whose kinship relationship is still debated.