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Round Whitefish |
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Name and Code |
Family |
Salmonidae - trouts and salmons |
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Species |
Prosopium cylindraceum |
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Taxonomic Authority |
(Pennant 1784) |
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Common Name(s) |
Round Whitefish |
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French Name |
ménomini rond |
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Conservation Status |
Global Rank (GRank) |
G5 (2015-06-02) |
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National Rank (NRank) |
N5B, N5N, N5M (2017-12-27) |
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Provincial Rank (SRank) |
S4 (1997-10-07) |
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Ecological Value |
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Economic Importance |
commercial fishery |
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Length-Weight Regression Coefficents |
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Habitat and Feeding |
General Habitat(s) |
lacustrine; riverine |
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Environment |
benthopelagic |
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Trophic Class |
invertivore/carnivore |
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Habitat Preference |
shallow waters (<37 m) of deep lakes and clear streams; preferred water temperature 17.5°C |
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Reproduction |
Reproductive Guild |
Nonguarders: Open substratum spawners: Lithophils |
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Spawning Habitat(s) |
lacustrine; riverine |
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Spawning Month(s) |
November-December |
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Spawning Temperature (°C) |
2-4.5 |
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Nursery Habitat(s) |
lacustrine; riverine |
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Size and Age |
Adult Length (cm) |
22.9-39.4 TL |
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Adult Weight (kg) |
0.09-0.47 |
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Age at Maturity (yrs) |
2-4 |
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Maximum Length (cm) |
59.0 TL |
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Ontario Records |
Record Length (cm) |
54.2 TL |
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Ontario Range Map |
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Ontario Distribution |
Great Lakes (except Erie), Lake Nipigon, central, eastern and northern Ontario |
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Photographs |
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Notes |
reported in brackish waters on Hudson Bay |
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Information Sources |
Becker, G.C. 1983. Fishes of Wisconsin. University of Wisconsin Press. Madison, WI. xii + 1052 pp. |
Bernatchez, L. and M. Giroux. 2000. Les poissons d'eau douce du Québec et leur répartition dans l'Est du Canada. Broquet Inc. Saint-Constant, QC. 350 pp. |
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 + 39 p. |
Ditz, K. and E. Holm. 2023. Ontario Fish Species Codes and Names. Ichthyology and Herpetology, Royal Ontario Museum. May 1994. Modified February 2023. |
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. 2021. A field guide to freshwater fishes of Ontario, second edition. Royal Ontario Museum Science Publication. Toronto, ON. 486 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). 2023. On-line database. http://www.itis.gov, retrieved 02 May 2023. |
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). 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., 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. |
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