A Review of Trolling Gear Studies on Chinook and Coho Salmon

Identification Information

Citation

Originator: Reed, Paul H.

Publish Date: 1970

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: The two kinds of gear studies pursued by fisheries agencies have been lure selectivity studies and hook type studies. Lure selectivity work suggests that the use of plugs substantially reduces shaker salmon catches over catches on other lure types. However, a reduction in the legal salmon catch was observed. For Chinook this reduction ranged from 51% to 68% of catches made on the most effective lures. Two studies showed that plugs caught larger Chinook than other lures and one of the studies demonstrated a preference for larger plugs and spoons by larger Chinook. Coho mortality differences between fish released from treble and single hooks were not significant. Catch differences between Chinook caught on barbed and barbless hooks were not significant but differences were significant for coho and favored the barbed hook. Tests of immediate mortality differences between barbed and barbless hooks were not significant for sub-legal Chinook but were significant for coho favoring barbless hooks. There was no significance between delayed mortality differences for sub-legal Chinook or coho released from barbed or barbless hooks.

Purpose:

Time Period of Content:

Geographic Extent: Not Available

Status: Final

Use Constraints:

Format: PDF

Data Quality Information

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Data Information

No data information was supplied.

Entity and Attribute Information

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

Bibliography Information

Field Name	Value
Biblio ID	1275
Year	1970
Publisher
Request Type	Report (FCO Marine Fish Pgm)
Location	Coast, OR
Date Created
Date Cataloged
Date Published	1970
Type
Pages	1-21
Volume
Status	0
Descriptor	Coho; Chinook; Ocean Salmon; Harvest; Coast, OR
Date Entered	1/1/1999
Location In Clackamas Library
Author
Duplicates
Number Remaining After Requests
Presumed All Distributed
Back Room Duplicates
Author	Reed, P.H.
Risk	Harvest
Species
Disposition Of Requests	Tim Dalton: Requested, but no copies available
Disposition Of Requests	Jean McCrae - 2: Requested, but no copies available
Disposition Of Requests	StreamNet Library: Requested, but no copies available
Disposition Of Requests	Chris Kern: Requested, but no copies available

Is a physical copy maintained for reference at Headquarters? Unknown