Difference Between Coho Salmon and Sockeye Salmon

People are getting more and more aware of their fitness. Seafood has become one of the extensively consumed foods. It is enriched in necessary fatty acids and also provides calcium and additional nutrients. 

Salmons are certain types of fish that are a significant part of the population’s diets; these are both found in the Alaskan province. They furnish us with a vast range of health advantages and are regarded as a rich source of amino acids. 

The significant distinction between these two different species of Salmon lies in the parameters that the coho salmon are primarily silver and ebony. However, the sockeye salmon is red in hue.

Coho Salmon vs Sockeye Salmon

The main differences between Coho salmon and Sockeye salmon is that Coho is generally milder, whereas sockeye is stronger in its flavour. Also, the presence of fatty acids is different along with colour. In the case of the coho, it is mostly dark with a tinge of silver. And the sockeye is red. Their length is also different as coho is a bit smaller than sockeye. 

Coho vs Sockeye Salmon

A coho Salmon is mostly a type of species that migrates from saltwater which is found in seas, to freshwater. Their sides are bright silver, and also their fin region (back part) is dark in color.

Their color changes to red and blue when they migrate to new aquatic bodies.

The males and females can be differentiated as the male has the back part slightly curved compared to the female. They are primarily seventy-one centimeters in length and can weigh up to three to five kilograms. 

A sockeye Salmon is a more prominent species of Salmon. They, too, are migratory species. To meet their nutritional ends, they feed on tiny organisms called zooplankton. They are mostly red.

Their weight can range from three to seven kilograms. Their name is derived from the term- redfish. They have a large number of gill cartilage and also no presence of any pattern in the back part. 

Comparison Table Between Coho Salmon and Sockeye Salmon

Parameters Of ComparisonCoho SalmonSockeye Salmon
ColorIt is silver and black.It is red.
LengthIts length is mostly 71 centimeters.Its length is 84 centimeters generally.
InsidesIts meat is light pink.Its meat is mostly red.
Fatty acidsIt has a mild amount of fatty acids.It is high in fatty acids.
Oils presentThe amount of oil in this is low.It is very oily.

What is Coho Salmon? 

Coho Salmon is one of the commonly found species of salmon. They are migrating fish that belong to the family ‘Salmon.’  They are primarily silver on the side. Their back part is red. They are found in abundance in the Alaskan region. 

When they migrate, they change their shade. The male member has their back in an arched position as compared to the females. Their streamlined body and fins help them in locomotion and migration.

They belong to the kingdom of Animalia. When the fish are entering the city, a rosy color sweeps into its belly region. When cut, the meat of this fish is primarily light pinkish. The size of these fish usually ranges from sixty-nine to seventy-one centimeters. 

They weigh somewhere in between three to five kilograms. If their life span is taken into consideration, it’s long. They lay their eggs once, and then they mostly end their lifespan.

Their eggs mostly hatch during the times of the late winter season. Also, the early spring season might be a good time for them to hatch. 

If assessed as a diet, their flavor is modest along with a mild smell. When they turn into adults, their teeth configuration becomes powerful along with their jaws. 

They are less oily, as opposed to other species of salmon. Certain tribal societies also use this fish as a swap. However, they have seen a drastic decline in population because of people hunting them and pollution factors. 

What is Sockeye Salmon? 

It is another commonly found species of Salmon. It is located in the northern part of the Pacific region and in rivers that emerge from it. They are mostly red. Because of their color, some people also call them the redfish. 

Their length is eighty-four centimeters in maximum and sixty-four centimeters in minimum. Their range of weight is from two kilograms to seven kilograms.

They are primarily of two types – migratory and non-migratory. Some species migrate to the ocean, whereas some stay in the freshwater bodies for the whole of their lifespan. 

These are also found in the Columbia River and the northern region of the Japanese islands. This fish is a staple diet in those regions. Some of the fish are found in landlocked places. 

It means they cannot move to the ocean. They are more selective in their diet. They live in groups to stay protected. Their meat is dark red.

Also, their bodies contain a much higher amount of oils. The amount of fatty acids in them is also very high. These traits give them a rather bold smell and flavor. It is very nutritious. 

For reproduction purposes, the males of these species look for bigger and stronger females. The alpha or stronger males of these species behave rather aggressively.

In the United States, these have become an endangered species. At several phases of their life, they change their color. 

Main Differences Between Coho Salmon and Sockeye Salmon

  1. The coho salmon is mostly silver and black. However, the sockeye Salmon are red.
  2. The length of coho salmon’s ranges from seventy-one centimeters. The sockeye Salmon mainly reaches about eighty-four centimeters in length. It may be longer in some cases.
  3. The meat of the coho salmon is light pink, whereas the heart of the sockeye salmon is red. 
  4. The coho salmon contains a mild amount of omega-three fatty acids. The amount of omega-three fatty acid in sockeye salmon is much higher. 
  5. Coho salmon contains a mild amount of oil. A sockeye salmon, however, is a very oily kind of fish. 
Difference Between Coho Salmon and Sockeye Salmon


Seafood is considered a basic form of nutrition. People like consuming it in large numbers. However, due to this consumption, many species of salmon fish are becoming extinct. Some countries also have laws that help to protect these species. 

These fish have an exciting life. They travel in groups and have a long lifespan. One of the most distinctive characteristics is that they also change their color and pattern at different phases of life. 

Though seafood is considered a good source of nutrition, over depletion of fish and other water organisms should be avoided. Every country should have laws to protect and preserve them. Salmon are now being bred inland to increase their population. 


  1. https://www.tandfonline.com/doi/abs/10.1577/1548-8675(1992)012%3C0087%3APOSSFB%3E2.3.CO%3B2
  2. https://cdnsciencepub.com/doi/abs/10.1139/f58-031
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