Harvest Evaluation Project 2020

Salmonid Research, Monitoring, and Evaluation (RM&E)

Project IDEvaluation 2020
Recovery DomainsInterior Columbia
Start Date09/01/2020
End Date08/31/2021
Last Edited12/06/2021
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The Tribes completed management of the 2021 Chinook salmon fishery prior to initiating the fishing season. The fishery officially began on 4 May 2021 with the Tribal Fish and Game Commission adopting the final approved harvest guidelines and regulations. SBT TRMPs (for the Salmon, Grande Ronde, and Imnaha rivers) identify fishery management areas (FMAs) that return natural-origin Chinook salmon populations targeted for Shoshone-Bannock harvest. Each FMA was managed by an abundance-based sliding scale harvest management framework that takes into account annual population viability. The framework protects all populations from over-harvest and especially those that are functioning below the critical population threshold, as defined by the ICTRT 2007. Conversely, the framework allows flexibility to increase harvest opportunities on populations that are performing above the viable population threshold. Tribal staff attended multiple US v. Oregon Technical Advisory Committee (TAC) meetings in fall 2020 and spring 2021 by conference call. As the run progressed from the Columbia River Mouth upstream to Bonneville and Lower Granite Dams, the Tribes were involved in discussions with TAC and Snake Basin Coordinators on run size updates, lower river fishery impacts, PIT tag detections, as well as generating forecasts for Lower Granite Dam, and individual FMAs. The TAC pre-season forecast for the Columbia River mouth equaled 75,200 age-4, age-5, and age-6 adults with a predicted 11,100 being of wild origin. The pre-season Snake River hatchery forecast predicted 18,783 adults returning to project areas (as measured at Lower Granite Dam). After the pre-season forecast was finalized, Snake Basin Coordinators (IDFG, ODFW, SBT, and NPT) developed return estimates for natural adults to the entire basin (8,150 to Salmon, Clearwater, and Oregon) and individually by population (FMA). The FMA forecasts were used to generate the harvest regulations and guidelines for the Shoshone Bannock Tribes.

Project Benefit    

The Tribes will report their harvest estimates to NOAA-Fisheries and relevant co-managers on a weekly basis through the Snake Basin Adult Coordination Meetings. Once fishery guidelines or total impacts are achieved for an individual fishery, such fishery will be curtailed unless information suggests forecasts under-predicted escapement or an adjusted in-season forecast is made by TAC. Conversely, should information suggest pre-season forecasts over-estimate escapement, harvest guidelines will be reduced.


Metric Completed Originally
Research and Monitoring
  Stream Miles Monitored 10,050.00 10,050.00

Funding Details

Report Total:$94,788

Project Map



  • Worksite Identifier: 40969429
  • Start Date:
  • End Date:
Area Description
Fishery Evaluations in Salmon River and Grande Ronde/Imnaha Rivers Basins

Location Information

  • Basin: Salmon
  • Subbasin:
  • Watershed:
  • Subwatershed:
  • State: Idaho
  • Recovery Domain: Interior Columbia
  • Latitude: 44.2178831085
  • Longitude: -114.9462890625


  • Snake River Spring/Summer-run Chinook Salmon ESU




  • E.0 Salmonid Research, Monitoring, and Evaluation (RM&E)Y (Y/N)
    •      . . E.0.a RM&E Funding 94,788.00
    •      . . E.0.b
      Complement habitat restoration project
    •      . . E.0.c
      Project identified in a plan or watershed assessment.
      Shoshone Bannock Tribes Salmon River and Grande Ronde/Imnaha River Basins Tribal Resources Management Plans
    •      . . E.0.d.1 Number of Cooperating Organizations 1
    •      . . E.0.d.2
      Name Of Cooperating Organizations.
      Shoshone Bannock Tribes Fish and Game Enforcement
    •      . . E.0.e.1 Number of reports prepared 4
    •      . . E.0.e.2
      Name Of Report
      SBT Grant Report April 2021 (excel spreadsheet) SBT Grant Report September 2021 (excel spreadsheet) SBT Grant Report - Final FY20 (excel spreadsheet) Croy, R. and K.A. Tardy. 2021. Chinook Salmon Harvest Management Program. 2021 Annual Report. Shoshone-Bannock Tribes, Fort Hall, Idaho.
    •      . . E.1 MonitoringY (Y/N)
      •      . . . . E.1.a Monitoring funding 94,788.00
      •      . . . . E.1.b.1 Stream Miles Monitored 10,050.00
      •      . . . . E.1.b.2 Acres of Watershed Area Monitored 64,000.0
      •      . . . . E.1.b.3 Square miles of water monitored100 (Square miles)
      •      . . . . E.1.c.4 Redd countsY (Y/N)
        •      . . . . . . E.1.c.4.a # miles (to nearest 0.01 mile) monitored for redds 25.00
      •      . . . . E.1.c.5 Carcass countsY (Y/N)
        •      . . . . . . E.1.c.5.a # miles (to nearest 0.01 mile) monitored for Carcasses 25.00
      •      . . . . E.1.c.6 Harvest monitoringY (Y/N)
        •      . . . . . . E.1.c.6.a # miles (to nearest 0.01 mile) monitored for harvest 10,000.00
        •      . . . . . . E.1.c.6.b # square miles (to nearest 0.01 mile) monitored for harvest100 (Square miles)
        •      . . . . E.1.d
          Name Of Comprehensive Monitoring Strategy/Program
          Shoshone Bannock Tribes Salmon River and Grande Ronde/Imnaha River Basins Tribal Resources Management Plans