NAS - Nonindigenous Aquatic Species

Specimen ID	State	County	Locality	Year	HUC Number	Drainage name	Status
1420939	MD	Anne Arundel	Patapsco Valley State Park	2004	02060003	Gunpowder-Patapsco	established
1420938	MD	Anne Arundel	Patapsco Valley State Park	2017	02060003	Gunpowder-Patapsco	established
1420940	MD	Harford	Lower Big Gunpowder River, near Joppatown, MD	2007	02060003	Gunpowder-Patapsco	established

Data Disclaimer: Number of records does not imply species abundance. This summary represent collection records only and may not reflect the actual distribution of established populations. These data are preliminary or provisional and are subject to revision. They are being provided to meet the need for timely best science. The data have not received final approval by the U.S. Geological Survey (USGS) and are 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 data.

Data are not available for download from the web site. Please contact NAS staff for a custom query.