Columbia Basin Fish and Wildlife Program Columbia Basin Fish and Wildlife Program
SOW Report
Contract 56538: 2003-039-00 EXP WDFW-MONITOR REPRO IN WENAT/TUC/KAL
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Monitor and Evaluate (M&E) Reproductive Success and Survival in Wenatchee River
Province Subbasin %
Columbia Cascade Wenatchee 100.00%
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Contract Description:
This project will quantitatively evaluate the relative reproductive success of naturally spawning hatchery and natural origin spring Chinook salmon in the Wenatchee River. Hatcheries are one of the main tools that have been used to mitigate for salmon losses caused by the construction and operation of the Columbia River hydropower system.  In addition to harvest augmentation, hatcheries have recently been used in attempts to protect stocks from extinction and to enhance natural production (supplementation).  Surprisingly, little is known about how much the investment in hatcheries benefits or harms natural production.  We propose to take advantage of recent technological advances in genetics to empirically monitor the reproductive success of hatchery and natural spring Chinook salmon using a DNA-based pedigree approach.  Specifically, we will (1) directly measure the relative reproductive success of hatchery and natural-origin Chinook salmon in both natural and hatchery settings, (2) determine the degree to which any differences in reproductive success between hatchery and natural Chinook salmon can be explained by measurable biological characteristics such as run timing or size, and (3) estimate the relative fitness of hatchery-lineage Chinook salmon after they have experienced an entire generation in the natural environment.  The project is intended to last until 2018 in order to evaluate two entire spring Chinook salmon generations.

In 2011, much of the work to be performed will be similar to previous years.  However, based on past results more emphasis will be collecting data on redd morphology from throughout the spawning areas not simply the index areas.  If observed trends in productivity are real (i.e.,  redd location farther upstream = higher productivity), then we should be able to determine what factors (e.g., biological, habitat or environmental) are responsible for those trends.  Explaining observed differences in reproductive success is one of our primary objectives and has not been reported in the literature.    

This project is a collaboration between NOAA-Fisheries (Northwest Fisheries Science Center) and the Washington Department of Fish and Wildlife.  The combined budget total will be in alignment with the approved budget for the project.  Results and progress will be reported on jointly.  For example, a joint authored, single annual report will be generated for the contract period.

This project is an extension of the Chinook salmon supplementation and monitoring program in the Wenatchee River operated by WDFW and funded by Chelan County PUD.
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* Expenditures data includes accruals and are based on data through 31-May-2022.

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Contract Type:
Contract (IGC)
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Cost Reimbursement (CNF)
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Viewing of Work Statement Elements

Deliverable Title WSE Sort Letter, Number, Title Start End Complete
Environmental Compliance Documentation A: 165. Environmental Compliance 02/28/2013 02/25/2013
Submit Draft to Final Contract Package and Financial Reports B: 119. Manage BPA contracting requirements 01/10/2013 01/10/2013
Collection of Juvenile DNA Samples C: 157. Juvenile Sample Collection 07/31/2012 06/30/2012
PIT Tag Spring Chinook D: 158. PIT Tag Spring Chinook 10/31/2012 10/31/2012
Collection of Adult DNA Samples E: 157. Adult Sample Collection 08/31/2012 08/31/2012
Conduct Spawning Ground Surveys F: 157. Spawning Ground Surveys 12/31/2012 12/30/2012
Analysis of Spawning Ecology Data G: 162. Analyze Spawning Ecology Data 02/28/2013 02/25/2013
Supervision of Data Collection H: 162. Project Oversight of Juvenile and Adult Sampling and Spawning Ecology 01/31/2013 01/31/2013
Attach Progress Report in Pisces J: 132. Submit Progress Report for the period (Mar 2011) to (Feb 2012) 09/03/2012 09/03/2012

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Primary Focal Species Work Statement Elements
Chinook (O. tshawytscha) - Upper Columbia River Spring ESU (Endangered)
  • 3 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 Environmental Compliance 03/01/2012
B 119 Manage BPA contracting requirements 03/01/2012
C 157 Juvenile Sample Collection 03/01/2012
D 158 PIT Tag Spring Chinook 03/01/2012
E 157 Adult Sample Collection 03/01/2012
F 157 Spawning Ground Surveys 03/01/2012
G 162 Analyze Spawning Ecology Data 03/01/2012
H 162 Project Oversight of Juvenile and Adult Sampling and Spawning Ecology 03/01/2012
I 185 Periodic Status Reports for BPA 03/01/2012
J 132 Submit Progress Report for the period (Mar 2011) to (Feb 2012) 03/01/2012