Slide Menu
Jump to Section...
Account Creation Issues: We have received reports of issues with creating new user accounts and linking accounts to CAM, and are currently investigating the root cause. In the meantime: - If you're experiencing errors creating new users, please use the "Quick Add" feature instead (click the "Quick Add" button on the Manage Users page). - If you're experiencing errors linking CAM accoun...
View All
Search Help Show/Hide Menu
Completion Rubric
66%
23 / 35
View Report
Alaska Fisheries Science Center Metadata Librar... > Auke Bay Laboratories >

AFSC/ABL: Lynn Canal Echo-Integrated Trawl Surveys, 2001-2004

Data Set (DS)  |  Alaska Fisheries Science Center (AFSC)
GUID: gov.noaa.nmfs.inport:27709  |  Updated: May 15, 2025  |  Published / External 
Short Citation:
Full Citation Examples
Alaska Fisheries Science Center, 2026: AFSC/ABL: Lynn Canal Echo-Integrated Trawl Surveys, 2001-2004, https://www.fisheries.noaa.gov/inport/item/27709.

Item Identification

Title: AFSC/ABL: Lynn Canal Echo-Integrated Trawl Surveys, 2001-2004
Short Name: AFSC/ABL: Lynn Canal Echo-Integrated Trawl Surveys, 2001-2004
Status: Completed
Publication Date: Unknown
Abstract:

The acoustic trawl database for Lynn Canals echo-trawl survey was conducted from 2001 to 2004 throughout southern Lynn Canal in southeast Alaska. Acoustic surveys were conducted one day per month and trawl surveys were conducted every 3 months to verify acoustic signals and collect biological data. This study was conducted to study the relationship between Steller sea lions (Eumetopias jubatus) and their prey. Additional acoustic surveys were conducted throughout the winter of 2004 to 2005 on 6 consecutive days once a month in order to study forage fish hots spots. Acoustic equipment were calibrated before every trawl survey. Acoustic data were analyzed by the same qualified acoustician throughout the surveys duration with calibrations entered into the analytical software after each calibration. Trawls were used to identify the fish species associated with a specific acoustic signal and to get length weight data per species. Trawl data were also used to enumerate and identify all nekton found within the study area and to generate length frequencies, species composition and abundance by species and season. The acoustic data was use to generate biomass estimates for Pacific herring and walleye pollock. Longlines were deployed to better identify and enumerate the benthic species not usually caught in pelagic trawls.
Purpose:

This dataset contains the data from the echo-integrated trawl surveys from 2001 to 2004.
Notes:

Loaded by FGDC Metadata Uploader, batch 7179, 10-05-2015 18:35

Keywords

Theme Keywords

Thesaurus Keyword
ISO 19115 Topic Category
biota
UNCONTROLLED
ITIS herring
ITIS walleye pollock
None ecology
None forage fish
None seasonality

Spatial Keywords

Thesaurus Keyword
UNCONTROLLED
Geographic Names Information System Alaska

Physical Location

Organization: Auke Bay Laboratories
City: Juneau
State/Province: AK
Country: US

Data Set Information

Data Set Scope Code: Data Set
Maintenance Frequency: None Planned
Data Presentation Form: Image (digital)
Distribution Liability:

The user is responsible for the results of any application of this data for other than its intended purpose.

Support Roles

Data Steward

CC ID: 229019
Date Effective From: 2015-10-01
Date Effective To:
Contact (Person): Csepp, Dave
Address:
Email Address: dave.csepp@noaa.gov

Distributor

CC ID: 229023
Date Effective From: 2015-10-01
Date Effective To:
Contact (Person): Csepp, Dave
Address:
Email Address: dave.csepp@noaa.gov

Originator

CC ID: 228852
Date Effective From: 2015-10-05
Date Effective To:
Contact (Person): Csepp, Dave
Address:
Email Address: dave.csepp@noaa.gov

Point of Contact

CC ID: 229022
Date Effective From: 2015-10-02
Date Effective To:
Contact (Person): Csepp, Dave
Address:
Email Address: dave.csepp@noaa.gov

Extents

Currentness Reference: Ground Condition

Extent Group 1

Extent Group 1 / Geographic Area 1

CC ID: 228850
W° Bound: -135.4189
E° Bound: -134.7697
N° Bound: 58.5819
S° Bound: 58.4156
Description

Alaska, Southeast Alaska, Lynn Canal, Favorite Channel

Extent Group 1 / Time Frame 1

CC ID: 228849
Time Frame Type: Range
Start: 2001-06
End: 2004-05

Access Information

Security Class: Unclassified
Data Access Procedure:

N/A
Data Access Constraints:

There are no legal restrictions on access to the data. They reside in public domain and can be freely distributed.
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.

Distribution Information

Distribution 1

CC ID: 233694
Download URL: https://www.ncei.noaa.gov/
Distributor:
Description:

NCEI to be determined

Technical Environment

Description:

Microsoft Excel Spreadsheet

Data Quality

Completeness Report:

None
Conceptual Consistency:

Tests were regularly done on acoustic gear as cited in publication with calibrations and constant noise and signal evaluation throughout all surveys. Data was regularly checked during data entry, while making spreadsheets, master sheets, sorting, analyzing data and making plots and tables. When everything was done we rechecked everything for consistency, completeness and accuracy.
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

CC ID: 228856
Description:

See publications for methodology

Catalog Details

Catalog Item ID: 27709
GUID: gov.noaa.nmfs.inport:27709
Metadata Record Created By: Emily A Fergusson
Metadata Record Created: 2015-10-05 18:34+0000
Metadata Record Last Modified By: SysAdmin InPortAdmin
Metadata Record Last Modified: 2025-05-15 19:15+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