Fish migration
movement of fishes from one water body to another / From Wikipedia, the free encyclopedia
Many species of fish move from one body of water to another. Many fish do this on a regular basis. If it is done by many fish, it is usually called fish migration. The timespans and distances vary. Some migrations occur everyday, others take months or years. Some migrations are seasonal. Sometimes fish move within the same body of water. They may spend the day near the surface and move to deeper sections at night, for example.
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