Northern Pike vs Muskellunge
The check that settles it
Pattern direction. Light spots on dark is pike; dark bars or spots on a light body is muskie. Count jaw pores too: pike five or fewer, muskie six or more.
Why this matters beyond curiosity
- Look-alike species often carry different limits. Walleye and sauger, black and white crappie, pike and muskie, blue and channel catfish — each pair can have different sizes, seasons and daily limits in the same water.
- Check it before the fish goes in the livewell. Most of the tests on this site take seconds and are far easier on a fish you are still holding.
- If you cannot tell, release it. That is the answer that is never wrong, and it is the one a warden will not argue with.
- Regulations are set by your state or province and change annually. This site identifies fish; it does not tell you the rules. Check the current regulations for the water you are on.
Northern Pike
Pike and muskieEsox lucius
- Markings
- spots
- Body
- elongated
- Typical size
- 2–20 lb
- Regulations
- Muskellunge typically carry much larger minimum sizes and lower limits than pike. If you cannot tell which you have, release it.
Muskellunge
Pike and muskieEsox masquinongy
- Markings
- vertical bars, spots
- Body
- elongated
- Typical size
- 5–35 lb
- Regulations
- Minimum sizes of 40 to 54 inches and limits of one fish per day or per season are common. Many waters are catch and release only. Verify before keeping one.
Confirming a northern pike
- Light spots on a darker body — the reverse of a muskie's pattern.
- Cheek fully scaled, gill cover scaled only on the upper half.
- Five or fewer pores under each side of the lower jaw.
- Rounded tail lobes.
Confirming a muskellunge
- Dark markings on a light body — the reverse of a pike.
- Six or more pores under each side of the lower jaw. Pike has five or fewer.
- Cheek and gill cover both scaled only on the upper half.
- Pointed tail lobes rather than rounded.