A1258150627BxRHO

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Fluvial Bull Trout Migration and Life History
Investigations, Upper Salmon River SubbasinNew
Project Proposal, No. 28002
Sponsored by Shoshone-Bannock Tribes Presented
by Jeff Anderson, Fisheries Biologist
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Upper Salmon River Interagency Technical Advisory
Team(USRITAT)
Upper Salmon River Key Watershed Bull Trout
Problem Assessment, 1998
Prepared by
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Key USRITAT Findings

• Fluvial bull trout are thought to exist in 17
  sub-watersheds/streams

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Key USRITAT Findings

• Fluvial bull trout are thought to exist in 17
  sub-watersheds/streams
• Fluvial bull trout are known to exist in only 5
  of the 17 sub-watersheds/streams

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Key USRITAT Findings

• Fluvial bull trout thought to exist in 17
  sub-watersheds/streams
• Fluvial bull trout known to exist in only 5 of
  the 17 sub-watersheds/streams
• Identified 50 sub-watersheds/streams where bull
  trout presence is unknown or little information
  exists concerning densities or population trends

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Distribution, Status, and Likely Future Trends of
Bull Trout within the Columbia River and Klamath
River Basins, NAJFM 1997
Authors
B. E. Rieman, D. C. Lee, R. F. ThurowUSFS Rocky
Mountain Research Station
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Rieman et al. 1997, central Idaho mountains

• In sub-watersheds where bull trout are present,
  their status is unknown in 167 of 567
  sub-watersheds ( 30)

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Rieman et al. 1997, central Idaho mountains

• In sub-watersheds where bull trout are present,
  their status is unknown in 167 of 567
  sub-watersheds ( 30)
• In potential historical bull trout
  sub-watersheds, their status is either unknown or
  no classification for presence/absence in 220 of
  1147 sub-watersheds ( 20)

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Overall Project Goal

• Provide resource managers in the upper Salmon
  River subbasin with detailed bull trout
  population status and life history information

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Objectives

• Identify the distribution and status of fluvial
  bull trout populations

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Tasks
Objective 1 Identify the distribution and status
of fluvial bull trout populations

• Radio tag and track fluvial bull trout captured
  in the mainstem Salmon River, East Fork Salmon
  River, and Yankee Fork Salmon River

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Tasks
Objective 1 Identify the distribution and status
of fluvial bull trout populations

• Radio tag and track fluvial bull trout captured
  in the mainstem Salmon River, East Fork Salmon
  River, and Yankee Fork Salmon River
• Sample (snorkel or electrofishing surveys) in
  tributary streams where fluvial bull trout are
  found to exist

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Objectives

• Identify the distribution and status of fluvial
  bull trout populations
• Identify seasonal habitat use and migration
  patterns of fluvial bull trout

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Tasks
Objective 2 Identify seasonal habitat use and
migration patterns of fluvial bull trout

• Radio tag and track fluvial bull trout captured
  in Salmon River tributaries

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Initial sample effort

• Upper East Fork Salmon River
• Herd Creek
• Yankee Fork Salmon River
• Valley Creek
• Salmon River headwaters

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Objectives

• Identify the distribution and status of fluvial
  bull trout populations
• Identify seasonal habitat use and migration
  patterns of fluvial bull trout
• Determine bull trout presence/absence, densities,
  population status, and spawning times

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Tasks
Objective 3 Determine bull trout
presence/absence, densities, population status,
and spawning times

• Sample streams using snorkel and electrofishing
  surveys
• Conduct bull trout spawning ground surveys

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Products

• Detailed population status map by sub-watershed
• Detailed map showing presence/absence of fluvial
  bull trout by stream
• Detailed map showing key migration corridors and
  mainstem habitat use areas
• Key spawning areas identified
• Trend count areas established
• Spawning times in relation to water temperature
  documented by sub-watershed

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