Common name: Sharpnose Shiner
available through www.itis.gov
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).
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.
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.
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.
Leo Nico, and Matt Cannister
Revision Date: 4/30/2018
Peer Review Date: 4/1/2016
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.