Common name: Santa Ana Sucker
available through www.itis.gov
Identification: Moyle (1976); Page and Burr (1991).
Size: 25 cm.
Native Range: Los Angeles, San Gabriel, and Santa Ana River drainages, southern California (Page and Burr 1991).
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 Pantosteus santaanae are found here.
Table last updated 2/27/2023
† Populations may not be currently present.
Means of Introduction: The two suckers introduced into River Springs, California, were accidentally introduced from the San Gabriel River during the transplant of speckled dace Rhinichthys osculus (Miller 1968). The means of introduction in the other instances are unknown.
Status: Established in parts of California outside of its native range. Later visits to River Springs indicated the species did not survive at that site (Miller 1968).
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)
Bell, M. A. 1978. Fishes of the Santa Clara River system, southern California. Natural History Museum of Los Angeles County, California, Contributions in Science Series 295:1--20.
Buth, D.G. and C.B. Crabtree. 1982. Genetic variability and population structure of Catostomus santaanae in the Santa Clara drainage. Copeia 1982(2):439-444.
Miller, R. R. 1968. Records of some native freshwater fishes transplanted into various waters of California, Baja California, and Nevada. California Fish and Game 54(3):170--179.
Moyle, P. B. 1976. Inland fishes of California. University of California Press, Berkeley, CA.
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.
Swift, C. C., T. R. Haglund, M. Ruiz, and R. N. Fisher. 1993. The status and distribution of the freshwater fishes of southern California. Bulletin of the Southern California Academy of Science 92(3):101-167.
U.S. Fish and Wildlife Service. 1997. Endangered and threatened species; Review of plant and animal taxa; Proposed Rule. 50 CFR 17. Federal Register, September 19, 1997. 62(182):49397--49411. U.S. Department of the Interior, Washington, DC.
Revision Date: 8/24/2012
Peer Review Date: 8/24/2012
Fuller, P., 2023, Pantosteus santaanae Snyder, 1908: U.S. Geological Survey, Nonindigenous Aquatic Species Database, Gainesville, FL, https://nas.er.usgs.gov/queries/FactSheet.aspx?speciesID=354, Revision Date: 8/24/2012, Peer Review Date: 8/24/2012, Access Date: 3/28/2023
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.