About Chum salmon
- It is a species of anadromous salmonid fish, which means they hatch in freshwater streams and rivers and then migrate out to the saltwater environment of the ocean to feed and grow.
- They do not reside in fresh water for an extended period.
- They are also known as dog salmon.
- Distribution
- They are the most widely distributed of all the Pacific salmon.
- They are found throughout the North Pacific Ocean and range from the Arctic coast of Canada and throughout the northern coastal regions of North America and Asia.
- Habitat
- They spend their early life growing and feeding in freshwater streams, estuaries, and associated wetlands.
- They spend the remainder of their life foraging in the ocean before returning to the streams and tributaries where they were born to spawn.
Q1) What is Salmonid?
Salmonids are carnivorous predators of the middle food chain, feeding on smaller fish, crustaceans, aquatic insects and larvae, tadpoles and sometimes fish eggs. They have a relatively primitive appearance among teleost fish, with the pelvic fins being placed far back, and an adipose fin towards the rear of the back.
Source: Scientists find chum salmon breeding in Arctic, and they believe it’s ‘an ominous sign’
Last updated on Sep, 2026
→ UPSC 2027 Notification will be released on 13 January 2027 at upsconline.nic.in.
→ Check out the latest UPSC Syllabus here.
→ Download UPSC Model Answers for Mains 2026
→ UPSC Mains Question Paper 2026 is out now for Essay & GS Paper 1, 2, 3 & 4.
→ UPSC Calendar 2027 has been released.
→ Enroll in Vajiram & Ravi’s UPSC Mains Test Series 2027 for structured answer writing practice, expert evaluation, and exam-oriented feedback.
→ Join Vajiram & Ravi’s UPSC Mentorship Program 2027 for personalized guidance, strategy planning, and one-to-one support from experienced mentors.
→ Go through the UPSC Mains Previous Year Papers to enhance your preparation.
→ UPSC has released UPSC Toppers List 2025 with the Civil Services final result on its official website.
→ Also check Best UPSC Coaching in India








