{"accessLevel": "public", "bureauCode": ["010:12"], "contactPoint": {"@type": "vcard:Contact", "fn": "Yu-Chun Kao", "hasEmail": "mailto:ykao@usgs.gov"}, "description": "The data release includes part of the bottom-trawl and gill-net survey data collected between 1952 and 1962 from the research vessel R/V <em>Cisco</em>. The bottom-trawl dataset includes tables for fishing operations and effort (BT_OP.csv), fish catch (BT_Catch.csv), and individual length-weight-sex-maturity (LWSM) records (BT_Fish.csv) for only a subset of species (details below). The gill-net dataset includes tables for fishing operations (GN_OP.csv), fishing effort (GN_Effort.csv), fish catch (GN_Catch.csv), and individual LWSM records (GN_Fish.csv) for only a subset of species (details below). Two reference tables, BT_Spec.csv and Species.csv, are used for bottom trawl specifications and fish species names, respectively.<br />\n<br />\nThis data release is part of the project "Historical habitat use by <em>Coregonus artedi</em> in the Upper Great Lakes and critical embayments" funded by Environmental Protection Agency's Great Lakes Restoration Initiative. Due to the scope of this project, the catch tables (GN_Catch.csv and BT_Catch.csv) only include data for alewife (<em>Alosa pseudoharengus</em>), rainbow smelt (<em>Osmerus mordax</em>), and cisco (<em>Coregonus artedi</em>). LWSM data tables (GN_Fish.csv and BT_Fish.csv) only include data for cisco. Additional data collected from the surveys are archived at the Great Lakes Science Center.", "distribution": [{"@type": "dcat:Distribution", "accessURL": "https://doi.org/10.5066/P9P28C5V", "description": "Landing page for access to the data", "format": "XML", "mediaType": "application/http", "title": "Digital Data"}, {"@type": "dcat:Distribution", "description": "The metadata original format", "downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.606dc774d34e670a7d5f6241.xml", "format": "XML", "mediaType": "text/xml", "title": "Original Metadata"}], "identifier": "http://datainventory.doi.gov/id/dataset/USGS_606dc774d34e670a7d5f6241", "keyword": ["Fishery", "Great Lakes", "Lake Huron", "Lake Michigan", "Lake Superior", "Lakes", "RV Cisco", "Survey", "USGS:606dc774d34e670a7d5f6241", "freshwater ecosystems", "inland fishery resources", "inlandWaters"], "modified": "2025-01-24T00:00:00Z", "publisher": {"@type": "org:Organization", "name": "U.S. Geological Survey"}, "spatial": "-92.2000, 41.5000, -81.5000, 49.0000", "theme": ["geospatial"], "title": "Bottom-trawl and gill-net data from the Upper Great Lakes, collected by R/V Cisco, 1952\u20131962"}