Proposal title | Bull Trout Abundance Monitoring in the Lower Deschutes River formerly "Bull Trout Genetics, Habitat
Needs, L.H. Etc. In Central And N.E. Oregon" |
Proposal ID | 199405401 |
Organization | Confederated Tribes of Warm Springs Reservation, Oregon (CTWSRO) |
Proposal contact person or principal investigator |
Name | Chris Brun |
Mailing address | 3430 W. 10th. The Dalles, OR., 97058 |
Phone / email | 5412961041 / [email protected] |
Manager authorizing this project | Patty O'Toole |
Review cycle | Columbia Plateau |
Province / Subbasin | Columbia Plateau / Deschutes |
Short description | Methods for monitoring juvenile and adult abundance will be evaluated to determine accurate and cost effective means of assessing the recovery of bull trout populations in the lower Deschutes River. |
Target species | Bull Trout |
Year | Accomplishment |
1995 |
Ongoing. Recorded the number of adult immigrants to the Warm Springs R. at the Warm Springs National Fish Hatchery. |
1996 |
Ongoing. Monitored juvenile bull trout emmigrants from Warm Springs R. and Shitike Cr. |
1996 |
Ongoing. Participated in bull trout working groups in the Deschutes and Hood R. subbasins |
1996 |
Determine genetic composition of bull trout in Warm Springs R. and Shitike Cr. |
1998 |
Indentified and mapped juvenile bull trout distribution within the Warm Springs Reservation, Oregon. |
1998 |
Identified and mapped bull trout spawning distribution within the Warm Springs Reservation, Oregon. |
1998 |
Ongoing. Monitored water temperatures in Warm Springs R., Shitike Cr. and Whitewater R. |
1999 |
Indentified movement patterns, using radio telemetry, of adult bull trout in the lower Deschutes R., Warm Springs R, and Shitike Cr. |
1999 |
Ongoing. Participated in bull trout recovery planning in the Deschutes and Hood R. recovery unit chapters. |
1999 |
Ongoing. Conducted juvenile relative abundance monitoring in Warm Springs R. and Shitike Cr. |
1998 |
Ongoing. Conducted basin-wide bull trout redd surveys in Warm Springs R., Shitike Cr. and Whitewater R. |
2000 |
Indentified movement patterns, using radio telemetry, of adult bull trout in the lower Deschutes R., Warm Springs R, and Shitike Cr. |
2000 |
Determined length at age by scale analysis of bull trout in the lower Deschutes R., Warm Springs R. and Shitike Cr. |
2000 |
Field tested the AFS interim protocol to determine juvenile bull trout presence in Mill Cr. |
2000 |
Determined if bull X brook trout hybrids were present in Warm Springs R. and Shitike Cr. |
2001 |
Conducted winter juvenile bull trout distribution surveys in Warm Springs R. and Shitike Cr. |
Objective | Task | Duration in FYs | Estimated 2002 cost | Subcontractor |
1. Monitor trends in relative abundance of juvenile bull trout (Age I-III) in the Deschutes subbasin. |
a. Assess the utility of using “index” reaches for monitoring trends in juvenile bull trout relative abundance in the Warm Springs River |
ongoing |
$10,000 |
|
|
b. Conduct juvenile bull trout abundance surveys in Shitike Creek |
ongoing |
$10,000 |
|
2. Determine the sampling efficiency of night snorkeling by comparing day and night snorkeling to electrofishing. |
a. Compare the probability of detecting bull trout using day snorkeling, night snorkeling, electrofishing to an unbiased estimate of the true population. |
1 |
$20,000 |
|
|
b. Describe the influence of physical channel features including stream size, water temperature, conductivity, channel complexity, and abundance of cover on probabilities of detecting bull trout. |
1 |
$20,000 |
|
3. Monitor trends in adult bull trout abundance using redd surveys in Warm Springs River and Shitike Creek. |
a. Count the total number of bull trout redds in both streams. |
ongoing |
$8,000 |
|
|
b. Determine if there is a significant difference between years in the distribution of redds within each stream. |
ongoing |
$8,000 |
|
|
c. Determine if there is a significant difference among years in the timing of spawning. |
ongoing |
$7,000 |
|
4. Determine escapement of adult fluvial bull trout in the Warm Springs River and Shitike Creek. |
a. Estimate the number of adult fluvial bull trout entering the spawning grounds in Warm Springs R. using time-lapse underwater videography. |
5 |
$35,000 |
|
|
b. Estimate the number of adult fluvial bull trout entering Shitike Cr. using a weir and fish trap. |
5 |
$15,000 |
|
|
c. Determine the adult per redd ratio in Shitike Cr. and Warm Springs R. and estimate the abundance of spawners from redd counts. |
5 |
$4,000 |
|
No budget projections were made for 2002. During FY 2001 $92,064 was allocated to CTWSRO.
The objectives for the CTWSRO portion of project 9405400 will be met by the end of FY 2001. The proposed budget will fund new objectives and tasks submitted in this proposal.
This information was not provided on the original proposals, but was generated during the review process.
The proposal implies that part of the rationale for the comparison of sampling methods is the inclusion of the Deschutes data into a larger regional bull trout dataset being assembled by Russ Thurow and colleagues at the USFS Rocky Mountain Experiment Station in Boise. The presentation amplified this relationship. The proposal needs to provide additional documentation on the linkage to the USFS regional protocol and the involvement of Thurow et al., even if no funding is allocated to the Boise station.
Study reaches need to be selected in cooperation with Projects #25088 and #25010.
Use of index reaches (Objective 1 and 3) or survey of known spawning ground surveys (Objective 3) have proven to be unacceptable in most fisheries monitoring and evaluation programs, e.g., the Oregon Coastal Coho surveys where they have been replaced by probabilistic sampling procedures developed by the EPA\EMP program. Selection of long-term sampling reaches for this project should be selected in cooperation with Projects #25088 and #25010. "Index sites" could be used for development of subsampling procedures, but they should be part of a systematic sample of collocated sites if possible.