Invasion

Invasion Description

1st Record: Brownsville/TX/Rio Grande River (1973, Horen and Beisser 1977)

Geographic Extent

Brownsville/TX/Rio Grande River (1973, Horen and Beisser 1977); Cameron County/TX/Rio Grande River (15 Oct 1997, Bowles et al. 2000); Cameron County, El Jardin Pump Station/TX/Rio Grande River (21 Feb 1994, Bowles et al. 2000); just below Anzalduas Dam, Cameron County/TX/Rio Grande River (12 Jan 1993, Bowles et al. 2000, ~100 km from the Gulf)