| Year | Accomplishment |
|---|
| 1988 |
From 1988 to date, collected baseline limnological, biological and fisheries data to allow for adaptive management of the hatcheries and hydrosystem. |
| 1988 |
Established coordinated fisheries co-management activities among WDFW, CCT and STI on Lake Roosevelt to facilitate coordinated management activities. |
| 1988 |
Established communcation with local and regional Columbia River stakeholders through special interest groups (i.e., CBFWA, NWPPC, Lake Roosevelt Forum) to include public in fisheries management process. |
| 1990 |
Established hatchery reared kokanee salmon and rainbow trout stocking goals based on food (zooplankton) availability. Set harvest goals based on stocking goals. Articulated the first set of biological objectives for the lake. |
| 1990 |
Established new walleye harvest regulations to maintain a harvestable population. Walleye condition was low suggesting the walleye population was too large for the available food. Regulation changed age and size structure of walleye population. |
| 1991 |
Spokane Tribal Hatchery began operation. First hatchery with primary purpose of providing kokanee salmon and rainbow trout for harvest in Lake Roosevelt. |
| 1991 |
Annually monitor and evaluate the performance of fish from the hatcheries. Based on data collected, hatcheries stocking strategies are adjusted to maximize angler harvest and minimize impacts to wild native species. |
| 1992 |
Sherman Creek Hatchery began operation (managed by WDFW). Hatchery is designed to collect eggs from kokanee returning as adults to spawn at Sherman Creek. |
| 1992 |
Established time frame when kokanee salmon are physiologically predisposed to forming an olfactory imprinted memory of the water in which they are reared suggesting that imprinting could be used to enhance the return of kokanee salmon to Sherman Creek. |
| 1992 |
Discovered that kokanee exhibit weak smoltification characteristics, both physiologically and behaviorally, during their first year of life suggesting that kokanee salmon are likely to entrain during the spring of each year. |
| 1993 |
Surveyed the benthic macroinvertebrate community and estimated terrestrial macroinvertebrate deposition. Discovered benthic and terrestrial macroinvertebrate communities were a limited, insignificant source of food for fish. |
| 1993 |
Established a relationship between water retention time and zooplankton production. Water retention times greater than 30 days is necessary to maximize zooplankton density and biomass. |
| 1994 |
Participated in human health studies that investigated toxin loads (i.e., mercury, PCBs, dioxins and furans) in tissue of walleye, rainbow trout, and kokanee. Also, conducted surveys to estimate fish consumption by anglers. Identified minimal risk. |
| 1994 |
The first year adult kokanee spawners returned to Sherman Cr. as a result of imprinting with artificial chemicals. |
| 1994 |
Hatcheries changed kokanee stocking strategies from fry to yearling releases. Fry provided less than one percent return to harvest and egg collection facilities. Studies suggest yearlings out perform fry by 5 to 10 percent. |
| 1994 |
Changed stocking period of net pens and hatchery reared rainbow trout from April to June. This change minimizes entrainment by releasing fish while the lake is refilling instead of drawing down. |
| 1994 |
Established the need to model the effects of hydro-operations and management actions on the ecosystem and fishery of Lake Roosevelt in order to create compatible management objectives between lower and upper river stakeholders. |
| 1995 |
Established interim Lake Roosevelt hydro-operations rules. If rules are followed fish entrainment will be limited and food production will be enhanced providing for more and bigger fish in the creel. |
| 1995 |
Became member of the TMT to participate with in-season hydro-operations decisions process in an attempt to make hydro-operations which benefit salmon while limiting impacts to Lake Roosevelt ecology. |
| 1997 |
Intensified data collection of lower trophic levels (i.e., phytoplankton, periphyton and zooplankton) to a level appropriate for creating a model of Lake Roosevelt ecosystem. |
| 1998 |
Began providing water quality data to the Lake Roosevelt Water Quality Council for human health considerations. |
| 1998 |
Assisted the Lake Roosevelt Water Quality Council with collection of fish tissues for metal, dioxin and furan toxicity tests. |
| 1998 |
