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 nubilus
Notropis nubilus
(Ozark Minnow)
Native Transplant

Copyright Info
Notropis nubilus (Forbes in Jordan, 1878)

Common name: Ozark Minnow

Taxonomy: available through www.itis.govITIS logo

Identification: Becker (1983); Robison and Buchanan (1988); Page and Burr (1991); Pflieger (1997). Another name is Dionda nubila.

Size: 9.3 cm.

Native Range: Disjunct populations in upper Red River system, northern Wisconsin; Mississippi River tributaries in southeastern Minnesota, eastern Iowa, southern Wisconsin, and northern Illinois; Ozark Mountain drainages in southern Missouri, southeastern Kansas, northern Arkansas, and northeastern Oklahoma; and Boggy Creek system, Oklahoma (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:

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 nubilus are found here.

StateFirst ObservedLast ObservedTotal HUCs with observations†HUCs with observations†
IL200720071Lower Fox

Table last updated 4/21/2024

† Populations may not be currently present.

Means of Introduction: Possible bait bucket release (Miller and Robison 1973).

Status: Reported from Oklahoma.

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: There is some confusion in the literature concerning the presence of this species in southern Oklahoma and whether it is native or introduced to this region. Miller and Robison (1973) stated that it is "possibly present in the Blue River and elsewhere as a result of bait bucket introductions." The Blue River is a tributary of the Red River and is near a pair of other Red River tributaries, Clear Boggy and Muddy Boggy creeks. Page and Burr (1991) apparently considered it native to the Boggy Creek system of Oklahoma, but added that the species is possibly extinct in that water system. Presumably their "Boggy Creek system" represents Clear Boggy Creek, Muddy Boggy Creek, or both. Lee et al. (1980 et seq.) did not discuss nor map records of this species from Blue River, Boggy Creek, nor any other part of southern Oklahoma. Similarly, Cross et al. (1986) did not list it as occurring in the Red River drainage. Fossil remains have been found in southwestern Kansas, providing evidence of a more western distribution during glaciation (Becker 1983; Cross et al. 1986).

FishBase Summary

Author: Nico, L.

Revision Date: 6/23/2004

Peer Review Date: 6/23/2004

Citation Information:
Nico, L., 2024, Notropis nubilus (Forbes in Jordan, 1878): U.S. Geological Survey, Nonindigenous Aquatic Species Database, Gainesville, FL, https://nas.er.usgs.gov/queries/FactSheet.aspx?SpeciesID=603, Revision Date: 6/23/2004, Peer Review Date: 6/23/2004, Access Date: 4/22/2024

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.


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. [2024]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [4/22/2024].

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