The diagrams below show the life cycle of a large fish called the Salman

The given diagram explain the life cycle of fish species is called Salman.
Salman eggs are laid in the upper river, which is slow moving.Among small stones and reeds. It is around five to six months. They hatched into the first stage fish Fry, they migrate the fast-moving lower river. It is 3 to 8 cm in length in about four years, then fish fry develops to the next stage Smolt,and migrate into the open sea.
The Smolt ,which is 12 to 50 cm in length mature into adult Salman of 72 to 76 cm in almost 5 years, which then adults Salman travels back to the upper river for lay eggs.
Overall it's show the Salman develops in three stages Fry, Smolt and adult Salman. During in this process their size and habitat change.