The diagrams below show the life cycle of a species of large fish called the salmon. Summarise the information by selecting and reporting the main features, and make comparisons where relevant.

The diagrams present the life cycle of the

salmon

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which is a large fish species.

Overall

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,

salmon

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have an average lifespan of nine years and their life cycle consists of four main stages: egg, fry, smolt and adult.

While

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in the first three

stages

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salmon

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live in freshwater, in the

last

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stage they place in saline water. The life cycle of

salmon

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begins when eggs are laid among small stones at the base of reeds

in

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on

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the upper side of the river, where the waves are slow. After approximately 5 to 6 months, fry which measures 3-8 cm long can be seen in the water.

Then

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the fry sail to the lower and faster side of the river. After growing and feeding here for almost 4 years, they reach 12 to 15 centimetres and are considered as smolt. they

then

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head to the ocean where they grow into adult

salmon

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which

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70 to 76 centimetres. They spend around 5 years over there, after which they migrate upstream to the birthplace to spawn. The entire journey is repeated all over again.