Question

4) What is migration? Give examples.
5) How salmon fish migrate? Explain.
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Answer 1

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Answer 2

4. The definition of a migration is a movement to another place, often of a large group of people or animals. An example of migration is geese flying south for the winter. ... The seasonal movement of a complete population of animals from one area to another.

5. Anadromous migration:

it is the migration of marine fishes from sea to fresh water for spawning.

Fishes spend most of their life living and feeding in sea.

They only migrate during breeding season to the river for spawning ground.

Eg. Salmon, Hisla, Lamprey etc.

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