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Short Citation:
Alaska Fisheries Science Center, 2024: AFSC/REFM: Pacific cod Localized Depletion Study,

Item Identification

Title: AFSC/REFM: Pacific cod Localized Depletion Study
Short Name: AFSC/REFM: Pacific cod Localized Depletion Study
Status: Completed
Publication Date: 2016

Data from Localized Depletion study for Pacific cod 2001-2005. Study was conducted using cod pot gear to measure localized abundance of Pacific cod inside and outside of a trawl exclusion zone in the southeast Bering Sea, both before and after the intensive winter season cod trawl fishery. Data includes early feasibility and gear trials as well as before and after data from each of three years of the experiment. Pot gear was fished in 40 fixed stations in two adjacent areas, one of which was subject to heavy trawling and one within a trawl exclusion zone. Average of three or more pot catches at each station for each time period (before/after) was computed, the variable for final analysis was the change in catch at each station between the two periods. There are three main data tables. Cruise data identifies the dates, vessels, and personnel for each charter. Haul data includes information on location, date, soak time, and identifier for each pot launched, while Catch data includes numbers and weight of cod and bycatch by pot. Assorted small tables define categories for descriptive variables in main tables. Length and maturity data were collected on a random subset of cod catch. Some CTD profiles and oceanographic data were also collected.


Goals: 1) Development of research pot fishing gear for studying Pacific cod. 2) Evaluation of the effect of commercial fishing on local abundance of Pacific cod in the vicinity of a Steller Sea Lion haulout, to determine if intense local fishing reduces prey availability for the endangered mammal.


Loaded by FGDC Metadata Uploader, batch 8691, 04-28-2016 16:11

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

- Taxonomy (FGDC:taxonomy)

Supplemental Information:

2001 - 2003 Feasibility and gear development. 2003 - 2005 LD Experiment


Theme Keywords

Thesaurus Keyword
ISO 19115 Topic Category
ISO 19115 Topic Category
None effects of fishing
None local abundance
None localized depletion
None pot gear

Spatial Keywords

Thesaurus Keyword
None Bering Sea
None Unimak Pass

Physical Location

Organization: Alaska Fisheries Science Center
City: Seattle
State/Province: WA
Country: USA

Data Set Information

Data Set Scope Code: Data Set
Maintenance Frequency: None Planned
Data Presentation Form: Table (digital)
Data Set Credit: Funding: National Marine Fisheries Service, Stellar Sea Lion Research

Support Roles

Data Steward

CC ID: 263747
Date Effective From: 2015
Date Effective To:
Contact (Person): Conners, Liz
Email Address:


CC ID: 322053
Date Effective From: 2016-04-28
Date Effective To:
Contact (Organization): NESDIS National Oceanographic Data Center (NESDIS-NODC)
Address: 1315 East-West Highway
Silver Spring, MD 20902
Phone: 301-713-3277

Metadata Contact

CC ID: 322051
Date Effective From: 2016-04-28
Date Effective To:
Contact (Person): MC, Metadata Coordinators
Email Address:


CC ID: 322055
Date Effective From: 2016-04-28
Date Effective To:
Contact (Organization): Alaska Fisheries Science Center (AFSC)
Address: 7600 Sand Point Way N.E., Building 4
Seattle, WA 98115
Email Address:
Phone: (206) 526-4000
Fax: (206) 526-4004
Business Hours: 0700-1700 Pacific Time


CC ID: 322054
Date Effective From: 2016-04-28
Date Effective To:
Contact (Organization): Alaska Fisheries Science Center (AFSC)
Address: 7600 Sand Point Way N.E., Building 4
Seattle, WA 98115
Email Address:
Phone: (206) 526-4000
Fax: (206) 526-4004
Business Hours: 0700-1700 Pacific Time

Point of Contact

CC ID: 322052
Date Effective From: 2016-04-28
Date Effective To:
Contact (Person): Conners, Liz
Email Address:


Currentness Reference: Ground Condition

Extent Group 1

Extent Group 1 / Geographic Area 1

CC ID: 322050
W° Bound: -165.5
E° Bound: -165
N° Bound: 54.8
S° Bound: 54.5

Southeast Bering Sea just north of Unimak Pass, off Cape Sarichef on the northwestern end of Unimak Island

Extent Group 1 / Time Frame 1

CC ID: 322049
Time Frame Type: Range
Start: 2001
End: 2005

Access Information

Security Class: Unclassified
Data Access Procedure:


Data Access Constraints:

For scientific, management, and regulation compliance purposes, particular business or proprietary information held by NMFS is considered confidential under several authorities,

including the Magnuson-Stevens Fishery Conservation and Management Act; as amended, Public Law 109-479; 16 U.S.C. Sec.1853,

and the Freedom of Information Act, 5 U.S.C. Sec. 552. herefore, unprocessed (raw) business or

proprietary information can be shared only with authorized persons; however aggregated forms of the data are generally available.

Data Use Constraints:

The user must adhere to restrictions placed on publication of data by the Magnuson-Stevens Act as amended in 2006.

Distribution Information

Distribution 1

CC ID: 322057
Download URL:



CC ID: 322056
URL Type:
Online Resource
File Resource Format: PNG


CC ID: 322058
URL Type:
Browse Graphic
research area
File Resource Format: url

research area

Technical Environment



Data Quality

Completeness Report:

Not applicable.

Conceptual Consistency:

Catch data entered and proofed while at sea; binders hold raw datasheets and printouts of proofed data for each cruise day. All raw data files from wheelhouse, polycorder, etc. copied to central data computer and checked at sea, with daily backup. Polycorder downloaded and checked before data deleted. Haul, catch, and length data imported into spreadsheet format and checked for completeness. Post-cruise all data copied to network; spreadsheet files organized and subjected to preliminary analysis and QC. Spreadsheets from different cruises combined into master spreadsheet and Access database; some descriptive fields added.

Quality Control Procedures Employed:

See dataqual and method in uploaded FGDC view.

Data Management

Have Resources for Management of these Data Been Identified?: No
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: na
Approximate Delay Between Data Collection and Dissemination: na
If Delay is Longer than Latency of Automated Processing, Indicate Under What Authority Data Access is Delayed:


Actual or Planned Long-Term Data Archive Location: To Be Determined
If To Be Determined, Unable to Archive, or No Archiving Intended, Explain:

Archival site needed for confidential data.

Approximate Delay Between Data Collection and Archiving: na
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 Statement:

See method in uploaded FGDC view.

Process Steps

Process Step 1

CC ID: 322060


Child Items

Rubric scores updated every 15m

Rubric Score Type Title
Entity dataCRUISE
Entity dataCodCATCH
Entity dataLAUNCH
Entity dataOtherCatch
Entity dataSpecimens

Catalog Details

Catalog Item ID: 24167
GUID: gov.noaa.nmfs.inport:24167
Metadata Record Created By: Angie Greig
Metadata Record Created: 2015-03-24 14:22+0000
Metadata Record Last Modified By: SysAdmin InPortAdmin
Metadata Record Last Modified: 2024-01-15 12:08+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