The task
The diagram below shows the life cycle of the salmon, from egg to adult fish. Summarise the information by selecting and reporting the main features, and make comparisons where relevant.
| Step | Description |
|---|---|
| 1 | Adult salmon lay eggs among small stones in the upper river, where the current is slow |
| 2 | Eggs remain there for five to six months before hatching into fry, about 3 to 8 cm long |
| 3 | Fry swim downstream to the faster-flowing lower river and live there for around four years |
| 4 | The young fish, now called smolt and 12 to 15 cm long, migrate to the open sea |
| 5 | Smolt spend roughly five years in the ocean, growing into adult salmon of 70 to 76 cm |
| 6 | Adult salmon swim back upstream to the upper river to spawn, and the cycle begins again |