Diatom Assemblages as Indicators of Water Quality in Freshwater Habitats of Guam
This data package was created 2025-12-03 10:49:12 by NPSTORET and includes selected project, location, and result data. Data are from William J. Zolan and J. A. Marsh's (University of Guam Water and Energy Research Institute of the Western Pacific) 1981 Project Completion Report (Technical Report #29) entitled "Diatom Assemblages as Indicators of Water Quality in Freshwater Habitats of Guam." This diatom survey of various Guam freshwater sites, including those known to be polluted, identified which diatoms were the predominant species in the periphyton according to habitat and water quality, and may be used as biological indicators of increased pollution concentrations. The study also provided ranges of common species diversity indices for the periphyton assemblages. Only water quality data and a diatom species list are presented here.
Data contained in WAPA_NPSTORET_BE.ACCDB (NPSTORET back-end file) were filtered to include:
Organization:
- WAPA: War in the Pacific National Historical Park
Project:
- WAPA0025: Diatom Assemblages as Indicators of Water Quality in Freshwater Habitats of Guam
Station:
- Include Trip QC And All Station Visit Results
Value Status:
- Accepted or Certified (exported as Final) or Final
The data package is organized into six data tables:
- Projects.csv - describes the purpose and background of the monitoring efforts
- Locations.csv - documents the attributes of the monitoring locations/stations
- Results.csv - contains the field measurements, observations, and/or lab analyses for each sample/event/data grouping
- HUC.csv - enumerates the domain of allowed values for 8-digit and 12-digit hydrologic unit codes utilized by the Locations data table
- Characteristics.csv - enumerates the domain of characteristics available in NPSTORET to identify what was sampled, measured or observed in Results
- Taxon.csv - enumerates the domain of taxa available in NPSTORET to identify the organism sampled for Results
Period of record for filtered data is 1978-10-03 to 1979-07-23. This data package is a snapshot in time of one National Park Service project. The most current data for this project, which may be more or less extensive than that in this data package, can be found on the Water Quality Portal at:
https://www.waterqualitydata.us/data/Result/search?project=WAPA0025&mimeType=csv&zip=yes&dataProfile=biological&providers=STORET
Complete Metadata
| accessLevel | public |
|---|---|
| bureauCode |
[
"010:24"
]
|
| contactPoint |
{
"fn": "NPS IRMA Help",
"@type": "vcard:Contact",
"hasEmail": "mailto:NRSS_DataStore@nps.gov"
}
|
| description | This data package was created 2025-12-03 10:49:12 by NPSTORET and includes selected project, location, and result data. Data are from William J. Zolan and J. A. Marsh's (University of Guam Water and Energy Research Institute of the Western Pacific) 1981 Project Completion Report (Technical Report #29) entitled "Diatom Assemblages as Indicators of Water Quality in Freshwater Habitats of Guam." This diatom survey of various Guam freshwater sites, including those known to be polluted, identified which diatoms were the predominant species in the periphyton according to habitat and water quality, and may be used as biological indicators of increased pollution concentrations. The study also provided ranges of common species diversity indices for the periphyton assemblages. Only water quality data and a diatom species list are presented here. Data contained in WAPA_NPSTORET_BE.ACCDB (NPSTORET back-end file) were filtered to include: Organization: - WAPA: War in the Pacific National Historical Park Project: - WAPA0025: Diatom Assemblages as Indicators of Water Quality in Freshwater Habitats of Guam Station: - Include Trip QC And All Station Visit Results Value Status: - Accepted or Certified (exported as Final) or Final The data package is organized into six data tables: - Projects.csv - describes the purpose and background of the monitoring efforts - Locations.csv - documents the attributes of the monitoring locations/stations - Results.csv - contains the field measurements, observations, and/or lab analyses for each sample/event/data grouping - HUC.csv - enumerates the domain of allowed values for 8-digit and 12-digit hydrologic unit codes utilized by the Locations data table - Characteristics.csv - enumerates the domain of characteristics available in NPSTORET to identify what was sampled, measured or observed in Results - Taxon.csv - enumerates the domain of taxa available in NPSTORET to identify the organism sampled for Results Period of record for filtered data is 1978-10-03 to 1979-07-23. This data package is a snapshot in time of one National Park Service project. The most current data for this project, which may be more or less extensive than that in this data package, can be found on the Water Quality Portal at: https://www.waterqualitydata.us/data/Result/search?project=WAPA0025&mimeType=csv&zip=yes&dataProfile=biological&providers=STORET |
| distribution |
[
{
"@type": "dcat:Distribution",
"title": "Projects.csv",
"format": "csv",
"mediaType": "text/csv",
"description": "Data describing the purpose and background of the monitoring effort",
"downloadURL": "https://irma.nps.gov/DataStore/DownloadFile/748084?Reference=2316288"
},
{
"@type": "dcat:Distribution",
"title": "Locations.csv",
"format": "csv",
"mediaType": "text/csv",
"description": "Data documenting attributes of the monitoring locations/stations",
"downloadURL": "https://irma.nps.gov/DataStore/DownloadFile/748085?Reference=2316288"
},
{
"@type": "dcat:Distribution",
"title": "Results.csv",
"format": "csv",
"mediaType": "text/csv",
"description": "Data documenting the field measurements, observations, and/or lab analyses",
"downloadURL": "https://irma.nps.gov/DataStore/DownloadFile/748086?Reference=2316288"
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{
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"title": "WAPA0025_DataPackage_Export_20251203_metadata.xml",
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"downloadURL": "https://irma.nps.gov/DataStore/DownloadFile/748080?Reference=2316288"
},
{
"@type": "dcat:Distribution",
"title": "HUC.csv",
"format": "csv",
"mediaType": "text/csv",
"description": "Enumeration of 8-digit and 12-digit HUC codes",
"downloadURL": "https://irma.nps.gov/DataStore/DownloadFile/748082?Reference=2316288"
},
{
"@type": "dcat:Distribution",
"title": "Characteristics.csv",
"format": "csv",
"mediaType": "text/csv",
"description": "Enumeration of subset of characteristics in NPSTORET that are currently accepted by EQuIS and WQX",
"downloadURL": "https://irma.nps.gov/DataStore/DownloadFile/748083?Reference=2316288"
},
{
"@type": "dcat:Distribution",
"title": "Taxon.csv",
"format": "csv",
"mediaType": "text/csv",
"description": "Enumeration of the subset of taxa in NPSTORET that are currently accepted by WQX",
"downloadURL": "https://irma.nps.gov/DataStore/DownloadFile/748081?Reference=2316288"
}
]
|
| identifier | http://datainventory.doi.gov/id/dataset/NPS_DataStore_2316288 |
| issued | 2025-12-03T00:00:00Z |
| keyword |
[
"NPSTORET",
"alkalinity",
"bacteria",
"chemical properties",
"chloride",
"chlorophyll a",
"dissolved organic compounds",
"dissolved oxygen",
"elements and compounds",
"manganese",
"nitrate",
"nitrogen",
"ph",
"phosphate",
"phosphorus",
"population and community properties",
"specific conductivity",
"suspended solids",
"turbidity",
"water properties",
"water quality",
"water temperature"
]
|
| landingPage | https://irma.nps.gov/DataStore/Reference/Profile/2316288 |
| license | http://www.usa.gov/publicdomain/label/1.0/ |
| modified | 2025-12-03T00:00:00Z |
| programCode |
[
"010:118",
"010:119"
]
|
| publisher |
{
"name": "National Park Service",
"@type": "org:Organization"
}
|
| spatial | 144.6449,13.3765974,144.77449,13.485343 |
| temporal | 1978-10-03/1979-07-23 |
| theme |
[
"Data Package"
]
|
| title | Diatom Assemblages as Indicators of Water Quality in Freshwater Habitats of Guam |
