This salmon species is known for its bright red skin during the spawning season. Sockeye salmon (Oncorhynchus nerka) are native to the northern Pacific Ocean and the rivers that flow into it.
In the ocean, sockeye salmon don’t look like they do in spawning mode. Instead, they are a pale turquoise to deep blue, with silvery hues on the belly. They don’t begin to change color until the migration season. The change begins when they swim into the freshwater rivers and streams where they hatched. Eventually, the salmon’s body becomes bright red, with a green head.
The life cycle of sockeye salmon is hard to explain by natural selection. Juvenile sockeye are hatched in freshwater, where they remain for up to three years. Eventually, the fish decides it’s time to journey to the sea, where it will grow larger. It will follow the river downstream up to 1,000 miles (1,600 km) to reach the ocean. We don’t know how the fish know when the time is right or why they feel the urge to relocate, but they are programmed to carry out this incredible journey.
The sockeye stays in the ocean for one to four years, growing rapidly and feeding mainly on zooplankton. After some time, something triggers the fish’s brain, telling it to leave the ocean and swim upstream to the place of its origin. As the journey begins, the fish will stop eating. If it completes the journey, it spawns and dies there. Many do not make it because, along the way, they become food for predators such as bears, or even humans. Although sockeye salmon are among the smaller of the seven Pacific salmon species, humans prize their meat.
Sockeye salmon are endangered in some areas, while plentiful in others. In the regions where these salmon are abundant, they significantly influence their ecosystem. Salmon runs bring vast amounts of marine nutrients from the ocean to rivers, sustaining a healthy ecosystem. As evidence of how God has given living creatures the ability to adapt, some salmon do not migrate. Instead, they spend their entire lives in freshwater lakes, where they are known as kokanee salmon.
If evolution is directed by survival of the fittest, why would sockeye salmon make the journey to the ocean and back to their place of origin? Their return journey benefits the ecosystem and their predators, but not the salmon themselves. They die whether they serve as food for bears or complete the journey. Who programmed into these fish the ability to find the place where they hatched? These beautiful fish play a critical role in their habitat and demonstrate a designed system that requires a Designer.
— Roland Earnst © 2026
Click HERE for information on Atlantic salmon.
