Evaluation of a Selective Troll Fishery for Chinook Salmon off the Oregon Coast During June 1980. Information Report 80-7

Identification Information

Citation

Originator: Johnson, K., D. Loomis and R. McQueen

Publish Date: January 1981

Online Link: None

BPA Project #:

Contact Information

Agency: Oregon Department of Fish and Wildlife

Name: Cedric Cooney

Job Position: Natural Resources Data and Systems Manager

Telephone: 503-947-6094

E-Mail Address: Cedric.X.Cooney@odfw.oregon.gov

Description

Abstract: An experimental chinook-only season was established from June 16 to June 30, 1980, between Cape Falcon and Cape Blanco, with gear limited to 6-inch minimum plugs and whole bait. During this special season, 921 boats landed salmon in Oregon, representing 3,679 days of effort and 29,667 chinook salmon. The special season accounted for 9% of the total 1980 effort and 14% of the season's chinook landings. Logbooks provided information on the incidence of coho released per chinook landed. The coho:chinook ratio for dayboats was 0.47 and the ratio for trip boats was 0. 36. From these ratios, the number of coho hooked and released was estimated to be 11,600. Applying a mortality factor of 30%, approximately 3,500 coho were lost during the special season, a relatively minor part of the 1980 coho stock. The concept of a selective fishery for chinook salmon appears promising. However, the scope of the evaluation in 1980 was limited and niOre detailed studies a·re necessary before the concept of a selective chinook fishery can be widely implemented during periods of concurrent coho abundance.

Purpose:

Time Period of Content: June 16, 1980 to June 30, 1980

Geographic Extent: Cape Falcon and Cape Blanc

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: Not yet described

Bibliography Information

Field Name	Value
Biblio ID	5556 or (253 deleted)
Year	1980
Publisher
Request Type	Information Report
Location	Salem HQ
Date Created
Date Cataloged	6/22/05
Date Published	Jan 1981
Type	info repo
Pages	15 pp
Volume	80-7
Status	2
Descriptor	Chinook; troll fishery; Oregon Coast
Date Entered	2005-06-22 00:00:00
Location In Clackamas Library	S wall, yellow info reports top row
Author	K Johnson; D Loomis; R McQueen; edited by S Lewis
Duplicates	0
Number Remaining After Requests
Presumed All Distributed
Back Room Duplicates
Author	D. Loomis; K. Johnson; R. McQueen; S. Lewis
Risk
Species
Disposition Of Requests	Tim Dalton: Requested, but no copies available
Disposition Of Requests	State Archive: Request filled
Disposition Of Requests	StreamNet Library: Request filled

Is a physical copy maintained for reference at Headquarters? Yes