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

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

fry

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, smolts, and adult salmon.

However

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

last

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takes place in the sea.

First,

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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

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, the

fry

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

Next,

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these

fry

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swim to the lower river which has fast flowing current and

fry

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take 4 years period to become

smolt

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. The

smolt

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measure 12-15 cm roughly.

Finally

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,

smolt

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heads to the open sea and they have grown into adult

smolt

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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.