Task 1 (Graph) - The diagram below shows 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 illustration given provides details about the stages involved in the life cycle of salmon which is a large species of fish. Generally, salmon goes through four phases in its life cycle in three different locations.

The salmon chooses to lay its eggs between the reeds and a small stone as it is the ideal place with slow moving currents where they hatch and remain for a period of approximately 5-6 months till they develop into a fry of 3-8cms in length. On reaching this stage, they swim downstream where the water is fast flowing and spend the next four years there. During this phase they grow to a size of 12- 15cms and are referred to as smolt.

The next phase of its life begins with the migration to the open sea where they spend about 5 years and mature into an adult salmon measuring between 70-76cms. They again move to the upper river for reproduction after reaching this stage.


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