Ecological Risk Screening Summary - Red Shiner (Cyprinella lutrensis) - High Risk

Species that are considered high risk have a well-documented history of invasiveness in at least one location globally, and a high or medium climate match to the contiguous United States.

Red Shiner (Cyprinella lutrensis) is a small freshwater minnow native to northern Mexico and much of the central United States. Introductions to other areas throughout the United States have occurred via bait fish movement, aquarium releases, and fish movement through watersheds. C. lutrensis is established outside its native range in the United States in Alabama, Arizona, California, Colorado, Georgia, Illinois, Nevada, New Mexico, North Carolina, Utah, and Wyoming. C. lutrensis are known to displace native species, as well as dilute the gene pool for native Cyprinella via hybridization. History of invasiveness is high. This species has a high climate match with the contiguous United States, including areas where it is native, as well as many other areas. The only areas with medium or low matches were in the Pacific Northwest and parts of New England and New York. Certainty of assessment is high because quality general information is available about the species and there is a preponderance of evidence from reputable sources regarding the history of invasiveness. The overall risk for this species is high.