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Short Citation:
Alaska Fisheries Science Center, 2023: AFSC/ABL: 2005 Chum Salmon Bycatch Sample Analysis Bering Sea,

Item Identification

Title: AFSC/ABL: 2005 Chum Salmon Bycatch Sample Analysis Bering Sea
Short Name: AFSC/ABL: 2005 Chum Salmon Bycatch Sample Analysis Bering Sea
Status: Completed
Publication Date: 2010

A genetic analysis of samples from the chum salmon (Oncorhynchus keta) bycatch of the 2005 Bering Sea walleye pollock (Theragra chalcogramma) trawl fishery was undertaken to determine the overall stock composition of the sample set. Samples were genotyped for eleven microsatellite markers and results were estimated using the current chum salmon microsatellite baseline. In 2005, genetic samples were collected opportunistically as part of a special project and supplemented with archived scales from the Observer Program. Sample biases have the potential to affect stock composition analysis results; consequently, stock composition estimates apply to the sample set and may not represent the entire chum salmon bycatch. Based on the analysis of 1,084 chum salmon bycatch samples collected throughout the 2005 Bering Sea trawl fishery, East Asian (29%), North Asian (29%), Pacific Northwest (19%) and Western Alaska (16%) stocks dominated the sample set with smaller contributions from Southwest Alaska (<2%) and the Upper/Middle Yukon River (5%) stocks. The estimates for the 2005 chum salmon bycatch sample set were similar to the 1994-1995 chum salmon bycatch estimates, suggesting consistency of the regional stock contributions across years. Analysis of temporal groupings within the groundfish B season revealed changes in stock composition during the course of the season. Whether the decreasing proportional contributions of Western Alaska and Upper/Middle Yukon stocks and increasing proportional contributions from Asia over time are due to temporal or spatial differences in the sample set are unknown.


This dataset contains the data from genetic analyses of fish captured in 2005 in the Bering Sea.


Loaded by FGDC Metadata Uploader, batch 5993, 05-01-2015 20:15

The following FGDC sections are not currently supported in InPort, but were preserved and will be included in the FGDC export:

- Taxonomy (FGDC:taxonomy)


Theme Keywords

Thesaurus Keyword
ISO 19115 Topic Category
ITIS chum salmon
ITIS Oncorhynchus keta

Spatial Keywords

Thesaurus Keyword
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
Maintenance Frequency: None Planned
Data Presentation Form: maps and data
Distribution Liability:

The user is responsible for the results of any application of this data for other than its intended purpose.

Support Roles

Data Steward

CC ID: 201121
Date Effective From: 2015-05-01
Date Effective To:
Contact (Person): Kondzela, Chris
Email Address:


CC ID: 201120
Date Effective From: 2015-05-01
Date Effective To:
Contact (Person): Kondzela, Chris
Email Address:

Metadata Contact

CC ID: 201118
Date Effective From: 2015-05-01
Date Effective To:
Contact (Person): MC, Metadata Coordinators
Email Address:


CC ID: 201122
Date Effective From: 2015-05-01
Date Effective To:
Contact (Person): Kondzela, Chris
Email Address:

Point of Contact

CC ID: 201119
Date Effective From: 2015-05-01
Date Effective To:
Contact (Person): Kondzela, Chris
Email Address:


Currentness Reference: Ground Condition

Extent Group 1

Extent Group 1 / Geographic Area 1

CC ID: 201117
W° Bound: -177.67
E° Bound: -163.77
N° Bound: 60.58
S° Bound: 54.3

Alaska, Bering Sea

Extent Group 1 / Time Frame 1

CC ID: 201116
Time Frame Type: Range
Start: 2005-02-09
End: 2005-10-01

Access Information

Security Class: Unclassified
Data Access Procedure:


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:

User must read and fully comprehend the metadata prior to use. Data should not be used beyond the limits of the source scale. Acknowledgement of NOAA, as the source from which these data were obtained, in any publications and/or other representations of these data is suggested. 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: 233718
Download URL:

NCEI to be determined

Technical Environment


Microsoft Excel Spreadsheet

Data Quality

Completeness Report:


Conceptual Consistency:

Genotypes were scored by two people with the software GeneMapper 4.0. Samples missing genotypes from four or more loci, or having six or more homozygous loci were removed.

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.


Process Steps

Process Step 1

CC ID: 201126

All allele designations were standardized to the 381-population baseline dataset from Fisheries and Oceans Canada (DFO), available at

Child Items

Rubric scores updated every 15m

Rubric Score Type Title
Entity 2005 Chum Bycatch

Catalog Details

Catalog Item ID: 24854
GUID: gov.noaa.nmfs.inport:24854
Metadata Record Created By: Emily A Fergusson
Metadata Record Created: 2015-05-01 20:14+0000
Metadata Record Last Modified By: SysAdmin InPortAdmin
Metadata Record Last Modified: 2023-05-30 18:10+0000
Metadata Record Published: 2016-05-03
Owner Org: AFSC
Metadata Publication Status: Published Externally
Do Not Publish?: N
Metadata Last Review Date: 2016-05-03
Metadata Review Frequency: 1 Year
Metadata Next Review Date: 2017-05-03