Which is Salmon Fish ?

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Salmon is the common name for fish in the order Salmoniformes. They live in the northern Atlantic and Pacific oceans, and are anadromous, which means most types of salmon are born in fresh water, migrate to the sea, and return to freshwater to reproduce, or "spawn."

Salmon appearance varies greatly from species to species. Species like chum salmon are silvery-blue in color while some have black spots on their sides, like the Atlantic salmon. Still others, like the cherry salmon, have bright red stripes. Most of these species maintain one color when living in fresh water, then change color when they are in salt water.

In general, young salmon eat insects, invertebrates and plankton; adults eat other fish, squid, eels, and shrimp. Unlike all other salmon, the sockeye salmon has a diet that consists almost entirely of plankton.

In the Colorado River, for instance, salmon numbers are down to 3% of what they were during the time of Lewis and Clark.

In the Colorado River, for instance, salmon numbers are down to 3% of what they were during the time of Lewis and Clark.

Salmon can be found in both the Atlantic and Pacific oceans as well as inland lakes like the Great Lakes.

Most salmon are anadromous fish, meaning they are born in freshwater (rivers or streams), travel to and live much of their lives in salt water and return to freshwater to spawn. After spawning, all Pacific salmon and up to 50% of other species die within a few weeks. The salmon that do not die can spawn two or three more times.

Like WWF-Canada, salmon love both salt water and freshwater

There are a few species and subspecies of salmon, like the Danube salmon and the kokanee salmon, that spend their entire lives in fresh water and never migrate to the ocean.

Salmon are considered “anadromous” which means they live in both fresh and salt water. They are born in freshwater where they spend a few months to a few years (depending on the species) before moving out to the ocean. When it’s time to spawn, they head back to freshwater. Very few other fish can survive in such wide ranges of salinity, and would die if they moved between salt and fresh water the way that salmon do.

After living for many years at sea, salmon travel a long distance home to return to the river in which they were born to spawn.

When the female reaches the place where she will lay her eggs, she makes a depression in the riverbed with her tail, and then deposits her eggs in this depression. She waits for males to fertilize the eggs, then covers the depression and moves on to make another. Females will make as many depressions as it takes to lay all their eggs (up to seven depressions).

There are many theories about how they are able to do this. Some state that salmon use the Earth’s magnetic field to guide them, while others say they use their strong sense of smell to guide them home. Habitat changes and losses can affect the salmon’s ability to return to their native spawning river, posing a threat to the survival of future salmon generations.

Salmon are considered “anadromous” which means they live in both fresh and salt water. They are born in freshwater where they spend a few months to a few years (depending on the species) before moving out to the ocean. When it’s time to spawn, they head back to freshwater.

Salmon have a really strong sense of smell

That’s because when saltwater fish are exposed to freshwater, it can cause their cells to burst. And when freshwater fish are exposed to salt water, it can cause their cells to shrivel, due to a process known as osmoregulation. Luckily salmon have some pretty amazing physiological and behavioral adaptations that allow them to survive in both environments.

Atlantic salmon can smell one drop of scent in an area the equivalent of ten Olympic size pools!

Salmon change colour!

Salmon is fish that belongs to the family Salmonidae. It is closely related to trout and char. There are nine commercially important species of salmon that can be found in the Atlantic (Atlantic salmon, genus Salmo) and Pacific oceans (eight species, genus Oncorhynchus). Most species of salmon are anadromous, which mean that they spend part of their life in rivers and other part in the ocean. Some species of salmon spend their entire life in rivers

Salmon can be three different colours over the course of their life. For example, check out the picture above: juvenile sockeye salmon are light coloured and spotted, and during their adult years in the ocean, they are silvery blue. When it’s time to spawn, the adult bodies turn a brilliant red and their heads turn green.

Certain populations of salmons are reduced to 3% of their original size due to overfishing. Atlantic salmon is one of the most endangered species of salmon

Six different species of salmon live in Canada

Salmon can reach 20 inches to 5 feet in length and 4 to 110 pounds of weight, depending on the species. Cherry salmon is the smallest and Chinook salmon the largest species of salmon.

Salmon can be blue, red or silver in color. Some species are covered with black spots and red stripes.