Can we learn from other freshwater parasitic lampreys to help manage Cowichan Lake lamprey (Entosphenus macrostomus) / by Joy Wade.: Fs97-4/3184E-PDF

"Cowichan Lake Lamprey (Entosphenus macrostomus) is a freshwater parasitic lamprey species found in Cowichan and Mesachie lakes on Vancouver Island, British Columbia. It was first described in Beamish (1982) and has been studied intermittently since. In 2003, it was listed as Threatened on Schedule 1 of the Species at Risk Act. In the absence of scientific certainty, decisions regarding the management of the species and its habitat must be made. This is becoming increasingly important in recent years as climate change is increasing the stress on water supply in the watershed. This review was undertaken to determine if what we can learn from similar parasitic freshwater lamprey species which may be better studied. Research on the Chestnut, Silver, and Ohio lampreys in particular, each studied more extensively than Cowichan Lake Lamprey, can provide guidance to inform the management and science of this threatened species. It is argued that due to similarities in biology and life history between these species, they are more biologically relevant to use as proxy species than other lamprey, for example parasitic anadromous species"--Abstract, page v.

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