Faster migrations could mean arriving in the ocean at the wrong time, or exposing salmon to dangers they’d normally avoid.

3. River-dominated estuaries are formed in high river discharge regions where the valley is presently not drowned by the sea. The two subcategories are as follows: a) Tidal river estuaries ...

Under gray skies and a ... but their appearance in the Sandy River is far less consistent. These small, silvery fish spend most of their lives in the ocean, migrating upstream to spawn and ...