Freshwater
Sheefish (inconnu)
Inconnu (pescado blanco gigante)
Stenodus nelma
At a glance
5–20 lb.
5–30 ft.
Daytime.
4 areas
Know it
Spot it, size it up and learn its habits.
- Identification
The biggest whitefish: long, silvery body with big scales, an adipose fin, and a large mouth with a jutting lower jaw (unlike other whitefish). Called the 'tarpon of the north' for its jumps.
- Typical size
5–20 lb.
- Maximum size
About 5 ft and over 50 lb.
- Diet
Fish, especially whitefish and ciscoes.
- Behavior
Migrates long distances between river deltas and upriver spawning grounds; feeds heavily in late summer.
Find it
Where, when and how deep to look.
- Where to find it
Found from Alaska, Yukon, NWT & Nunavut, Russia, Mongolia & Kazakhstan and Black Sea & Caspian. Big Arctic rivers and lakes: the Kobuk, Selawik, Yukon and Kuskokwim in Alaska, and the Mackenzie River and Great Slave Lake in Canada; also in Arctic Russia.
- Habitat
Big Arctic rivers and lakes: the Kobuk, Selawik, Yukon and Kuskokwim in Alaska, and the Mackenzie River and Great Slave Lake in Canada; also in Arctic Russia.
- Depth
5–30 ft.
- Fishing depth
5–15 ft in river channels.
- Best season
Late summer and fall; also through the ice in Alaska.
- Best time
Daytime.
- Best tides
No tide — in rivers, falling water after the rainy season is best.
- Best weather / conditions
Stable weather.
Bait & gear
What to tie on and what to throw.
- Best bait
Cut fish where allowed.
- Best artificial lures
Big casting spoons, streamers and swimbaits.
- Tackle setup
Medium-heavy spinning rod or 8–9 weight fly rod.
- Hook size
Single hooks 2/0–4/0.
- Line
15–20 lb.
- Leader
20–30 lb fluorocarbon.
BigJoe's setup for Sheefish (inconnu)
The rod, reel, line and lures BigJoe would use.
Also at Bass Pro Shops: RodReelLineSpoonsNetBear spray
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Catch it
Step by step, from first cast to landing.
Step-by-step: how to catch it
- Go where it lives: Big Arctic rivers and lakes: the Kobuk, Selawik, Yukon and Kuskokwim in Alaska, and the Mackenzie River and Great Slave Lake in Canada; also in Arctic Russia.
- Rig up: Medium-heavy spinning rod or 8–9 weight fly rod. 20–30 lb fluorocarbon.
- Pick your bait: Cut fish where allowed. Lures: Big casting spoons, streamers and swimbaits.
- Fish it: Cast and retrieve big spoons through deep runs and river mouths where sheefish gather.
- Time it: Daytime. No tide — in rivers, falling water after the rainy season is best.
- Fishing techniques
Cast and retrieve big spoons through deep runs and river mouths where sheefish gather.
- BigJoe's tip
Sheefish have soft mouths and jump a lot — keep steady pressure.
- Catch and release
Catch and release: wet your hands, keep the fish in the water when you can, and release it quickly. Use circle hooks and a dehooker.
Clean & cook
Is it good to eat, and how to prepare it.
- Edibility
Good eating when fresh.
- Cleaning
Bleed and ice it right away. Fillet, then remove the skin and any dark bloodline.
- Cooking suggestions
Rich, white meat, a traditional food in Alaska Native villages; great baked, smoked or dried.
Stay safe & legal
Safety, rules and taking care of the fishery.
- Safety warnings
Remote country: bears, cold water and long distances from help.
- Regulations
Alaska and the Canadian territories set limits; the Kobuk has trophy rules. Check local rules. In Alaska, rules are set by the Alaska Department of Fish and Game (adfg.alaska.gov); in Canada, by each province and territory. Many trout and char waters are single-hook, artificial-lure or catch-and-release only — check before you go.
- Conservation
Slow growing; release the big breeders.
Where it's found
Tap an area to open its fishing map.