Invasion

Invasion Description

1st Record: Ontario/Lake Ontario (1924, Duggan et al. 2003)

Geographic Extent

Ontario/Lake Ontario (1924, Duggan et al. 2003); Toronto/Ontario/Lake Ontario (1940); Toronto Island, Toronto/Ontario/Toronto Bay (ANSP 265373, Academy of Natural Sciences of Philadelphia 2012); Ontario/Rice Lake (Trent Severn Canal system) (1952, Herrington 1962; Mills et al. 1993); Ontario/Bay of Quinte/Lake Ontario (Herrington 1962); NY-VT/Lake Champlain (1929, ANSP 329504, Academy of Natural Sciences of Philadelphia 2012; Herrington 1962); Ontario/St. Lawrence River (Herrington 1962)