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Alaska Fisheries Science Center Metadata Librar... > Resource Ecology and Fisheries Management Divis... > Genetics >

AFSC/REFM: Pacific cod genetics in the Aleutian Islands 2004-2007

Data Set (DS)  |  Alaska Fisheries Science Center (AFSC)
GUID: gov.noaa.nmfs.inport:23101  |  Updated: March 4, 2026  |  Published / External 
Short Citation:
Full Citation Examples
Alaska Fisheries Science Center, 2026: AFSC/REFM: Pacific cod genetics in the Aleutian Islands 2004-2007, https://www.fisheries.noaa.gov/inport/item/23101.

Item Identification

Title: AFSC/REFM: Pacific cod genetics in the Aleutian Islands 2004-2007
Short Name: AFSC/REFM: Pacific cod genetics in the Aleutian Islands 2004-2007
Status: Completed
Publication Date: 2013-10
Abstract:

Landscape genetics of Pacific cod Gadus macrocephalus within the Bering Sea and Aleutian Islands (BSAI) management area of Alaska was examined in samples from nine spawning locations, including one temporal replicate sample, using 17 microsatellite DNA markers. This study examined fine-scale population structure of Pacific cod in the BSAI with the goal of identifying breaks in genetic continuity associated with physical barriers to migration and larval transport. Samples were taken from spawning fish collected from the western Aleutian Islands east to Unimak Pass and as far north as the Pribilof Islands. Overall, this work confirms previous studies, which found that genetic differentiation between samples is proportional to the distance between them, and also resolves population structure on a scale not previously possible. Results indicate that dispersal is not continuous at a fine scale and several distinct genetic groups were identified that correspond to differences in the physical environment of the BSAI. The data provide evidence for limited connectivity among spawning groups; in particular, there is evidence that a barrier exists between the Aleutian Islands and the eastern Bering Sea. In addition, analysis of molecular variance and Monmonier algorithm results suggest that, within the Bering Sea, the Unimak Pass and Pribilof Islands spawning groups may be distinct from each other, and the Wombling analysis indicates that samples west of Amchitka Pass in the western Aleutians may be distinct from those in the eastern Aleutians.
Purpose:

To examine genetic population structure of Pacific cod in the Bering Sea and Aleutian Islands.
Notes:

Loaded by FGDC Metadata Uploader, batch 5325, 02-11-2015 17:28

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

- Taxonomy (FGDC:taxonomy)

- Lineage (FGDC:lineage)

Keywords

Theme Keywords

Thesaurus Keyword
ISO 19115 Topic Category
biota
ISO 19115 Topic Category
oceans
UNCONTROLLED
PARR Exclusion Non-Federal Funding
None genetics
None microsatellites
None population structure

Spatial Keywords

Thesaurus Keyword
UNCONTROLLED
None Aleutian Islands
None Bering Sea

Physical Location

Organization: North Pacific Research Board
City: Anchorage
State/Province: AK
Country: USA

Data Set Information

Data Set Scope Code: Data Set
Maintenance Frequency: None Planned
Data Presentation Form: Table (digital)
Data Set Credit: Samples were collected by fishery observers and Olav Ormseth.

Support Roles

Data Steward

CC ID: 234370
Date Effective From: 2015-10-19
Date Effective To:
Contact (Person): Spies, Ingrid
Address:
Email Address: ingrid.spies@noaa.gov

Distributor

CC ID: 234368
Date Effective From: 2015-10-19
Date Effective To:
Contact (Organization): North Pacific Research Board (NPRB)
Address: 1007 West 3rd Avenue, Suite 100
Anchorage, AK 99501
USA
Phone: 907 644 6700
URL: http://www.nprb.org/index.html

Originator

CC ID: 184547
Date Effective From: 2015-02-11
Date Effective To:
Contact (Person): Spies, Ingrid
Address:
Email Address: ingrid.spies@noaa.gov

Originator

CC ID: 184548
Date Effective From: 2015-02-11
Date Effective To:
Contact (Organization): Alaska Fisheries Science Center (AFSC)
Address: 7600 Sand Point Way N.E., Building 4
Seattle, WA 98115
USA
ROR: https://ror.org/01h7fye62
Email Address: afsc.webmaster@noaa.gov
Phone: (206) 526-4000
Fax: (206) 526-4004
URL: https://www.fisheries.noaa.gov/about/alaska-fisheries-science-center
Business Hours: 0700-1700 Pacific Time

Point of Contact

CC ID: 184546
Date Effective From: 2015-02-11
Date Effective To:
Contact (Person): Spies, Ingrid
Address:
Email Address: ingrid.spies@noaa.gov

Extents

Currentness Reference: Ground Condition

Extent Group 1

Extent Group 1 / Geographic Area 1

CC ID: 184544
W° Bound: 170
E° Bound: -170
N° Bound: 55
S° Bound: 50
Description

Aleutian Islands

Extent Group 1 / Time Frame 1

CC ID: 184543
Time Frame Type: Range
Start: 2004
End: 2007

Access Information

Security Class: Unclassified
Data Access Procedure:

na
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. Applications or inferences derived from the data should be carefully considered for accuracy. Acknowledgement

of NOAA/NMFS/AFSC, 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: 234371
Download URL: http://projects.nprb.org/#metadata/0be47376-91fb-4021-b1a1-e42a4a112f53/project/files
Distributor:

URLs

URL 1

CC ID: 184550
URL: https://workspace.aoos.org/published/file/8acc25db-42a4-4818-bca8-f3fb83b442bd/817_Final%20report.pdf?source=catalog&portalId=92
URL Type:
Online Resource
File Resource Format: PDF

URL 2

CC ID: 184551
URL: https://www.afsc.noaa.gov/metadata-images/REFM/SSMApcod_al_genetics.png
Name: Map
URL Type:
Browse Graphic
Map
File Resource Format: URL
Description:

Specimen collection locations.

Technical Environment

Description:

Excel

Data Quality

Accuracy:

Data quality was evaluated using a double-blind genotyping protocol, where two individuals score the gel image independently. This method was employed on all samples run on the ABI platform (12 loci), and multiple runs of the same sample were compared for reliability on samples run with the MegaBACE genotyping platform. All loci were rerun up to four times when scores were questionable to ensure scoring reliability.
Completeness Report:

Opportunistic collections.
Conceptual Consistency:

See accuracy report.
Quality Control Procedures Employed:

See lineage.

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: no
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:

na
Actual or Planned Long-Term Data Archive Location: Other
If World Data Center or Other, Specify: NPRB
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?:

na

Lineage

Lineage Statement:

View metadata record as uploaded FGDC record.

Child Items

Rubric scores updated every 15m

Rubric Score Type Title
Entity csv file

Catalog Details

Catalog Item ID: 23101
GUID: gov.noaa.nmfs.inport:23101
Metadata Record Created By: Angie Greig
Metadata Record Created: 2015-02-11 17:26+0000
Metadata Record Last Modified By: SysAdmin InPortAdmin
Metadata Record Last Modified: 2026-03-04 19:17+0000
Metadata Record Published: 2016-04-28
Owner Org: AFSC
Metadata Publication Status: Published Externally
Do Not Publish?: N
Metadata Last Review Date: 2016-04-28
Metadata Review Frequency: 1 Year
Metadata Next Review Date: 2017-04-28