OWEB Project Number 216-5042-12451 Phase IV - Wallowa Mountains Bull Trout Monitoring, Final Report

Identification Information

Citation

Originator: Gretchen Sausen

Publish Date: 11/10/2018

Online Link: None

BPA Project #:

Contact Information

Agency: United States Fish & Wildlife Service

Name: Gretchen Sausen

Job Position: Fish and Wildlife Biologist

Telephone: 541-962-8695

E-Mail Address: gretchen_sausen@fws.gov

Description

Abstract: Bull trout were listed as threatened under the Endangered Species Act in 1998 due to declining populations. Spawning survey data is important for determining relative abundance and distribution trends in bull trout populations. Without adequate funding, it has been difficult to find sufficient numbers of experienced bull trout surveyors and packers for surveys in the back-country, and to obtain adequate supplies to get the work accomplished. OWEB funding supported the continued survey of bull trout spawning areas in years 2016 through 2018 in the Grande Ronde and Imnaha drainages of northeast Oregon. Surveys were conducted by fisheries consultants, the Service, Nez Perce Tribe, the Oregon Department of Fish and Wildlife, U.S. Forest Service, Freshwater Trust, Wallowa Resources, Anderson Perry, Inc., Grande Ronde Model Watershed, and volunteers. Timing of spawning, total redds, redd sizes, and redd locations are documented in the attached report. In 2016-2018, surveys were located on the Lostine and Imnaha Rivers, and Big Sheep and Bear Creeks. In addition, the Upper Minam and Wenaha were surveyed in 2018. OWEB funding helped to accomplish a total of 43.3, 41.1, and 71.7 stream miles surveyed in 2016, 2017, and 2018, respectively.

Purpose:

Time Period of Content: Grant was for 2016-2018, report summarizes these years and past years, generally comparing 2000-2018

Geographic Extent: Bull Trout spawning areas within Grande Ronde and Imnaha basins

Status: Final

Use Constraints:

Format: pdf

Data Quality Information

Lineage-Source:

Data Information

No data information was supplied.

Entity and Attribute Information

Attributes Description: Final report

Is a physical copy maintained for reference at Headquarters? Unknown