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EVALUATE STATUS OF PACIFIC LAMPREY IN THE CLEARWATER RIVER AND SALMON RIVER DRAINAGES, IDAHO

Annual Report 2006

Citation

Hyatt, Matthew W., Claire, Christopher, Cochnauer, Tim. 2006. EVALUATE STATUS OF PACIFIC LAMPREY IN THE CLEARWATER RIVER AND SALMON RIVER DRAINAGES, IDAHO Annual Report 2006. Idaho Department of Fish and Game. Prepared for: U.S. Department of Energy Bonneville Power Administration.

Summary

Pacific lamprey Lampetra tridentata is a native Snake River subbasin anadromous fish species occupying a unique ecological niche. Recent decline of Pacific lamprey adult migrants to the Snake River subbasin has contributed to focused attention on the species. Pacific lamprey adults counted passing Ice Harbor Dam fishway (first hydroelectric facility on Snake River) averaged 18,000 during 1962-1969 and about 600 during 1993-2006. Human manipulations of natural resource in the Snake, Clearwater, and Salmon river drainages have altered habitat characteristics of ecosystems in these basins in the last 120 years, impacting the productive potential of Pacific lamprey habitat. Timber harvest, stream impoundment, road construction, grazing, [...]

Attached Files

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hyatt et al 2006 Clearwater lamprey report for 2006.pdf
“hyatt et al 2006 Clearwater lamprey report for 2006”
919.14 KB application/pdf

Communities

  • Pacific Lamprey Data Clearinghouse
  • Pacific Region, Region 1
  • US Fish and Wildlife Service (USFWS)

Provenance

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