Disclaimer:

The Nonindigenous Occurrences section of the NAS species profiles has a new structure. The section is now dynamically updated from the NAS database to ensure that it contains the most current and accurate information. Occurrences are summarized in Table 1, alphabetically by state, with years of earliest and most recent observations, and the tally and names of drainages where the species was observed. The table contains hyperlinks to collections tables of specimens based on the states, years, and drainages selected. References to specimens that were not obtained through sighting reports and personal communications are found through the hyperlink in the Table 1 caption or through the individual specimens linked in the collections tables.

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Common name: Shortnose Sucker

Taxonomy: available through www.itis.gov

Identification: Page and Burr (1991)

Size: up to 50 cm SL

Native Range: California and Oregon: Upper Klamath Lake and its tributatires, and the Lost River system (Page and Burr 1991; USFWS 1993)

Alaska	Hawaii	Puerto Rico & Virgin Islands	Guam Saipan

Native range data for this species provided in part by NatureServe

Hydrologic Unit Codes (HUCs) Explained
Interactive maps: Point Distribution Maps

Means of Introduction: Unknown.

Status: Established in Oregon.

Impact of Introduction: The impacts of this species are currently unknown, as no studies have been done to determine how it has affected ecosystems in the invaded range. The absence of data does not equate to lack of effects. It does, however, mean that research is required to evaluate effects before conclusions can be made.

Remarks: This species is currently on the Endangered Species List.

References: (click for full references)

Page, L.M. and B.M. Burr. 1991. A field guide to freshwater fishes of North America north of Mexico. The Peterson Guide Series, vol. 42. Houghton Mifflin Company, Boston, MA.

U.S. Fish and Wildlife Service. 1993. Lost River (Deltistes luxatus) and shortnose (Chasmistes brevirostris) sucker recovery plan. U.S. Fish and Wildlife Service, Portland, OR.

Other Resources:
California Fish Species - University of California Davis

Environmental Conservation Online System - U.S. Fish and Wildlife Service

Author: Neilson, M.E.

Peer Review Date: 8/22/2011

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.