Oregon Field Guide

Crayfish Invasion

Invasive crayfish from the east have been spotted for the 1st time west of the Rockies, in a river in Eastern Oregon and a stream in Corvallis. They were shipped to elementary schools for biology classes and then released where they don’t belong by well meaning children or their teachers. The shipments of live classroom specimens violates state wildlife laws but state authorities have chosen not to aggressively enforce the ban.

First Broadcast: 2011
Producer: Vince Patton
Videographer/Editor: Michael Bendixen
Videographer: Tom Shrider
Video courtesy of: Freshwaters Illustrated

More Information
Crayfish Identification
Eastern Oregon Invasive Species
Invasive Species 101
Aquatic Invasive Species Toolkit


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Crayfish Invasion; Heritage Trees; Lichen; Working Dogs for Conservation

Oregon Field Guide:#2210
Original Broadcast: February 17, 2011