AFSC/RACE/MACE: Results of 2010 Acoustic-trawl survey of the Shumagin Islands, Sanak Trough, Kenai Peninsula bays and Prince-william sound dy1001
Data Set (DS) | Alaska Fisheries Science Center (AFSC)GUID: gov.noaa.nmfs.inport:28337 | Updated: August 9, 2022 | Published / External
Summary
Short Citation
Alaska Fisheries Science Center, 2024: AFSC/RACE/MACE: Results of 2010 Acoustic-trawl survey of the Shumagin Islands, Sanak Trough, Kenai Peninsula bays and Prince-william sound dy1001, https://www.fisheries.noaa.gov/inport/item/28337.
Full Citation Examples
Scientists from the Midwater Assessment and Conservation Engineering (MACE) Program of the Alaska Fisheries Science Center's (AFSC) Resource Assessment and Conservation Engineering (RACE) Division routinely conduct acoustic-trawl (AT) stock assessment surveys in the Gulf of Alaska (GOA) during late winter and early spring to estimate the distribution and abundance of walleye pollock (Theragra chalcogramma). Historically, most of these efforts have been focused on the Shelikof Strait area, which has been surveyed annually since 1980, except in 1982 and 1999. The Shumagin Islands area has also been surveyed annually since 2005 with prior surveys in 1994-1996 and 2001-2003. Additionally, the GOA continental shelf break east of Chirikof Island to Barnabas Trough has been surveyed annually since 2002. In 2010, survey activities were expanded to include Morzhovoi Bay, Pavlof Bay, the bays along the southern coast of the Kenai Peninsula, and Prince William Sound. This report presents the distribution and abundance of walleye pollock for all AT surveys conducted in the GOA during February and March 2010 along with acoustic system calibration and physical oceanographic results.
Distribution Information
None.
User must read and fully comprehend the metadata prior to use. User must acknowledge the Originator when using the data set as a source. User must share data products developed using the source data set with the Originator. Data should not be used beyond the limits of the source scale.
Child Items
No Child Items for this record.
Contact Information
Point of Contact
Mike Guttormsen
mike.guttormsen@noaa.gov
Metadata Contact
Abigail McCarthy
abigail.mccarthy@noaa.gov
Extents
Gulf of Alaska: http://www.marineregions.org/gazetteer.php?p=details&id=4312
2010 - 2011
Item Identification
Title: | AFSC/RACE/MACE: Results of 2010 Acoustic-trawl survey of the Shumagin Islands, Sanak Trough, Kenai Peninsula bays and Prince-william sound dy1001 |
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Short Name: | 2010 Acoustic-trawl survey of the Shumagin Islands, Sanak Trough, Kenai Peninsula bays and Prince-william sound dy1001 |
Status: | Completed |
Publication Date: | 2011 |
Abstract: |
Scientists from the Midwater Assessment and Conservation Engineering (MACE) Program of the Alaska Fisheries Science Center's (AFSC) Resource Assessment and Conservation Engineering (RACE) Division routinely conduct acoustic-trawl (AT) stock assessment surveys in the Gulf of Alaska (GOA) during late winter and early spring to estimate the distribution and abundance of walleye pollock (Theragra chalcogramma). Historically, most of these efforts have been focused on the Shelikof Strait area, which has been surveyed annually since 1980, except in 1982 and 1999. The Shumagin Islands area has also been surveyed annually since 2005 with prior surveys in 1994-1996 and 2001-2003. Additionally, the GOA continental shelf break east of Chirikof Island to Barnabas Trough has been surveyed annually since 2002. In 2010, survey activities were expanded to include Morzhovoi Bay, Pavlof Bay, the bays along the southern coast of the Kenai Peninsula, and Prince William Sound. This report presents the distribution and abundance of walleye pollock for all AT surveys conducted in the GOA during February and March 2010 along with acoustic system calibration and physical oceanographic results. |
Purpose: |
The Shumagins region is a critical spawning ground for walleye pollock and annual surveys of pollock age structure and biomass are used to inform GOA pollock stock assesment models. In particular, there is a strong correlation between the abundance of age-1 pollock in the Shumagin Islands survey and year-class strength for the GOA region. The survey’s primary objective was to collect acoustic data and trawl information to estimate midwater abundance and distribution of walleye pollock (Gadus chalcogrammus) in the Gulf of Alaska (GOA) Shumagins Region during late winter and early spring. Acoustic data were collected using five split-beam transducers (18, 38, 70, 120, and 200 kHz) and Simrad ER60 scientific echo sounders. Midwater and near-bottom acoustic backscatter was sampled using an Aleutian Wing 30/26 Trawl (AWT) and a poly Nor’eastern bottom trawl (PNE) with roller gear. This long-running survey has consistently provided data on the pollock population in the western GOA during winter and spring months. |
Other Citation Details: |
GUTTORMSEN, M. A., and D. JONES. 2010. Results of the acoustic-trawl surveys of walleye pollock (Theragra chalcogramma) in the Gulf of Alaska, February-March 2010 (DY2010-01 and DY2010-02). AFSC Processed Rep. 2010-05, 85 p. Alaska Fish. Sci. Cent., NOAA, Natl. Mar. Fish. Serv., 7600 Sand Point Way NE, Seattle WA 98115. |
