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Pacific lamprey research and restoration : 1997 annual report

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dc.contributor Department of Energy en
dc.creator Jackson, Aaron D.
dc.creator Hatch, Douglas R.
dc.creator Close, David A.
dc.creator Li, Hiram W.
dc.creator Confederated Tribes of the Umatilla Indian Reservation in Oregon., Columbia River Inter-Tribal Fish Commission.
dc.creator Oregon Cooperative Fishery Research Unit
dc.date.accessioned 2007-04-25T19:52:54Z
dc.date.available 2007-04-25T19:52:54Z
dc.date.issued 1997-01
dc.identifier.citation Jackson,Aaron D., Tribal Fisheries Program, Department of Natural Resources, Confederated Tribes of the Umatilla Indian Reservation, Douglas R. Hatch, Blaine L. Parker, Columbia River Inter-Tribal Fish Commission, David A. Close, Martin S. Fitzpatrick, Hiram Li, Oregon Cooperative Fishery Research Unit, Department of Fisheries and Wildlife, Oregon State University, U. S. Department of Energy, Bonneville Power Administration, Division of Fish and Wildlife, Project Number 1994-026, Contract Number 95BI39067, 97 electronic pages (BPA Report DOE/BP-39067-3) en
dc.identifier.uri http://hdl.handle.net/1957/4645
dc.description.abstract Based on oral interviews with tribal informants, current and former state and federal fisheries personnel, review of records and literature, and presence/absence sampling, it is apparent that Pacific lamprey were once abundant in ceded area streams of the Umatilla Indian Reservation (John Day, Umatilla, Walla Walla, Tucannon, and Grande Ronde subbasins). Current population levels appear severely depressed in all subbasins except possibly the John Day, which could be classified as depressed. The most probable reasons for population declines include: dams, chemical treatment activities, declining habitat quality (e.g. high water temperatures, poor water quality, low instream flows), and angle-iron in fishways to prevent lamprey passage. en
dc.format.extent 856115 bytes
dc.format.mimetype application/pdf
dc.language.iso en_US en
dc.publisher Portland, Or. : Bonneville Power Administration en
dc.relation Explorer Site -- Oregon Explorer en
dc.subject Thematic Classification -- Land and People en
dc.subject Thematic Classification -- Plants and Animals -- Fish -- Anadromous Fish -- Lamprey en
dc.subject.lcsh Lampreys -- Columbia River en
dc.subject.lcsh Lampreys -- Snake River (Wyo.-Wash.) en
dc.subject.other Lampreys en
dc.subject.other Bonneville Dam en
dc.subject.other Tribes en
dc.subject.other Indian Reservations en
dc.subject.other Physiology en
dc.title Pacific lamprey research and restoration : 1997 annual report en
dc.title.alternative Annual report 1997 : Lamprey research and restoration en
dc.type Technical Report en
dc.description.peerreview no en
dc.coverage.spatialecoregion Spatial: Ecoregions -- Blue Mountains en
dc.coverage.spatialoregonplanbasins Spatial: Oregon Plan Basins -- Umatilla en
dc.coverage.spatialoregonplanbasins Spatial: Oregon Plan Basins -- John Day en
dc.coverage.spatialoregonplanbasins Spatial: Oregon Plan Basins -- Grande Ronde en
dc.coverage.spatialstates Spatial: States -- Oregon en
dc.relation.reportsandpublications Reports and Publications -- Other Reports and Publications en
dc.coverage.spatialhydrologiclowersnake Spatial: Hydrologic Units -- Pacific Northwest (17) -- Lower Snake (1706) -- Lower Snake (170601) en
dc.coverage.spatialhydrologicmiddlecolumbia Spatial: Hydrologic Units -- Pacific Northwest (17) -- Middle Columbia (1707) -- Middle Columbia (170701) en
dc.coverage.spatialestuaries Spatial: Estuaries -- Columbia River en


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