Proposal title | Bull trout life history, genetics, habitat needs, and limiting factors in central and northeast Oregon. |
Proposal ID | 199405400 |
Organization | Oregon Department of Fish and Wildlife and Confederated Tribes of the Warm Springs Reservation, Oregon (ODFW/CTWSRO) |
Proposal contact person or principal investigator |
Name | Alan Hemmingsen |
Mailing address | 28655 Hwy 34 Corvallis, OR 97333 |
Phone / email | 5417574263 / [email protected] |
Manager authorizing this project | Tim Whitesel, PhD, ODFW |
Review cycle | FY 2001 Ongoing |
Province / Subbasin | Columbia Plateau / Deschutes |
Short description | Characterize aspects of bull trout biology to help develop protection and recovery plans for the species in Oregon's portion of the Columbia Basin. |
Target species | |
Year | Accomplishment |
1996 |
Completed sampling and DNA analysis of 46 populations of bull trout in Oregon, Washington and Idaho to describe genetic structure of bull trout populations. |
1996 |
Collected of summer temperature data from streams which contain bull trout and brook trout. |
1996 |
Completed multiple pass spawning surveys of three streams; conducted exploratory surveys in three additional streams. |
1997 |
Conducted distribution and habitat surveys of 17 streams with sympatric populations of bull trout and brook trout (began in 1996). |
1997 |
Conducted radio telemetry study of movements and habitat use of bull trout juveniles and adults. |
1997 |
Collected of summer temperature data from streams which contain bull trout and bull trout. |
1997 |
Completed multiple pass spawning surveys of three streams; conducted exploratory surveys in two additional streams. |
1997 |
Completed statewide bull trout distribution maps (entered into GIS system). |
1997 |
Made two presentations at the annual meeting of the Oregon Chapter, American Fisheries Society. |
1998 |
Completed fieldwork portion of enclosure study of bull trout/brook trout interactions, growth and feeding behavior. |
1998 |
Conducted radio telemetry study of movements and habitat use of bull trout juveniles and adults (ongoing). |
1998 |
Collected of summer temperature data from streams which contain bull trout and bull trout (ongoing). |
1998 |
Conducted adult and juvenile movement studies in upper John Day and Walla Walla subbasins (ongoing). |
1998 |
Completed multiple pass spawning surveys of three streams, spawner population estimate in one stream, and exploratory surveys in one stream (ongoing). |
1998 |
Completed thermal videography of Wenaha River (Grande Ronde subbasin). |
1998 |
Made two presentations at the annual meeting of the Oregon Chapter, American Fisheries Society. |
1998 |
Made two presentations at the annual Salvelinus confluentus Curiosity Society workshop. |
1998 |
Made two presentations at the special bull trout meeting of the North Pacific International Chapter, American Fisheries Society. |
1999 |
Completed analysis of bull trout/brook trout interactions. |
1999 |
Completed laboratory description of bull trout and brook trout diets. |
1999 |
Conducted radio telemetry study of movements and habitat use of bull trout juveniles and adults in upper John Day, Walla Walla, Grande Ronde, and Deschutes subbasins (ongoing). |
1999 |
Collected of summer temperature data from streams which contain bull trout and bull trout (ongoing). |
1999 |
Conducted adult and juvenile movement studies (traps) in upper John Day, Walla Walla, and Deschutes subbasins (ongoing). |
1999 |
Conducted distribution and habitat surveys of three stream systems with sympatric populations of bull trout and brook trout in the Deschutes subbasin. |
1999 |
Completed multiple pass spawning surveys of three streams and exploratory surveys in another four streams (ongoing). |
1999 |
Estimated age at maturity and spawner abundance in one population of bull trout with resident life history form. |
1999 |
Made one presentation at the annual meeting of the Oregon Chapter, American Fisheries Society. |
1999 |
Presented a paper at the Ecology and Management of Northwest Salmonids: Bull Trout II conference in Alberta, Canada. |
1999 |
Published an abstract on bull trout and brook trout feeding behaviors at the Bull Trout II conference above. |
Objective | Task | Duration in FYs | Estimated 2001 cost | Subcontractor |
1. Determine distribution of juvenile and adult bull trout as well as habitats associated with that distribution in portions of the Grande Ronde, John Day, Deschutes and Walla Walla subbasins |
a. Identify areas where bull trout spawn and where juveniles rear. |
3 |
$29,941 |
|
|
b. Identify movement patterns of radio-tagged migratory juvenile bull trout. |
3 |
$14,088 |
|
|
c. Identify movement patterns and characterize habitat use of radio-tagged adult bull trout. |
3 |
$38,236 |
|
|
d. Map juvenile and adult distribution using the Geographic Information System (GIS). |
4 |
$35,533 |
|
2. Determine relationships between stream temperature and distribution of bull trout. |
a. With thermographs, identify summer temperatures experienced by juvenile bull trout in selected streams. |
5 |
$22,164 |
|
|
b. Primarily with thermistor telemetry, identify seasonal temperatures experienced by adult bull trout in the Walla Walla, John Day, Deschutes and Grande Ronde subbasins. |
2 |
$14,964 |
|
|
c. With thermographs and telemetry, identify fall through spring temperatures experienced by migrant juvenile bull trout in selected streams of the John Day subbasin. |
5 |
$17,562 |
|
3. Determine fluvial and resident life history patterns in the upper John Day, Walla Walla, and Deschutes subbasins. |
a. Capture juvenile bull trout and implant them with PIT tags. |
2 |
$22,080 |
|
|
b. Trap upstream migrant adult bull trout and sample for PIT tags. |
5 |
$13,582 |
|
|
c. Collect scales and length data to determine length at age. |
2 |
$27,890 |
|
4. Characterize relationships among bull trout and sympatric species. |
a. Determine the distribution and habitat use of sympatric bull trout and brook trout populations. |
2 |
$11,630 |
|
|
b. Estimate the amount of hybridization between bull trout and brook trout by dorsal fin pigmentation and genetic analysis. |
3 |
$19,272 |
|
|
c. Determine a basis for assessing the relative risk to bull trout by brook trout. |
4 |
$15,764 |
|
|
d. Characterize invertebrate communities in bull trout and brook trout zonations. |
1 |
$15,182 |
|
5. Establish guidelines to monitor the abundance of bull trout using spawning surveys. |
a. Identify variation in spawning distribution. |
5 |
$32,856 |
|
|
b. Identify variation associated with life history form. |
5 |
$23,582 |
|
|
c. Determine variation in spawning timing between years. |
5 |
$32,856 |
|
|
d. Develop indices from spawning survey information. |
2 |
$0 |
|
The position of assistant project leader was unfilled for portions of FY99 and FY00 because of budget shortfalls. Consequently, some data analysis and reporting of results were not completed. Some additional travel and personnel costs are expected in order for this work to be coordinated and completed, within the timeframe of the present contract.
This information was not provided on the original proposals, but was generated during the review process.