Wenatchee Chinook Parentage - Evaluate the reproductive success of hatchery and wild Chinook salmon in the Wenatchee River

Metadata Updated: April 21, 2022

This project addresses a key uncertainty for evaluating whether hatchery supplementation programs have a net positive contribution to recovery of listed populations. Specifically, what is the relative reproductive success of naturally spawning hatchery fish and what are causes of poor reproductive success of hatchery fish? We are addressing these questions by focusing on the spring Chinook salmon in the Wenatchee River, part of the endangered Upper Columbia River spring Chinook salmon ESU. Our study design uses genetic parentage analysis to assign progeny (sampled at both the smolt and adult life stages) to naturally spawning hatchery and wild origin fish. The progeny counts for each spawner are a measure of reproductive success, and by comparing the mean reproductive success of hatchery and wild spawners, we obtain an estimate of the relative reproductive success (RRS) of the hatchery origin fish. A key part of the study is to include co-variables, such as age, size, run timing, spawning location, and spawning behavior, in the analysis so that the proximate causes of differences in RRS between hatchery and wild fish can be evaluated. The study was initiated in 2004, and we have sampled 10 years of adults and 8 years of smolts. In several papers and reports generated by this project, we have reported on the RRS of spawners sampled in 2004-2007, and 2010, and have found that spawning age, size, and location, in addition to hatchery/wild origin, are important co-factors explaining variation in reproductive success. This has been a highly influential study that addresses a critical uncertainty identified in both recovery plans and biological opinions and has had strong support from the West Coast Regional Office. Microsatellite data from spring run Wenatchee River Chinook salmon.

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License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

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Dates

Metadata Date March 29, 2022
Metadata Created Date November 12, 2020
Metadata Updated Date April 21, 2022
Reference Date(s) June 1, 2000 (creation), January 30, 2017 (publication)
Frequency Of Update

Additional Metadata

Resource Type Dataset
Metadata Date March 29, 2022
Metadata Created Date November 12, 2020
Metadata Updated Date April 21, 2022
Reference Date(s) June 1, 2000 (creation), January 30, 2017 (publication)
Responsible Party (Point of Contact, Custodian)
Contact Email
Guid gov.noaa.nmfs.inport:17898
Access Constraints Cite As: Northwest Fisheries Science Center, [Date of Access]: Wenatchee Chinook Parentage - Evaluate the reproductive success of hatchery and wild Chinook salmon in the Wenatchee River [Data Date Range], https://www.fisheries.noaa.gov/inport/item/17898., Access Constraints: NA |
Bbox East Long -120.3246
Bbox North Lat 48.1812
Bbox South Lat 47.2827
Bbox West Long -121.181
Coupled Resource
Frequency Of Update
Harvest Object Id c4c67bac-1009-46b7-b7d0-a42d1c7a38c4
Harvest Source Id ba43549f-8268-499d-bec8-91b164cb168f
Harvest Source Title NMFS NWFSC
Licence NOAA provides no warranty, nor accepts any liability occurring from any incomplete, incorrect, or misleading data, or from any incorrect, incomplete, or misleading use of the data. It is the responsibility of the user to determine whether or not the data is suitable for the intended purpose.
Metadata Language eng
Metadata Type geospatial
Old Spatial {"type": "Polygon", "coordinates": [[[-121.181, 47.2827], [-120.3246, 47.2827], [-120.3246, 48.1812], [-121.181, 48.1812], [-121.181, 47.2827]]]}
Progress underDevelopment
Spatial Data Service Type
Spatial Reference System
Spatial Harvester True
Temporal Extent Begin 2004-08-02

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