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Alaska Fisheries Science Center Metadata Librar... > Auke Bay Laboratories >

AFSC/ABL: Chum salmon bycatch genetic stock identification 1994-1995 Bering Sea

Data Set (DS)  |  Alaska Fisheries Science Center (AFSC)
GUID: gov.noaa.nmfs.inport:17237  |  Updated: May 15, 2025  |  Published / External 
Summary
Item Identification
Keywords
Physical Location
Data Set Info
Support Roles
Extents
Access Info
Distribution Info
Tech Environment
Data Quality
Data Management
Lineage
Catalog Details

Summary

Short Citation
Alaska Fisheries Science Center, 2026: AFSC/ABL: Chum salmon bycatch genetic stock identification 1994-1995 Bering Sea, https://www.fisheries.noaa.gov/inport/item/17237.
Full Citation Examples

Abstract

In some years, the Bering Sea trawl fishery incidentally harvests (bycatch) large numbers of chum salmon. Because chum salmon were declining in some western Alaska areas, the origins of the chum salmon bycatch were important. Tagging studies have shown that chum salmon originating in Asia and North America migrate through the eastern Bering Sea. Genetic stock identification (GSI), a method of estimating stock composition in mixed-stock fisheries, has helped in evaluating stock contributions to salmon fisheries on the western coast of North America. Through cooperative efforts between state and federal agencies, a comprehensive genetic baseline for Pacific Rim chum salmon stocks has been developed, which enables GSI in fisheries such as the Bering Sea trawl fishery.

In 1994, the National Marine Fisheries Service, Auke Bay Laboratory, initiated a feasibility study of GSI in determining the origins of the chum salmon bycatch in the Bering Sea trawl fishery. Sampling in 1995 was intensified and resulted in samples covering the entire fishing season, representing nearly 11% of the total chum salmon bycatch.

Estimates for our 1994 fishery samples over three period were 39-55% Asian stocks, 20-35% western Alaska stocks, and 21-29% southeastern Alaska, British Columbia, or Washington stocks. One small sample (N=47) of maturing fish showed a surprisingly large contribution of British Columbia stocks (53%). Estimates for our 1995 samples over seven time periods were 13-51% Asian stocks, 33-53% western Alaska stocks, and 9-46% southeastern Alaska, British Columbia, or Washington stocks. As in 1994, the sample of maturing fish (N=277) showed a large contribution of British Columbia stocks (49%) and Washington stocks (25%).

Purpose

This data set contains the genetic bycatch data.

Data Access & Downloads

Access Constraints:

For scientific, management, and regulation compliance purposes, these data are confidential under the Magnuson-Stevens Fishery Conservation and Management Act; as amended, Public Law 109-479; 16 U.S.C. 1953; implemented at 50 CFR 679.50. Therefore unprocessed (raw) data can be shared only with authorized persons; however aggregated forms of the data are generally available.

Use Constraints:

The user must adhere to restrictions placed on publication of data by the Magnuson-Stevens Fishery Conservation and Management Act.

Controlled Theme Keywords

biota

Child Items

No Child Items for this record.

Contact Information

Point of Contact
Chris Kondzela
Chris.Kondzela@noaa.gov

Extents

Geographic Area 1

-179.3° W, -163° E, 60° N, 52° S

Alaska, Bering Sea

Time Frame 1
1994
Time Frame 2
1995

Item Identification

Title: AFSC/ABL: Chum salmon bycatch genetic stock identification 1994-1995 Bering Sea
Short Name: AFSC/ABL: Chum salmon bycatch genetic stock identification 1994-1995 Bering Sea
Status: Completed
Publication Date: 1998-12-01
Abstract:

In some years, the Bering Sea trawl fishery incidentally harvests (bycatch) large numbers of chum salmon. Because chum salmon were declining in some western Alaska areas, the origins of the chum salmon bycatch were important. Tagging studies have shown that chum salmon originating in Asia and North America migrate through the eastern Bering Sea. Genetic stock identification (GSI), a method of estimating stock composition in mixed-stock fisheries, has helped in evaluating stock contributions to salmon fisheries on the western coast of North America. Through cooperative efforts between state and federal agencies, a comprehensive genetic baseline for Pacific Rim chum salmon stocks has been developed, which enables GSI in fisheries such as the Bering Sea trawl fishery.

In 1994, the National Marine Fisheries Service, Auke Bay Laboratory, initiated a feasibility study of GSI in determining the origins of the chum salmon bycatch in the Bering Sea trawl fishery. Sampling in 1995 was intensified and resulted in samples covering the entire fishing season, representing nearly 11% of the total chum salmon bycatch.

