18471 Oceanographic data (Integrated acoustic and trawl survey of Pacific hake off the Pacific Coast) Data Set Published / External 17981 FRAM (Fishery Resource Analysis and Monitoring) Division Project Completed 2001-06-01 2019-06-09 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. Raw/field data Loaded by batch 4403, 02-19-2013 18:41 Subject to Public Access to Research Results (PARR): Yes Theme Bell M. Shimada Theme IATS Theme Merluccius productus Theme Pacific hake Theme Pacific whiting Theme acoustic survey Theme acoustics Theme echo integration-trawl survey Theme hake Spatial U.S. and Canadian waters off the Pacific coast Instrument Bathythermograph Instrument CTD Instrument Current Meter - Acoustic Current Meter - Acoustic Doppler Current Meter Instrument Sonde and Probe - Conductivity Instrument Temperature Instrument Underway Data Collection Instrument Instrument and Depth Northwest Fisheries Science Center Seattle WA USA Data Set Other Other Bathythermograph, CTD, Current Meter - Acoustic Current Meter - Acoustic Doppler Current Meter, Sonde and Probe - Conductivity, Temperature, and Depth, Underway Data Collection Instrument Water based Platforms - Watercraft - Manned Watercraft - Vessel (Ship) Not Applicable Data Steward 2025 Person Pohl, John john.pohl@noaa.gov 2725 Montlake Blvd East, Bldg. SOUTH Seattle WA 98112 Distributor 2015-01-01 Organization Northwest Fisheries Science Center NWFSC nmfs.nwfsc.metadata@noaa.gov https://ror.org/05r7z1k40 2725 Montlake Boulevard East Seattle WA 98112 USA 206-860-3200 https://www.nwfsc.noaa.gov NWFSC Home Online Resource Metadata Contact 2015-01-01 Organization Northwest Fisheries Science Center NWFSC nmfs.nwfsc.metadata@noaa.gov https://ror.org/05r7z1k40 2725 Montlake Boulevard East Seattle WA 98112 USA 206-860-3200 https://www.nwfsc.noaa.gov NWFSC Home Online Resource Originator 2015-01-01 Person Parker-Stetter, Sandy sandy.parker-stetter@noaa.gov 2725 Montlake Boulevard East Seattle WA 98112 USA Point of Contact 2025 Person Pohl, John john.pohl@noaa.gov 2725 Montlake Blvd East, Bldg. SOUTH Seattle WA 98112 -132.3937 -123.3793 50.4752 40.3514 U.S. and Canadian waters off the Pacific coast: West Coast of U.S. and Canada Continuing 2001-01-01 Unclassified 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 limited based on fileshare permissions https://www.nwfsc.noaa.gov/data/api/v1/source/acoustics.oceanographic_ctd_fact/selection.csv 2015-01-01 Organization Northwest Fisheries Science Center https://ror.org/05r7z1k40 Oceanagraphic Data (CTD) (RESTful) Integrated acoustic and trawl survey of Pacific hake off the Pacific Coast - CTD https://www.nwfsc.noaa.gov/data/api/v1/source/acoustics.oceanographic_uctd_fact/selection.csv 2015-01-01 Organization Northwest Fisheries Science Center https://ror.org/05r7z1k40 Oceanagraphic Data (UCTD) (RESTful) Integrated acoustic and trawl survey of Pacific hake off the Pacific Coast - UCTD https://www.webapps.nwfsc.noaa.gov/apex/parrdata/inventory/datasets/dataset/3480 Oceanographic data Online Resource Web site NWFSC Dataset Information page. Oceanographic data collected from CTDs, XBTs, SBEs, and the ADCP Other - raw files Low 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. No 0 No No No 365 Data is not currently processed NCEI-MD 365 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. 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. gov.noaa.nmfs.inport:18471 Jeffrey Cowen 2013-02-19T18:41:49 SysAdmin InPortAdmin 2026-03-04T19:17:17 2019-06-09 Northwest Fisheries Science Center NWFSC 2725 Montlake Boulevard East Seattle WA 98112 USA 206-860-3200 https://www.nwfsc.noaa.gov 1001 Public No No 2019-06-09 1 Year 2020-06-09