Prey Information (Hake Diet Analysis)

This project examines the stomach contents of Pacific hake (Merluccius productus) for identification, number, weight and volume of prey species. Diet information about hake is important for their contributions to the California Current Ecosystem as both predator and prey. Therefore, changes and trends in hake diet can possibility be indicative of changes in the system as a whole. Scientists from the Northwest Fisheries Science Center (NWFSC) extract stomachs at sea and preserve them in formalin. The contents are examined and recorded for use in later analysis. This project is ongoing as a component of the Integrated Acoustic and Trawl (IAT) Survey conducted biennially by the NWFSC, United States National Oceanic and Atmospheric Administration (NOAA), and the Pacific Biological Station (PBS), Department of Fisheries and Oceans (DFO), Canada. Stomachs are also taken as a regular part of the NWFSC West Coast Groundfish Survey. Information on the number, weight and volume of the prey content

Data and Resources

Field Value
accessLevel public
bureauCode {006:48}
catalog_@context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
catalog_describedBy https://project-open-data.cio.gov/v1.1/schema/catalog.json
identifier gov.noaa.nmfs.inport:18473
language {en-US}
modified 2015-07-30T13:27:08.186000-04:00
old-spatial {"type": "Polygon", "coordinates": [[[-124.224243164, 44.622924], [-124.047214, 44.622924], [-124.047214, 45.623873029], [-124.224243164, 45.623873029], [-124.224243164, 44.622924]]]}
programCode {006:056}
publisher (Point of Contact)
resource-type Dataset
source_datajson_identifier true
source_hash de14fda9755d60388fe9fe1251059b78a57c7902
source_schema_version 1.1
spatial {"type": "Polygon", "coordinates": [[[-124.224243164, 44.622924], [-124.047214, 44.622924], [-124.047214, 45.623873029], [-124.224243164, 45.623873029], [-124.224243164, 44.622924]]]}
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • amerigeo
  • amerigeoss
  • california
  • ckan
  • doc-noaa-nmfs-nwfsc-northwest-fisheries-science-center
  • ecoregion
  • fish-diet
  • food-web
  • fram-fishery-resource-analysis-and-monitoring-division
  • geo
  • geoss
  • gut-content
  • national
  • national-marine-fisheries-service
  • newport
  • noaa-u-s-department-of-commerce
  • north-america
  • oregon
  • pacific-hake
  • stomach-content-analysis
  • trophic-interactions
  • united-states
  • vancouver-coast-and-shelf
  • washington
  • west-coast
  • widow-rockfish
isopen False
license_id notspecified
license_title License not specified
maintainer Billings, Alicia A
maintainer_email Alicia.Billings@noaa.gov
metadata_created 2025-11-20T11:39:09.784483
metadata_modified 2025-11-20T11:39:09.784487
notes This project examines the stomach contents of Pacific hake (Merluccius productus) for identification, number, weight and volume of prey species. Diet information about hake is important for their contributions to the California Current Ecosystem as both predator and prey. Therefore, changes and trends in hake diet can possibility be indicative of changes in the system as a whole. Scientists from the Northwest Fisheries Science Center (NWFSC) extract stomachs at sea and preserve them in formalin. The contents are examined and recorded for use in later analysis. This project is ongoing as a component of the Integrated Acoustic and Trawl (IAT) Survey conducted biennially by the NWFSC, United States National Oceanic and Atmospheric Administration (NOAA), and the Pacific Biological Station (PBS), Department of Fisheries and Oceans (DFO), Canada. Stomachs are also taken as a regular part of the NWFSC West Coast Groundfish Survey. Information on the number, weight and volume of the prey content
num_resources 2
num_tags 26
title Prey Information (Hake Diet Analysis)