Sea Lamprey (Petromyzon marinus) Populations in Northeastern North America: Genetic Differentiation and Affinities


July 6, 2015 - Author: , Janet Wright, Peter F. Brussard, Marjorie Collings Hall

Journal or Book Title: Canadian Journal of Fisheries and Aquatic Sciences

Volume/Issue: 42:4

Page Number(s): 776-784

Year Published: 1985

We examined genetic population structure in 3253 sea lampreys (Petromyzon marinus) sampled at 53 sites
in northeastern North America and the British Isles. Hierarchical F-statistics of allozyme frequencies
indicated that genetic divergence from lake to lake and river to river was greater than divergence among
sites within lakes or rivers and also greater than that attributable to the separation of landlocked freshwater
from coastal anadromous systems. Lampreys from different lakes varied considerably in the amount of
spatial differentiation evident. New York freshwater populations of uncertain invasion history were no
more genetically differentiated than were recently introduced upper Great Lakes populations. The
apparent reproductive isolation of lampreys in Lake Erie from Lake Ontario populations, despite canal
connections, suggests that movement is limited between lakes. Future studies should determine the cause
so that management techniques to restrict movement can be developed to control populations.

DOI: 10.1139/f85-099

Type of Publication: Journal Article



Accessibility Questions:

For questions about accessibility and/or if you need additional accommodations for a specific document, please send an email to ANR Communications & Marketing at