Journal ArticleDOI
Adult Biology of the River Lamprey (Lampetra ayresi) and the Pacific Lamprey (Lampetra tridentate) from the Pacific Coast of Canada
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Pacific lamprey (Lampetra tridentata) begin metamorphosis in July and the known period of entry into salt water is from December until June and feeding can commence in freshwater or salt water by mid-October.Abstract:
River lamprey (Lampetra ayresi) metamorphose in late July with downstream migration occurring in the following year from May to July. Once adults enter salt water they begin to feed immediately by ...read more
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The Ecological and Cultural Importance of a Species at Risk of Extinction, Pacific Lamprey
TL;DR: Interestingly, this review suggests that the Pacific lamprey plays an important role in the food web, may have acted as a buffer for salmon from predators, and may have been an important source of marine nutrients to oligotrophic watersheds.
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Population genomics of Pacific lamprey: adaptive variation in a highly dispersive species.
TL;DR: This study provides both neutral and adaptive context for observed genetic divergence among collections and thus reconciles previous findings of population genetic heterogeneity within a species that displays extensive gene flow.
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Passage efficiency of adult Pacific lampreys at hydropower dams on the lower Columbia River, USA
TL;DR: In this article, the authors documented the movements of radio-tagged adult Pacific lampreys in specific areas of fishways (entrances, collection channels, transition areas, ladders, and counting stations) at the first three dams they encounter as they move upstream (Bonneville, The Dalles, and John Day).
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The paradox of “premature migration” by adult anadromous salmonid fishes: patterns and hypotheses
TL;DR: This work first review migration in salmonids and finds great variation in timing patterns among and within species, relative to the timing of reproduction, and proposes two hypotheses to explain it.
Journal ArticleDOI
A proposal for the functional and phylogenetic significance of differences in the dentition of lampreys (Agnatha: Petromyzontiformes)
Ian C. Potter,R. W. Hilliard +1 more
TL;DR: It is concluded that blood-feeding preceded flesh-feeding in ‘modern’ lampreys; endemic freshwater parasitic species typically ingest blood; the ability to feed on flesh developed in populations which had access to estuarine and marine hosts; and pre-Tertiary forms resembling contemporary lehthyomyzon unicuspsis could have given rise independently to both of the divergent and specialized genera of Southern Hemisphere lampreys.