Short Citation:
Northwest Fisheries Science Center, 2021: Oceanographic data - Integrated acoustic and trawl survey of Pacific hake off the Pacific Coast, https://www.fisheries.noaa.gov/inport/item/18471.

Item Identification

Title: Oceanographic data - Integrated acoustic and trawl survey of Pacific hake off the Pacific Coast
Short Name: Oceanographic data (Integrated acoustic and trawl survey of Pacific hake off the Pacific Coast)
Status: Completed
Creation Date: 2001-06-01
Publication Date: 2019-06-09
Abstract:

Integrated acoustic and trawl surveys are used to assess the distribution, biomass, and biology of Pacific hake along the Pacific coasts of the United States and Canada. Scientists from the Northwest Fisheries Science Center (NWFSC) and Department of Fisheries and Oceans-Canada are responsible for conducting the survey. The survey consists of a series of transects that are oriented generally east-west, and are spaced at a nominal 10-nautical mile interval. Sea depth at the nearshore end of individual transects is typically 50 m; offshore extents are typically at a depth of 1,500 m. Geographical coverage extends from near Morro Bay, CA north to Dixon Entrance. Acoustic data are collected during daylight hours with a Simrad EK60 scientific echo sounder coupled with the ER60 software system. Trawl samples from pelagic and bottom trawls are used to classify the observed backscatter layers to species and size composition and to collect specimens of Pacific hake and other organisms. Analysis of acoustic data involves identification and delineation of backscatter layers that are attributed to Pacific hake. The biomass estimate and length-at-age composition of Pacific hake generated from this survey are used in analysis and management of the stock. This survey is conducted on a biennial basis. There is a firm deadline for producing the biomass estimate in the middle of the December following the survey.

Oceanographic data collected from CTDs, XBTs, SBEs, and the ADCP.

Purpose:

Raw/field data

Notes:

Loaded by batch 4403, 02-19-2013 18:41

Supplemental Information:

Subject to Public Access to Research Results (PARR): Yes

Keywords

Theme Keywords

Thesaurus Keyword
UNCONTROLLED
None acoustic survey
None acoustics
None Bell M. Shimada
None echo integration-trawl survey
None hake
None IATS
None Merluccius productus
None Pacific hake
None Pacific whiting

Spatial Keywords

Thesaurus Keyword
UNCONTROLLED
None U.S. and Canadian waters off the Pacific coast

Instrument Keywords

Thesaurus Keyword
UNCONTROLLED
None and Depth
None Bathythermograph
None CTD
None Current Meter - Acoustic Current Meter - Acoustic Doppler Current Meter
None Sonde and Probe - Conductivity
None Temperature
None Underway Data Collection Instrument

Physical Location

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

Data Set Information

Data Set Scope Code: Data Set
Data Set Type: Other
Data Presentation Form: Other

Support Roles

Data Steward

CC ID: 855207
Date Effective From: 2015-01-01
Date Effective To:
Contact (Person): Parker-Stetter, Sandy
Address: 2725 Montlake Boulevard East
Seattle, WA 98112
USA
Email Address: sandy.parker-stetter@noaa.gov

Distributor

CC ID: 855208
Date Effective From: 2015-01-01
Date Effective To:
Contact (Organization): Northwest Fisheries Science Center (NWFSC)
Address: 2725 Montlake Boulevard East
Seattle, WA 98112
USA
Email Address: nmfs.nwfsc.metadata@noaa.gov
Phone: 206-860-3200
URL: NWFSC Home

Metadata Contact

CC ID: 855206
Date Effective From: 2015-01-01
Date Effective To:
Contact (Organization): Northwest Fisheries Science Center (NWFSC)
Address: 2725 Montlake Boulevard East
Seattle, WA 98112
USA
Email Address: nmfs.nwfsc.metadata@noaa.gov
Phone: 206-860-3200
URL: NWFSC Home

Originator

CC ID: 855210
Date Effective From: 2015-01-01
Date Effective To:
Contact (Person): Parker-Stetter, Sandy
Address: 2725 Montlake Boulevard East
Seattle, WA 98112
USA
Email Address: sandy.parker-stetter@noaa.gov

Point of Contact

CC ID: 855209
Date Effective From: 2015-01-01
Date Effective To:
Contact (Person): Parker-Stetter, Sandy
Address: 2725 Montlake Boulevard East
Seattle, WA 98112
USA
Email Address: sandy.parker-stetter@noaa.gov

