Juvenile Salmonid Monitoring in Coastal Oregon and Lower Columbia Streams, 2018 Report Number OPSW-ODFW-2019-3

Identification Information

Citation

Originator: Constable, R. J.

Publish Date: 3/15/2019

Online Link: None, data available upon request

BPA Project #:

Contact Information

Agency: Oregon Department of Fish and Wildlife

Name: Ronald Constable

Job Position: NRS-2 Assistant Project Leader

Telephone: 541-757-5107

E-Mail Address: ron.constable@oregonstate.edu

Description

Abstract: As part of the Oregon Plan for Salmon and Watersheds, the Oregon Department of Fish and Wildlife (ODFW) initiated this project in 1998 to monitor trends in the abundance and distribution of juvenile coho salmon (Oncorhynchus kisutch) and juvenile steelhead (Oncorynchus mykiss) in Western Oregon streams. Snorkel surveys were used to meet this objective. Estimates of distribution and abundance for coho salmon are presented for the three coho Evolutionarily Significant Units and their component strata in Western Oregon for the years 1998-2018. Trends in distribution and abundance of coho salmon are presented for each three year interval, based on the typical coho salmon life cycle. Spawner:parr recruit plots for coho salmon are presented and discussed along with a cursory examination of results with varying pool depth criteria. Estimates of distribution and abundance for steelhead are presented for the four steelhead Distinct Population Segments in Western Oregon for the years 2002-2018. Trends in distribution and abundance of steelhead are presented for each four year interval, based on the typical steelhead life cycle.

Purpose: The purpose of this report is to summarize results from ODFW monitoring efforts for juvenile salmonids in Western Oregon streams.

Time Period of Content: 1998-2018

Geographic Extent: Streams in the Oregon portions of the Oregon Coast Coho, Southern Oregon Northern California, and Lower Columbia River coho Evolutionarily Significant Units

Status: Final

Use Constraints:

Format: PDF file

Data Quality Information

Lineage-Source:

Data Information

Population	Indicators	Metrics
Lower Columbia River Coho ESU	Juvenile outmigrant abundance; Presmolt abundance; Recruits per spawner (juvenile)	Recruits
Lower Columbia River Winter Steelhead DPS	Juvenile outmigrant abundance	None selected
Oregon Coast Coho ESU	Juvenile outmigrant abundance; Presmolt abundance; Recruits per spawner (juvenile)	Recruits

Entity and Attribute Information

Attributes Description: Field attribute information is available in the attached file(s).

Is a physical copy maintained for reference at Headquarters? No