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| Trout-perch |
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| Name and Code |
| Family |
| Percopsidae - trout-perches |
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| Species |
| Percopsis omiscomaycus |
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| Taxonomic Authority |
| (Walbaum 1792) |
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| Common Name(s) |
| Trout-perch |
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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 (1988-11-22) |
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| Ecological Value |
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| Economic Importance |
| forage fish; bait fish (incidental) |
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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 |
| deeper waters (9-13 m) of lakes, deep flowing pools of creeks and small to large rivers, usually over sand or gravel bottoms; preferred water temperature range 10-16°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 Season |
| spring-summer |
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| Spawning Month(s) |
| May-August |
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| Spawning Temperature (°C) |
| 10-17 |
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| Nursery Habitat(s) |
| lacustrine; riverine |
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| Size and Age |
| Adult Length (cm) |
| 6.4-11.4 TL |
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| Adult Weight (kg) |
| 0.002-0.014 |
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| Age at Maturity (yrs) |
| 1-2 (m); 2-3 (f) |
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| Maximum Length (cm) |
| 17.2 TL |
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| Maximum Weight (kg) |
| no data |
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| Lifespan (yrs) |
| 3-4 (m); 4-8 (f) |
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| Ontario Records |
| Record Length (cm) |
| 15.0 TL |
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| Ontario Range Map |
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Ontario Distribution |
| widespread throughout the province |
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| Photographs |
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| Notes |
| populations may fluctuate from year to year; large females and most males die after spawning, but a few individuals live to spawn twice; moderately intolerant of turbidity; diurnal onshore movement occurs in lakes |
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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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| Cudmore, B. and N.E. Mandrak. 2018. The baitfish primer: a guide to identifying and protecting Ontario's baitfishes. Fisheries and Oceans Canada, Bait Association of Ontario, Ontario Ministry of Natural Resources and Forestry, Ontario Federation of Anglers and Hunters. March 2018. 40 pp. |
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| Ditz, K. and E. Holm. 2023. Ontario Fish Species Codes and Names. Ichthyology and Herpetology, Royal Ontario Museum. May 1994. Modified February 2023. |
| Goldstein, R.M. and T.P. Simon. 1999. Toward a united definition of guild structure for feeding ecology of North American freshwater fishes. Pages 123-202 in T.P. Simon [Ed]. Assessing the sustainability and biological integrity of water resources using fish communities. CRC Press. Boca Raton, FL. xx + 671 pp. |
| 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. |
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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. |
| 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. and K.F. Lagler. 1964. Fishes of the Great Lakes region. University of Michigan Press. Ann Arbor, MI. xv + 213 pp. |
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| Integrated Taxonomic Information System (ITIS). 2023. On-line database. http://www.itis.gov, retrieved 02 May 2023. |
| Jenkins, R.E. and N.M. Burkhead. 1993. Freshwater fishes of Virginia. American Fisheries Society. Bethesda, MD. xxiii + 1079 pp. |
| 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. |
| 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. |
| McPhail, J.D. and C.C. Lindsey. 1970. Freshwater fishes of northwestern Canada and Alaska. Bull. Fish. Res. Board Can. 173. Ottawa, ON. 381 pp. |
| 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). |
| Nelson, J.S. and M.J. Paetz. 1992. The fishes of Alberta, 2nd edition. The University of Alberta Press and The University of Calgary Press. Edmonton and Calgary, AB. xxvi + 437 pp. |
| 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. |
| 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. |
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