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| Lake Trout |
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| Return To Search |
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| Name and Code |
| Family |
| Salmonidae - trouts and salmons |
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| Species |
| Salvelinus namaycush |
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| Taxonomic Authority |
| (Walbaum 1792) |
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| Common Name(s) |
| Lake Trout |
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| Conservation Status |
| Global Rank (GRank) |
| G5 (2015-08-17) |
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| National Rank (NRank) |
| N5 (2017-12-22) |
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| Provincial Rank (SRank) |
| S5 (1997-10-02) |
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| Ecological Value |
| Ontario Origin |
| native/introduced |
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| Economic Importance |
| commercial fishery; sport fish |
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| Length-Weight Regression Coefficents |
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| Habitat and Feeding |
| General Habitat(s) |
| lacustrine |
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| Environment |
| benthopelagic |
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| Trophic Class |
| invertivore/carnivore |
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| Habitat Preference |
| cold deeper waters (12-23m) of lakes, below the thermocline in summer; preferred water temperature range 9-13°C |
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| Reproduction |
| Reproductive Guild |
| Nonguarders: Brood hiders: Lithophils |
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| Spawning Habitat(s) |
| lacustrine |
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| Spawning Month(s) |
| September-November |
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| Spawning Temperature (°C) |
| 9-14 |
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| Nursery Habitat(s) |
| lacustrine |
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| Size and Age |
| Adult Length (cm) |
| 38.1-91.4 TL |
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| Adult Weight (kg) |
| 0.4-6.9 |
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| Age at Maturity (yrs) |
| 3-7 (m); 4-8 (f) |
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| Maximum Length (cm) |
| 162.6 TL |
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| Maximum Weight (kg) |
| 46.38 |
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| Ontario Records |
| Record Length (cm) |
| 130.8 TL |
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| Ontario Range Map |
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Ontario Distribution |
| widespread throughout the province, except southwest |
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| Photographs |
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| Notes |
| rarely spawns in rivers; deepwater (80+ m) form in Lake Superior known as "siscowet"; hybrids with Brook Trout called "splake"; original genetic stocks from Lake Huron, Lake Erie and Lake Ontario extirpated |
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| Information Sources |
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| Hasnain, S.S, C.K. Minns, and B.J. Shuter. 2010. Key ecological temperature metrics for Canadian freshwater fishes. Climate change research report: CCRR-17. Applied Research and Development Branch, Ontario Ministry of Natural Resources. Sault Ste. Marie, ON. 54 pp. |
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| Lane, P.A., C.B. Portt, and C.K. Minns. 1996. Adult habitat characteristics of Great Lakes fishes. Can. MS Rpt. Fish. Aquat. Sci. 2358: v + 43 p. |
| Lane, P.A., C.B. Portt, and C.K. Minns. 1996. Spawning habitat characteristics of Great Lakes fishes. Can. MS Rpt. Fish. Aquat. Sci. 2368: v + 48 p. |
| Lee, D.S., C.R. Gilbert, C.H. Hocutt, R.E. Jenkins, D.E. McAllister, and J.R. Stauffer, Jr. 1980. Atlas of North American freshwater fishes. North Carolina State Museum of Natural History Publication 1980-12. Raleigh, NC. x + 867 pp. |
| MacKay, H.H. 1963. Fishes of Ontario. Ontario Department of Lands and Forests. The Bryant Press Limited. Toronto, ON. 300 pp. |
| Mandrak, N.E. and E.J. Crossman. 1992. A checklist of Ontario freshwater fishes annotated with distribution maps. Royal Ontario Museum Life Sciences Miscellaneous Publication. Toronto, ON. v + 176 pp. |
| McAllister, D.E. and B.W. Coad. 1974. Fishes of Canada's National Capital Region/Poissons de la r?gion de la capitale du Canada. Fish. Res. Board Can. Misc. Spec. Publ. 24: 203 pp. |
| McPhail, J.D. 2007. The freshwater fishes of British Columbia. The University of Alberta Press. Edmonton, AB. lxxiv + 620 pp. |
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| Mecklenburg, C.W., T.A. Mecklenburg, and L.K. Thorsteinson. 2002. Fishes of Alaska. American Fisheries Society, Bethesda, Maryland. xxxvii + 1037 pp. |
| NatureServe. 2023. NatureServe Network Biodiversity Location Data accessed through NatureServe Explorer [web application]. NatureServe, Arlington, Virginia. Available https://explorer.natureserve.org/ (Accessed: February 2, 2023). |
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| Ontario Federation of Anglers & Hunters (OFAH). 2022. OFAH Ontario record fish registry. https://www.ofah.org/wp-content/uploads/2022/11/OFAH_RecFish_Nov22.pdf. November 14, 2022. |
| Page, L.M. and B.M. Burr. 2011. Peterson field guide to freshwater fishes of North America north of Mexico, second edition. Houghton Mifflin Harcourt. Boston, MA. xix + 663 pp. |
| Page, L.M., K.E. Bemis, T.E. Dowling, H.S. Espinosa-Pérez, L.T. Findley, C.R. Gilbert, K.E. Hartel, R.N. Lea, N.E. Mandrak, M.A. Neighbors, J.J. Schmitter-Soto, and H.J. Walker Jr. 2023. Common and scientific names of fishes from the United States, Canada, and Mexico. 8th Edition. American Fisheries Society, Spec. Publ. 37. Bethesda, MD. 439 pp. |
| Phillips, G.L., W.D. Schmid, and J.C. Underhill. 1982. Fishes of the Minnesota region. University of Minnesota Press. Minneapolis, MN. x + 248 pp. |
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