In cooperation with the Sturgeon Project indexed the Lake Roosevelt sturgeon population. Results suggest sturgeon have not recruited to adult stage within Lake Roosevelt for over 20-25 years. |
| 1998 |
Performed initial pelagic hydroacoustic surveys and mapped littoral habitats of the lake. |
| 1998 |
Developed new kokanee harvest regulation, limiting angler harvest to hatchery origin kokanee only. Wild origin kokanee appear to be depressed and in need of protection from harvest. |
| 1999 |
Conducted a bioenergics model run on Lake Roosevelt kokanee salmon and rainbow trout. Determined that food (zooplankton) was not limiting. This information refocused us on entrainment and predation as most likely the main limiting factors. |
| 1999 |
Completed a walleye predation study on kokanee released from Sherman Creek Hatchery. This study estimated that from10 to 20% of the kokanee released were consumed by walleye within the first 3 weeks of release. |
| 1999 |
Identified zooplankton production is greater near shore (Z=17m) than at the thalwag of the lake. Historical and current reservoir zooplankton biomass estimates are based on thalwag sampling and are therefore conservative. |
| 1999 |
Completed a rainbow trout net pen environmental impact assessment. No significant impacts were identified. |
| 1999 |
Mapped shoreline macrohabitat at 8 sites in Lake Roosevelt. |
| 1999 |
Confirmed through a series of studies that Lake Roosevelt kokanee salmon, rainbow trout and other fishes production is primarily limited due to entrainment. |
| 1999 |
Based on matched release studies of kokanee imprinted to artificial chemicals and kokanee not imprinted at Sherman Creek. Determined that the use of artificial imprinting chemicals did not significantly improve adult returns of kokanee to Sherman Creek. |
| 1999 |
Began evaluating redband trout performance in the Lake Roosevelt net pen program, in an attempt to find stocks of indigenous rainbow trout, which perform in the fishery and lend themselves to artificial propagation. |
| 1999 |
Began testing the performance of Kootenay Lake kokanee performance in the Spokane Tribal Hatchery, Sherman Creek Hatchery and Lake Roosevelt fishery. Our goal is to transition fully to indigenous Kootenay Lake kokanee within the next couple of years. |
| 1999 |
Completed a mark-recapture study to estimate the walleye population. This information is used for estimating predation of hatchery origin fish during the first three weeks of release. |
| 2000 |
Imposed new kokanee harvest regulation to limit hooking mortality of wild kokanee. Further limited angler induced mortality of wild kokanee salmon. |
| Objective | Task | Duration in FYs | Estimated 2001 cost | Subcontractor |
|---|
| 1. Refine analyses of trophic interactions and effects of various parameters on trophic levels. |
a. Conduct multivariate or other appropriate statistical analyses with multiyear fisheries and lower trophic level data sets to confirm working hypotheses. |
3 |
$50,000 |
Yes |
|
b. Scientific peer review analyses. |
3 |
$10,000 |
Yes |
|
c. Write studies for publication in professional journals. |
3 |
$40,000 |
Yes |
| 2. Maintain current databases in order to validate, refine and maintain the Lake Roosevelt Ecology Model. |
a. Collect water quality, phytoplankton, zooplankton, and macroinvertebrate community data to monitor temporal-spatial physical, chemical and population indices. |
in perpetuity |
$100,000 |
Yes |
|
b. Estimate population size and habitat use (e.g., water temp use) of pelagic fish species by way of mobile hydroacoustics surveys. |
in perpetuity |
$30,000 |
Yes |
|
c. Monitor temporal-spatial distribution of newly released hatchery fish to estimate timing of vulnerability to entrainment and predation. |
3 |
$10,000 |
Yes |
|
d. Measure littoral habitat type and availability. |
2 |
$50,000 |
Yes |
| 3. Validate and refine the Lake Roosevelt Ecology Model |
a. Use collected data to validate the accuracy of the Lake Roosevelt Ecology Model. |
2 |
$10,000 |
Yes |
|
b. Identify model weaknesses and recommend solutions. |
2 |
$10,000 |
Yes |
|
c. Make refinements to model based on recommendations. |
2 |
$5,000 |
Yes |
| Objective | Task | Duration in FYs | Estimated 2001 cost | Subcontractor |
|---|
| Monitor and evaluate impacts of hatchery origin fish on wild fish and lower trophic levels of Lake Roosevelt. |
a. Conduct fishery surveys through electro-fishing, gillnetting and beach seining during three seasons to assess wild and hatchery fish abundance, feeding habits, habitat use, growth, age structure and food availability. |
