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: Ozark Minnow

Taxonomy: available through www.itis.gov

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).

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: 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).

Other Resources:
Species Summary for Notropis nubilus Ozark minnow (FishBase)

Author: Nico, L.

Peer Review Date: 6/23/2004

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.