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National Coral Reef Monitoring Program: Benthic Images Collected from Stratified Random Sites (StRS) across the US Pacific since 2010

Published by Pacific Islands Fisheries Science Center | National Oceanic and Atmospheric Administration, Department of Commerce | Catalog Last Checked: September 01, 2026 at 10:34 PM | Dataset Last Updated: August 28, 2026 at 10:22 PM
This metadata record describes the photo-quadrat benthic imagery collected under the National Coral Reef Monitoring Program (NCRMP) across the U.S. Pacific Islands, including American Samoa, CNMI, Guam, Hawai'i, and Pacific Remote Island Areas. The data described here are benthic habitat imagery that result from benthic photo-quadrat surveys conducted along transects at stratified random sites since 2010 as a part of Rapid Ecological Assessment (REA) surveys for corals and fish. From 2010 - 2012 data was collected as part of the Reef Assessment Monitoring Program (RAMP) and from 2013 + it was collected under NCRMP. This record replaces InPort items 25247, 36152, 36153, and 36154. Raw data annotations are described and provided separately (see Related Items Section). A stratified random sampling (StRS) design was employed to survey the coral reef ecosystems across the region. The survey domain encompassed the majority of the mapped area of reef and hard bottom habitats in the 0-30 m depth range. The stratification scheme included island, reef zone, and depth. Sampling effort was allocated based on strata area and sites were randomly located within strata. Sites were surveyed using photo-quadrats along transects to collect benthic imagery to ultimately produce estimates of relative abundance (benthic cover), frequency of occurrence, benthic community taxonomic composition and relative generic richness. The StRS design effectively reduces estimate variance through stratification using environmental covariates and by sampling more sites rather than sampling more transects at a site. Therefore, site-level estimates and site to site comparisons should be used with caution.

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DOC/NOAA/NMFS/PIFSC/ESD > Ecosystem Sciences Division, Pacific Islands Fisheries Science Center, National Marine Fisheries Service, NOAA, U.S. Department of Commerce EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > MARINE ECOSYSTEMS > BENTHIC EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > MARINE ECOSYSTEMS > REEF > CORAL REEF OCEAN > PACIFIC OCEAN > CENTRAL PACIFIC OCEAN > AMERICAN SAMOA OCEAN > PACIFIC OCEAN > CENTRAL PACIFIC OCEAN > HAWAIIAN ISLANDS OCEAN > PACIFIC OCEAN > CENTRAL PACIFIC OCEAN > UNITED STATES MINOR OUTLYING ISLANDS OCEAN > PACIFIC OCEAN > WESTERN PACIFIC OCEAN > MICRONESIA > GUAM OCEAN > PACIFIC OCEAN > WESTERN PACIFIC OCEAN > MICRONESIA > NORTHERN MARIANA ISLANDS

