Oncorhynchus clarkii behnkei
Oncorhynchus clarkii behnkei
(Snake River Finespotted Cutthroat Trout)
Fishes
Native Transplant
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Oncorhynchus clarkii behnkei Montgomery, 1995

Common name: Snake River Finespotted Cutthroat Trout

Synonyms and Other Names: Oncorhynchus clarkii carmichaeli, Jackson Hole cutthroat trout.

Taxonomy: available through www.itis.govITIS logo

Identification: Oncorhynchus clarki behnkei can be distinguished from Yellowstone (O. c. bouvieri) and other varieties of cutthroat trout by the profuse distribution of small spots on body and dorsal, adipose, and caudal fins (Behnke 2002; Page and Burr 2011).

Native Range: Upper Snake River (and tributary streams downstream of and including Gros Ventre River) between Palisades Reservoir and Jackson Lake; Wyoming and Idaho (Behnke 2002; Page and Burr 2011).

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Puerto Rico &
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Interactive maps: Point Distribution Maps

Nonindigenous Occurrences: Oncorhynchus clarkii behnkei has been stocked in the Arkansas, North, and South Platte drainages (Rasmussen 1998).

Means of Introduction: Stocked for sport

Remarks: Finespotted cutthroat trout are derived from Yellowstone cutthroat trout (O. c. bouvieri); these two species are morphologically similar (except for spotting pattern and subtle color differences) and are presently genetically indistinguishable. Some authors consider finespotted cutthroat trout as a morphological variant of O. c. bouvieri, whereas others consider it a valid subspecies (Behnke 2002).

References: (click for full references)

Behnke, R.J. 2002. Trout and salmon of North America. The Free Press, New York, NY.

Page, L.M., and B.M. Burr. 2011. Field guide to freshwater fishes of North America north of Mexico. Peterson Field Guides series. Houghton Mifflin Harcourt, Boston, MA.

Rasmussen, J.L. 1998. Aquatic nuisance species of the Mississippi River basin. 60th Midwest Fish and Wildlife Conference, Aquatic Nuisance Species Symposium, Dec. 7, 1998, Cincinnati, OH.

Other Resources:
FishBase Fact Sheet

Author: Matt Neilson, and Pam Fuller

Revision Date: 5/30/2012

Citation Information:
Matt Neilson, and Pam Fuller, 2017, Oncorhynchus clarkii behnkei Montgomery, 1995: U.S. Geological Survey, Nonindigenous Aquatic Species Database, Gainesville, FL, https://nas.er.usgs.gov/queries/factsheet.aspx?SpeciesID=892, Revision Date: 5/30/2012, Access Date: 11/21/2017

This information is preliminary or provisional and is subject to revision. It is being provided to meet the need for timely best science. The information has not received final approval by the U.S. Geological Survey (USGS) and is provided on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from the authorized or unauthorized use of the information.

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Page Last Modified: Monday, April 24, 2017

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The data represented on this site vary in accuracy, scale, completeness, extent of coverage and origin. It is the user's responsibility to use these data consistent with their intended purpose and within stated limitations. We highly recommend reviewing metadata files prior to interpreting these data.

Citation information: U.S. Geological Survey. [2017]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [11/21/2017].

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