Common name: Railroad Valley Springfish
available through www.itis.gov
Identification: La Rivers (1962); Sigler and Sigler (1987); Page and Burr (1991).
Size: 6 cm.
Native Range: Springs in Railroad Valley, Nye County, Nevada (Page and Burr 1991).
Puerto Rico &
Hydrologic Unit Codes (HUCs) Explained
Native range data for this species provided in part by NatureServe
Interactive maps: Point Distribution Maps
In 1947, six individuals were stocked into artificial ponds created near a natural seep of warm water, at Sodaville, in the southeastern part of Mineral County, Nevada (La Rivers 1962; Hubbs et al. 1974). The species was introduced into several pools along the outflow of Chimney Hot Springs (also called Chimney Springs), Nye County, in 1978 and again in 1982 (Deacon and Williams 1984; Williams and Williams 1989).
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 Crenichthys nevadae are found here.
Table last updated 10/4/2018
† Populations may not be currently present.
Means of Introduction: The Sodaville introduction was performed by Thomas Trelease of the Nevada Fish and Game Commission in response to the possible stocking of bass into the species' native habitat (La Rivers 1962). The U.S. Bureau of Land Management and Nevada Department of Wildlife introduced the species into Chimney Hot Springs in response to deterioration of its native habitats (Williams and Williams 1989). According to Williams and Williams (1989), the purpose of these introductions was to establish a refuge population for conservation of the species.
Status: Transplants have helped secure the long-term viability of this species. The population at Chimney Hot Springs, Nevada, was estimated at 1,881 adults in 1985; however, various habitat perturbations, including low water levels, unstable water temperatures, and trespass by cattle contributed to a population decline. The Sodaville population appeared stable during the late 1980s, although no firm population data was available (Williams and Williams 1989).
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)
La Rivers, I. 1962. Fishes and fisheries of Nevada. Nevada State Print Office, Carson City, NV.
Page, L. M., and B. M. Burr. 1991. A field guide to freshwater fishes of North America north of Mexico. The Peterson Field Guide Series, volume 42. Houghton Mifflin Company, Boston, MA.
U.S. Fish and Wildlife Service. 1993a. Endangered and threatened wildlife and plants. 50 CFR 17.11 & 17.12. Federal Register, August 23, 1993. U.S. Department of the Interior, Washington, DC. 40 pp.
Revision Date: 4/30/2018
Peer Review Date: 4/1/2016
Fuller, P., 2018, Crenichthys nevadae Hubbs, 1932: U.S. Geological Survey, Nonindigenous Aquatic Species Database, Gainesville, FL, https://nas.er.usgs.gov/queries/FactSheet.aspx?SpeciesID=720, Revision Date: 4/30/2018, Peer Review Date: 4/1/2016, Access Date: 11/16/2018
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.