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Pacific Lamprey Research and Restoration: Annual Report 1997

Feb 11, 2020


The once abundant stocks of Pacific Lamprey (Lampetra tridentata) above Bonneville Dam are currently depressed. It is likely that many of the same factors that led to the decline of wild stocks of Columbia River Pacific salmon and steelhead have impacted Pacific Lamprey populations as well. The Pacific Lamprey is an important part of the food web of North Pacific ecosystems, both as predator and prey. Lamprey are a valuable subsistence food and cultural resource for Native American Indian Tribes of the Pacific Northwest. Depressed Pacific Lamprey runs have impacted treaty secured fishing opportunities by forcing tribal members to gather this traditional food in lower Columbia River locations.


Aaron Jackson, Douglas Hatch, Blaine Parker, David Close, Martin Fitzpatrick, and Hiram Li


Jackson, A.D., D.R. Hatch, B.L. Parker, D.A. Close, M.S. Fitzpatrick, and H. Li, 1998. Pacific lamprey research and restoration: annual report 1997. Bonneville Power Administration, Portland, OR. Project Number 1994-026. 97p.



Report No.


Media Type

Inter-Agency Report