Columbia Basin Fish and Wildlife Program Columbia Basin Fish and Wildlife Program
SOW Report
Contract 67669: 2008-308-00 EXP WILLAMETTE FALLS LAMPREY STUDY
Project Number:
Title:
Willamette Falls Lamprey Escapement Estimate
Stage:
Implementation
Area:
Province Subbasin %
Lower Columbia Willamette 100.00%
Contract Number:
67669
Contract Title:
2008-308-00 EXP WILLAMETTE FALLS LAMPREY STUDY
Contract Continuation:
Previous: Next:
63858: 2008-308-00 EXP WILLAMETTE FALLS LAMPREY STUDY
  • 72089: 2008-308-00 EXP WILLAMETTE FALLS LAMPREY STUDY
Contract Status:
Closed
Contract Description:
Pacific lamprey (Entosphenus tridentatus) populations throughout the Columbia River Basin (CRB) are in decline.  Multiple reasons for the decline have been identified including passage at mainstem CRB dams and habitat degradation.  Little is known about factors limiting production in CRB tributaries.  Due to declining abundance of lamprey in the Columbia River, harvest has been limited, with the primary collection location for the four Treaty Tribes (Warm Springs, Yakama, Umatilla, and Nez Perce) at Willamette Falls on the Willamette River (Rkm 42.6) in Oregon City.  Declining lamprey populations are of primary concern to the Confederated Tribes of Warm Springs Reservation, Oregon (CTWSRO) due to their high cultural and environmental value.  Once a staple food in winter, and present at ceremonies, lamprey is often absent due to lack of availability.  Despite the cultural significance of this fishery, the first estimate of adult escapement in the Willamette River was in 2010 and occurred as a result of this study.  Prior to this estimate, harvest had been the only indicator of trends in abundance.  Harvest rates are poor indicators of abundance because they vary greatly due to increased catch regulations and restrictions.    Recent changes in Oregon fishing regulations promoted greater protection for Willamette River Pacific Lamprey.  Commercial harvest on Pacific lamprey at Willamette Falls ceased in 2002 and use of Pacific lamprey for bait was banned in 2005.  Currently, harvest at Willamette Falls is primarily conducted by tribes.  This project estimates escapement of lamprey through fish ladders at Willamette Falls, is working towards quantifying escapement over the “horseshoe” portion of the falls, including the historic fishway, and conducts creel surveys to document harvest.  Data collected, including lamprey escapement and harvest, are intended to provide population status and trends for federal, state, and tribal resource managers and to help protect fishing opportunities at Willamette Falls for tribes that may be restricted as result from lack of data to demonstrate adequate escapement.
Account Type(s):
Expense
Contract Start Date:
04/01/2015
Contract End Date:
03/31/2016
Current Contract Value:
$134,956
Expenditures:
$134,956

* Expenditures data includes accruals and are based on data through 30-Apr-2021.

BPA CO:
Env. Compliance Lead:
Work Order Task(s):
Contract Type:
Contract (IGC)
Pricing Method:
Cost Reimbursement (CNF)
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Viewing of Work Statement Elements

Deliverable Title WSE Sort Letter, Number, Title Start End Complete
Ensure environmental compliance requirements are complete A: 165. Complete Environmental Compliance Requirements 03/31/2016 03/31/2016
Willamette Falls Pacific Lamprey Technical Working Group (WFPLTWG) B: 191. Participate in Willamette Falls Pacific Lamprey Technical Working Group (WFPLTWG) 03/31/2016 03/31/2016
Install HDX antennae on lamprey ramps C: 70. Install HDX antennae on lamprey ramps 10/31/2015 06/24/2015
Install HDX antennae in the old fishway D: 70. Install HDX antennae in the old fishway 10/31/2015 05/11/2015
Capture, Mark, Inspect Lamprey and Operate HDX Array(s) at Willamette Falls E: 157. Collect and examine lamprey to calculate adult escapement 03/31/2016 03/31/2016
Tag adult lamprey at Willamette Falls F: 158. HDX tag adult Pacific lamprey at Willamette Falls 03/31/2016 03/31/2016
Conduct creel surveys G: 157. Conduct creel surveys 03/31/2016 03/31/2016
Estimate Lamprey Harvest at Willamette Falls H: 162. Record and Report Harvest 03/31/2016 03/31/2016
Develop Statistical Model for Annual Lamprey Population Estimates at Willamette Falls I: 162. Develop Statistical Model for Population Escapement 03/31/2016 03/31/2016
All administrative tasks fulfilled with timely quality products J: 119. Manage Project 03/31/2016 03/31/2016
Progress Report has been published K: 132. Submit Progress Report for the period April 1, 2014 - December 31, 2015 03/31/2016 03/31/2016

Viewing of Implementation Metrics
Viewing of Environmental Metrics Customize

Primary Focal Species Work Statement Elements
Lamprey, Pacific (Entosphenus tridentata)
  • 2 instances of WE 70 Install Fish Monitoring Equipment
  • 2 instances of WE 157 Collect/Generate/Validate Field and Lab Data
  • 1 instance of WE 158 Mark/Tag Animals
  • 2 instances of WE 162 Analyze/Interpret Data

Sort WE ID WE Title NEPA NOAA USFWS NHPA Has Provisions Inadvertent Discovery Completed
A 165 Complete Environmental Compliance Requirements 04/01/2015
B 191 Participate in Willamette Falls Pacific Lamprey Technical Working Group (WFPLTWG) 04/01/2015
C 70 Install HDX antennae on lamprey ramps 04/01/2015
D 70 Install HDX antennae in the old fishway 04/01/2015
E 157 Collect and examine lamprey to calculate adult escapement 04/01/2015
F 158 HDX tag adult Pacific lamprey at Willamette Falls 04/01/2015
G 157 Conduct creel surveys 04/01/2015
H 162 Record and Report Harvest 04/01/2015
I 162 Develop Statistical Model for Population Escapement 04/01/2015
J 119 Manage Project 04/01/2015
K 132 Submit Progress Report for the period April 1, 2014 - December 31, 2015 04/01/2015
L 185 Periodic Status Reports for BPA 04/01/2015