Return to Proposal Finder FY 1999 Proposal 199404700

Proposal Table of Contents

Additional Documents

Section 1. General Administrative information
Section 2. Past accomplishments
Section 3. Relationships to other projects
Section 4. Objectives, tasks and schedules
Section 5. Budget
Section 6. References
Section 7. Abstract

Reviews and Recommendations
Title Type File Size File Date

Section 1. General Administrative Information

Title of Project Proposal Lake Pend Oreille Fishery Recovery Project
BPA Project Proposal Number 199404700
Business name of agency, institution,
or organization requesting funding
Idaho Department of Fish and Game
Business acronym (if appropriate) IDFG

Proposal contact person or principal investigator

Name Melo Maiolie
Mailing Address 2750 Kathleen Ave.
City, State, Zip Coeur d’Alene, ID 83814
Phone 2086833054
Fax 2086833054
Manager of program authorizing this project
Review Cycle FY 1999
Province Upper Columbia
Subbasin Pend Oreille
Short Description Enhances resident fish populations by changing the winter draw down of Lake Pend Oreille and the Pend Oreille River and researches other possible mechanisms for fish declines including predation and competition.
Target Species bull trout Kamloops rainbow trout kokanee warm water fish

Project Location

[No information]

Reasonable and Prudent Alternatives (RPAs)

Sponsor-Reported Relevant RPAs

Sponsor listed no RPAs for this project proposal

Relevant RPAs based upon NMFS & BPA Review

NMFS and BPA did not associate any reasonable and prudent alternatives with this project proposal

NPPC Program Measure Number(s) which this project addresses:
FWS/NMFS Biological Opinion Number(s) which this project addresses:
Other Planning Document References

CBFWA-Generated Information

Database Administrator notes on the history of this proposal form: None
Type of Project (assigned by CBFWA Analysts): resident

Section 2. Past Accomplishments

n/a or no information

Section 3. Relationships to Other Projects

n/a or no information

Section 4. Objectives, Tasks and Schedules

Objectives and Tasks

Objective Task
1. Recover kokanee abundance so that a harvest of 750,000 fish can be maintained on an annual basis. This would require an adult kokanee population of 3.7 million fish. a. U.S. Army Corps of Engineers raises the lake level 4 feet during the winter of 1996-7, 1997-8, 1998-9.
. b. Conduct mid-water trawling in the lake to determine population estimates, biomass, age, and size of kokanee.
. c. Conduct mobile hydroacoustic surveys to estimate age classes of kokanee and determine location of fry.
. d. Compare kokanee population to past data and relate to changes in lake level using multiple regression analysis.
. e. Conduct spawner counts of kokanee along shoreline and relate to past data.
. f. Calculate survival rates of kokanee and determine if lake level changes cause changes in survival.
. g. Map location and depth of kokanee spawning along 100+ miles of shoreline.
. h. Place kokanee eggs in Vibert type boxes and bury in the shoreline substrates of different qualities to determine changes in incubation with changed lake levels.
. I. Mark all kokanee fry that are stocked into the lake so that they can be identified as hatchery fish (cold-brand the otoliths).
. j. Mark all kokanee fry that are stocked into the lake so that they can be identified as hatchery fish (cold-brand the otoliths).
2. Have no net change in the amount of shoreline spawning gravel due to erosion or siltation during this experiment (maintain 1.7 million sq. ft.). a. Monitor the quality of shoreline gravel by scuba diving and analyzing the silt, sand, gravel, and cobble content.
. b. Measure the area of spawning gravel that is available to kokanee and compare to previous measurements.
3. Increase the warm water fish population in the Pend Oreille River seven fold. a. Change the winter elevation of the river 4 feet. (This task is being done by the U.S. Army Corps.)
. b. Monitor warm water fish populations in the Pend Orielle River by gillnetting, seining, and electrofishing and compare to data collected in 1991 and 1992.
. c. Determine year class strength and over winter mortality of fish produce with changed river levels
4. Determine whether other factors could be limiting the kokanee population by either competition or predation. a. Build a year-round energy budget model for the lake including zooplankton, shrimp, kokanee, and predators.
. b. Monitor zooplankton weekly during spring and fall and monthly the remainder of the year.
. c. Sample shrimp annually to determine density and abundance
. d. Estimate predator abundance using mark and recapture methodology.
. e. Electro-fish shorelines to define impact of near shore predators.
. f. Calculate consumption of predators using bioenergetics and incorporate into energy model.
. g. Survival of wild fry will be correlated to hatchery stocking to determine potential impact of hatchery fish.
5. Keep Eurasian milfoil from becoming a significant problem in Lake Pend Oreille. a. Conduct a literature review of the life history of milfoil.
. b. Map areas of the lake that are milfoil habitat.
. c. Search for milfoil along 100+ miles of shoreline.
. d. Determine limnology at location of milfoil sites.
. e. Design site-specific management recommendations.
. f. Document plant community response during years of deeper drawdown.
6. Determine impact of changed lake levels on riparian vegetation and waterfowl. a. Photo documentation of representative shoreline vegetation will be made during and after years of high water.
. b. A annual waterfowl count will be made from a fixed wing aircraft.