Extents

Extent Group 1

Extent Group 1 / Geographic Area 1

CC ID: 855216
W° Bound: -132.3937
E° Bound: -123.3793
N° Bound: 50.4752
S° Bound: 40.3514
Description

U.S. and Canadian waters off the Pacific coast: West Coast of U.S. and Canada

Extent Group 1 / Time Frame 1

CC ID: 855215
Time Frame Type: Continuing
Start: 2001-01-01

Access Information

Security Class: Unclassified
Data Access Procedure:

At this time, contact the Data Manager for information on obtaining access to this data set. In the near future, the NWFSC will strive to provide all non-sensitive data resources as a web service in order to meet the NOAA Data Access Policy Directive (https://nosc.noaa.gov/EDMC/PD.DA.php).

Data Access Constraints:

Data access limited based on fileshare permissions

Distribution Information

Distribution 1

CC ID: 855211
Start Date: 2019-06-09
End Date: Present
Download URL: https://www.nwfsc.noaa.gov/data/api/v1/source/acoustics.oceanographic_ctd_fact/selection.csv
Distributor: Northwest Fisheries Science Center (NWFSC) (2015-01-01 - Present)
File Name: Oceanagraphic Data (CTD) (RESTful)
Description:

Integrated acoustic and trawl survey of Pacific hake off the Pacific Coast - CTD

Distribution 2

CC ID: 855212
Start Date: 2019-06-09
End Date: Present
Download URL: https://www.nwfsc.noaa.gov/data/api/v1/source/acoustics.oceanographic_uctd_fact/selection.csv
Distributor: Northwest Fisheries Science Center (NWFSC) (2015-01-01 - Present)
File Name: Oceanagraphic Data (UCTD) (RESTful)
Description:

Integrated acoustic and trawl survey of Pacific hake off the Pacific Coast - UCTD

URLs

URL 1

CC ID: 855213
URL: https://www.webapps.nwfsc.noaa.gov/apex/parrdata/inventory/datasets/dataset/3480
Name: Oceanographic data
URL Type:
Online Resource
File Resource Format: Web site
Description:

NWFSC Dataset Information page. Oceanographic data collected from CTDs, XBTs, SBEs, and the ADCP

Technical Environment

Description:

Other - raw files

Data Quality

Accuracy:

Low

Quality Control Procedures Employed:

These data were collected and processed in accordance with established protocols and best practices under the direction of the project’s Principal Investigator. Contact the dataset Data Manager in section 3 for full QA/QC methodology.

Data Management

Have Resources for Management of these Data Been Identified?: No
Approximate Percentage of Budget for these Data Devoted to Data Management: 0
Do these Data Comply with the Data Access Directive?: No
Is Access to the Data Limited Based on an Approved Waiver?: No
If Distributor (Data Hosting Service) is Needed, Please Indicate: No
Approximate Delay Between Data Collection and Dissemination: 365
If Delay is Longer than Latency of Automated Processing, Indicate Under What Authority Data Access is Delayed:

Data is not currently processed

Actual or Planned Long-Term Data Archive Location: NCEI-MD
Approximate Delay Between Data Collection and Archiving: 365
How Will the Data Be Protected from Accidental or Malicious Modification or Deletion Prior to Receipt by the Archive?:

The Northwest Fisheries Science Center facilitates backup and recovery of all data and IT components which are managed by IT Operations through the capture of static (point-in-time) backup data to physical media. Once data is captured to physical media (every 1-3 days), a duplicate is made and routinely (weekly) transported to an offsite archive facility where it is maintained throughout the data's applicable life-cycle.

Lineage

Lineage Statement:

Sensor data is downloaded from the sensor using the Seabird SeaTerm/SeaSave software. These data were collected and processed in accordance with established protocols and best practices under the direction of the project’s Principal Investigator. Contact the dataset Data Manager for full QA/QC methodology.

Catalog Details

Catalog Item ID: 18471
Metadata Record Created By: Jeffrey W Cowen
Metadata Record Created: 2013-02-19 18:41+0000
Metadata Record Last Modified By: Jeffrey W Cowen
Metadata Record Last Modified: 2019-06-09 23:57+0000
Metadata Record Published: 2019-06-09
Owner Org: NWFSC
Metadata Publication Status: Published Externally
Do Not Publish?: N
Metadata Next Review Date: 2020-06-09