gov.noaa.nodc:0228761 eng utf8 dataset NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact HTTPS NOAA Contact Information Information for contacts at NCEI. information custodian 2025-05-16T15:50:33Z ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) Coral size and condition data collected by the Guam Long-term Coral Reef Monitoring Program from 2010-08-04 to 2019-09-06 (NCEI Accession 0228761) 2021-04-16 publication 2021-04-09 creation NOAA National Centers for Environmental Information gov.noaa.nodc:0228761 NCEI Archive Management System 0228761 NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact HTTPS NCEI Contact Information Information for contacts at NCEI. information publisher David R. Burdick University of Guam burdickd@triton.uog.edu resourceProvider University of Guam resourceProvider David R. Burdick University of Guam burdickd@triton.uog.edu principalInvestigator Burdick, David University of Guam Marine Laboratory burdickd@triton.uog.edu author Guam Bureau of Statistics and Plans collaborator University of Guam contributor tableDigital The data in this package include coral colony size and condition data collected as part of the Guam Long-term Coral Reef Monitoring Program (GLTMP). The monitoring team assesses all coral colonies found within quadrats placed every five meters along 25 m transects (although note that transects of different lengths have been used). Quadrat size is 0.25 sq m for most sites; a larger quadrat size (0.75 sq m) is used for the Western Shoals and Fouha Bay sites. Collected data include measurements of coral colony length and width as well as an assessment of condition (percent old mortality, percent new mortality, disease/condition type and severity), with identification to species level when possible. These data were collected using a split-panel sampling approach, whereby a mix of permanent and non-permanent sampling stations (one sampling station = one transect) are visited within each site. The location of coral colony survey quadrats at permanent sampling stations are marked using masonry nails, facilitating the near-identical positioning of quadrats during subsequent visits. However, the identical re-positioning of some quadrats could not be attained during subsequent visits due to the failure to re-locate the nails. The monitoring sites represent high priority reef areas selected by an advisory body comprised of reef managers, researchers, and technicians. The sites were not selected randomly from around the island and thus should not be considered representative of reef condition at the island-scale. While the general location of the sites were selected based on management priority, the site boundaries were delineated using bathymetry and benthic habitat data within ArcGIS; the locations of the sampling stations were generated randomly within each site’s boundaries using ArcGIS. The coral quadrat data are collected as part of the Guam Long-term Coral Reef Monitoring Program, which documents a number of important parameters related to ecosystem health; these parameters are grouped into three categories: water quality, benthic habitat, and associated biological communities. Many of these parameters are indicators of stressors, and significant changes in these parameters will likely raise concern and possibly trigger management actions. Data collected for these indicators provide important information about the resilience of high priority reef areas around Guam. Monitoring these parameters allows resource managers to evaluate the effectiveness of specific management strategies, and inform the development of new management actions. Funding Agency: NOAA Coral Reef Conservation Program completed historicalArchive NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact HTTPS NCEI Contact Information Information for contacts at NCEI. information pointOfContact asNeeded https://www.ncei.noaa.gov/access/metadata/landing-page/bin/gfx?id=gov.noaa.nodc:0228761 Preview graphic PNG 0228761 NCEI ACCESSION NUMBER 2021-04-05 publication CORAL CORAL - CENSUS CORAL - COLONY SIZE CORAL - SPECIES IDENTIFICATION theme NODC DATA TYPES THESAURUS visual observation instrument NODC INSTRUMENT TYPES THESAURUS biological in situ survey - biological survey - coral reef survey - swimmer/diver visual observation theme NODC OBSERVATION TYPES THESAURUS University of Guam dataCentre NODC COLLECTING INSTITUTION NAMES THESAURUS University of Guam dataCentre NODC SUBMITTING INSTITUTION NAMES THESAURUS Coral Reef Conservation Program (CRCP) CORAL REEF STUDIES project NODC PROJECT NAMES THESAURUS Northwest Pacific Ocean (limit-180) Philippine Sea place NODC SEA AREA NAMES THESAURUS oceanography theme WMO_CategoryCode 2012-09-15 publication Guam Bureau of Statistics and Plans University of Guam Marine Laboratory dataCentre Collecting Institutions NA07NOS4260060 NA10NOS4260060 NA11NOS4820007 NA13NOS4820012 NA15NOS4820039 NA17NOS4820038 State and Territorial Government Cooperative Agreements project CRCP Project Comprehensive Long-term Coral Reef Monitoring at Permanent Sites on Guam project Provider Project Names Numeric Data Sets > Benthic theme CoRIS Discovery Thesaurus EARTH SCIENCE > Biosphere > Aquatic Habitat > Reef Habitat > Description EARTH SCIENCE > Biosphere > Ecological Dynamics > Species Richness EARTH SCIENCE > Biosphere > Zoology > Corals > Coral Diseases EARTH SCIENCE > Biosphere > Zoology > Corals > Coral Diseases > Bleaching EARTH SCIENCE > Biosphere > Zoology > Corals > Reef Monitoring and Assessment > Benthos Analysis > Quadrat Monitoring EARTH SCIENCE > Biosphere > Zoology > Corals > Reef Monitoring and Assessment > Benthos Analysis > Quadrat Monitoring > In Situ EARTH SCIENCE > Biosphere > Zoology > Corals > Reef Monitoring and Assessment > Coral Colony Size and Condition EARTH SCIENCE > Biosphere > Zoology > Corals > Reef Monitoring and Assessment > Coral Colony Size and Condition > Quadrat Monitoring EARTH SCIENCE > Oceans > Coastal Processes > Coral Reefs EARTH SCIENCE > Oceans > Coastal Processes > Coral Reefs > Coral Reef Ecology > Benthic biology theme CoRIS Theme Thesaurus EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > MARINE ECOSYSTEMS > BENTHIC EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > MARINE ECOSYSTEMS > REEF > CORAL REEF EARTH SCIENCE > SOLID EARTH > GEOMORPHIC LANDFORMS/PROCESSES > COASTAL LANDFORMS > CORAL REEFS theme Global Change Master Directory (GCMD) Science Keywords 2026 revision 24 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) Greenbelt MD https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords HTTPS GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian VISUAL OBSERVATIONS > VISUAL OBSERVATIONS instrument Global Change Master Directory (GCMD) Instrument Keywords 2026 revision 24 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) Greenbelt MD https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords HTTPS GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian COUNTRY/TERRITORY > United States of America > Guam > Achang (13N144E0064) COUNTRY/TERRITORY > United States of America > Guam > Cocos Lagoon (13N144E0057) COUNTRY/TERRITORY > United States of America > Guam > East Agana Bay (13N144E0063) COUNTRY/TERRITORY > United States of America > Guam > Fouha Bay (13N144E0024) COUNTRY/TERRITORY > United States of America > Guam > Piti Bay (13N144E0061) COUNTRY/TERRITORY > United States of America > Guam > Tumon Bay (13N144E0004) COUNTRY/TERRITORY > United States of America > Guam > Western Shoal (13N144E0062) OCEAN BASIN > Pacific Ocean > Western Pacific Ocean > Guam > Achang (13N144E0064) OCEAN BASIN > Pacific Ocean > Western Pacific Ocean > Guam > Cocos Lagoon (13N144E0057) OCEAN BASIN > Pacific Ocean > Western Pacific Ocean > Guam > East Agana Bay (13N144E0063) OCEAN BASIN > Pacific Ocean > Western Pacific Ocean > Guam > Fouha Bay (13N144E0024) OCEAN BASIN > Pacific Ocean > Western Pacific Ocean > Guam > Piti Bay (13N144E0061) OCEAN BASIN > Pacific Ocean > Western Pacific Ocean > Guam > Tumon Bay (13N144E0004) OCEAN BASIN > Pacific Ocean > Western Pacific Ocean > Guam > Western Shoal (13N144E0062) place CoRIS Place Thesaurus OCEAN > PACIFIC OCEAN > NORTH PACIFIC OCEAN place Global Change Master Directory (GCMD) Location Keywords 2026 revision 24 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) Greenbelt MD https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords HTTPS GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian VERTICAL LOCATION > SEA FLOOR stratum Global Change Master Directory (GCMD) Stratum Keywords 2026 revision 24 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) Greenbelt MD https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords HTTPS GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian 5T40E9 Send2NCEI Submission Package ID accessLevel: public otherRestrictions Cite as: Burdick, David (2021). Coral size and condition data collected by the Guam Long-term Coral Reef Monitoring Program from 2010-08-04 to 2019-09-06 (NCEI Accession 0228761). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0228761. Accessed [date]. Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives. otherRestrictions Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose. Pacific Islands Fisheries Science Center, 2014: Guam Long-term Coral Reef Monitoring Program Coral Colony Size and Condition Surveys since 2010, https://www.fisheries.noaa.gov/inport/item/47781. 2014 publication gov.noaa.nmfs.inport:47781 https://www.fisheries.noaa.gov/inport/item/47781 HTTPS https://www.fisheries.noaa.gov/inport/item/47781 InPort Metadata Record information NOAA Pacific Islands Fisheries Science Center (NMFS/PIFSC) publisher tableDigital crossReference Guam Long-term Coral Reef Monitoring Program publication https://guamcoralreefmonitoring.wordpress.com/ HTTPS Guam Long-term Coral Reef Monitoring Program Guam Long-term Coral Reef Monitoring Program Web Page information crossReference Burdick, David; Brown, Valerie; Miller, Roxanna. A report of the Comprehensive Long-term Coral Reef Monitoring at Permanent Sites on Guam project; A report of the Comprehensive Long-term Coral Reef Monitoring at Permanent Sites on Guam project: Including the results of an analysis of coral reef monitoring data collected at high priority reef areas between 2010 and 2018. 