{"accessLevel": "public", "bureauCode": ["010:12"], "contactPoint": {"@type": "vcard:Contact", "fn": "Thea M Edwards", "hasEmail": "mailto:tedwards@usgs.gov"}, "description": "This data set describes developmental and physiological effects observed in fathead minnow embryos that were exposed to sodium nitrate or conductivity-matched controls. Exposures were conducted in the laboratory from fertilization through 21 days post-fertilization (dpf). Nitrate doses were 0, 2, 5, 10, 25, or 100 milligrams per liter nitrate-nitrogen; conductivity controls were matched to the 10 and 100 milligrams per liter nitrate-nitrogen treatments. During the experiment, we assessed heart rate and percent arrhythmic heart beats at 3 dpf, timing of hatch and inflation of the posterior and anterior swim bladders, presence of pericardial edema or scoliosis, fish metrics at 21 dpf (fish length and weight; swim bladder length, width, and volume), and mortality. Water quality data during the exposure period are also presented, and include conductivity, pH, nitrate-nitrogen, total ammonia, unionized ammonia, and dissolved oxygen.", "distribution": [{"@type": "dcat:Distribution", "accessURL": "https://doi.org/10.5066/P9E7BKEX", "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.63248e0bd34e71c6d67b56f0.xml", "format": "XML", "mediaType": "text/xml", "title": "Original Metadata"}], "identifier": "http://datainventory.doi.gov/id/dataset/USGS_63248e0bd34e71c6d67b56f0", "keyword": ["Pimephales promelas", "USGS:63248e0bd34e71c6d67b56f0", "biota", "fathead minnow", "fish", "organism growth and development", "sodium nitrate", "swim bladder", "water quality"], "modified": "2023-04-24T00:00:00Z", "publisher": {"@type": "org:Organization", "name": "U.S. Geological Survey"}, "spatial": "-92.284300, 38.910784, -92.274450, 38.912612", "theme": ["geospatial"], "title": "Water chemistry and fish health effects for fathead minnow embryos exposed to sodium nitrate and matched conductivity controls for 21 days post fertilization."}