Lake Ontario April Prey Fish Bottom Trawl Survey, 1997-2021

This data release includes Lake Ontario prey fish data including species captured, relative abundance, spatial distribution, size structure, and age data from the April or spring prey fish bottom trawl survey, 1997 and 2021. Data from 1997 - 2015 are from U.S. waters of Lake Ontario while data from 2016 - 2021 include both U.S. and Canadian waters of Lake Ontario. Details about the vessel and gear descriptions, sampling protocols, and catch processing protocols can be found in the Process sections of this metadata. Portions of this data release follows the data model of the USGS Great Lakes Science Center Research Vessel Catalog (RVCAT). The trawl data included in this data release are a subset of the larger RVCAT data base. We note the data included at the time of this release were not yet available in the overall RVCAT data release. The RVCAT data can be found here: https://doi.org/10.5066/F75M63X0.

Data and Resources

Field Value
accessLevel public
bureauCode {010:12}
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
datagov_dedupe_retained 20220725124225
identifier USGS:6140e604d34e1449c5d6011a
metadata_type geospatial
modified 20211005
old-spatial {"type": "Polygon", "coordinates": [[[-79.8706, 43.1691], [-79.8706, 44.2900], [ -76.0254, 44.2900], [ -76.0254, 43.1691], [-79.8706, 43.1691]]]}
publisher U.S. Geological Survey
publisher_hierarchy Department of the Interior > U.S. Geological Survey
resource-type Dataset
source_datajson_identifier true
source_hash 8d21ff6334bf20434a8208c3405beae8e7b8157c
source_schema_version 1.1
spatial {"type": "Polygon", "coordinates": [[[-79.8706, 43.1691], [-79.8706, 44.2900], [ -76.0254, 44.2900], [ -76.0254, 43.1691], [-79.8706, 43.1691]]]}
theme {geospatial}
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • alewife
  • amerigeo
  • amerigeoss
  • biota
  • bottom-trawl
  • cisco
  • ckan
  • field-sampling
  • fish
  • freshwater-ecosystems
  • geo
  • geoss
  • inlandwaters
  • lake-ontario
  • national
  • new-york
  • north-america
  • ontario
  • population-dynamics
  • prey-fish
  • rainbow-smelt
  • three-spined-stickleback
  • united-states
  • usgs-6140e604d34e1449c5d6011a
isopen False
license_id notspecified
license_title License not specified
maintainer Brian C Weidel
maintainer_email bweidel@usgs.gov
metadata_created 2025-11-20T16:08:47.807350
metadata_modified 2025-11-20T16:08:47.807354
notes This data release includes Lake Ontario prey fish data including species captured, relative abundance, spatial distribution, size structure, and age data from the April or spring prey fish bottom trawl survey, 1997 and 2021. Data from 1997 - 2015 are from U.S. waters of Lake Ontario while data from 2016 - 2021 include both U.S. and Canadian waters of Lake Ontario. Details about the vessel and gear descriptions, sampling protocols, and catch processing protocols can be found in the Process sections of this metadata. Portions of this data release follows the data model of the USGS Great Lakes Science Center Research Vessel Catalog (RVCAT). The trawl data included in this data release are a subset of the larger RVCAT data base. We note the data included at the time of this release were not yet available in the overall RVCAT data release. The RVCAT data can be found here: https://doi.org/10.5066/F75M63X0.
num_resources 2
num_tags 24
title Lake Ontario April Prey Fish Bottom Trawl Survey, 1997-2021