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Filters Date Types (for Date Range) Types Map Service (1) OGC WFS Layer (1) OGC WMS Layer (1) OGC WMS Service (1) Contacts Patrick Kocovsky U.S. Geological Survey U.S. Geological Survey - ScienceBase Great Lakes Science Center Mark R Dufour More... Tag Types Theme (4) Place (4) USGS Scientific Topic Keyword (4) Harvest Set (4) Tag Schemes USGS Thesaurus (4) Common Geographic Areas (3) Common geographic areas (1) ISO 19115 Topic Category (3) View Results as: JSON ATOM CSV

Hydroacoustic data from central Lake Erie, 2010-2019 Hydroacoustic estimates of fish density are used for fisheries management in central Lake Erie. Hydroacoustic data were collected along up to four cross-lake transects in central Lake Erie July 2010 through July 2019. Software-generated raw variables used for calculating estimates of hydroacoustic fish densities are presented here. Categories: Data; Tags: Aquatic Biology, Great Lakes, Lake Erie, USGS Science Data Catalog (SDC), aquatic biology, All tags... biota, field inventory and monitoring, fishery management, multibeam sonar, transect sampling, Fewer tags Bathymetry and Water-Quality Data of Surface Waterbodies in Cook County, Illinois, 2022 The U.S. Geological Survey (USGS), in cooperation with the Cook County Bureau of Technology (BOT), prioritized waterbodies (lakes, rivers, and canals) of interest within Cook County to survey in 2022. These surveys describe the bathymetry and basic water-quality conditions observed, and could be used by the BOT to assist with resource management decisions and uses, as well as build an inventory that could be shared with other local governmental agencies. Waterbodies surveyed in 2022 and included in this data release are: Arrowhead Lake, Axehead Lake, Baker's Lake, Belly Deep Slough, Bode Lake North, Bode Lake South, Bull Frog Lake, Busse Lake Main Pool, Busse Lake North Pool, Busse Lake South Pool, Busse Woods... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Chicago, Cook County, Environmental Health, Geography, Hydrology, All tags... Illinois, USGS Science Data Catalog (SDC), Water Quality, bathymetry, multibeam sonar, single-beam echo sounder, surface water (non-marine), water quality, Fewer tags Hydroacoustic data from central Lake Erie, 2020 Hydroacoustic estimates of fish density are used for fisheries management in central Lake Erie. Hydroacoustic data were collected along 8, randomly-selected, 5-kilometer transects and three transects between the US shore and the international border in central Lake Erie in July 2020. Software-generated raw variables used for calculating estimates of hydroacoustic fish densities are presented here. These data are related to a longer-term data set from 2010-2019. Categories: Data; Tags: Aquatic Biology, Great Lakes, Lake Erie, USGS Science Data Catalog (SDC), aquatic biology, All tags... biota, field inventory and monitoring, fishery management, multibeam sonar, transect sampling, Fewer tags Hydroacoustic data from central Lake Erie, 2021 Hydroacoustic estimates of fish density are used for fisheries management in central Lake Erie. Hydroacoustic data were collected along 10, randomly-selected, 5-kilometer transects and two cross-basin transects between the US and Canadian shorelines in central Lake Erie during July 2021. Software-generated raw variables were used for calculating estimates of hydroacoustic fish densities presented here in tabular form. These data are related to a longer-term data set from 2010-2019, and a data set from 2020. Categories: Data; Tags: Aquatic Biology, Ecology, Great Lakes, Lake Erie, USGS Science Data Catalog (SDC), All tags... aquatic biology, biota, field inventory and monitoring, fishery management, multibeam sonar, transect sampling, Fewer tags