Lake Ontario Prey Fish Trawl Data

This dataset contains Lake Ontario prey fish abundance and distribution statistics, collected every year during spring and fall bottom trawl surveys.

The New York State Department of Environmental Conservation and the U.S. Geological Survey have conducted annual, spring and fall bottom trawl surveys in U.S. waters of Lake Ontario since 1978. In 2015, the Ministry of Natural Resources and Forestry started contributing to this program to include survey coverage in Ontario waters.

The ministry also intermittently conducts mid-water trawling during the summer months on a limited geographic area largely confined to the Eastern Basin.

The survey has varied sample distribution across lake depths and jurisdictions. The south shore of Lake Ontario has well-distributed coverage of depths between 8 and 200 metres. Coverage along the north shore is less uniform due to a lack of suitable trawl sites at shallower depths.

Ministry contact: Natural Resources and Forestry

Additional information

Tags
Geographic coverage
Lake Ontario
Maintainer branch
Fish and Wildlife Services Branch
Last Validated Date
October 11, 2023
Update frequency
Yearly

Lake Ontario Prey Fish Trawl Data

Learn more about accessing data using different formats.

Date range: April 27, 1978 - April 21, 2023

  • WEB
    Lake Ontario April Prey Fish Bottom Trawl Survey, 1978-2023 English

    Last Updated: October 11, 2023

    Explore

Date range: January 1, 1930 - December 31, 2021

  • WEB
    Great Lakes Research Vessel Catch (RVCAT) Database English

    Last Updated: May 2, 2022

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