Invasion

Invasion Description

1st Record: Albany/NY/Hudson River (Marshall 1895, cited by Strayer 1987).

1st Watershed Record: Herkimer County/NY/Mohawk River (1867, Jokinen 1992, 200 specimens from Illinois released by collector). Not found in a 2008 survey of the upper tidal river (Coote and Strayer 2008)

Geographic Extent

Herkimer County/NY/Mohawk River (1867, Jokinen 1992, 200 specimens from Illinois released by collector); Albany/NY/Hudson River (Marshall 1895, cited by Strayer 1987); Dutchess County/NY/Hudson River (1926, Strayer 1987); Annandale/NY/Sawkill River (1922, Strayer 1987); New York City/NY/park pond (Clench 1962)