Development of a system-wide Predator Control Program: Indexing and Fisheries Evaluation - Columbia and Snake Rivers

Identification Information

Citation

Originator: Oregon Department of Fish and Wildlife - Columbia River Investigations

Publish Date: March 2007

Online Link: None

BPA Project #:

Contact Information

Agency: Oregon Department of Fish and Wildlife

Name: Howard Takata

Job Position: Project Leader

Telephone: (971) 673-6065

E-Mail Address: Howard.K.Takata@odfw.oregon.gov

Description

Abstract: The Northern Pikeminnow Management Program (NPMP), a fishery aimed at reducing predation on juvenile salmonids by northern pikeminnow (Ptychocheilus oregonensis), was implemented for the 16th consecutive year in the mainstem Columbia and Snake rivers. We report on (1) northern pikeminnow exploitation rates, predation estimates, spaghetti tag loss rates, and age validation work; (2) population parameters of northern pikeminnow, smallmouth bass (Micropterus dolomieu), and walleye (Sander vitreus) in The Dalles and John Day reservoirs, and (3) possible compensatory responses by these species.

Purpose:

Time Period of Content: 1990-2006: Focus on 2006

Geographic Extent: Columbia and Snake Rivers

Status: Final

Use Constraints:

Format: PDF file

Data Quality Information

Lineage-Source:

Data Information

No data information was supplied.

Entity and Attribute Information

Attributes Description: Annual Report

Is a physical copy maintained for reference at Headquarters? Unknown