First documented occurrences
Photographed by Gordon King on mussel cages in Okeover Inlet, British Columbia, Canada, 2003. Identified by G. Lambert, 2004.
Photographed by Stan Kurowski on a rock wall in Pendrell Sound, British Columbia, Canada, August 10, 2004. Identified by G. Lambert, May, 2005.
Collected by Andy Lamb and Bernard Hanby on a rock wall in Agamemnon Channel, British Columbia, Canada, December, 2004. Identified by G. Lambert, January, 2004.
First anecdotal occurrence
Anecdotal reports from shellfish growers in British Columbia suggest Didemnum vexillum has been present for more than 10 years in the Tofino region, and has increased in the last few years. A grower in Deep Bay has observed the species for the last 4 years; and saw it for at least 14 years in Gorge Harbour on Cortes Island. Source: Department of Fisheries and Oceans, Canada; unpublished data, 2005.
Regional Location Map