Comanager Workshop on
Age and Size at Maturity of Pacific Salmon and Steelhead

Date: May 17-19, 2011

Location: Embassy Suites Portland Airport Hotel,
7900 NE 82nd Avenue, Portland, OR 97220

Purpose: Exchange scientific information and empirical data among research scientists, hatchery managers, and other interested parties regarding the biological, environmental, and anthropogenic mechanisms affecting age and size at sexual maturity of Pacific salmon and steelhead, with special emphasis on hatchery and wild populations in the Columbia River Basin.

Goals of workshop:

• Establish a common foundation of knowledge regarding historic time trends for mean age and size at sexual maturity of Pacific salmon and steelhead (e.g., 1950-present).

• Establish a common scientific understanding of the biological, environmental, and anthropogenic mechanisms affecting age and size at maturity of Pacific salmon and steelhead.

• Identify management issues and problems related to age and size at maturity of Pacific salmon and steelhead (e.g., hatchery spawning protocols, run-size forecasts, etc.).

• Identify knowledge gaps and types of data needed to reduce scientific uncertainties regarding the mechanisms affecting age and size at maturity of Pacific salmon and steelhead, especially relevant to management needs and comanager goals. • Identify follow-up tasks to address scientific uncertainties and management needs.

Intended participants: Fishery biologists and managers with state, tribal and federal agencies, university scientists, and other parties with a scientific and/or management interest in the topic.

USFWS logo    Oregon AFS logo

A cooperative project with the Oregon Chapter of the American Fisheries Society