Invasion

Invasion Description

1st Record:NY/Hudson River estuary (1976, Bath et al. 1976, cited by Mills et al. 1997)

1st Watershed Record: NY/New Croton Reservoir (Hudson River drainage) 1936, (Smith and Lake 1936; Mills et al. 1997)

Geographic Extent

NY/New Croton Reservoir (Hudson River drainage); NY/Hudson River estuary (1976, Bath et al. 1976, cited by Mills et al. 1997; Daniels et al. 2005; Waldman et al. 2006); Staten Island/NY/New York Habor (Kilry 1975, cited by Briggs and Waldman 2002)