
Round Whitefish
Prosopium cylindraceum
Also known as
Menominee Whitefish, Frost Fish
IUCN status
Least ConcernAbout the Round Whitefish
The Round Whitefish boasts a slender, cylindrical body, typically sporting an olive-brown back that fades into light silvery sides and a bright white belly. Its small, underslung mouth is perfectly adapted for foraging along the lakebed. These fish commonly measure between 9 and 19 inches, offering a respectable catch for anglers.
Source: FishBase & iNaturalist
Habitat
Primarily found in cold, oxygen-rich freshwater lakes, the Round Whitefish prefers deeper sections, often near rocky bottoms or gravel shoals. They can also inhabit large rivers with suitable conditions, especially during spawning migrations.
Distribution
Their extensive range spans across North America, from the vast lakes of Alaska and Canada eastward through the Great Lakes region and into New England.
Behaviour
As dedicated bottom feeders, Round Whitefish tirelessly forage for a diet consisting mainly of small invertebrates like crustaceans, insect larvae, and fish eggs. They are known for their schooling behavior in deeper waters, moving to shallower areas for spawning, often in late fall or early winter. Their feeding activity can be quite subtle, requiring a keen eye from anglers.
Edibility
★★★★★
Prized for its delicate, mild flavor and firm, flaky white flesh, the Round Whitefish is excellent table fare. It's superb when smoked, pan-fried, or baked, making for a truly enjoyable meal.
Lure suggestion
Targeting Round Whitefish requires finesse. Small jigs tipped with a grub or a piece of nightcrawler, tiny spoons, or micro-baits presented directly on the bottom are highly effective. Fly anglers can find success with small nymph patterns or midge larvae imitations. Patience and a sensitive rod are key to detecting their often subtle bites.
Round Whitefish Regulations
Select a state to see size limits, bag limits, and seasons for Round Whitefish.
Select a state
Always confirm with the official state agency before keeping a fish.
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Related Species
Where to Catch Round Whitefish
States where Round Whitefish is found, based on CatchVault's waterbody commonality data.
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