Ecological Risk Screening Summary - Logperch (Percina caprodes)

Species that are considered uncertain risk need a more in-depth assessment beyond the Ecological Risk Screening Summary to better define the species’ risk to U.S. environments.

Percina caprodes, Logperch, is a fish that is native to North America ranging as far north as Hudson Bay, to as far south as Gulf of America drainages, and from the Mississippi River basin eastward. This species has been introduced outside of its native range in Utah and on the periphery of its native range in Mississippi, New York, Texas, and West Virginia. Other reported nonnative occurrences of P. caprodes in California and Colorado have been found to be misidentifications. The History of Invasiveness for P. caprodes is classified as Data Deficient due to there being a lack of information available on any impacts of introductions. The climate matching analysis for the contiguous United States indicates establishment concern for this species outside its native range. This species had a high climate match throughout much of the eastern and central contiguous United States, overlapping its native range. There were areas in the western United States where it is not native that also had a high climate match. The Certainty of Assessment for this ERSS is classified as Low due to a lack of information on impacts of P. caprodes introduction as well as cryptic species diversity in the genus and a history of misidentification. The Overall Risk Assessment Category for Percina caprodes in the contiguous United States is Uncertain.