The diagram below shows the life cycle of a salmon, from egg to adult fish.

The diagram illustrates the stages in the life of the

salmon

, from birth to maturity.

It is clear that

there are six main stages as the

salmon

develops from egg to mature adult. We can

also

see that

salmon

spend time in three distinct locations during the cycle, moving from river to estuary to ocean and

then

back upstream.

Salmon

begin their lives in rivers where the adult fish lay and incubate their eggs. After emerging from eggs, the young

salmon

spend the next stage of their lives being reared in freshwater areas.

Then

, at some point in their development, the fish swim downstream to river estuaries where rearing continues. Following the estuary rearing period, the maturing

salmon

migrate to the ocean, where they eventually become fully grown adults.

Finally

, the adult fish travel back upstream to spawning areas of rivers; here they reproduce and lay their eggs, and the life cycle begins

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