You should spend about 40 minutes on this task.
The diagram shows the life cycle of a salmon
Give reasons for your answer and include any relevant examples from your own knowledge or experience.
Write at least 250 words.
The picture illustrates the different stages in the life of a salmon.
Overall, there are 5 main stages in the life cycle of a salmon, beginning with spawning, when eggs are laid, and ending with the adult salmon.
At the first stage, the adult salmon spawn. Then, the eggs develop during a period of incubation and the young fish emerge. At the third stage, the young fish undergo a period of rearing, part of the time in the fresh water where the eggs are laid, and part of the time in an estuary, where fresh water and sea water meet.
Next, the salmon migrate to the ocean, where they continue to grow and mature for a period, in areas where this continuation of the rearing process takes place. At the final stage, when the fish have grown and become mature, they are ready to migrate to spawning areas. The whole cycle is then ready to begin again.