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salamon are born in fresh water, migrate to the ocean, then return to fresh water to reproduce. However, there are rare species that can only survive in fresh water habitats. folklore has it that the fish return to the exact spot where they were born to spawn; tracking studies have shown this to be true but the nature of how this memory works has long been debated.
What else can I help you with?
Whenthe salmon die after spawning the river or crowded by these fish how does this effect the ecosystem?
Salmon die after spawning due to exhaustion and malnutrition. As most salmon are sea fish, the environment of the creeks and streams are poisonous to them and they are unable to feed as they swim up stream. By the time they get to the spawning grounds they have used up their stores of energy and cannot get back to the sea. - got this from someone else not me :)
Why did the pacific coast natives eat salmon?
The northwest Indian tribes ate salmon because it was simply an available food .Just as the Sioux ate the buffalo, the salmon to the northwest tribes was the most available food source. They also would eat berries and plants native to the region. They also hunted animals indigenous to the region. The native peoples of all tribes adapted their eating habits to what was available.
What three things most directly affects carrying capacity?
Food, space, and water
In human the organ the most directly regulates the concentration of the water in the blood?
The kidneys are the organs that directly regulate the concentration of water in the blood by filtering excess water and solutes from the blood to form urine. They also help maintain proper balance of electrolytes in the body by reabsorbing or excreting them as needed.
If you found bald eagles algae mosquito larvae and salmon within the same ecosystem what role would each organism most likely play?
The larvae would be the heteroplasmic ruler, then the algae, then the mosquito, then the salmon, and finally the eagle.
What most directly salmon to swim in a river?
Salmon swim upstream to live out their adult lives. The thing that helps them to swim upstream is purely will power and instinct. They are taught all of their lives to swim to the ocean when they are adults and return to the river where they were born to give birth and die.
What most directly helps salmon swim in a river?
Salmon swim upstream to live out their adult lives. The thing that helps them to swim upstream is purely will power and instinct. They are taught all of their lives to swim to the ocean when they are adults and return to the river where they were born to give birth and die.
What most directly helps salmon to swim a river?
Salmon swim upstream to live out their adult lives. The thing that helps them to swim upstream is purely will power and instinct. They are taught all of their lives to swim to the ocean when they are adults and return to the river where they were born to give birth and die.
What is the most important species of fish in the Fraser River?
salmon
What most directly helps salmon swim in rivers?
Salmon swim upstream to live out their adult lives. The thing that helps them to swim upstream is purely will power and instinct. They are taught all of their lives to swim to the ocean when they are adults and return to the river where they were born to give birth and die.
What is the major rivers of Idaho?
The most important rivers in Idaho are the Snake River and the Salmon River.
What did the Chinook Indians have for food?
mostly salmon, most of the chinook food was from along the culmbian river
How does storm water pollution affect salmon?
Most storm water in Seattle goes directly to the Puget Sound without treatment, providing problems for the salmon and other fish life.
What you call a fish that swims in salt water and then back to fresh water again?
Most species of salmon swim up river to lay their eggs.
Which Scottish river is famous for salmon fishing?
There are several famous salmon rivers in Scotland, and they have a great fishing tradition there. To mention a few of the most famous I have to pick out the river Tay, which is the largest river in Britain. Dee is one of the big ones, as is Spey, and lastly I want to mention Tweed. Those four are called "the big four" because they are the most famous ones and have such a history and reputation that they are not just famous in Scotland, but in the whole world.
Why do grizzly bears go to river rapids to catch salmon for food?
Rapids and low falls are the places where salmon migrating upriver to spawn are most likely to jump out of the water allowing the bear to catch them with a swipe of its paw and not get too wet.
Do salmon eat other salmon?
Cannibalism in salmon has not been registered to date. I do not doubt that salmon would eat their own young, as most salmonids do (trout are notorious for turning "cannibal"), given the opportunity. However, salmon stop eating before returning to freshwater (their feeding teeth fall out also), otherwise a decent run would entirely decimate the fish stocks of their home river as they passed upstream. I have personally witnessed a male Atlantic salmon kill a salmon "parr" (juvenile salmon of approx. 6 inches), but this is as likely to be territorial behavior as any kind of feeding reflex.
