Fish migration
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Fish migration is mass relocation by fish from one area or body of water to another. Many types of fish migrate on a regular basis, on time scales ranging from daily to annually or longer, and over di
Many species of salmon are anadromous and can migrate long distances up rivers to spawn
Life cycle of anadromous fish. From a U.S. Government pamphlet. (Click image to enlarge.)
Auklet flock Shumagins 1986
Antennarius striatus
Salmon
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Salmon are any of several commercially important species of euryhaline ray-finned fish from the genera Salmo and Oncorhynchus of the family Salmonidae, native to tributaries of the North Atlantic and
Fish migration
…pelagic fish that move in and out of the exclusive economic zones of different nations, and these are covered differently in the treaty from other fish. Salmon and striped bass are well-known anadromous fish, and freshwater eels are catadromous fish that make large migrations. The bull shark is a euryhaline…
Salmo salar
Pacific salmon leaping at Willamette Falls, Oregon
Life cycle of Pacific salmon
Eggs in different stages of development: In some, only a few cells grow on top of the yolk, in the lower right, the blood vessels surround the yolk, and in the upper left, the black eyes are visible, even the little lens.