|
|
|
| Flathead Catfish |
|
|
| Return To Search |
|
|
| Name and Code |
| Family |
| Ictaluridae - North American catfishes |
|
| Species |
| Pylodictis olivaris |
|
| Taxonomic Authority |
| (Rafinesque 1818) |
|
| Common Name(s) |
| Flathead Catfish |
|
| French Name |
| barbue à tête plate |
|
|
|
|
|
|
|
|
|
|
| Conservation Status |
| Global Rank (GRank) |
| G5 (2016-02-09) |
|
| National Rank (NRank) |
| NNA (2017-12-22) |
|
| Provincial Rank (SRank) |
| SNA (1997-10-02) |
|
| COSEWIC Status |
| Data Deficient (Apr 2008) |
|
| SARO Status |
| Data Deficient |
|
|
|
|
|
|
| Ecological Value |
| Ontario Origin |
| natural dispersal |
|
|
|
|
|
|
|
|
| Length-Weight Regression Coefficents |
|
|
|
|
|
|
|
|
|
|
| Habitat and Feeding |
| General Habitat(s) |
| lacustrine; riverine |
|
|
|
| Trophic Class |
| invertivore/carnivore |
|
|
|
| Habitat Preference |
| shallow areas (<3 m) among rocks or large woody debris in low- to moderate-gradient, small to large rivers, lakes and impoundments; juveniles inhabit shallow riffles with coarse substrates; preferred water temperature range 31.5-33.5°C |
|
|
| Reproduction |
| Reproductive Guild |
| Guarders: Nest spawners: Speleophils |
|
| Spawning Habitat(s) |
| riverine |
|
|
|
| Spawning Month(s) |
| June-July |
|
| Spawning Temperature (°C) |
| 19-24 |
|
|
|
| Nursery Habitat(s) |
| riverine |
|
|
| Size and Age |
| Adult Length (cm) |
| 39.0-75.0 TL |
|
| Adult Weight (kg) |
| 1.5-4.0 |
|
| Age at Maturity (yrs) |
| 3-5 (m); 4-6 (f) |
|
| Maximum Length (cm) |
| 155 TL |
|
| Maximum Weight (kg) |
| 63.45 |
|
|
|
|
| Ontario Records |
| Record Length (cm) |
| 101.0 TL |
|
|
|
|
|
|
|
| Ontario Range Map |
 |
|
Ontario Distribution |
| western Lake Erie, Lake St. Clair, lower Thames River; first reported from Ontario waters of Lake Erie in 1978 |
|
|
| Photographs |
 |
|
 |
|
| Notes |
| tolerant of salinity (11 ppt); low tolerance to fluctuating water levels; hybrids with Channel Catfish reported |
|
|
|
| Information Sources |
| Bailey, R.M., W.C. Latta, and G.R. Smith. 2004. An atlas of Michigan fishes with keys and illustrations for their identification. University of Michigan Museum of Zoology Miscellaneous Publications No. 192. iv + 215 pp. |
| Barbour, M.T., J. Gerritsen, B.D. Snyder, and J.B. Stribling. 1999. Tolerance and trophic guilds of selected fish species. Appendix C in Rapid bioassessment protocols for use in streams and wadeable rivers: periphyton, benthic macroinvertebrates and fish, second edition. EPA 841-B-99-002. U.S. Environmental Protection Agency; Office of Water. Washington, DC. |
| Becker, G.C. 1983. Fishes of Wisconsin. University of Wisconsin Press. Madison, WI. xii + 1052 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. |
| 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. |
| Cooper, E.L. 1983. Fishes of Pennsylvania and the northeastern United States. Pennsylvania State University Press. University Park and London. vii + 243 pp. |
| COSEWIC. 2023. Canadian wildlife species at risk. October 2023. Committee on the Status of Endangered Wildlife in Canada. Gatineau, QC. iv + 130 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. |
| Etnier, D.A. and W.C. Starnes. 1993. The fishes of Tennessee. [2nd printing, 2001]. The University of Tennessee Press. Knoxville, TN. xiv + 689 pp. |
| 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. |
| Goodchild, C.D. 1993. Status of the Flathead Catfish, Pylodictis olivaris, in Canada. Can. Field-Nat. 107(4):410-416. |
| 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. and K.F. Lagler. 1964. Fishes of the Great Lakes region. University of Michigan Press. Ann Arbor, MI. xv + 213 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. |
| Illes, C., J.E. Colm, N.E. Mandrak, and D.M. Marson. 2019. Flathead Catfish (Pylodictis olivaris) reproduction in Canada. Can. Field-Nat. 133(4):372-380. |
| 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. |
| 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. |
| 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 Ministry of Natural Resources (OMNR). 2013. Extinct, not at risk and data deficient species in Ontario list, 18 April 2013. |
| 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. |
| Ross, S.T. 2001. The inland fishes of Mississippi. University Press of Mississippi. xx + 624 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. |
| Simon, T.P. 1999. Assessment of Balon's reproductive guilds with application to midwestern North American freshwater fishes. Pages 97-122 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. |
| Simon, T.P. and R. Wallus. 2003. Reproductive biology and early life history of fishes in the Ohio River drainage. Volume 3. Ictaluridae ? catfish and madtoms. CRC Press. Boca Raton, FL. xxiv + 204 pp. |
| Smith, P.W. 2002. The fishes of Illinois. University of Illinois Press. Urbana and Chicago, IL. xxix + 314 pp. |
| Stauffer, Jr., J.R., J.M. Boltz and L.R. White. 1995. The fishes of West Virginia. Reprinted from The Proceedings of the Academy of Natural Sciences of Philadelphia 146:1-389. Pennsylvania State University. 389 pp. |
| Stauffer, Jr., J.R., R.W. Criswell and D.P. Fischer. 2016. The fishes of Pennsylvania. Cichlid Press. El Paso, TX. 556 pp. |
| Trautman, M.B. 1981. The fishes of Ohio with illustrated keys, revised edition. Ohio State University Press. Columbus, OH. xxv + 782 pp. |
| Warren, M.L., Jr., and B.M. Burr [Eds]. 2020. Freshwater Fishes of North America, Volume 2: Characidae to Poeciliidae. Johns Hopkins University Press, Baltimore, Maryland. xx + 911 pp. |
|