{"accessLevel": "public", "bureauCode": ["010:12"], "contactPoint": {"@type": "vcard:Contact", "fn": "Carl O Ostberg", "hasEmail": "mailto:costberg@usgs.gov"}, "description": "The data support a study that surveyed the spatial and seasonal variability of northern pike (Esox lucius) environmental DNA (eDNA) between river kilometer 1103 and 1158 in Lake Roosevelt, Washington, USA. The metadata represent qPCR quantification cycle (Cq) values for a northern pike assay performed on water samples collected at the same locations in June and September 2022, water filtration volume, water temperature, and latitude and longitude for each sample site.", "distribution": [{"@type": "dcat:Distribution", "accessURL": "https://doi.org/10.5066/P1JEPIVI", "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.683dcefdd4be0234870fc976.xml", "format": "XML", "mediaType": "text/xml", "title": "Original Metadata"}], "identifier": "http://datainventory.doi.gov/id/dataset/USGS_683dcefdd4be0234870fc976", "keyword": ["Columbia River", "Lake Roosevelt", "Northern pike", "USGS:683dcefdd4be0234870fc976", "Washington State, USA", "biota", "environmental DNA", "invasive species"], "modified": "2025-06-05T00:00:00Z", "publisher": {"@type": "org:Organization", "name": "U.S. Geological Survey"}, "spatial": "-118.5370, 48.1789, -117.8668, 48.8105", "theme": ["geospatial"], "title": "qPCR data for northern pike eDNA surveys in Lake Roosevelt, Washington, 2022"}