Draft Imnaha Subbasin Summary November 30, 2001 Prepared for the Northwest Power Planning Council Subbasin Team Leader


Imnaha Subbasin Research, Monitoring, and Evaluation Activities



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Imnaha Subbasin Research, Monitoring, and Evaluation Activities

A comprehensive research, monitoring and evaluation program through the Lower Snake River Compensation Program has been underway in the Imnaha subbasin since 1984 (USFWS 2001).

Project Descriptions

Comparative Survival Rate Study of Hatchery PIT-Tagged Chinook Salmon (PSMFC, FPC, ODFW: BPA Project No. 8712702) - PIT-Tag Marking Spring and Summer Chinook Salmon at Lookingglass Hatchery

The Comparative Survival Study is a long term PIT tag study to develop smolt-to-adult survival indices for spring and summer stream type chinook originating above Lower Granite Dam to evaluate smolt migration mitigation measures and actions (such as flow augmentation, spill, and transportation) for the recovery of listed salmon stocks.

Lower Snake River Compensation Plan Steelhead and Chinook Salmon Evaluations (ODFW)

This research project meets the needs for evaluation of steelhead and chinook salmon hatchery production in the Imnaha River subbasin. The LSRCP was designed to establish and maintain artificial production programs for steelhead and chinook salmon to mitigate for fish losses associated with construction and operation of Lower Snake River Dams. A long-term evaluation and monitoring process is envisioned for the duration of operation of the hatcheries to develop and maintain fish runs, which meet recovery and compensation goals at minimum costs. ODFW is conducting an ongoing comprehensive evaluation of LSRCP activities in Oregon that address the following general guidelines:

1. Develop and evaluate operational procedures that will meet recovery and compensation goals as well as management objectives by priority.

2. Monitor operational practices to document hatchery production capabilities and challenges.

3. Monitor fish-rearing activities and results to document accomplishment of goals.

4. Coordinate research and management programs with hatchery capabilities.

5. Recommend hatchery production strategies that are consistent with endangered species recovery efforts.


  1. Develop knowledge and information to guide recovery actions and to monitor recovery in Imnaha river basin.

  2. Investigate characteristics of endemic stocks that may be influenced by hatchery production.

The RM&E program is designed to:



  1. Estimate annual adult returns and smolt-to-adult survival

  2. Evaluate the influence of various release strategies on survival and life history

  3. Evaluate natural and hatchery chinook smolt performance and survival within the subbasin and through the Snake River

  4. Compare life history and genetic characteristics of natural and hatchery fish

  5. Determine and compare progeny-to-parent ratios of natural and hatchery fish

  6. Determine success of restoring recreational fisheries

Other research, monitoring, and evaluation activities within the Imnaha subbasin that are used to complement fish and wildlife projects are provided in Table 40.


Table 40. BPA-funded Columbia River Basin Fish and Wildlife Program research, monitoring, and evaluation activities within the Imnaha River subbasin (Bonneville Power Administration and Northwest Power Planning Council 1999)

Activity

Watershed Location

Agency

BPA #

Dates

Compilation of existing and potential sites for anadromous fish hatcheries


Basin-wide

USSBA

8405100

1984-1986

Standardization of fish health monitoring

Basin-wide

ODFW

8711800

1987-1991

Smolt monitoring

Imnaha River

PSMFC

8712700

1987-1998

Habitat study

Imnaha River

NPT

8801500

1987-1993

Hatchery site feasibility and conceptual design

Imnaha River

Montgomery Watson

8805300

1991-1997

Outplanting facilities plan

Imnaha River

NPT

8805301

1989-1999

Evaluation of re-establishment actions


Basin-wide

ODFW

8805304

1989-1999

NE OR artificial production study

Basin-wide

ODFW

8805305

1997-1999

Genetic evaluations of hatchery and natural fish populations

Camp Creek

NMFS

8909600

1989-1999

Genetic evaluations of hatchery and natural fish populations

Imnaha Pond Hatchery

NMFS

8909600

1989-1999

Genetic evaluations of hatchery and natural fish populations

Grouse Creek

NMFS

8909600

1989-1999

Genetic evaluations of hatchery and natural fish populations

Little Sheep Creek


NMFS

8909600

1989-1999

Genetic evaluations of hatchery and natural fish populations

Imnaha River

NMFS

8909600

1989-1999

Genetic evaluations of hatchery and natural fish populations

Lick Creek

NMFS

8909600

1989-1999

Evaluate supplementing summer steelhead

Little Sheep Creek

ODFW

8909700

1989, 1991-1993

Evaluate supplementing summer steelhead

Imnaha River

ODFW

8909700

1989, 1991-1993

Evaluate supplementing summer steelhead

Deer Creek

ODFW

8909700

1989, 1991-1993


Pit tagging wild chinook

Imnaha River

NMFS

9102800

1991-1999

Fish passage evaluation

Imnaha River

USACE

9204100

1992-1995

Fish passage evaluation

Imnaha River

USACE

9204101

1996

Genetics, population, and passage of natural fall chinook

Imnaha River

WDFW

9204600

1992-1996

Telemetry tracking

Basin-wide

USFS

9307000

1993-1996

Bull trout life history

Indian Creek

ODFW, OS Systems

9405400


1994-1997

Bull trout life history

Imnaha River

ODFW, OS Systems

9405400

1994-1997

Bull trout life history

McCully Creek

ODFW, OS Systems

9405400

1994-1997

Bull trout life history

Big Sheep Creek

ODFW, OS Systems

9405400

1994-1997

Audit Columbia basin anadromous hatcheries

Little Sheep Creek Pond

Montgomery Watson

9500200

1995

Audit Columbia basin anadromous hatcheries

Imnaha Pond Hatchery

Montgomery Watson

9500200

1995

Pit tagging hatchery chinook

Imnaha Pond Hatchery

ODFW

9602001

1996



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