Environment
Fact-checked

At AllThingsNature, we're committed to delivering accurate, trustworthy information. Our expert-authored content is rigorously fact-checked and sourced from credible authorities. Discover how we uphold the highest standards in providing you with reliable knowledge.

Learn more...

What is a Lenok?

Harriette Halepis
Harriette Halepis

A lenok is a type of fish that is part of the wild salmon species. These fish are usually found in Asia, though some lenoks can also be found in Russia. Lenoks can also be called Manchurian trout, Asiatic trout, and native salmon. Typically, the fish can be found swimming upstream, where the water is cold, in various rivers throughout Asia.

A lenok can grow to be 20 inches (50.8 cm). It can be difficult to discern a lenok from other fish, since these fish have both pointy and round noses. Many of these also have spots, though some of these fish do not have any marks. Weight-wise, a lenok can weigh more than 33 pounds (15 kg).

Any lenok fish caught in Korea must be released back into the wild.
Any lenok fish caught in Korea must be released back into the wild.

During the glacial epoch, lenoks were landlocked in Korea, where they are now rare due to over-fishing. Within recent years, the lenok has been placed on Korea's protected species list. As a result, any of the fish that are captured by fishermen in Korea must be released back into the wild. Lenok fishing season within Korea ranges from March to November each year.

As a sport fish, lenoks are not difficult to catch. Typically, these fish will hunt for any bait that is thrown in front of them. The hardest part about capturing a lenok is determining when they are no longer migrating. Due to the fact that these fish migrate each year, it can be difficult to pinpoint exactly when they return to river waters.

Lenoks feed mostly on flies and other small insects. When fishing for Manchurian trout, it is best to use bait that resembles a fly or other small insect. Anyone wishing to fish for Manchurian trout within Korea must contact Korean authorities. Lenoks are not endangered in other parts of the world, though a legal fishing license is required in order to fish in any water.

Many people enjoy fishing for Manchurian trout, since these fish are interesting to look at. While not overly large, lenoks are unlike most other fish that are part of the salmon species. Interesting patterns and colors make these fish fun for people who enjoy fly fishing. Throughout Korea, many different fishing expeditions are constructed regularly in order to help amateur fishermen catch a glimpse of the Manchurian trout. Asiatic trout cannot be found in the wild throughout North America. While some people attempt to keep these fish as pets, lenoks do not usually survive outside of their native home.

Frequently Asked Questions

What is a Lenok?

A Lenok is a freshwater fish species belonging to the salmon family, Salmonidae. It is native to cold water streams and rivers in Northeast Asia, including regions of Mongolia, China, Russia, and Korea. Lenoks are known for their distinctive, elongated bodies and beautiful coloration, which makes them a favorite among anglers in their native habitats.

How many species of Lenok are there?

There are two main species of Lenok: the sharp-snouted Lenok (Brachymystax lenok) and the blunt-snouted Lenok (Brachymystax tumensis). These species are differentiated by the shape of their snouts and genetic characteristics. They inhabit slightly different ecological niches within their range, with some overlap in their habitats.

What do Lenoks eat?

Lenoks are opportunistic feeders with a diet that includes a variety of aquatic insects, small fish, and crustaceans. Their feeding habits are influenced by the availability of prey in their environment. During certain seasons, they may also consume terrestrial insects that fall into the water, providing a rich source of protein.

Are Lenoks important to their ecosystem?

Yes, Lenoks play a crucial role in their ecosystems. As both predators and prey, they help maintain the balance of aquatic life in their native rivers and streams. They are an important food source for larger predators and also contribute to the control of insect populations, which can impact the health of the waterways.

Is the Lenok population at risk?

Lenok populations are facing pressures from habitat destruction, overfishing, and pollution. According to conservationists, these factors have led to a decline in some Lenok populations, prompting efforts to protect their habitats and implement sustainable fishing practices to ensure their survival and the health of their ecosystems.

Can Lenoks be found in captivity or are they only wild-caught?

While Lenoks are primarily wild-caught, there have been efforts to breed them in captivity for both conservation and aquaculture purposes. These initiatives aim to reduce the pressure on wild populations and provide an alternative source for anglers and fish enthusiasts, though the success and scale of such programs can vary.

Discuss this Article

Post your comments
Login:
Forgot password?
Register:
    • Any lenok fish caught in Korea must be released back into the wild.
      By: Ruslan Olinchuk
      Any lenok fish caught in Korea must be released back into the wild.