Willamette BiOp - Spring Chinook Salmon Hatcheries in the Willamette Basin: Existing Data, Discernable Patterns and Information Gaps - Final Report

Identification Information

Citation

Originator: ODFW

Publish Date: 2010

Online Link: None

BPA Project #:

Contact Information

Agency: Oregon Department of Fish and Wildlife

Name: Jeremy Romer

Job Position: Assistant Project Leader

Telephone: 541-757-4113

E-Mail Address: jeremy.d.romer@odfw.oregon.gov

Description

Abstract: Our findings indicate that UWR spring Chinook salmon hatcheries often, but not always, meet mitigation objectives as measured through juvenile releases and adult returns. Hatchery practices have in many cases served to advance our knowledge of both hatchery and natural production spring Chinook populations, although improvements could be made with respect to data collection, management and analysis. Nevertheless, UWR hatcheries have either been directly involved with or provided support to numerous research efforts that have generated data on adult spring Chinook run sizes, spatial distributions, stock structures, straying rates, production, survivorship, juvenile outmigration, ocean distribution and harvest. We have summarized these data in this report. Our review has also identified numerous critical uncertainties and information gaps related to UWR spring Chinook hatchery programs. We have identified these points through the review of existing data, and developed an exercise to relate these data to previously identified information needs (Chapter 4). Based on our analyses and identification of critical uncertainties, we developed recommendations (Chapter 5) intended to improve the focus and management of UWR spring Chinook hatcheries through research, management and evaluation (RM&E) efforts.

Purpose: This report has been developed in response to Amendment 0001 to the USACE Special Studies and Evaluations Task Order (NWPPM-09-FH-05), which called for “a comprehensive review of the Willamette Basin spring Chinook hatchery program.” To accomplish this task, we have provided a brief overview of upper Willamette River (UWR) spring Chinook salmon biology, status and management (Chapter 2), followed by an extensive review of existing data, past and present hatchery practices and documents used to define program objectives (Chapter 3). We have incorporated information from a wide range of sources into this review, including data from HMIS, RMIS, published literature, technical reports and direct communications with hatchery managers, biologists, and collaborating researchers.

Time Period of Content:

Geographic Extent: Willamette River Basin

Status: Final

Use Constraints:

Format: PDF

Data Quality Information

Lineage-Source: U.S. Army Corps of Engineers, Task Order NWPPM-09-FH-05

Data Information

No data information was supplied.

Entity and Attribute Information

Attributes Description: Field attribute information is available in the database table field descriptions.

Is a physical copy maintained for reference at Headquarters? No