Invasion

Invasion Description

1st Record: Alexandria/VA/Little Hunting Creek (Virginia Department of Fish and Game 2004; Whoriskey 2004).

Geographic Extent

just downstream of Octoraro Lake dam, Chester County/PA/Octoraro Creek (7/3/2018, USGS Nonindigenous Aquatic Species Program 2018); Cecil County/MD/Susquehanna River (3/10/2016, (7/30/2015, USGS Nonindigenous Aquatic Species Program) 2016 just S of Havre de Grace]/MD/Susquehanna River (7/30/2015, USGS Nonindigenous Aquatic Species Program 2015); Anchor Marina, Northeast/MD/Northeast River (4/17/2011, http://dnr.maryland.gov/fisheries/fishingreport/); Glen Burnie/MD/Furnace Creek, Patapsco River (5/4/2013, http://www.dnr.state.md.us/fisheries/fishingreport/single.asp?ID=2972; USGS Nonindigenous Species Program 2013); Fox Point (Smithsonian Environmental Research Center, Edgewater/MD/Rhode River (7/14/2011, Ruiz et al,, Hines et al., unpublished data); Chesapeake Beach/MD/Fishing Creek (9/11/2011, USGS Nonindigenous Species Program 2013); Price Frederick/MD/Horse Swamp, Parker Creek (7/30/2017, Rob Aguilar, pers. comm.); Alexandria/VA/Little Hunting Creek (Virginia Department of Fish and Game 2004; Whoriskey 2004); Marshall Hall/MD/Potomac River; Mason Neck National Wildlife Refuge/VA/Potomac River; Fairfax County/MD/Dogue Creek Fahrenthold 2004; Wheaton/MD/Potomac (Anacostia) watershed pond (1 fish, Fahrenthold 2004; Crofton/MD/unnamed pond, Patuxent watershed (eradicated 2002); a pond at Kenilworth Park and Aquatic Gardens in NE District of Columbia/adjacent to Anacostia River (Center for Aquatic Resource Studies 2005: Four females, 3 males, 1 undetermined sex. Pond was drained and left to dry for six days. None were found in adjacent ponds.); Anacostia, NE Washington River, (upriver of the Benning Road Bridge)/Anacostia River (2007, Center for Aquatic Resource Studies 2007); Fairfax County/VA/Gunston Cove, Dogue Creek Bay and Little Hunting Creek (2006, Lapointe et al. 2010); below Rt. 301 and above Colonial Beach)/VA/upper Machodoc Creek (2/25/2009. Center for Aquatic Resource Studies 2009, n, 7.9 PSU); about 56 km (35 miles), at mouth off Kitts Point/MD/St. Marys River (5/2010, USGS Nonindigenous Aquatic Species Program 2011); above Chain Bridge/DC-MD/Potomac River (2010, Starnes et al. 2011); White's Ferry, above the head of tide/MD/Potomac River on the Potomac (Sharbell 2011, 1 specimen )

Scotland/MD/Chesapeake Bay, between the mouth of St. Jerome Creek and the mouth of the Potomac River (8/25/2010, USGS Nonindigenous Aquatic Species Program 2011); Buzz's Marina/MD/St. Jerome's Creek (5/3/2011, Tidalfish.com, http://www.tidalfish.com/forums/showthread.php/302886-Snakehead-caught-today-right-at-Buzz-s-Marina-docks); Chesapeake Ranch Estates/MD/Middle Creek, at base of Lake Lariat (tributary of Patuxent River Mouth (7/10/2011, USGS Nonindigenous Aquatic Species Program 2011); Merkle Widlife Management Area/Patuxent River (2012, Chris Swarth, personal communication 2012); Mt Calvert/MD/Patuxent River (2012, Chris Swarth, personal communication 2012); Hill's Bridge/MD/Patuxent River 2012, Chris Swarth, personal communication 2012); Wetapquin/MD/Tyaskin Creek (6/8/2011, Maryland Department of Natural Resources 2011, http://dnr.maryland.gov/fisheries/fishingreport/); Rte 404 Bridge/DE/Marshyhope Creek, Nanticoke River Tributary; (7/2011, WBOC News 7/22/2011, http://www.wboc.com/story/15131544/2-invasive-snakeheads-recently-caught-in-del-waterways); near Laurel/DE/Broad Creek, Nanticoke river drainage (Fall/2010, WBOC News 7/22/2011); MD 335 Bridge/MD/Blackwater River (3/16/2012, USGS Nonindigenous Aquatic Species Program 2011); Middleford Branch [in Middleford]/DE/Nanticoke River (8/9/2011, USGS Nonindigenous Aquatic Species Program 2012); near Salisbury/MD/Wicomico River (5/23/2012, frozen at USFWS, Annapolis, MD, USGS Nonindigenous Aquatic Species Program 2012); Beaverdam Creek in a city park in Salisbury/MD/Wicomico River tributary (6/22/2012, USGS Nonindigenous Aquatic Species Program 2012, male guarding nest); Rt. 363 crossing [W of Princess Anne], Somerset County/MD/Monie Creek (6/20/2012, USGS Nonindigenous Aquatic Species Program 2012); Pocomoke City/MD/Pocomoke River (7/2019, , USGS Nonindigenous Aquatic Species Program 2019). (off Routes 2/17, a few mi SE of Fredericksburg/VA/Massaponax Creek at Ruffins Pond (7/2019, USGS Nonindigenous Aquatic Species Program 2012, 1 fish caught, 2 more seen); Waysons Corner/MD/Patuxent River (7/18/2012, Maryland Anglers' Blog http://dnr.maryland.gov/fisheries/fishingreport/log.asp?p=2&q=snakehead&amnt=10); Crabbe Mill Stream, Northumberland County/VA/Crabbe Mill Stream, Pinakatank River (7/19/2012, USGS Nonindigenous Aquatic Species 2012); near Iraville/VA/Elmwood Creek, near jct with Baylors Creek, Rappahannock River (9/29/2012, USGS Nonindigenous Aquatic Species Program 2012, 1fish); Drake’s Marsh near Leedstown/VA/Rappahnnock River (2012, Dennen 2013); Hicks Landing, Caroline County/VA/Rappahannock River (2012, Dennen 2013)