Estimates for our 1994 fishery samples over three period were 39-55% Asian stocks, 20-35% western Alaska stocks, and 21-29% southeastern Alaska, British Columbia, or Washington stocks. One small sample (N=47) of maturing fish showed a surprisingly large contribution of British Columbia stocks (53%). Estimates for our 1995 samples over seven time periods were 13-51% Asian stocks, 33-53% western Alaska stocks, and 9-46% southeastern Alaska, British Columbia, or Washington stocks. As in 1994, the sample of maturing fish (N=277) showed a large contribution of British Columbia stocks (49%) and Washington stocks (25%).
Purpose:

This data set contains the genetic bycatch data.
Notes:

Loaded by batch 3855, 12-18-2012 17:55

Keywords

Theme Keywords

Thesaurus Keyword
ISO 19115 Topic Category
biota

Spatial Keywords

Thesaurus Keyword
UNCONTROLLED
Geographic Names Information System Alaska
Geographic Names Information System Bering Sea

Physical Location

Organization: Auke Bay Laboratories
City: Juneau
State/Province: AK
Country: US

Data Set Information

Data Set Scope Code: Data Set
Data Set Type: Files
Maintenance Frequency: None Planned
Data Presentation Form: Document (digital)

Support Roles

Data Steward

CC ID: 233736
Date Effective From: 2015-10-17
Date Effective To:
Contact (Person): Kondzela, Chris
Address:
Email Address: Chris.Kondzela@noaa.gov

Distributor

CC ID: 233734
Date Effective From: 2015-10-17
Date Effective To:
Contact (Person): Kondzela, Chris
Address:
Email Address: Chris.Kondzela@noaa.gov

Originator

CC ID: 81512
Date Effective From: 2012-12-18
Date Effective To:
Contact (Person): Kondzela, Chris
Address:
Email Address: Chris.Kondzela@noaa.gov

Point of Contact

CC ID: 233735
Date Effective From: 2015-10-17
Date Effective To:
Contact (Person): Kondzela, Chris
Address:
Email Address: Chris.Kondzela@noaa.gov

Extents

Currentness Reference: Ground Condition

Extent Group 1

Extent Group 1 / Geographic Area 1

CC ID: 81511
W° Bound: -179.3
E° Bound: -163
N° Bound: 60
S° Bound: 52
Description

Alaska, Bering Sea

Extent Group 1 / Time Frame 1

CC ID: 81509
Time Frame Type: Discrete
Start: 1994

Extent Group 1 / Time Frame 2

CC ID: 81510
Time Frame Type: Discrete
Start: 1995

Access Information

Security Class: Unclassified
Data Access Procedure:

N/A
Data Access Constraints:

For scientific, management, and regulation compliance purposes, these data are confidential under the Magnuson-Stevens Fishery Conservation and Management Act; as amended, Public Law 109-479; 16 U.S.C. 1953; implemented at 50 CFR 679.50. Therefore unprocessed (raw) data can be shared only with authorized persons; however aggregated forms of the data are generally available.
Data Use Constraints:

The user must adhere to restrictions placed on publication of data by the Magnuson-Stevens Fishery Conservation and Management Act.

Distribution Information

Distribution 1

CC ID: 233737
Download URL: https://www.ncei.noaa.gov/
Distributor:
Description:

NCEI to be determined

Technical Environment

Description:

Microsoft Excel Spreadsheet

Data Quality

Completeness Report:

None
Quality Control Procedures Employed:

Contact the dataset POC for full QA/QC methodology

Data Management

Have Resources for Management of these Data Been Identified?: Yes
Approximate Percentage of Budget for these Data Devoted to Data Management: Unknown
Do these Data Comply with the Data Access Directive?: Yes
Is Access to the Data Limited Based on an Approved Waiver?: Yes
If Distributor (Data Hosting Service) is Needed, Please Indicate: yes
Approximate Delay Between Data Collection and Dissemination: unknown
If Delay is Longer than Latency of Automated Processing, Indicate Under What Authority Data Access is Delayed:

no delay
Actual or Planned Long-Term Data Archive Location: To Be Determined
If To Be Determined, Unable to Archive, or No Archiving Intended, Explain:

NCEI site yet to be determined
Approximate Delay Between Data Collection and Archiving: unknown
How Will the Data Be Protected from Accidental or Malicious Modification or Deletion Prior to Receipt by the Archive?:

IT Security and Contingency Plan for the system establishes procedures and applies to the functions, operations, and resources necessary to recover and restore data as hosted in the Western Regional Support Center in Seattle, Washington, following a disruption.

Lineage

Lineage Statement:

Contact the dataset POC for full methodology

Catalog Details

Catalog Item ID: 17237
GUID: gov.noaa.nmfs.inport:17237
Metadata Record Created By: SysAdmin InPortAdmin
Metadata Record Created: 2012-12-18 17:55+0000
Metadata Record Last Modified By: SysAdmin InPortAdmin
Metadata Record Last Modified: 2025-05-15 19:15+0000
Metadata Record Published: 2016-05-05
Owner Org: AFSC
Metadata Publication Status: Published Externally
Do Not Publish?: N
Metadata Last Review Date: 2016-05-05
Metadata Review Frequency: 1 Year
Metadata Next Review Date: 2017-05-05