{"accessLevel": "public", "bureauCode": ["010:12"], "contactPoint": {"@type": "vcard:Contact", "fn": "Kim T Fredricks", "hasEmail": "mailto:kfredricks@usgs.gov"}, "description": "This dataset includes data collected to determine the effects of formaldehyde on nitrification processes in biofilters of recirculating aquaculture systems (RAS) from two field trials.  Biofilter nitrification was monitored by measuring the levels of total ammonia nitrogen, nitrite, and nitrate in experimental aquaria containing a small biofilter before and after formaldehyde was applied to the test system.", "distribution": [{"@type": "dcat:Distribution", "accessURL": "https://doi.org/10.5066/F7R78CDT", "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.58d158fae4b0236b68f6b710.xml", "format": "XML", "mediaType": "text/xml", "title": "Original Metadata"}], "identifier": "http://datainventory.doi.gov/id/dataset/USGS_58d158fae4b0236b68f6b710", "keyword": ["Nitrosomonas", "RAS", "USGS:58d158fae4b0236b68f6b710", "aquaculture", "nitrification", "nitrobacter", "recirculating aquaculture systems"], "modified": "2021-08-20T00:00:00Z", "publisher": {"@type": "org:Organization", "name": "U.S. Geological Survey"}, "theme": ["geospatial"], "title": "Determine the effect of Parasite-S (formalin), administered to control mortality from saprolegniasis, on the nitrogen oxidation efficiency of the biofilters of recirculating aquaculture systems (RAS) for freshwater finfish \u2013 Field Trials"}