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  4. Lake Ontario Spring Prey Fish Survey
  5. Lake Ontario April Prey Fish Bottom Trawl Survey, 1997-2021

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

Dates

Publication Date
Start Date
1997-04-22
End Date
2020-05-07

Citation

Weidel, B.C., Holden, J.P., Goretzke, J.A., and Connerton, M.J., 2021, Lake Ontario April Prey Fish Bottom Trawl Survey, 1997-2021: U.S. Geological Survey data release, https://doi.org/10.5066/P90DF8KE.

Summary

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 [...]

Contacts

Point of Contact :
Brian C Weidel
Process Contact :
Brian C Weidel
Originator :
Brian C Weidel, Jeremy P Holden, Jessica A Goretzke, Michael J Connerton
Metadata Contact :
Brian C Weidel
Publisher :
U.S. Geological Survey
Distributor :
U.S. Geological Survey - ScienceBase
SDC Data Owner :
Great Lakes Science Center
USGS Mission Area :
Ecosystems

Attached Files

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LakeOntario_AprilPreyFishSurvey_1997_2021_metadata_v2-2.xml
Original FGDC Metadata
View 		21.85 KB application/fgdc+xml
TrawlLengthWeight_SpringPreyfishBottomTrawl.csv 899.52 KB text/csv
HydroacousticDensity_SpringPreyfishBottomTrawl.csv 29.98 KB text/csv
Reference_LifeStage.csv 494 Bytes text/csv
Reference_Species.csv 1.93 KB text/csv
TrawlAlewifeAge_SpringPreyfishBottomTrawl.csv 566.33 KB text/csv
TrawlCatch_SpringPreyfishBottomTrawl.csv 1.77 MB text/csv
TrawlLengthFrequency_SpringPreyfishBottomTrawl.csv 2.51 MB text/csv
MetaDataDictionary_SpringPrefishBottomTrawl_Ontario.csv 11.5 KB text/csv

Purpose

These data are intended for use by Lake Ontario fisheries managers, academia, and the public. The data sets are annually reported on to provide relative abundances of prey fishes, to assess the spatial distributions of prey fishes, and determine the population dynamics of Alewife (Alosa psuedoharengus), which are of interest to fisheries managers that decide on Lake Ontario predator stocking levels. Additional details about the vessel and gear descriptions, sampling protocols, and catch processing protocols can be found in the Process sections of this metadata.

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  • Great Lakes Science Center (GLSC)
  • USGS Data Release Products

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Identifiers

Type Scheme Key
DOI https://www.sciencebase.gov/vocab/category/item/identifier doi:10.5066/P90DF8KE

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