The diagram below shows the life cycle of a species of large fish called salmon

The charts illustrate the life cycle of the salmon which is a large fish species.

Overall

, the single life cycle takes nine years to complete including four main stages: eggs,

fry

, smolts, and adult salmon.

However

, the first three steps occur in the fresh water and the

last

takes place in the sea.

First,

the adult salmon are laid their eggs among small stones at the base of reeds in the upper river where the current is slowly moving.

Then

, the

fry

can be seen after five to six months approximately and they are 3-8 cm long.

Next,

these

fry

swim to the lower river which has fast flowing current and

fry

take 4 years period to become

smolt

. The

smolt

measure 12-15 cm roughly.

Finally

,

smolt

heads to the open sea and they have grown into adult

smolt

70-76 cm long when taking 5 years approximately. After that, when they reach spawning. they swim to the river and the life cycle repeats all over again.