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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.




Notropis oxyrhynchus
Notropis oxyrhynchus
(Sharpnose Shiner)
Fishes
Native Transplant
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Notropis oxyrhynchus Hubbs and Bonham, 1951

Common name: Sharpnose Shiner

Taxonomy: available through www.itis.govITIS logo

Identification: Hubbs et al. (1991); Page and Burr (1991). Maximum size: 6.5 cm.

Native Range: Brazos River and lower portions of large tributaries, Texas (Page and Burr 1991).

Native range data for this species provided in part by NatureServe NS logo
Hydrologic Unit Codes (HUCs) Explained
Interactive maps: Point Distribution Maps

Nonindigenous Occurrences: This species has been recorded from (and apparently introduced into) the Colorado River drainage of Texas near Austin (Yurgens 1954; Lee et al. 1980 et seq.; Conner and Suttkus 1986).Warren et al. (2000) lists N. oxyrhynchus as possibly established in the Colorado River, but that status is likely based on the transplanted record by Lee et al. (1980). The current status of N. oxyrhynchus is unknown in the Colorado River.

Table 1. States with nonindigenous occurrences, the earliest and latest observations in each state, and the tally and names of HUCs with observations†. Names and dates are hyperlinked to their relevant specimen records. The list of references for all nonindigenous occurrences of Notropis oxyrhynchus are found here.

StateYear of earliest observationYear of last observationTotal HUCs with observations†HUCs with observations†
Texas195119802Austin-Travis Lakes; Middle Colorado

Table last updated 9/30/2019

† Populations may not be currently present.


Means of Introduction: Unknown. Yurgens (1954) speculated that this species and several other recently discovered minnows were likely introduced as a bait release into the Colorado River drainage. He based his conclusion on the fact that bait dealers had been transporting Brazos River minnows in large numbers to fishing camps on Lake Travis near Austin.

Status: Possibly established in Texas in the Colorado River outside its native range.

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: Yurgens (1954) based his report on the capture of a single specimen taken from Lake Travis. Although he argued that the Lake Travis record was likely the result of an introduction, Yurgens did not rule out the possibility that N. oxyrhynchus is native to the upper part of the Colorado River. Hubbs et al. (1991) stated that a presumed introduced population exists in the Colorado River above Buchanan Reservoir. Notropis oxyrhynchus is also known from the upper Red River (Miller 1955). Conner and Suttkus (1986) noted that its occurrences in both the Colorado River and Red River are almost certainly the result of introductions by man. In contrast, Cross et al. (1986) listed it as native to the upper Red River and attributed its presence to past capture by the Red River of drainage that formerly entered the Brazos.

References: (click for full references)

Warren, M.L. Jr., B.M. Burr, S.J. Walsh, H.L. Bart Jr., R.C. Cashner, D.A. Etnier, B.J. Freeman, B.R. Kuhajda, R.L Mayden, H.W. Robison, S.T. Ross, and W.C. Starnes. 2000. Diversity, distribution and conservation status of the native freshwater fishes of the southern United States. Fisheries 25(10): 7-29.

Other Resources:
FishBase Summary

Author: Leo Nico, and Matt Cannister

Revision Date: 4/30/2018

Peer Review Date: 4/1/2016

Citation Information:
Leo Nico, and Matt Cannister, 2019, Notropis oxyrhynchus Hubbs and Bonham, 1951: U.S. Geological Survey, Nonindigenous Aquatic Species Database, Gainesville, FL, https://nas.er.usgs.gov/queries/FactSheet.aspx?SpeciesID=604, Revision Date: 4/30/2018, Peer Review Date: 4/1/2016, Access Date: 11/15/2019

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.

Disclaimer:

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. [2019]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [11/15/2019].

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