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.

Eremichthys acros
(Desert Dace)
Native Transplant

Copyright Info
Eremichthys acros Hubbs and Miller, 1948

Common name: Desert Dace

Taxonomy: available through www.itis.govITIS logo

Identification: La Rivers (1962); Page and Burr (1991).

Size: 7.7 cm.

Native Range: Endemic to warm springs and outflows in Soldier Meadow, Humboldt County, Nevada (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 Eremichthys acros are found here.

StateFirst ObservedLast ObservedTotal HUCs with observations†HUCs with observations†
NV198419841Lower Quinn

Table last updated 5/5/2021

† Populations may not be currently present.

Means of Introduction: Intentionally introduced for conservation purposes (Hendrickson and Brooks 1991).

Status: Established in Nevada. Populations currently stable, and springs devoid of predaceous exotics (Clemmer, personal communication).

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: Introduction sites were on public lands. Listed as a federally threatened species in 1986 (U.S. Fish and Wildlife Service 1993a). In their list of native southwestern fishes transplanted for conservation purposes, Hendrickson and Brooks (1991) indicated that this species was stocked in one locality with a single successful stocking. Locality information was not provided.

Other Resources:
FishBase Summary

Author: Fuller, P.

Revision Date: 6/16/1999

Peer Review Date: 6/16/1999

Citation Information:
Fuller, P., 2021, Eremichthys acros Hubbs and Miller, 1948: U.S. Geological Survey, Nonindigenous Aquatic Species Database, Gainesville, FL, https://nas.er.usgs.gov/queries/FactSheet.aspx?SpeciesID=528, Revision Date: 6/16/1999, Peer Review Date: 6/16/1999, Access Date: 5/6/2021

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. [2021]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [5/6/2021].

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