Lake · Division No. 1, Manitoba, Ontario
Mantario Lake
At a glance
- Area
- 412 ha (1,019 acres)
- Mean depth (estimated)
- ≈ 8.6 m (28 ft)
Mean depth: HydroLAKES (Messager et al. 2016)
This lake's year
A ring of the twelve months, January at the top: the outer band is the ice cover, the inner rings the spawning months of the lake's species, and a needle marks the day this page was updated. The list beside it says the same.
- No published ice dates for this lake.
- 1. Lake trout spawns: Sep–Nov (months cited for Great Lakes populations)
- 2. Lake whitefish spawns: Oct–Jan (months cited for Great Lakes populations)
- Needle: Oct 25, the day this page was updated
Spawning months from each species' cited source for this region, for its five best-recorded species here; ice dates from the published record (sources below). Summer layering and fall turnover are drawn only for lakes the USGS has modelled (in the U.S. Midwest).
Who lives here
- Lake trout Salvelinus namaycushOn the agency's list · Fish species lists: Manitoba Wildlife and Fisheries Branch (Manitoba Lake Information for Anglers). Contains information licensed under the Manitoba Open Data Licence
- Lake whitefish Coregonus clupeaformisOn the agency's list · Fish species lists: Manitoba Wildlife and Fisheries Branch (Manitoba Lake Information for Anglers). Contains information licensed under the Manitoba Open Data Licence
- Northern pike Esox luciusOn the agency's list · Fish species lists: Manitoba Wildlife and Fisheries Branch (Manitoba Lake Information for Anglers). Contains information licensed under the Manitoba Open Data Licence
- White sucker Catostomus commersoniiOn the agency's list · Fish species lists: Manitoba Wildlife and Fisheries Branch (Manitoba Lake Information for Anglers). Contains information licensed under the Manitoba Open Data Licence
- Yellow perch Perca flavescensOn the agency's list · Fish species lists: Manitoba Wildlife and Fisheries Branch (Manitoba Lake Information for Anglers). Contains information licensed under the Manitoba Open Data Licence
Not listed doesn't mean no fish.
Getting on the water
No public access site is listed for this water yet.
Listed by public agencies. A listed site doesn't make the water or its shore open to fishing: when in doubt, it's unknown. Check signs and local rules.
The rules
Summary, not the law. Check the official regulations before you fish.
- Lake troutClosed · 1 a day
- Lake whitefishOpen, any size · 10 a day
- Northern pikeOpen, size limits · 4 a day
- Yellow perchOpen, any size · 25 a day
As of October 25, 2026, for a fish of any size.
Official regulations: Manitoba Natural Resources
Official sources:
- Manitoba Anglers' Guide 2026 (Manitoba government). Contains information from the Government of Manitoba, licensed under the OpenMB Information and Data Use License (Manitoba.ca/OpenMB) (p. 17, Species Seasons (closed September 15 to October 31))
What's biting
Not enough anglers have shared catches here lately. A species shows for a week once at least 5 anglers share catches of it.
From anglers who chose to share their catches in HuntGrid Fishing, each counted once, counts rounded to the nearest 5, published 3 days after the week ends and never changed. Never a spot, time or name.
About this page
Sources and licences:
- Natural Resources Canada, CanVec Hydro Features (1:50,000). Contains information licensed under the Open Government Licence – Canada.; Natural Resources Canada, Canadian Geographical Names Database (CGNDB); Adapted from Statistics Canada, 2021 Census Boundary Files (census divisions and subdivisions, provinces). This does not constitute an endorsement by Statistics Canada of this product. · Open Government Licence – Canada 2.0
- Lake mean depth: HydroLAKES (Messager et al. 2016, Nature Communications 7:13603), CC BY 4.0 · CC BY 4.0
- Fish species lists: Manitoba Wildlife and Fisheries Branch (Manitoba Lake Information for Anglers). Contains information licensed under the Manitoba Open Data Licence · Manitoba Open Data Licence (OpenMB Information and Data Use Licence, https://www.gov.mb.ca/legal/copyright.html, checked 2026-10-18): "The Information Provider grants you a worldwide, royalty-free, perpetual, non-exclusive licence to use the Information, including for commercial purposes". Item 593e253698a648e88789a661832b2ac0 (Manitoba_Government): licenseInfo "Manitoba Open Data Licence".
Spawning months:
- Lake trout: Marcus, M.D., W.A. Hubert and S.H. Anderson. 1984. Habitat suitability index models: Lake trout (exclusive of the Great Lakes). U.S. Fish Wildl. Serv. FWS/OBS-82/10.84 (habitat use information: temperature that cues spawning (varies by lake)); p. 3 (spawning months: Great Lakes, New York, New Hampshire, Maine; mid-August to mid-September in Great Bear and Great Slave lakes)
- Lake whitefish: Goodyear, C.D., T.A. Edsall, D.M. Ormsby Dempsey, G.D. Moss, and P.E. Polanski. 1982. Atlas of the spawning and nursery areas of Great Lakes fishes, Volume XIII: Reproductive characteristics of Great Lakes fishes. U.S. Fish Wildl. Serv. FWS/OBS-82/52, p. 15 (Great Lakes populations: spawning for 2-5 weeks in October-January, peak usually late November-early December)
The outline is drawn from the official water data credited above, without a basemap. These pages show no angler's catches, spots or tracks.