In perpetuity |
$110,584 |
Yes |
|
b. Maintain a master data set of current and historical data projects conducted on Lake Roosevelt and its tributaries. |
In perpetuity |
$30,000 |
|
|
c. Conduct analyses sufficient to create an informed recommendations as to hatchery stocking strategies which minimize impacts to wild fish and lower trophic levels. |
In perpetuity |
$63,000 |
|
| Monitor and evaluate various stocks of kokanee salmon and rainbow trout performance in Lake Roosevelt |
a. Mark a minimum of 40,000 hatchery origin rainbow trout with anchor tags. |
4 |
$27,000 |
|
|
b. Mark a minimum of 300,000 hatchery origin kokanee salmon with coded wire tags and adipose clips. |
4 |
$63,000 |
|
|
c. Conduct paired release studies of hatchery kokanee salmon and rainbow trout to determine the best stocks and release strategies which maximize harvest and egg collection will minimizing negative effects to wild fish and entrainment. |
6 |
$160,000 |
|
|
d. Monitor temporal-spatial distribution of newly released hatchery fish to estimate timing of vulnerability to entrainment and predation. |
in perpetuity |
$92,000 |
|
|
e. Estimate walleye population size with mark-recapture studies to determine predator abundance. |
4 |
$8,000 |
|
| Monitor and evaluate the performance of hatchery and wild fish in the Lake Roosevelt fishery. |
a. Conduct Lake Roosevelt creel surveys to estimate angle pressure, harvest and catch. Also evaluate the performance of hatchery and wild fish in the fishery. |
in perpetuity |
$155,000 |
|
| Monitor and evaluate the performance of hatchery and wild fish in the Lake Roosevelt fishery. |
a. Conduct a limited Banks Lake creel survey to estimate angle pressure, harvest and catch of kokanee salmon from the Spokane Tribal Hatchery. |
2 |
$40,000 |
|
| Item | Note | FY 2001 cost |
|---|
| Personnel |
|
$20,000 |
| Fringe |
28% of Salaries |
$5,600 |
| Supplies |
Office Supplies |
$2,000 |
| Travel |
Meeting Rooms |
$2,000 |
| Indirect |
20% of contract less capital equipment and subcontracts |
$5,920 |
| Subcontractor |
Washington Department of Fish and Wildlife |
$7,240 |
| Subcontractor |
Colville Confederated Tribes |
$7,240 |
| Personnel |
|
$80,000 |
| Fringe |
28% of salaries |
$22,400 |
| Supplies |
Fixatives, bottles and sampling equipment |
$4,000 |
| Travel |
Repair/maintenance and fuel for boats and vehicles |
$8,000 |
| Indirect |
20% of contract less capital equipment and subcontracts |
$22,880 |
| Subcontractor |
Washington Department of Fish and Wildlife |
$85,720 |
| Subcontractor |
Eastern Washington University Phytoplankton |
$2,000 |
| Subcontractor |
Spokane Tribal Labs - Nutrients |
$5,000 |
| Subcontractor |
Colville Confederated Tribes |
$75,000 |
| Subcontractor |
Portland State University |
$10,000 |
| Personnel |
|
$184,277 |
| Fringe |
28% of salaries |
$51,597 |
| Supplies |
Tags, gill nets, jars, office, lab gloves, computer software, etc. |
$44,445 |
| Travel |
Training, repair/maintenance and fuel for vehicles and boats, creel mileage, per diem, etc. |
$27,468 |
| Indirect |
20% of contract less capital equipment and subcontracts. |
$64,533 |
| Subcontractor |
Eastern Washington University |
$49,735 |
| Subcontractor |
Washington Department of Fish and Wildlife |
$133,887 |
| Subcontractor |
Colville Confederated Tribes |
$177,760 |
| Other |
Utilities / Communications, and insurance |
$14,882 |
| $1,113,584 |
Although the 2001 budget request is greater than the budget forecasted in 1999, this 2001 budget request does reflect a significant reduction from that contracted in 2000. The 2000 budget was 1.5 million and the current 2001 budget is 1.1 million resulting in a 26% reduction from the 2000 budget. We have made an honest effort to meet our originally forecasted target however, due to the fact that the model and data collection effort are behind schedule, the budget is greater than expected. We are unwilling to abandon our data collection effort prior to having the model up and running. We believe it is foolish to stop data collect activities prior to knowing whether the model can answer questions in place of empirical data. Furthermore, an additional year of intensive data collection will refine model variables and our understanding of trophic relationships, ultimately providing for stronger models and understanding of the biological systems in which we are working.
No change is scope of work.
This information was not provided on the original proposals, but was generated during the review process.