Invasion

Invasion Description

1st Record; Washington/DC/Potomac River (1900, Jenkins and Burkhead 1993)

Geographic Extent

Susquehanna River- Conowingo Dam/MD/Susquehanna River (1972, (McKeown 1984) Pesent in nontidal lower river (PA) by 1961 (Bielo 1962)

Upper Bay Tributaries- is in 1949, for Perryville, Cecil County/MDPrincipio Creek (1949, U.S. National Museum of Natural History 1996); Northeast, Cecil County//MD/ Northeast River (Elser 1958).

Mid-Bay tributaries- Edgewater/MD/Muddy Creek, Rhode River (1995-2013, Hines et al. unpublished, rare but regular). They were found in the watersheds of the Severn and Rhode Rivers (Kazyak et al. 1998).

Potomac River- Washington/DC/Potomac River (1900, Jenkins and Burkhead 1993); Chain Bridge, Washington/DC/Potomac River (Bean and Weed 1911. 'occurs in very large numbers'; 2010, Starmes et al. 2011); Washington/DC/ nontidal waters of Rock Creek and Anacostia River (Lippson et al. 1979), Fort Belvoir/VA/nontidal creeks at Fort Belvoir, near Gunston Cove (Ernst et al. 1995).

Rappahannock River - The first verified record in the drainage was in 1941 (Jenkins and Burkhead 1993); but it was not recorded in the estuary in a 1951 survey (Massman et al. 1952). In the 1980s, it was present in 1st order streams of the tidal region (Maurakis et al. 1987).

James River- Introductions of 390 adult 'Sun-fish' were made by United States Fish Commission in 1901 (Ravenel 1902). The first verified capture of L. cyanellus in the drainage was in 1947 (Jenkins and Burkhead 1993).