NAS - Nonindigenous Aquatic Species

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Specimen ID	State	County	Locality	Year	HUC Number	Drainage name	Status
886101	MD		Mattawoman Creek	2015	02070011	Lower Potomac	established
1467284	MD	Anne Arundel	Bear Neck Creek	2018	02060004	Severn	established
547224	MD	Anne Arundel	Furnace Creek	2013	02060003	Gunpowder-Patapsco	established
625252	MD	Anne Arundel	Furnace Creek	2014	02060003	Gunpowder-Patapsco	established
1421551	MD	Anne Arundel	Lake adjacent/attached to Patapsco River	2017	02060003	Gunpowder-Patapsco	established
1409482	MD	Anne Arundel	Lake Waterford Dam spillway	2017	02060004	Severn	established
1418497	MD	Anne Arundel	Little Patuxent River	2017	02060006	Patuxent	established
1533118	MD	Anne Arundel	Little Patuxent River Oxbow Lake Nature Preserve	2019	02060006	Patuxent	established
850587	MD	Anne Arundel	Little Patuxent River, in Laurel, near wastewater treatment plant	2015	02060006	Patuxent	unknown
850585	MD	Anne Arundel	Little Patuxent River, Odenton, near the Washington, Baltimore & Annapolis Trail	2015	02060006	Patuxent	unknown
1546523	MD	Anne Arundel	park pond adjacent to Patapsco River	2019	02060003	Gunpowder-Patapsco	established
630948	MD	Anne Arundel	Patapsco River	2014	02060003	Gunpowder-Patapsco	unknown
1404928	MD	Anne Arundel	Patapsco River, 780 meters downstream from SR 648 bridge, Baltimore area	2017	02060003	Gunpowder-Patapsco	established
1467129	MD	Anne Arundel	Patapsco River, flood ponds at Belle Grove	2018	02060003	Gunpowder-Patapsco	established
1418498	MD	Anne Arundel	Patapsco River, pond located within tributary	2017	02060003	Gunpowder-Patapsco	established
290666	MD	Anne Arundel	Patuxent River	2012	02060006	Patuxent	unknown
277047	MD	Anne Arundel	Rhode River (at Fox Point on Muddy Creek)	2011	02060004	Severn	established
1456432	MD	Anne Arundel	Severn River	2018	02060004	Severn	established
1257145	MD	Anne Arundel	South River	2016	02060004	Severn	unknown
156787	MD	Anne Arundel	Walking Fish Pond [= MacQuillium Pond] in Crofton behind shopping center, adjacent to Route 3 near the intersection of Crawford Blvd.	2002	02060006	Patuxent	eradicated
156785	MD	Anne Arundel	Walking Fish Pond [= MacQuillium Pond] in Crofton behind shopping center, adjacent to Route 3 near the intersection of Crawford Blvd.	2002	02060006	Patuxent	eradicated
156786	MD	Anne Arundel	Walking Fish Pond [= MacQuillium Pond] in Crofton behind shopping center, adjacent to Route 3 near the intersection of Crawford Blvd.	2002	02060006	Patuxent	eradicated
156788	MD	Anne Arundel	Walking Fish Pond [= MacQuillium Pond] in Crofton behind shopping center, adjacent to Route 3 near the intersection of Crawford Blvd.	2002	02060006	Patuxent	eradicated
156789	MD	Anne Arundel	Walking Fish Pond [= MacQuillium Pond] in Crofton behind shopping center, adjacent to Route 3 near the intersection of Crawford Blvd.	2002	02060006	Patuxent	eradicated
156791	MD	Anne Arundel	Walking Fish Pond [= MacQuillium Pond] in Crofton behind shopping center, adjacent to Route 3 near the intersection of Crawford Blvd.	2002	02060006	Patuxent	eradicated
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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.

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