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| Aurora Trout |
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| Name and Code |
| Family |
| Salmonidae - trouts and salmons |
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| Species |
| Salvelinus fontinalis timagamiensis |
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| Taxonomic Authority |
| Henn & Rinkenbach 1925 |
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| Common Name(s) |
| Aurora Trout |
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| Conservation Status |
| Global Rank (GRank) |
| G5TNRQ (2011-06-08) |
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| National Rank (NRank) |
| N1 (2011-11-15) |
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| Provincial Rank (SRank) |
| S1 (1998-04-27) |
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| AFS Status |
| Endangered (1,2,3,4,5) |
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| Ecological Value |
| Ontario Origin |
| endemic/introduced |
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| Economic Importance |
| 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 |
| colder waters (<20°C) below the thermocline in cool, clear (oligotrophic) lakes with areas of groundwater upwelling |
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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) |
| October-November |
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| Spawning Temperature (°C) |
| 4-6 |
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| Nursery Habitat(s) |
| lacustrine |
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| Size and Age |
| Adult Length (cm) |
| 23-45 FL |
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| Adult Weight (kg) |
| 0.1-1.0 |
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| Age at Maturity (yrs) |
| 2-4 |
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| Maximum Length (cm) |
| 60 TL |
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| Ontario Records |
| Record Length (cm) |
| 56.6 TL |
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| Ontario Range Map |
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Ontario Distribution |
| Whitepine Lake, Whirligig Lake; stocked in other non-native lakes in northcentral and northeastern Ontario |
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| Photographs |
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| Notes |
| colour variant of Brook Trout, formerly recognized as a subspecies; endemic to two small lakes near Sudbury; natural populations became extirpated in 1971 due to acid rain |
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| Information Sources |
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| Becker, G.C. 1983. Fishes of Wisconsin. University of Wisconsin Press. Madison, WI. xii + 1052 pp. |
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| Carlander, K.D. 1969. Handbook of freshwater fishery biology. Volume one. Life history data on freshwater fishes of the United States and Canada, exclusive of the Perciformes. Iowa State University Press. Ames, IA. vi + 752 pp. |
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| Coker, G.A., C.B. Portt, and C.K. Minns. 2001. Morphological and ecological characteristics of Canadian freshwater fishes. Can. MS Rpt. Fish. Aquat. Sci. 2554: iv + 89 p. |
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| Desroches, J-F. and I. Picard. 2013. Poissons d'eau douce du Québec et des Maritimes. Éditions Michel Quintin. Waterloo, QC. 471 pp. |
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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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| Kerr, S.J., A. Kirkpatrick, and T.J. Haxton. 2011. Characteristics of trophy-sized Muskellunge (Esox masquinongy) angled from Ontario waters, 1917-2010. Fisheries Policy Section, Biodiversity Branch. Ontario Ministry of Natural Resources. Peterborough, Ontario. 11 pp. + appendices. |
| Lane, P.A., C.B. Portt, and C.K. Minns. 1996. Nursery habitat characteristics of Great Lakes fishes. Can. MS Rpt. Fish. Aquat. Sci. 2338: v + 42 p. |
| 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 rǸgion de la capitale du Canada. Fish. Res. Board Can. Misc. Spec. Publ. 24: 203 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). |
| 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., H. Espinosa-Pérez, L.T. Findley, C.R. Gilbert, R.N. Lea, N.E. Mandrak, R.L. Mayden, and J.S. Nelson. 2013. Common and scientific names of fishes from the United States, Canada, and Mexico. 7th Edition. American Fisheries Society, Spec. Publ. 34. Bethesda, MD. 243 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. |
| Portt, C.B., G. Coker, and C.K. Minns. 1999. Riverine Habitat Characteristics of Fishes of the Great Lakes Watershed. Can. MS Rpt. Fish. Aquat. Sci. 2481: vi + 62 p. |
| Scott, W.B. 1967. Freshwater fishes of eastern Canada, second edition. University of Toronto Press. Toronto, ON. xii + 137 pp. |
| Scott, W.B. and E.J. Crossman. 1973. Freshwater fishes of Canada. Bull. Fish. Res. Board Can. 184. [1998 Reprint] Galt House Publications Ltd. Oakville, ON. xx + 966 pp. |
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| Smith, C.L. 1985. The inland fishes of New York State. New York State Department of Environmental Conservation. Albany, NY. xi + 522 pp. |
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