Conservation biology of the Lampetra satellite species of western North America, with a focus on western brook lamprey (L. richardsoni) / by Benjamin J. Clemens and Joy Wade. : Fs97-4/3258E-PDF

"Satellite species are composed of one parasitic lamprey that gives rise to nonparasitic lamprey species. The Lampetra satellite species of western North America are composed of three species: the anadromous Western River Lamprey (WRL) L. ayresii and two species of freshwater-resident, non-parasitic brook lampreys, the Western Brook Lamprey (WBL) L. richardsoni and Pacific Brook Lamprey (PBL) L. pacifica. The biology of these species has many information gaps, which makes assessing conservation status and identifying conservation actions challenging. We have synthesized the information from the literature to provide an understanding of the biology, threats, monitoring needs, and conservation of the Lampetra species of western North America, focusing on WBL. The three lampreys in the Lampetra satellite species, being small, exhibit relatively weak swimming abilities and undertake short movements within a water body. As such, they may be impacted by passage barriers. Whereas anadromous lampreys are predicted to migrate poleward in a changing climate, WBL and PBL will not be able to readily change their distributions, and so will likely be significantly impacted by climate change, making passage increasingly important for their conservation. Distribution monitoring and studies focused on understanding their spawning migrations and passage requirements will be essential to inform conservation"--Abstract, page v.

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