Invasion

Invasion Description

1st Record: Glenmont/NY/Hudson River (River Miles 134-141) (Simpson 1984, cited by Strayer 1987, Mills et al. 1997), 1st Record: PA-NJ/Delaware River (Herrington 1962, no details)

Geographic Extent

Glenmont/NY/Hudson River (River Miles 134-141) (Simpson 1984, cited by Strayer 1987, Mills et al. 1997). Its abundance in benthic samples is very low (Strayer and Smith 2001, Simpson 1984, cited by Strayer 1987, Mills et al. 1997). Its abundance in benthic samples is very low (Strayer and Smith 2001)., PA-NJ/Delaware River (Herrington 1962, no details)