Inconnu
Stenodus nelma
The inconnu, or sheefish, is a large predatory member of the whitefish family and the giant of the group, reaching well over a metre in the big rivers of the north. Silvery and pike-like in profile with a large underslung mouth, it is prized as a hard-fighting sport fish of the Yukon and Porcupine river drainages.
Large, cold rivers and connected lakes of the Yukon and Porcupine drainages; migrates long distances between feeding and spawning waters and grows slowly to a great size.
How to Catch Inconnu
Whether you're new to targeting Inconnu or refining your approach, success starts with matching your tactics to where the fish lives. Inconnu (Stenodus nelma) is typically found in river water and lake water, so concentrate your effort where those conditions line up. Mature Inconnu average around 30 inches, which helps you choose the right line, lure size, and tackle for the fight.
Where to Find Inconnu in the USA & Canada
Inconnu is recorded across a range of North American waters, including spots in Alaska, Northwest Territories, and Yukon. Browse the linked water guides below to see the specific lakes, rivers, and coastal waters where anglers report catching Inconnu, then plan a trip around the water closest to you.
Inconnu Fishing Regulations & Limits
Fishing rules for Inconnu vary by state and province. Before you head out, check the daily bag limits, minimum size limits, and open seasons that apply in your area. When FishFinder has matching records, the regulations link below takes you to the rules hub. Following local limits keeps Inconnu populations healthy for future seasons.
Related Water Guides for Inconnu
Explore these FishFinder water guides for places where Inconnu is recorded:
- Lake Laberge — Inconnu fishing water
- Great Slave Lake — Inconnu fishing water
- Hay River — Inconnu fishing water
- Mackenzie River — Inconnu fishing water
- Lac la Martre — Inconnu fishing water
- La Martre River — Inconnu fishing water
- Great Bear Lake — Inconnu fishing water
- Great Bear River — Inconnu fishing water
- Travaillant Lake — Inconnu fishing water
- Peel River — Inconnu fishing water
- Arctic Red River — Inconnu fishing water
- Dolomite Lake — Inconnu fishing water
- Tanana River — Inconnu fishing water
- Yukon River — Inconnu fishing water
Inconnu Regulations
Review current FishFinder regulation records before targeting Inconnu:
Frequently Asked Questions
What kind of water is best for catching Inconnu?
Inconnu (Stenodus nelma) is typically found in river water and lake water. Focus your effort where those conditions line up to improve your chances.
How big does Inconnu get?
Mature Inconnu average around 30 inches, though individual fish can run larger. Matching your line, lure size, and tackle to that range makes for a better fight and landing rate.
Where can I catch Inconnu in the USA and Canada?
Inconnu is reported across North American waters, including spots in Alaska, Northwest Territories, and Yukon. Check the locations listed on this page to find the lakes, rivers, and coastal waters closest to you.
Do I need a fishing license to catch Inconnu?
A valid fishing license is required in most US states and Canadian provinces. Daily bag limits, minimum size limits, and open seasons for Inconnu vary by region, so review the regulations on this page and with your local wildlife authority before heading out.