Event Title

Mass Marking with Salmon Otoliths

Presentation Abstract

In the North Pacific over a billion salmon are otolith thermally marked annually. In Washington State greater than 30 million Chinook, Chum and Sockeye are marked in the Columbia River, Coastal Washington and the Salish Sea each year. The goal of this marking program is to provide a cost effective mass marking tool that can provide fisheries manager’s accurate information regarding brood year of returning adults and the contribution of hatchery and wild fish to fisheries and escapement estimates. Though infrastructure costs to existing hatcheries can seem high, once in place provide a low cost marking program that can effectively mark 100% of the hatchery production. The benefits and limitations of an otolith marking program in relation to other marking techniques will be discussed.

Session Title

Session S-08D: Salmon Recovery: Implementation and Progress I

Conference Track

Species and Food Webs

Conference Name

Salish Sea Ecosystem Conference (2014 : Seattle, Wash.)

Document Type

Event

Start Date

1-5-2014 5:00 PM

End Date

1-5-2014 6:30 PM

Location

Room 6C

Contributing Repository

Digital content made available by University Archives, Heritage Resources, Western Libraries, Western Washington University.

Rights

This resource is displayed for educational purposes only and may be subject to U.S. and international copyright laws. For more information about rights or obtaining copies of this resource, please contact University Archives, Heritage Resources, Western Libraries, Western Washington University, Bellingham, WA 98225-9103, USA (360-650-7534; heritage.resources@wwu.edu) and refer to the collection name and identifier. Any materials cited must be attributed to the Salish Sea Ecosystem Conference Records, University Archives, Heritage Resources, Western Libraries, Western Washington University.

Type

Text

Language

English

Format

application/pdf

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May 1st, 5:00 PM May 1st, 6:30 PM

Mass Marking with Salmon Otoliths

Room 6C

In the North Pacific over a billion salmon are otolith thermally marked annually. In Washington State greater than 30 million Chinook, Chum and Sockeye are marked in the Columbia River, Coastal Washington and the Salish Sea each year. The goal of this marking program is to provide a cost effective mass marking tool that can provide fisheries manager’s accurate information regarding brood year of returning adults and the contribution of hatchery and wild fish to fisheries and escapement estimates. Though infrastructure costs to existing hatcheries can seem high, once in place provide a low cost marking program that can effectively mark 100% of the hatchery production. The benefits and limitations of an otolith marking program in relation to other marking techniques will be discussed.