Aurora Trout
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Name and Code
Family
Salmonidae - trouts and salmons
Species
Salvelinus fontinalis timagamiensis
Taxonomic Authority
Henn & Rinkenbach, 1925
Common Name(s)
Aurora Trout
French Name
omble aurora
OMNR Code
083
Family TSN
161931
Parent TSN
161999
Species TSN
162003
Conservation Status
Global Rank (GRank)
G5TNRQ (2011-06-08)
National Rank (NRank)
N1 (2011-11-15)
Provincial Rank (SRank)
S1 (1998-04-27)
COSEWIC Status
none
SARO Status
none
AFS Status
Endangered (1,2,3,4,5)
Ecological Value
Ontario Origin
endemic/introduced
General Abundance
rare
Tolerance
intolerant
Economic Importance
sport fish
Habitat and Feeding
General Habitat(s)
lacustrine
Environment
benthopelagic
Trophic Class
invertivore/carnivore
Thermal Regime
coldwater
Habitat Preference
colder waters (<20°C) below the thermocline in cool, clear (oligotrophic) lakes with areas of groundwater upwelling
Reproduction
Reproductive Guild
Nonguarders: Brood hiders: Lithophils
Spawning Habitat(s)
lacustrine
Spawning Season
fall
Spawning Month(s)
October-November
Spawning Temperature (°C)
4-6
Fecundity
1,300-7,000
Nursery Habitat(s)
lacustrine
Size and Age
Adult Length (cm)
23-45 FL
Adult Weight (kg)
0.1-1.0
Age at Maturity (yrs)
2-4
Maximum Length (cm)
60 TL
Maximum Weight (kg)
3.5
Lifespan (yrs)
6-9
Ontario Range Map
Aurora Trout range
Ontario Distribution
Whitepine Lake, Whirligig Lake; stocked in other non-native lakes in northcentral and northeastern Ontario
Photograph
Aurora Trout photograph
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
Ontario Records
Record Length (cm)
56.5 TL
Record Weight (kg)
3.0
Information Sources
Coad, B.W. with H. Waszczuk and I. Labignan. 1995. Encyclopedia of Canadian fishes. Museum of Nature and Canadian Sportfishing Productions. Ottawa and Waterdown, ON. viii + 928 pp.
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+89p.
COSEWIC. 2016. Canadian wildlife species at risk. October 2016. Committee on the Status of Endangered Wildlife in Canada. Gatineau, QC. iv + 113 pp.
Ditz, K., A. Dextrase, and E. Holm. 2009. Ontario Ministry of Natural Resources fish species codes & common names. Ichthyology and Herpetology, Royal Ontario Museum. May 1994. Revised September 2005 by A. Dextrase, MNR and modified January 2009 by E. Holm, ROM.
Holm, E., N. Mandrak, and M. Burridge. 2009. The ROM field guide to freshwater fishes of Ontario. Royal Ontario Museum Science Publication. Toronto, ON. 462 pp.
Integrated Taxonomic Information System (ITIS). 2014. On-line database. (http://www.itis.gov), accessed 07 June 2014.
Jelks, H.L., S.J. Walsh, N.M. Burkhead, S. Contreras-Balderas, E. Díaz-Pardo, D.A. Hendrickson, J. Lyons, N.E. Mandrak, F. McCormick, J.S. Nelson, S.P. Platania, B.A. Porter, C.B. Renaud, J. J. Schmitter-Soto, E.B. Taylor, and M.L. Warren, Jr. 2008. Conservation status of imperiled North American freshwater and diadromous fishes. Fisheries 33(8):372-407.
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., B.J. Parker, and P.M. McKee. 1985. Rare, endangered and extinct fishes in Canada. Syllogeus 54. National Museum of Natural Sciences. Ottawa, ON. 192 pp.
NatureServe. 2015. NatureServe Explorer: An online encyclopedia of life [web application]. Version 7.1. NatureServe. Arlington, Virginia. (http://www.natureserve.org/explorer), accessed 11 June 2016.
Ontario Federation of Anglers & Hunters (OFAH). 2017. Ontario record fish registry. (https://www.ofah.org/wp-content/uploads/2015/01/RecordFishListing-June2017.pdf). Updated March 2017.
Parker, B. and C. Brousseau. 1988. Status of the Aurora Trout, Salvelinus fontinalis timagamiensis, a distinct stock endemic to Canada. Can. Field-Nat. 102(1):87-91.
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.
Scharpf, C. 2006. Annotated checklist of North American freshwater fishes, including subspecies and undescribed forms. Part II: Catostomidae through Mugilidae. American Currents 32(4):1-39.
Snucins, E. and J. Gunn. 2000. Update COSEWIC status report on the Aurora Trout Salvelinus fontinalis timagamiensis in Canada, in COSEWIC assessment and update status report on the Aurora Trout Salvelinus fontinalis timagamiensis in Canada. Committee on the Status of Endangered Wildlife in Canada. Ottawa. 1-13 pp.