Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Skip to content

Great Lakes Research Vessel Operations 1958-2018. (ver. 3.0, April 2019)

Metadata Updated: October 28, 2023

The Great Lakes Research Vessel Operations data release is taken from the Research Vessel Catch (RVCAT) database curated at the Great Lakes Science Center (GLSC). RVCAT has been used as the primary data collection tool aboard the GLSC’s research vessel operations.
Content: The data set has been collected on various vessel operations on all the Great Lakes and select connecting waterways between the years 1958-2018. Data collection begins in early spring and ends in late fall. Each vessel operation was completed for a specific purpose, or target mission, which are enumerated in this data set. In addition to vessel operations data, RVCAT collects trawl and gillnet catch data, sample information of fish species caught, as well as effort applied. The data set also contains data on benthos samples collected. Although not included in this data release, the GLSC collects or collected zebra mussel, hydroacoustics, ichthyoplankton, and zooplankton data in relation to vessel operations. Data Structure: These data are collected at the GLSC in the RVCAT Oracle database. The RVCAT database that is the basis for the following data release has been broken down into over 100 tables in order to facilitate greater accessibility. For ease of use, these tables are organized into conceptual groups – Operations, Trawl, Gillnet, Mensuration, Mysis, Benthos Ponar, and Reference. The database structure is described within the metadata record (XML) and entity relationship diagram within each concept group web page. Data Release Method: An updated version of the data will be published at least yearly, which will include new operations data, show any changes to the database structure, and have more quality control applied to the data from previous releases. The metadata will also be updated alongside these data releases in order to describe the data at that time of publication. See the revision history document to follow the structural changes to the database over each data release. Data Quality: Note that the following data release is a snapshot of the database at the time of release. Some data quality checks are still being undertaken after the time of release. Also, a large section of this database includes legacy data that if issues arise for cannot be addressed, but nevertheless adds great value to the database. When approaching the following data release, it is strongly suggested to approach the Great Lakes Science Center's researchers for input. Distribution Liability Statement: Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty.

Access & Use Information

Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

Downloads & Resources


Metadata Created Date June 1, 2023
Metadata Updated Date October 28, 2023

Metadata Source

Harvested from DOI EDI

Additional Metadata

Resource Type Dataset
Metadata Created Date June 1, 2023
Metadata Updated Date October 28, 2023
Publisher U.S. Geological Survey
Identifier USGS:57e185c8e4b0908250033a54
Data Last Modified 20200820
Category geospatial
Public Access Level public
Bureau Code 010:12
Metadata Context
Metadata Catalog ID
Schema Version
Catalog Describedby
Harvest Object Id d60d18b1-a341-4f63-9f8b-53892e8abacd
Harvest Source Id 52bfcc16-6e15-478f-809a-b1bc76f1aeda
Harvest Source Title DOI EDI
Metadata Type geospatial
Old Spatial -92.6748046874996,40.8334534227341,-75.4833984375042,49.2158955317088
Publisher Hierarchy White House > U.S. Department of the Interior > U.S. Geological Survey
Source Datajson Identifier True
Source Hash 1bc46a22ae87246f8468be31aeb4640635e21bac4f190a1b7a1f773534fb8bb3
Source Schema Version 1.1
Spatial {"type": "Polygon", "coordinates": -92.6748046874996, 40.8334534227341, -92.6748046874996, 49.2158955317088, -75.4833984375042, 49.2158955317088, -75.4833984375042, 40.8334534227341, -92.6748046874996, 40.8334534227341}

Didn't find what you're looking for? Suggest a dataset here.