salmon hatch in a freshwater stream, migrate to and live several years in the open ocean, and then migrate back to their natal stream to reproduce. what two mechanisms are thought to be involved in these movements?

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28-10-2022
Biology

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salmon hatch in a freshwater stream, migrate to and live several years in the open ocean, and then migrate back to their natal stream to reproduce. what two mechanisms are thought to be involved in these movements?

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potentialsamo potentialsamo · Answer 1 · 2022-10-31T07:35:38-04:00

The two mechanisms are thought to be involved in the movement of salmon when they hatch in a freshwater stream, migrate to and live several years in the open ocean, and then migrate back to their natal stream to reproduce is called "geomagnetic imprinting and olfaction".

What are geomagnetic imprinting and olfaction?

Salmon migrating back to their natal stream after several years is a behavioral pattern where these animals still have the information of the areas where they hatch their eggs and then return to reproduce in the same area after some years due to their imprint on the magnetic field of the freshwater stream

In a summary, salmon also depend on their sense of smell to not only avoid dangers, but to also locate the freshwater stream where they hatched.

Learn more about salmon here: https://brainly.com/question/26746425

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