Round Whitefish
Round whitefish are a native salmonid found across northern and central Canada, from the Great Lakes basin through the boreal north to Alaska.
They're an underutilized table fish — most anglers encounter them by accident while jigging for walleye or lake trout.
In Ontario and Alberta, dedicated whitefish fishing is growing, particularly through the ice, where schools of them can produce fast, surprising action on light tackle.
Also known as Menominee, pilot fish, frost fish, round fish, Menominee whitefish, river whitefish
- Long, tubular body with a nearly round cross-section — more cylindrical than any other whitefish, which makes ID straightforward in hand.
- Olive-brown back fading to bright silver sides and a white belly; pectoral and pelvic fins often show a faint orange tint.
- Small, toothless mouth with the snout overhanging the lower jaw; a single flap between the nostrils separates it from ciscoes and lake whitefish.
- Typical fish run 9–14 inches; individuals over 18 inches are uncommon. Large scales and an adipose fin confirm its salmonid family membership.
What to know
Habitat Distribution
- Native across Canada — from Labrador and the Great Lakes (except Lake Erie) west through the boreal shield to the Northwest Territories, Yukon, and into Alaska.
- Primarily a deep, cold, clear-lake fish; also found in large, cold rivers where populations were historically more abundant.
- In Ontario, healthy populations exist in many remote shield lakes — Canyon Lake, Upper and Lower Twin Lakes, Hanover Lake, Marshall Lake, and Ara Lake among them.
- In Alberta, lake populations support a growing ice-fishing following; fish use deep troughs in larger lakes through mid-winter.
Key Locations
- Canyon Lake, Ontario — consistent deep-water populations with established seasonal patterns; fish school predictably in summer basins and fall shallows.
- Upper and Lower Twin Lakes, Hanover Lake, Marshall Lake, and Ara Lake in northwestern Ontario — high-density populations in remote shield water with light fishing pressure.
- Lake Ontario (Canadian side) — the last remaining Great Lakes population of note; supports a limited commercial fishery out of Ontario ports.
- Northern Alberta lakes — a growing ice-fishing destination where whitefish use deep troughs and sandy flats through the winter season.
Specific Spots
- In summer, schools pack into the deepest basins — 50–57 feet is typical in Ontario shield lakes — where cold, well-oxygenated water sits near bottom.
- After ice-up, fish move shallower onto sandy flats and weedline edges in 4–35 feet; early-season ice anglers find them in as little as 4–8 feet near visible weed growth.
- Deep troughs and channels running through larger lakes concentrate fish through mid-winter; look for suspended fish just above bottom on a sonar unit.
- In fall, pre-spawn fish stage on gravel shoals and at river mouths — the same structure that holds lake trout in many Canadian shield lakes.
Round Whitefish FAQ
Answers from onWater's species guide.
What are the best lures and bait for Round Whitefish?
Small jigging spoons in silver (3/4 oz for deeper water) are the most consistent producers through the ice and in summer deep-water fishing; red or orange beads or a small piece of bait on the hook adds attraction. Cicada-style blade baits in silver are another proven option in Ontario.
What flies work for Round Whitefish?
During the mayfly hatch near ice-out, small dry flies (size 12–16) matching the emerging insects draw surface takes, Comparaduns or Sparkle Duns in olive or tan are good starting points.
When is the best time to fish for Round Whitefish?
Ice-out through the mayfly hatch (late April–June in most of Ontario and Alberta): fish are shallow and actively feeding near the surface, the best fly-fishing window of the year.
How do you catch Round Whitefish?
Most Canadian anglers encounter round whitefish while ice fishing or jigging for other species, then deliberately target them once they locate a school. Vertical jigging with small spoons or tipped jigs near bottom, confirmed with a sonar flasher, is the most reliable method.
What do Round Whitefish eat?
Bottom-oriented invertebrate feeders: mayfly larvae, midge (chironomid) larvae, small crustaceans, and zooplankton make up the bulk of the diet. Their small mouths mean small presentations, size 10–14 hooks and tiny jigs match the forage far better than anything large.
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