Common name: Wami Tilapia
available through www.itis.gov
Hydrologic Unit Codes (HUCs) Explained
Puerto Rico &
Interactive maps: Point Distribution Maps
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 Oreochromis urolepis hornorum are found here.
Table last updated 9/30/2019
† Populations may not be currently present.
Means of Introduction: Releases in California were made for aquatic plant control and to reduce mosquito and chironomid midge populations. The introductions were made by biologists at the University of California-Riverside, and the Southeast and Orange County Mosquito Abatement districts (Courtenay et al. 1986).
Revision Date: 10/25/2004
Peer Review Date: 4/1/2016
U.S. Geological Survey, 2019, Oreochromis urolepis hornorum (Trewavas, 1966): U.S. Geological Survey, Nonindigenous Aquatic Species Database, Gainesville, FL, https://nas.er.usgs.gov/queries/FactSheet.aspx?speciesID=470, Revision Date: 10/25/2004, Peer Review Date: 4/1/2016, Access Date: 10/14/2019
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.