What does anadromous mean?

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Explore the Academic Decathlon Science Test. Practice with quizzes and in-depth explanations to boost your exam readiness and improve your scores.

Multiple Choice

What does anadromous mean?

Explanation:
Anadromous describes fish that migrate from saltwater to freshwater to spawn. They spend their early life growing in the ocean, then swim back into rivers or streams to reproduce. A well-known example is salmon: they hatch in rivers, mature in the ocean, and return to freshwater to lay eggs. This movement pattern contrasts with catadromous species, which move from freshwater to saltwater to spawn.

Anadromous describes fish that migrate from saltwater to freshwater to spawn. They spend their early life growing in the ocean, then swim back into rivers or streams to reproduce. A well-known example is salmon: they hatch in rivers, mature in the ocean, and return to freshwater to lay eggs. This movement pattern contrasts with catadromous species, which move from freshwater to saltwater to spawn.

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