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| Longnose Gar |
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| Name and Code |
| Family |
| Lepisosteidae - gars |
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| Species |
| Lepisosteus osseus |
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| Taxonomic Authority |
| (Linnaeus 1758) |
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| Common Name(s) |
| Longnose Gar |
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| French Name |
| lépisosté osseux |
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| Conservation Status |
| Global Rank (GRank) |
| G5 (2016-02-09) |
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| National Rank (NRank) |
| N4N5 (2016-02-09) |
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| Provincial Rank (SRank) |
| S4 (1988-11-22) |
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| Ecological Value |
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| Economic Importance |
| sport fish |
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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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| Habitat Preference |
| vegetated, sluggish pools, backwaters and oxbows of medium to large rivers and weedy, quiet shallows of warm lakes with silty, sandy substrates; often near logs and brushpiles; preferred water temperature range 25.3-33.1°C |
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| Reproduction |
| Reproductive Guild |
| Nonguarders: Open substratum spawners: Phyto-lithophils |
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| Spawning Habitat(s) |
| lacustrine |
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| Spawning Month(s) |
| May-June |
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| Spawning Temperature (°C) |
| 16.5-21 |
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| Nursery Habitat(s) |
| lacustrine |
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| Size and Age |
| Adult Length (cm) |
| 66.0-121.9 TL |
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| Adult Weight (kg) |
| 0.8-6.8 |
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| Age at Maturity (yrs) |
| 3-4 (m); 4-6 (f) |
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| Maximum Length (cm) |
| 200 TL |
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| Maximum Weight (kg) |
| 37.19 |
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| Lifespan (yrs) |
| 9-17 (m); 16-22 (f) |
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| Ontario Records |
| Record Length (cm) |
| 137.2 TL |
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| Ontario Range Map |
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Ontario Distribution |
| Great Lakes and tributaries, St. Lawrence River, Ottawa River and tributaries |
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| Photographs |
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| Notes |
| tolerant of high water temperature, turbidity and low dissolved oxygen |
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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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| 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. |
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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. |
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| 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. |
| 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. 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. |
| Meador, R.M. and D.M. Carlisle. 2007. Quantifying tolerance indicator values for common stream fishes of the United States. Ecol. Indicators. 7:329-338. |
| 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). |
| 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. 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. |
| Ross, S.T. 2001. The inland fishes of Mississippi. University Press of Mississippi. xx + 624 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. |
| Scott, W.B. and M.G. Scott. 1988. Atlantic fishes of Canada. Can. Bull. Fish. Aquat. Sci. 219. University of Toronto Press. Toronto, ON. xxx + 731 pp. |
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