Objective Schedules and Costs

Objective Start Date End Date Measurable Biological Objectives Milestone FY 2000 Cost %
1 10/01/96 12/01/01 55.0%
2 06/01/98 09/01/99 5.0%
3 01/01/98 12/01/99 10.0%
4 10/01/96 12/01/01 20.0%
5 07/01/97 12/01/01 10.0%
6 01/01/97 12/01/01 1.0%

Section 5. Estimated Budget Summary

Itemized Budget

Item Note FY 1999 Cost
Personnel $ 90,000
Fringe $ 20,000
Supplies $ 12,000
Operating $ 20,000
Capital $ 30,000
Travel $ 4,000
Indirect $ 70,000
Subcontractor $115,000
Total Itemized Budget $361,000

Total estimated budget

Total FY 1999 project cost $361,000
Amount anticipated from previously committed BPA Funds $ 0
Total FY 1999 budget request $361,000
FY 1999 forecast from 1998 $ 0
% change from forecast 0.0%

Reason for change in estimated budget

Not applicable

Reason for change in scope

Not applicable

Cost Sharing

Not applicable

Outyear Budget Totals

2000 2001 2002 2003
All Phases $365,000 $379,000 $ 50,000 $ 50,000
Total Outyear Budgets $365,000 $379,000 $ 50,000 $ 50,000

Other Budget Explanation

Schedule Constraints: Project requires the cooperation of the U.S. Army Corps of Engineers to change lake levels each winter. Cooperation has been excellent through the first 2 years of study and is expected to be so during the last year of lake level changes in the winter of 1998-99.

Section 6. References

n/a or no information

Section 7. Abstract


Lake Pend Oreille is the largest natural lake in Idaho; 90,000 acres. Sport fisheries in the lake have been severely impacted by hydropower development on both the inflow and the outflow of the lake (Maiolie and Elam 1993, Fredericks et al. 1995 , Paragamian 1991). Since the 1960's, the lake has been drawn down 6 feet to meet the flood control rule curve and then drawn down an additional 5 feet for electric power production. This last 5 feet of draw down has significantly impacted both kokanee (and the fish that prey on them) and warm water fish species in 23 miles of the Pend Oreille River. This project experimentally raises the lake level 4 feet during 3 winters to determine whether or not lake levels (developing new rule curves) could be used to recover these impacted fisheries. A second part of the project is to determine if predation, competition with shrimp, or competition with hatchery kokanee is responsible for the low fish populations. The goal of the project is to “improve the Lake Pend Oreille ecosystem to the benefit of fish and wildlife, thereby enhancing fishing, recreational opportunities, and other resource values, while managing the lake levels for the balanced benefit of fish, wildlife, flood control, and power production”. Our objectives are provided in section 4. These goals are relevant to the 1994 fish and wildlife program because in mitigates the impact of the federal hydropower system on the lake’s resident fish populations. This project uses an adaptive management methodology; lake level draw downs are changed and the resulting changes to the ecosystem (habitat and fish populations) are monitored. The project is designed to run for 5 years, which is one generation of kokanee. This will give kokanee a chance to grow and become more vulnerable to our sampling gear. We will estimated fish abundance by mid-water trawling, hydroacoustics, gillnetting, electofishing (see tasks in section 4). Our expected outcome is to see statistically significant increases in both cold and warm water fish abundance.

Reviews and Recommendations

This information was not provided on the original proposals, but was generated during the review process.

CBFWA: Resident Fish Review Comments Recommendation:
Fundable if funds available
May 13, 1998
[There are no budget numbers associated with this review.]
Presentation: Lake Pend Oreille is the largest body of water in Idaho and the deepest lake in the county. Cabinet Gorge Dam (Washington Water Power) was built on the inflow and Albeni Falls (Corps) was built on the outflow. Kokanee and bull trout declined after the dams were constructed. The historic kokanee harvest was about 1 million; now it ranges between 100,000 and 200,000 per year. Kokanee are also the main food source for the lake. The Cabinet Gorge kokanee hatchery has operated for 10 years but has not recovered the population. Although it may have stopped the decline, it doesn't provide long-term benefits and is not part of this project. Cabinet Gorge Dam does not have fish passage and kokanee stack up below the dam during the spawning season.

Questions/ Answers:

The third Objective deals with increasing warm water fish populations in the Pend Oreille River. What effect does this have on bull trout? Answer: Bull trout do not frequent the Pend Oreille River.

Objective 5 (milfoil control) is 10% of the budget. This is the biggest stumbling block to the project. Why is milfoil control a ratepayer responsibility? Answer: Milfoil monitoring had to be in place in order for the Corps of Engineers to go ahead with the lake level test. IDFG does not want milfoil to invade the lake and is currently documenting and evaluating it.

Was there a change in the existing species assemblage? Answer: There may have been other species introduced into the lake. Bull trout declined in the 1950's and may not be harvested from Lake Pend Oreille.

What are the outyear projections for this project? Answer: This is a 5-year project – 3 years of high winter lake levels followed by 2 years of low winter lake levels. This may not be long enough to really determine if the lake level test significantly improved kokanee spawning and populations.

Screening Criteria: Yes

Technical Criteria: No. The ratepayers are not responsible for milfoil control. Not convinced that spawning habitat is the limiting factor. The project includes studying food web dynamics and mysis shrimp as well as winter higher lake levels

Programmatic Criteria: Yes

CBFWA Funding Recommendation Recommendation:
May 13, 1998
1999 2000 2001
$361,000 $365,000 $379,000

ISRP Review , ISRP 1998-1 Recommendation:
Jun 18, 1998
[There are no budget numbers associated with this review.]
This proposal is clearly written and for needed research. The monitoring methods are well described, especially the food web studies, but the model should be described in greater detail. The project should be for a longer time (e.g., 10 years) to allow better determination of fish population changes (trends) and their possible correlation with lake factors.

NW Power and Conservation Council's FY 2006 Project Funding Review Funding category:
May 2005
FY05 NPCC Start of Year:
FY06 NPCC Staff Preliminary:
FY06 NPCC July Draft Start of Year:
Sponsor (IDFG) Comments (Go to Original on NPCC Website):

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