Updated status of the Vancouver Island Lake Lamprey, Lampetra macrostoma, in Canada

Abstract

The Vancouver Lamprey was originally described in 1982 from a restricted area on Vancouver Island. It is a derivative of Lampetra tridentata (Pacific Lamprey), but has a larger disc and is able to survive and feed in freshwater. It feeds heavily on freshwater salmonids and juvenile anadromous Coho Salmon, Oncorhynchus kisutch, and would be a predator of other salmonids if it is introduced into other systems.