AFSC/ABL: 2008 Chum Salmon Bycatch Sample Analysis Bering Sea
Data Set (DS) | Alaska Fisheries Science Center (AFSC)GUID: gov.noaa.nmfs.inport:24860 | Updated: May 30, 2023 | Published / External
Summary
Short Citation
Alaska Fisheries Science Center, 2024: AFSC/ABL: 2008 Chum Salmon Bycatch Sample Analysis Bering Sea, https://www.fisheries.noaa.gov/inport/item/24860.
Full Citation Examples
A genetic analysis of samples from the chum salmon (Oncorhynchus keta) bycatch of the 2008 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 2008, genetic samples were collected opportunistically as part of a special project, but 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 629 chum salmon bycatch samples collected throughout the 2008 Bering Sea trawl fishery, North Asian (27%), East Asian (35%), and Eastern Gulf of Alaska/Pacific Northwest (24%) stocks dominated the sample set, with smaller contributions from western Alaska (7%) and Upper/Middle Yukon River (6%) stocks. The estimates for the 2008 chum salmon bycatch sample set were similar to the 2005, 2006, 2007, and 2009 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 with decreasing contribution of Eastern Gulf of Alaska/Pacific Northwest stocks over time, but leaves unanswered whether these changes are due to temporal or spatial differences in the sample set.
Distribution Information
-
NCEI to be determined
For scientific, management, and regulation compliance purposes, all data collected by observers are confidential under the Magnuson-Stevens Fishery Conservation and Management Act [bm1]; 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.
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. The user is responsible for the results of any application of this data for other than its intended purpose.
Controlled Theme Keywords
biota
Child Items
Type | Title |
---|---|
Entity | 2008 Chum Bycatch |
Contact Information
Point of Contact
Chris Kondzela
Chris.Kondzela@noaa.gov
Metadata Contact
Metadata Coordinators MC
AFSC.metadata@noaa.gov
Extents
-179° W,
-164° E,
62° N,
54° S
Alaska, Bering Sea
2008-03-06 - 2008-10-09
Item Identification
Title: | AFSC/ABL: 2008 Chum Salmon Bycatch Sample Analysis Bering Sea |
---|---|
Short Name: | AFSC/ABL: 2008 Chum Salmon Bycatch Sample Analysis Bering Sea |
Status: | Completed |
Publication Date: | 2011 |
Abstract: |
A genetic analysis of samples from the chum salmon (Oncorhynchus keta) bycatch of the 2008 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 2008, genetic samples were collected opportunistically as part of a special project, but 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 629 chum salmon bycatch samples collected throughout the 2008 Bering Sea trawl fishery, North Asian (27%), East Asian (35%), and Eastern Gulf of Alaska/Pacific Northwest (24%) stocks dominated the sample set, with smaller contributions from western Alaska (7%) and Upper/Middle Yukon River (6%) stocks. The estimates for the 2008 chum salmon bycatch sample set were similar to the 2005, 2006, 2007, and 2009 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 with decreasing contribution of Eastern Gulf of Alaska/Pacific Northwest stocks over time, but leaves unanswered whether these changes are due to temporal or spatial differences in the sample set. |
Purpose: |
This dataset contains the data from genetic analyses of fish captured in 2008 in the Bering Sea. |
Notes: |
Loaded by FGDC Metadata Uploader, batch 5996, 05-01-2015 20:26 The following FGDC sections are not currently supported in InPort, but were preserved and will be included in the FGDC export: - Taxonomy (FGDC:taxonomy) |
Keywords
Theme Keywords
Thesaurus | Keyword |
---|---|
ISO 19115 Topic Category |
biota
|
UNCONTROLLED | |
ITIS | chum salmon |
ITIS | Oncorhynchus keta |
None | bycatch |
None | genetic stock identification |
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 |
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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. |
Data Set Credit: | National Marine Fisheries Services Observer Program |
Support Roles
Data Steward
Date Effective From: | 2015-05-01 |
---|---|
Date Effective To: | |
Contact (Person): | Kondzela, Chris |
Email Address: | chris.knodzela@noaa.gov |
Distributor
Date Effective From: | 2015-05-01 |
---|---|
Date Effective To: | |
Contact (Person): | Kondzela, Chris |
Email Address: | Chris.Kondzela@noaa.gov |
Metadata Contact
Date Effective From: | 2015-05-01 |
---|---|
Date Effective To: | |
Contact (Person): | MC, Metadata Coordinators |
Email Address: | AFSC.metadata@noaa.gov |
Originator
Date Effective From: | 2015-05-01 |
---|---|
Date Effective To: | |
Contact (Person): | Kondzela, Chris |
Email Address: | Chris.Kondzela@noaa.gov |
Point of Contact
Date Effective From: | 2015-05-01 |
---|---|
Date Effective To: | |
Contact (Person): | Kondzela, Chris |
Email Address: | Chris.Kondzela@noaa.gov |
Extents
Currentness Reference: | Ground Condition |
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Extent Group 1
Extent Group 1 / Geographic Area 1
W° Bound: | -179 | |
---|---|---|
E° Bound: | -164 | |
N° Bound: | 62 | |
S° Bound: | 54 | |
Description |
Alaska, Bering Sea |
Extent Group 1 / Time Frame 1
Time Frame Type: | Range |
---|---|
Start: | 2008-03-06 |
End: | 2008-10-09 |
Access Information
Security Class: | Unclassified |
---|---|
Data Access Procedure: |
N/A |
Data Access Constraints: |
For scientific, management, and regulation compliance purposes, all data collected by observers are confidential under the Magnuson-Stevens Fishery Conservation and Management Act [bm1]; 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. The user is responsible for the results of any application of this data for other than its intended purpose. |
Distribution Information
Distribution 1
Download URL: | https://www.ncei.noaa.gov/ |
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Distributor: | |
Description: |
NCEI to be determined |
Technical Environment
Description: |
Microsoft Excel Spreadsheet |
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Data Quality
Completeness Report: |
None |
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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. |
Lineage
Process Steps
Process Step 1
Description: |
All allele designations were standardized to the 381-population baseline dataset from Fisheries and Oceans Canada (DFO), available at http://www.pac.dfo-mpo.gc.ca/science/facilities-installations/pbs-sbp/mgl-lgm/data-donnees/index-eng.html |
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Child Items
Rubric scores updated every 15m
Type | Title | |
---|---|---|
Entity | 2008 Chum Bycatch |
Catalog Details
Catalog Item ID: | 24860 |
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GUID: | gov.noaa.nmfs.inport:24860 |
Metadata Record Created By: | Emily A Fergusson |
Metadata Record Created: | 2015-05-01 20:26+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 |