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| Tench |
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| Name and Code |
| Family |
| Tincidae - tenches |
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| Taxonomic Authority |
| (Linnaeus 1758) |
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| Conservation Status |
| Global Rank (GRank) |
| G5 (1996-09-17) |
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| National Rank (NRank) |
| NNA (2017-12-22) |
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| Provincial Rank (SRank) |
| SNR |
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| Ecological Value |
| Ontario Origin |
| introduced |
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| General Abundance |
| limited distribution |
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| Economic Importance |
| invasive species |
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| Length-Weight Regression Coefficents |
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| Habitat and Feeding |
| General Habitat(s) |
| lacustrine; riverine |
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| Trophic Class |
| invertivore/herbivore |
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| Habitat Preference |
| clear, slow streams, shallow weedy lakes, ponds, wetlands and impoundments with clay, silt, sand or detritus substrates; preferred water temperature range 28-34°C |
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| Reproduction |
| Reproductive Guild |
| Nonguarders: Open substratum spawners: Phytophils |
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| Spawning Habitat(s) |
| lacustrine; riverine |
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| Spawning Season |
| spring-summer |
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| Spawning Month(s) |
| June-July |
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| Spawning Temperature (°C) |
| 20-24 |
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| Fecundity |
| 18,400-1,241,200 |
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| Nursery Habitat(s) |
| lacustrine; riverine |
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| Size and Age |
| Adult Length (cm) |
| 20-40 TL |
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| Adult Weight (kg) |
| 0.16-1.36 |
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| Age at Maturity (yrs) |
| 3-4 (m); 4-5 (f) |
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| Maximum Length (cm) |
| 84 TL |
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| Ontario Records |
| Record Length (cm) |
| 46.5 TL |
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| Ontario Range Map |
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Ontario Distribution |
| eastern Lake Ontario (Bay of Quinte), St. Lawrence River (Lake St. Francis); first reported from Ontario waters of the upper St. Lawrence River near Cornwall in 2016 |
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| Photographs |
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| Notes |
| indigenous to Eurasia; tolerant of low dissolved oxygen |
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| Information Sources |
| 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.
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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. |
| 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. |
| Cudmore, B., and N.E. Mandrak. 2011. Biological synopsis of Tench (Tinca tinca). Can. MS Rpt. Fish. Aquat. Sci. 2948: v + 20p. |
| 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. |
| Desroches, J-F. and I. Picard. 2013. Poissons d’eau douce du Québec et des Maritimes. Éditions Michel Quintin. Waterloo, QC. 471 pp. |
| 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. |
| 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. |
| Integrated Taxonomic Information System (ITIS). 2023. On-line database. http://www.itis.gov, retrieved 02 May 2023. |
| Kottelat, M. and J. Freyhof. 2007. Handbook of European freshwater fishes. Cornol, Switzerland. xiii + 646 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. |
| Lui, K., M. Butler, M. Allen, E. Snyder, J. da Silva, B. Brownson and A. Ecclestone. 2010. Field guide to aquatic invasive species (3rd Edition): identification, collection and reporting of aquatic invasive species in Ontario waters. Ontario Ministry of Natural Resources. |
| McPhail, J.D. 2007. The freshwater fishes of British Columbia. The University of Alberta Press. Edmonton, AB. lxxiv + 620 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). |
| 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. |
| Schofield, P.J., J.D. Williams, L.G. Nico, P. Fuller, and M.R. Thomas. 2005. Foreign nonindigenous carps and minnows (Cyprinidae) in the United States - A guide to their identification, distribution, and biology: U.S. Geological Survey Scientific Investigations Report 2005-5041. 103 p. |
| 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. 2005. Annotated checklist of North American freshwater fishes, including subspecies and undescribed forms. Part I: Petromyzontidae through Cyprinidae. American Currents 31(4):1-44. |
| Warren, M.L., Jr., and B.M. Burr [Eds]. 2014. Freshwater Fishes of North America, Volume 1: Petromyzontidae to Catostomidae. Johns Hopkins University Press, Baltimore, Maryland. xv + 644 pp. |
| Werner, R.G. 2004. Freshwater fishes of the northeastern United States: a field guide. Syracuse University Press. Syracuse, NY. xiv + 335 pp. |
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