Common name: Pacific Sharpnose Shark
available through www.itis.gov
A single specimen was collected from West Main Canal in Yuma, Arizona in 2010 (Gilbert 2010). The species identification is not certain. Body dimensions resemble Carcharhinus cerdale, but fin placement is typical of Rhizoprionodon longurio (J. Castro, personal communication). Both species are common to upper Gulf of California.
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 Rhizoprionodon longurio are found here.
Table last updated 2/27/2023
† Populations may not be currently present.
Means of Introduction: Released by an individual.
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)
Gilbert, J. 2010. Dead shark, illegal fish found in Yuma canals. Yuma Sun (November 24). http://www.yumasun.com/articles/fish-65664-yuma-canal.html
Revision Date: 7/30/2019
Peer Review Date: 3/6/2011
Fuller, P., 2023, Rhizoprionodon longurio (Jordan and Gilbert, 1882): U.S. Geological Survey, Nonindigenous Aquatic Species Database, Gainesville, FL, https://nas.er.usgs.gov/queries/FactSheet.aspx?SpeciesID=2839, Revision Date: 7/30/2019, Peer Review Date: 3/6/2011, Access Date: 3/21/2023
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.