2019 2019 publication noaa:29489 https://repository.library.noaa.gov/view/noaa/29489 HTTPS https://repository.library.noaa.gov/view/noaa/29489 NOAA Central Library: Non-series Report information Burdick, David author Brown, Valerie author Miller, Roxanna author United States. National Ocean Service author Pacific Islands Region author University of Guam. Marine Laboratory author NOAA Library https://library.noaa.gov/ HTTPS NOAA Library website Institution web page information publisher crossReference collection eng; USA utf8 environment oceans biota 144.583 144.991 13.21 13.671 2010-08-04 2019-09-06 NOAA National Centers for Environmental Information +1-301-713-3277 ncei.info@noaa.gov pointOfContact In most cases, electronic downloads of the data are free. However, fees may apply for custom orders, data certifications, copies of analog materials, and data distribution on physical media. Contact NCEI for other distribution options and instructions. CSV 5.424 https://www.ncei.noaa.gov/archive/accession/0228761 HTTPS Web browser NCEI Dataset Landing Page Navigate directly to the URL for a descriptive web page with download links. information https://www.ncei.noaa.gov/archive/accession/oas/228761 HTTPS Web browser Descriptive Information Navigate directly to the URL for a descriptive web page with download links. information https://www.ncei.noaa.gov/archive/accession/download/228761 HTTPS Web browser HTTPS Navigate directly to the URL for data access and direct download. download ftp://ftp-oceans.ncei.noaa.gov/nodc/archive/arc0175/0228761/ FTP Any FTP client FTP These data are available through the File Transfer Protocol (FTP). FTP is no longer supported by most internet browsers. You may copy and paste the FTP link to the data into an FTP client (e.g., FileZilla or WinSCP). download dataset NCEI Accession 0228761 v1.1 was published. 2021-04-16T19:33:12Z NCEI Accession 0228761 v1.1 publication https://www.ncei.noaa.gov/archive/accession/0228761/1.1 HTTPS NCEI Accession 0228761 v1.1 published 2021-04-16T19:33:12Z download dataset Parameter or Variable: CORAL - CENSUS (measured); Units: cm; Observation Category: in situ; Sampling Instrument: Not applicable; Sampling and Analyzing Method: All coral colonies occurring within a 0.5 x 0.5 m quadrat placed at 0 m, 5 m, 10 m, 15 m, 20 m and 25 m along the right side of the transect are identified and measured and their condition assessed. Only those colonies whose geometric center is within the quadrat are counted. Percent old dead, percent recent dead, and disease type and severity are also recorded for each colony. The cause of tissue mortality is also noted if it can be determined with a reasonable degree of confidence. Measurements of the longest dimension and the width of the colony perpendicular to the longest dimension are made. An effort is made to carefully count all visible colonies, including recruits/juvenile corals. Care is taken to prevent the count of remnants of larger colonies as coral recruits/juvenile corals. Any tissue isolate suspected of being a remnant of a larger colony is noted as such, in order to prevent the calculation of erroneous coral colony density. At least two planar view photos are taken of each quadrat in order to maintain a photographic record of all quadrats. Photos are also taken of corals for which species identification is uncertain, of unidentified sources of mortality, or of species or conditions of particular interest.; Data Quality Method: Observations at each site were made by divers who have been trained, and met minimum standards in identifying species present at the survey locations and in assessing colony size and condition. Most data collected through 2019 was collected solely by one person (the Monitoring Program Coordinator), but data for some sites were collected wholly or in part by one other skilled observer. Improvement over time in observers' general level of skill with the survey method, and an evolving understanding of the coral taxa at the monitoring sites, should be taken into account when comparing data across time; however, minor improvements in skill are not expected to have a significant impact on data quality. Comparisons of data across sites or across years must take into account differences in environmental and biological aspects of each site. Comparisons for a give site across time should consider any changes to the site boundaries over time. Please refer to the Extents section of the NOAA NMFS InPort metadata record to see how the Tumon site boundaries shifted after 2010. The same methods of data collection were used at each of the stations surveyed, with the exception of surveys at the Western Shoals site, for which larger (1 m x 0.75 m) quadrats were used along 15 m transects. Species-level identifications and coral health assessments likely became more accurate over time, but minor improvements in skill are not expected to have a significant impact on data quality. All observations entered into the database through the online data entry system are compared against observations recorded on the raw data sheet. Once all database records are verified the quality control process is marked as complete for all observations associated with a given station/sampling period. This process is currently carried out by the Program Coordinator or the full-time field technician. It should also be noted that the data management system employs hard and soft validation to minimize data entry errors. asNeeded Metadata are developed, maintained and distributed by NCEI. Updates are performed as needed to maintain currentness. NOAA National Centers for Environmental Information custodian visual observation visual observation not an instrument - maybe an observation type