Physical Location
Organization: | Alaska Fisheries Science Center |
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City: | Seattle |
State/Province: | WA |
Country: | USA |
Data Set Information
Data Set Scope Code: | Data Set |
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Data Set Type: | Binary |
Maintenance Frequency: | As Needed |
Data Presentation Form: | Simrad RAW file format |
Support Roles
Data Steward
Date Effective From: | 2015-10-29 |
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Date Effective To: | |
Contact (Person): | Towler, Rick |
Email Address: | rick.towler@noaa.gov |
Distributor
Date Effective From: | 2015-10-29 |
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Date Effective To: | |
Contact (Person): | Anderson, Charles |
Address: |
325 Broadway, E/GC3 Boulder, CO 33149 |
Email Address: | charles.anderson@noaa.gov |
Phone: | 303-497-4742 |
Metadata Contact
Date Effective From: | 2015-10-29 |
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Date Effective To: | |
Contact (Person): | McCarthy, Abigail |
Email Address: | abigail.mccarthy@noaa.gov |
Point of Contact
Date Effective From: | 2015-10-29 |
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Date Effective To: | |
Contact (Person): | Guttormsen, Mike |
Email Address: | mike.guttormsen@noaa.gov |
Extents
Extent Group 1
Extent Group 1 / Geographic Area 1
Description |
Gulf of Alaska: http://www.marineregions.org/gazetteer.php?p=details&id=4312 |
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Extent Group 1 / Time Frame 1
Time Frame Type: | Range |
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Start: | 2010 |
End: | 2011 |
Access Information
Security Class: | Unclassified |
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Data Access Procedure: |
Go to https://www.ngdc.noaa.gov/mgg/wcd/ or email Anderson, Charles (charles.anderson@noaa.gov) |
Data Access Constraints: |
None. |
Data Use Constraints: |
User must read and fully comprehend the metadata prior to use. User must acknowledge the Originator when using the data set as a source. User must share data products developed using the source data set with the Originator. Data should not be used beyond the limits of the source scale. |
Distribution Information
Distribution 1
Download URL: | http://doi.org/10.7289/V58G8HN5 |
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Distributor: |
Distribution 2
Download URL: | http://doi.org/10.7289/V5C82772 |
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Distributor: |
Distribution 3
Download URL: | https://www.ngdc.noaa.gov/mgg/wcd/ |
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Distributor: |
URLs
URL 1
URL: | http://www.afsc.noaa.gov/Publications/ProcRpt/PR2010-05.pdf |
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URL Type: |
Online Resource
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Data Quality
Quality Control Procedures Employed: |
These data were collected in accordance NOAA protocols for fisheries acoustics surveys and related sampling (Alaska Fisheries Science Center), 23 p. Prepared by Midwater Assessment and Conservation Engineering Program, Alaska Fish. Sci. Center, Natl. Mar. Fish. Serv., NOAA. Available online: http://www.afsc.noaa.gov/RACE/midwater/AFSC%20AT%20Survey%20Protocols_Feb%202013.pdf |
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Data Management
Have Resources for Management of these Data Been Identified?: | No |
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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 |
Approximate Delay Between Data Collection and Dissemination: | 180 |
Actual or Planned Long-Term Data Archive Location: | NCEI-CO |
Approximate Delay Between Data Collection and Archiving: | 180 |
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: |
Acoustic data were recorded at the five split-beam frequencies using ER60 software and, as a backup, acoustic telegram data were logged with Myriax EchoLog 500 software. Acoustic measurements were collected from 16 m below the sea surface to within 0.5 m of the sounder-detected bottom or a maximum of 1,000 m in deep water. Data were analyzed using Myriax Echoview post-processing software. See National Marine Fisheries Service (NMFS) 2013. NOAA protocols for fisheries acoustics surveys and related sampling (Alaska Fisheries Science Center), 23 p. Prepared by Midwater Assessment and Conservation Engineering Program, Alaska Fish. Sci. Center, Natl. Mar. Fish. Serv., NOAA. Available online: http://www.afsc.noaa.gov/RACE/midwater/AFSC%20AT%20Survey%20Protocols_Feb%202013.pdf |
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Catalog Details
Catalog Item ID: | 28337 |
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GUID: | gov.noaa.nmfs.inport:28337 |
Metadata Record Created By: | Abigail McCarthy |
Metadata Record Created: | 2015-10-29 13:46+0000 |
Metadata Record Last Modified By: | SysAdmin InPortAdmin |
Metadata Record Last Modified: | 2022-08-09 17:11+0000 |
Metadata Record Published: | 2016-05-18 |
Owner Org: | AFSC |
Metadata Publication Status: | Published Externally |
Do Not Publish?: | N |
Metadata Last Review Date: | 2016-05-18 |
Metadata Review Frequency: | 1 Year |
Metadata Next Review Date: | 2017-05-18 |