splake (backcross)
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Name and Code
Family
Salmonidae - trouts and salmons
Species
Salvelinus fontinalis x S. namaycush
Taxonomic Authority
not applicable
Common Name(s)
splake (backcross)
French Name
moulac
OMNR Code
082
Family TSN
161931
Parent TSN
161999
Species TSN
not applicable
Conservation Status
Global Rank (GRank)
GNA
National Rank (NRank)
NNA
Provincial Rank (SRank)
SNA (1998-04-27)
COSEWIC Status
none
SARO Status
none
AFS Status
none
Ecological Value
Ontario Origin
artificial hybrid
General Abundance
uncommon
Tolerance
intolerant
Economic Importance
sport fish
Habitat and Feeding
General Habitat(s)
lacustrine
Environment
benthopelagic
Trophic Class
invertivore/carnivore
Thermal Regime
coldwater
Habitat Preference
mid-waters (9-11m) of lakes, near the thermocline; preferred water temperature range 10-16°C
Reproduction
Reproductive Guild
Nonguarders: Brood hiders: Lithophils
Spawning Habitat(s)
lacustrine
Spawning Season
fall
Spawning Month(s)
October-November
Spawning Temperature (°C)
6-14
Fecundity
855-6,075
Nursery Habitat(s)
lacustrine
Size and Age
Adult Length (cm)
34.3-63.5 TL
Adult Weight (kg)
0.35-2.6
Age at Maturity (yrs)
3-4
Maximum Length (cm)
88.9 TL
Maximum Weight (kg)
9.39
Lifespan (yrs)
7-9
Ontario Range Map
splake (backcross) range
Ontario Distribution
introduced into Lake Superior, Lake Huron and many inland lakes in northeastern and south-central Ontario; also a few lakes in northwestern Ontario
Photograph
splake (backcross) photograph
Notes
fertile progeny of male Brook Trout crossed with female Lake Trout; also includes the F1 backcross (Salvelinus fontinalis x S. namaycush) x S. namaycush
Ontario Records
Record Length (cm)
88.9 TL
Record Weight (kg)
9.39
Information Sources
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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.
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.
Cooper, E.L. 1983. Fishes of Pennsylvania and the northeastern United States. Pennsylvania State University Press. University Park and London. vii + 243 pp.
Cudmore-Vokey, B. and E.J. Crossman. 2000. Checklists of the fish fauna of the Laurentian Great Lakes and their connecting channels. Can. MS Rpt. Fish. Aquat. Sci. 2550:v+39p.
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.
Goodyear, C.S., 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 thirteen: Reproductive characteristics of Great Lakes fishes. U.S. Fish and Wildlife Service. Washington, DC. FWS/OBS-82/52.
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.
Hubbs, C.L., K.F. Lagler, and G.R. Smith. 2004. Fishes of the Great Lakes region, revised edition. University of Michigan Press. Ann Arbor, MI. xvii + 276 pp.
Integrated Taxonomic Information System (ITIS). 2014. On-line database. (http://www.itis.gov), accessed 07 June 2014.
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.
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.
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.
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.
Smith, C.L. 1985. The inland fishes of New York State. New York State Department of Environmental Conservation. Albany, NY. xi + 522 pp.
Stewart, K.W. and D.A. Watkinson. 2004. The freshwater fishes of Manitoba. University of Manitoba Press. Winnipeg, MB. xvii + 276 pp.
Wismer, D.A. and A.E. Christie. 1987. Temperature relationships of Great Lakes fishes: a data compilation. Great Lakes Fish. Comm. Spec. Pub. 87-3. 195 pp.