AFSC/RACE/MACE: Pollock Acoustic/Trawl Survey Spawning Annual Shelikof
Alaska Fisheries Science Center
Project
(PRJ)
| ID: 28144
| Published / External
Created: 2015-10-23
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Last Modified: 2024-01-15
Project (PRJ) | ID: 22353
ID: 28144
Project (PRJ)
* Discovery• First Pass
» Metadata Rubric
Item Identification
* » Title | AFSC/RACE/MACE: Pollock Acoustic/Trawl Survey Spawning Annual Shelikof |
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Short Name | Pollock Acoustic/Trawl Survey Spawning Annual Shelikof |
* Status | In Work |
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* » Abstract |
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) Shelikof 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. Both the Chirikof shelf-break region and Marmot Bay are often included in this survey. |
* Purpose |
The survey’s primary objective was to collect acoustic data and trawl information to estimate midwater abundance and distribution of walleye pollock (Gadus chalcogrammus, formerly Theragra chalcogramma) in the Gulf of Alaska (GOA) during late winter and early spring. The Shelikof region is a critical spawning ground for walleye pollock as well as a high-traffic commercial fishing zone, and annual surveys of pollock age structure and biomass are used in GOA pollock stock assessment models. |
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• » Organization | Alaska Fisheries Science Center |
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• » City | Seattle |
• » State/Province | WA |
• Country | USA |
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* » Support Role | Data Steward |
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* » Date Effective From | 2015-10-29 |
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Person | Towler, Rick |
Email Address | rick.towler@noaa.gov |
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* » Support Role | Distributor |
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* » Date Effective From | 2015-10-29 |
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Organization | Alaska Fisheries Science Center (AFSC) |
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7600 Sand Point Way N.E., Building 4 Seattle, WA 98115 USA |
Email Address | afsc.webmaster@noaa.gov |
Phone | (206) 526-4000 |
Fax | (206) 526-4004 |
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URL | https://www.fisheries.noaa.gov/about/alaska-fisheries-science-center |
Business Hours | 0700-1700 Pacific Time |
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* » Support Role | Metadata Contact |
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* » Date Effective From | 2015-10-29 |
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Person | McCarthy, Abigail |
Email Address | abigail.mccarthy@noaa.gov |
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* » Support Role | Point of Contact |
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* » Date Effective From | 2015-10-30 |
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Person | McCarthy, Abigail |
Email Address | abigail.mccarthy@noaa.gov |
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Gulf of Alaska: http://www.marineregions.org/gazetteer.php?p=details&id=4312 |
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* » Start | 1991 |
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https://www.ncei.noaa.gov/ |
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Child Items
Rubric scores updated every 15m
Score | Type | Title |
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60 | Data Set (DS) | AFSC/RACE/MACE: Results of 2008 pollock acoustic trawl survey Shelikof DY0803 |
50 | Data Set (DS) | AFSC/RACE/MACE: Results of 2012 acoustic trawl survey Shelikof DY1203 |
53 | Data Set (DS) | AFSC/RACE/MACE: Results of 2013 Pollock Acoustic/Trawl Survey Shelikof 201303 |
50 | Data Set (DS) | AFSC/RACE/MACE: Results of 2014 Pollock Acoustic-Trawl Survey Shelikof- DY1403 |
50 | Data Set (DS) | AFSC/RACE/MACE: Results of 2015 acoustic trawl survey Shelikof DY1503 |
59 | Data Set (DS) | AFSC/RACE/MACE: Results of 2017 acoustic trawl survey Gulf of Alaska DY1703 |
59 | Data Set (DS) | AFSC/RACE/MACE: Results of 2018 acoustic trawl survey Gulf of Alaska DY1803 |
65 | Data Set (DS) | AFSC/RACE/MACE: Results of 2019 acoustic trawl survey Gulf of Alaska SH1904 |
59 | Data Set (DS) | AFSC/RACE/MACE: Results of 2020 acoustic trawl survey Gulf of Alaska DY2003 |
Related Items
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Catalog Details
Catalog Item ID | 28144 |
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Metadata Record Created By | Abigail McCarthy |
Metadata Record Created | 2015-10-23 13:54+0000 |
Metadata Record Last Modified By | SysAdmin InPortAdmin |
» Metadata Record Last Modified | 2024-01-15 12:08+0000 |
Metadata Record Published | 2016-05-18 |
Owner Org | AFSC |
Metadata Publication Status | Published Externally |
Do Not Publish? | N |
Metadata Workflow State | Published / External |
Metadata Last Review Date | 2016-05-18 |
Metadata Review Frequency | 1 Year |
Metadata Next Review Date | 2017-05-18 |
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