Salmon encounter much hardships on their journey to spawn. A salmon has to swim the opposite way a stream is flowing, Salmon have to jump up mini waterfalls where hungry brown or black bears are waiting, other fish tend to eat the eggs or the fish that are about to spawn, they risk getting eaten by birds such as gannets and hawks and humans tend to prey on Salmon to eat.
It depends on the species of the salmon, Chinook (King) Salmon spawn between the months of September and October. Coho (Silver) Salmon spawn between the months of October and November. And Atlantic Salmon spawn between the months of November and December.
Salmon will return to their hatching place to spawn. A single group of salmon may travel hundreds of miles back to the river of their birthplace, hopping over waterfalls, swimming upstream until they get to the place where they hatched. They will then mate and lay eggs, beginning into being another cycle of leaving and returning to spawn. This journey is very dangerous, due to bears waiting at the top of waterfalls to catch the returning salmon.
Almost all Salmon swim back to the place they were born themselves to spawn. This requires them to undertake extremely long journey, right up to the stream source where they were born. For reaching there the salmon have to swim upstream ( against the flow of stream), which is quite exhausting for them. Additionally when the salmon swim back for spawning they are hunted enthusiastically by many carnivores like Bears etc. This results in death of many salmon during the journey. When the salmon leave ocean ( where they habit after becoming adults) to go back to freshwater streams to spawn the fish undergoes physical transformation to adapt itself from the saltwater to fresh water conditions. All Pacific ocean salmon die after spawning. Whereas the Atlantic Ocean salmon might return back to ocean after spawning to continue its lifecycle.
They spawn.
A young salmon (or a trout of the salmon family) is called smolt.
salmon
Salmon live in the ocean, but swim up rivers to spawn.
Salmon is one fish that travels up a river to spawn.
because Salmon are swimming upstream to spawn and the bear knows....they can sense them.
Salmon are born in fresh water, migrate to the ocean and then return to the fresh water to spawn. Salmon have the reputation of returning to the same place they were born in order to spawn.
FRS Freshwater Laboratory Faskally Pitlochry Perthshire
Recruit - able to spawn (produce young).