@prefix dcat: <http://www.w3.org/ns/dcat#> .
@prefix dct: <http://purl.org/dc/terms/> .
@prefix foaf: <http://xmlns.com/foaf/0.1/> .
@prefix gsp: <http://www.opengis.net/ont/geosparql#> .
@prefix locn: <http://www.w3.org/ns/locn#> .
@prefix vcard: <http://www.w3.org/2006/vcard/ns#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

<https://data.amerigeoss.org/dataset/337b161c-aaad-4b20-a29b-14c8ffbc58e3> a dcat:Dataset ;
    dct:description "This data release includes periphyton sample and taxonomic information collected within the Lower Grand River hydrologic unit code 10280103, Missouri and Iowa, 2011 through 2018. Sample information includes U.S. Geological Survey station name and identification number where the sample was collected, the sample date, if the sample was a replicate sample, and a unique sample identification code. Taxonomic information provided in each row includes the currently accepted taxa name, average cell density, average biovolume per cell, total taxa biovolume, relative biovolume, total sample biovolume, laboratory notes, and taxon name provided by the identifying laboratory." ;
    dct:identifier "USGS:5e7929d0e4b01d509270e61a" ;
    dct:issued "2025-11-20T21:40:14.990210"^^xsd:dateTime ;
    dct:modified "20200827"^^xsd:gYear ;
    dct:publisher <https://data.amerigeoss.org/organization/727dbdd5-3f98-4ac0-9d28-5e344558139b> ;
    dct:spatial [ a dct:Location ;
            locn:geometry "POLYGON ((-94.6000 39.0000, -94.6000 41.5000, -93.0000 41.5000, -93.0000 39.0000, -94.6000 39.0000))"^^gsp:wktLiteral ] ;
    dct:title "Periphyton community data within the Lower Grand River hydrologic unit code 10280103, Missouri and Iowa, 2011—2018" ;
    dcat:contactPoint [ a vcard:Organization ;
            vcard:fn "Heather Krempa" ;
            vcard:hasEmail <mailto:hkrempa@usgs.gov> ] ;
    dcat:distribution <https://data.amerigeoss.org/dataset/337b161c-aaad-4b20-a29b-14c8ffbc58e3/resource/3bf48a2f-600a-4fcb-9cb5-fb80aa33ed9a>,
        <https://data.amerigeoss.org/dataset/337b161c-aaad-4b20-a29b-14c8ffbc58e3/resource/b4d1ce74-8f8c-4496-8013-22f27e63d4f2> ;
    dcat:keyword "algae",
        "amerigeo",
        "amerigeoss",
        "aquatic-biology",
        "aquatic-ecology",
        "aquatic-ecosystems",
        "biological-productivity",
        "ckan",
        "ecology",
        "eutrophication",
        "geo",
        "geoss",
        "national",
        "north-america",
        "periphyton",
        "surface-water-quality",
        "united-states",
        "usgs-5e7929d0e4b01d509270e61a" ;
    dcat:theme <%7Bgeospatial%7D> .

<https://data.amerigeoss.org/dataset/337b161c-aaad-4b20-a29b-14c8ffbc58e3/resource/3bf48a2f-600a-4fcb-9cb5-fb80aa33ed9a> a dcat:Distribution ;
    dct:description "Landing page for access to the data" ;
    dct:format "XML" ;
    dct:issued "2022-08-06T22:24:27.514080"^^xsd:dateTime ;
    dct:modified "2025-11-20T21:40:14.979340"^^xsd:dateTime ;
    dct:title "Digital Data" ;
    dcat:accessURL <https://doi.org/10.5066/P9BYF1EN> ;
    dcat:mediaType "application/http" .

<https://data.amerigeoss.org/dataset/337b161c-aaad-4b20-a29b-14c8ffbc58e3/resource/b4d1ce74-8f8c-4496-8013-22f27e63d4f2> a dcat:Distribution ;
    dct:description "The metadata original format" ;
    dct:format "XML" ;
    dct:issued "2022-08-06T22:24:27.514074"^^xsd:dateTime ;
    dct:modified "2025-11-20T21:40:14.978913"^^xsd:dateTime ;
    dct:title "Original Metadata" ;
    dcat:accessURL <https://data.usgs.gov/datacatalog/metadata/USGS.5e7929d0e4b01d509270e61a.xml> ;
    dcat:mediaType "text/xml" .

<https://data.amerigeoss.org/organization/727dbdd5-3f98-4ac0-9d28-5e344558139b> a foaf:Agent ;
    foaf:name "US Migrating" .