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Short Citation:
Alaska Fisheries Science Center, 2024: AFSC/ABL: Immature chum salmon allozyme ID of mixed stocks,

Item Identification

Title: AFSC/ABL: Immature chum salmon allozyme ID of mixed stocks
Short Name: AFSC/ABL: Immature chum salmon allozyme ID of mixed stocks
Status: Completed
Publication Date: 2004-12-01

Immature chum salmon were collected by the F/V Northwest Explorer between September 5 and October 8, during the 2002 BASIS survey across the eastern Bering Sea shelf and Aleutian Islands (for details, see Murphy et al. 2003). Approximately 1,600 fish were aged, checked for the presence of hatchery thermal marks, and genotyped for allozyme loci. Scale aging and otolith mark identification were done by the Alaska Department of Fish and Gameb??s Mark, Tag, and Age Laboratory in Juneau, Alaska. Otoliths with thermal marks were compared with voucher specimens to verify hatchery of origin. Heart, liver, and muscle tissues were extracted and then analyzed with protein electrophoresis to identify genotypes for the 20 allozyme loci in the chum salmon coastwide genetic baseline (Kondzela et al. 2002). Genetic data were pooled into one of four geographic areasb??western Aleutian Islands, eastern Aleutian Islands, southeastern Bering Sea shelf, and northeastern Bering Sea shelf. In the eastern and western Aleutian Islands, the catches were large enough to further stratify the data by ocean age. Regional origin estimates were made for each mixture collection using a conditional maximum likelihood method (Pella and Masuda model in SPAM v. 3.7, ADF&G 2001) and the full 356-population genetic baseline. The 95% nonsymmetric confidence intervals were determined from 1000 bootstrap estimates in which the baseline and mixture were re-sampled.


This dataset contains the data used to identify the origin of immature chums almon collected in the Eastern Bering Sea in 2002.


Loaded by batch 3856, 12-18-2012 17:56


Theme Keywords

Thesaurus Keyword
ISO 19115 Topic Category
ITIS Chum salmon
ITIS Oncorhynchus keta
None genetic stock identification
None otolith thermal marks

Spatial Keywords

Thesaurus Keyword
Geographic Names Information System Alaska
Geographic Names Information System Aleutian Islands
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: MS Excel Spreadsheet
Maintenance Frequency: None Planned
Data Presentation Form: Document (digital)

Support Roles

Data Steward

CC ID: 230522
Date Effective From: 2015-10-07
Date Effective To:
Contact (Person): Kondzela, Chris
Email Address:


CC ID: 230520
Date Effective From: 2015-10-07
Date Effective To:
Contact (Person): Kondzela, Chris
Email Address:

Metadata Contact

CC ID: 81528
Date Effective From: 2012-12-18
Date Effective To:
Contact (Person): MC, Metadata Coordinators
Email Address:


CC ID: 81529
Date Effective From: 2012-12-18
Date Effective To:
Contact (Person): Kondzela, Chris
Email Address:

Point of Contact

CC ID: 81530
Date Effective From: 2012-12-18
Date Effective To:
Contact (Person): Kondzela, Chris
Email Address:


Currentness Reference: Ground Condition

Extent Group 1

Extent Group 1 / Geographic Area 1

CC ID: 81527
W° Bound: 172.51
E° Bound: -164.99
N° Bound: 60.19
S° Bound: 51.86

Alaska, Bering Sea and Aleutian Islands

Extent Group 1 / Time Frame 1

CC ID: 81526
Time Frame Type: Discrete
Start: 2002

Access Information

Security Class: Unclassified
Data Access Procedure:


Data Access Constraints:

There are no legal restrictions on access to the data. They reside in public domain and can be freely distributed.

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.

Distribution Information

Distribution 1

CC ID: 233590
Download URL:

NCEI to be determined

Note: Dataset migrated by Dan Woodrich (AFSC data management coordinator) on 12/14/2021. Contact:

Technical Environment


Microsoft Excel Spreadsheet

Data Quality

Completeness Report:


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?: No
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 cite 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 Statement:

Contact the dataset POC for full methodology

Catalog Details

Catalog Item ID: 17238
GUID: gov.noaa.nmfs.inport:17238
Metadata Record Created By: SysAdmin InPortAdmin
Metadata Record Created: 2012-12-18 17:56+0000
Metadata Record Last Modified By: SysAdmin InPortAdmin
Metadata Record Last Modified: 2023-05-30 18:10+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