Alternative catch monitoring of Alaskan groundfish (NPRB 1017).
Project (PRJ) | Alaska Fisheries Science Center (AFSC)GUID: gov.noaa.nmfs.inport:18963 | Updated: August 9, 2022 | Published / External
Item Identification
Title: | Alternative catch monitoring of Alaskan groundfish (NPRB 1017). |
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Short Name: | Alternative catch monitoring of Alaskan groundfish. |
Status: | Completed |
Abstract: |
These data arise from a field study of groundfish catch monitoring in Kodiak, AK trawl fisheries. Two monitoring components were included in the study: 1) at-sea sampling methods used by observers to sample species composition of catch and 2) shore-side sampling of delivered catch by observers to validate landings species composition reports. The at-sea portion of the study consisted of a side-by-side comparison (two observers) of a proposed new sampling method and the standard sampling method. Observer data were recorded at-sea on paper and transferred to an Oracle database. The shoreside component of this study consisted of observer species composition sampling in plants for later comparison with landings data. The shore-side data were collected by observers in processing plants, recorded on paper and transferred to an Oracle database. Data collection started in April 2011 and continued through August 2011. Third party landings data (NOAA Fisheries, Alaska Regional Office, Sustainable Fisheries Division) that were used in the analysis are stored in an oracle database. Data for both project components (at-sea and shoreside) were collected during normal fishing activities onboard commercial trawl catcher vessels and during normal processing activities in shore-based processing plants. |
Purpose: |
NPRB Research Project: This project investigated whether proposed changes to how observer data are collected on catcher vessels that deliver to shoreside processors result in greater accuracy and precision of catch estimates. The first component of the project compared standard and alternative methods of sampling catch that will be discarded at-sea (bycatch component), while the second component examined the effectiveness of using observer data to verify the accuracy of species identification on industry reports of retained catch (retained catch component). Specifically, the objectives of this project were to test (1) whether alternative at-sea sampling methods are (a) feasible aboard small catcher vessels in Alaska, and (b) result in lower variance in estimates of discard relative to current methods, and (2) test whether the accuracy of retained catch information can be improved through monitoring and verification of species identification by observers. |
Other Citation Details: |
Faunce, C. H., J. A. Cahalan, J. Bonney, R. Swanson. 2013. Alternative catch monitoring of Alaskan groundfish. North Pacific Reseach Board Final Report Project 1017. |
Keywords
Theme Keywords
Thesaurus | Keyword |
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UNCONTROLLED | |
None | Alaska groundfish fisheries |
None | at-sea discards |
None | bycatch |
None | catch estimation |
None | fisheries monitoring |
None | Gulf of Alaska |
None | Kodiak AK |
None | sampling |
None | shoreside processing |
None | species identification |
Temporal Keywords
Thesaurus | Keyword |
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UNCONTROLLED | |
None | 2011 |
Spatial Keywords
Thesaurus | Keyword |
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UNCONTROLLED | |
None | Gulf of Alaska, Alaska |
None | Kodiak, Alaska |
Physical Location
Organization: | Alaska Fisheries Science Center |
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City: | Seattle |
State/Province: | WA |
Country: | USA |
Location Description: |
Fisheries Monitoring and Analysis Division |
Project Information
Project Type: | Project |
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Is Mandated?: | Yes |
Mandated By: | North Pacific Research Board |
Collection Type: | Observer |
Collection Authority: | Other |
Collection Method: | Electronic and Paper |
Support Roles
Metadata Contact
Date Effective From: | 2011-01 |
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Date Effective To: | |
Contact (Person): | Turnbull, Doug |
Address: |
7600 Sandpoint Way NE Seattle, WA 98115 USA |
Email Address: | doug.turnbull@noaa.gov |
Phone: | (206)526-4053 |
Fax: | (206)526-4066 |
Business Hours: | 0700-1630 |
Contact Instructions: |
206 526 4053 |
Originator
Date Effective From: | 2011-01 |
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Date Effective To: | |
Contact (Person): | Faunce, Craig |
Email Address: | craig.faunce@noaa.gov |
Contact Instructions: |
206 526 4188 |
Extents
Currentness Reference: | Publication Date |
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Extent Group 1
Extent Group 1 / Geographic Area 1
W° Bound: | -120 | |
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E° Bound: | -180 | |
N° Bound: | 60 | |
S° Bound: | 42 | |
Description |
GOA Gulf of Alaska |
Extent Group 1 / Time Frame 1
Time Frame Type: | Discrete |
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Start: | 2013-06 |
Access Information
Security Class: | Confidential |
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Data Access Policy: |
Aggredated data may be provided with proper confidentiality doncuments to other researchers |
Data Access Constraints: |
These are confidential data and may not be made available in unaggregated form without proper confidentiality documents on file with FMA Division. |
Acronyms
NPRB | North Pacific Research Board |
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Child Items
Rubric scores updated every 15m
Type | Title |
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Data Set | AFSC/FMA/NPRB Alternative Catch Monitoring Table and Column Definitions |
Catalog Details
Catalog Item ID: | 18963 |
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GUID: | gov.noaa.nmfs.inport:18963 |
Metadata Record Created By: | Jennifer Cahalan |
Metadata Record Created: | 2013-05-03 14:31+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 |