The diagrams depict the life cycle of salmon, which is a large fish species.
Overall, it is clear that, Salmon has an average life span of nine years and his life cycle consists of four main stages : egg, fry, molt and adult. While the first three stages occur in freshwater, the last one takes place in saline water.
In the beginning, the life cycle begins when salmon eggs are laid among small stones at the base of reeds in the upper part of a river. After approximately 5 to 6 months, fry which measures 3 to 8 centimeters long can be seen in the river. After growing and feeding there for 12 to 15 centimeters, they are called molts.
After that, they move to the ocean where they mature into an adult salmon. which averages 70 to 76 centimeters long. They spent around 5 years there. After which, they migrate upstream to their birthplace to spawn and the entire journey is repeated all over again.