Complete Metadata
@type dcat:Dataset
accessLevel non-public
contactPoint 
{
  "fn": "Not provided - Contact data.gov",
  "hasEmail": "mailto:datagovsupport@gsa.gov"
}
describedByType application/octet-stream
description This metadata record describes the photo-quadrat benthic imagery collected under the National Coral Reef Monitoring Program (NCRMP) across the U.S. Pacific Islands, including American Samoa, CNMI, Guam, Hawai'i, and Pacific Remote Island Areas. The data described here are benthic habitat imagery that result from benthic photo-quadrat surveys conducted along transects at stratified random sites since 2010 as a part of Rapid Ecological Assessment (REA) surveys for corals and fish. From 2010 - 2012 data was collected as part of the Reef Assessment Monitoring Program (RAMP) and from 2013 + it was collected under NCRMP. This record replaces InPort items 25247, 36152, 36153, and 36154. Raw data annotations are described and provided separately (see Related Items Section). A stratified random sampling (StRS) design was employed to survey the coral reef ecosystems across the region. The survey domain encompassed the majority of the mapped area of reef and hard bottom habitats in the 0-30 m depth range. The stratification scheme included island, reef zone, and depth. Sampling effort was allocated based on strata area and sites were randomly located within strata. Sites were surveyed using photo-quadrats along transects to collect benthic imagery to ultimately produce estimates of relative abundance (benthic cover), frequency of occurrence, benthic community taxonomic composition and relative generic richness. The StRS design effectively reduces estimate variance through stratification using environmental covariates and by sampling more sites rather than sampling more transects at a site. Therefore, site-level estimates and site to site comparisons should be used with caution.
distribution 
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    "accessURL": "https://accession.nodc.noaa.gov/0159142",
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    "description": "Metadata (site, date, and location) for photoquadrat benthic images collected at stratified random sites across the Mariana archipelago in 2014 by the NOAA Coral Reef Ecosystem Program (CREP)",
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  {
    "@type": "dcat:Distribution",
    "title": "StR Images MARIAN 2017",
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    "mediaType": "text/html",
    "description": "Photoquadrat benthic images collected at stratified random sites across the Hawaiian archipelago in 2013 by the NOAA Coral Reef Ecosystem Program (CREP)",
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    "@type": "dcat:Distribution",
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    "description": "Photoquadrat benthic images collected at stratified random sites across the Hawaiian archipelago in 2016 by the NOAA Coral Reef Ecosystem Program (CREP)",
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  {
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    "title": "MHI_RFS_PQ_siteinfo_2015",
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    "mediaType": "text/html",
    "description": "MHI site metadata (including site name, date, and location) for the photoquads conducted during 2015 during the MHI Reef Fish Cruise (HA1503) by the ESD.",
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  {
    "@type": "dcat:Distribution",
    "title": "NWHI_PMNM_PQ_siteinfo_2015",
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    "mediaType": "text/html",
    "description": "NWHI site metadata (including site name, date, and location) for the photoquads conducted during 2015 during the NWHI RAMP (HA1505) by PMNM.",
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    "mediaType": "text/html",
    "description": "Photoquadrat benthic images collected at stratified random sites across American Samoa in 2015 by the NOAA Coral Reef Ecosystem Program (CREP)",
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    "description": "Metadata (site, date, and location) for photoquadrat benthic images collected at stratified random sites across American Samoa in 2023 by the PIFSC Ecosystem Sciences Division (ESD)",
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    "mediaType": "text/html",
    "description": "Photoquadrat benthic images collected at stratified random sites across the Pacific Remote Island Areas in 2015 by the NOAA Coral Reef Ecosystem Program (CREP)",
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identifier https://data.noaa.gov/waf/NOAA/nmfs/pifsc/iso/xml/71814.xml
keyword 
[
  "DOC/NOAA/NMFS/PIFSC/ESD > Ecosystem Sciences Division, Pacific Islands Fisheries Science Center, National Marine Fisheries Service, NOAA, U.S. Department of Commerce",
  "EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > MARINE ECOSYSTEMS > BENTHIC",
  "EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > MARINE ECOSYSTEMS > REEF > CORAL REEF",
  "OCEAN > PACIFIC OCEAN > CENTRAL PACIFIC OCEAN > AMERICAN SAMOA",
  "OCEAN > PACIFIC OCEAN > CENTRAL PACIFIC OCEAN > HAWAIIAN ISLANDS",
  "OCEAN > PACIFIC OCEAN > CENTRAL PACIFIC OCEAN > UNITED STATES MINOR OUTLYING ISLANDS",
  "OCEAN > PACIFIC OCEAN > WESTERN PACIFIC OCEAN > MICRONESIA > GUAM",
  "OCEAN > PACIFIC OCEAN > WESTERN PACIFIC OCEAN > MICRONESIA > NORTHERN MARIANA ISLANDS",
  "CAMERA > CAMERA",
  "743",
  "National Coral Reef Monitoring Program",
  "Visual Images > Habitats",
  "EARTH SCIENCE > Biosphere > Aquatic Habitat > Benthic Habitat",
  "EARTH SCIENCE > Biosphere > Aquatic Habitat > Reef Habitat",
  "EARTH SCIENCE > Biosphere > Zoology > Corals",
  "EARTH SCIENCE > Biosphere > Zoology > Corals > Reef Monitoring and Assessment",
  "EARTH SCIENCE > Biosphere > Zoology > Corals > Reef Monitoring and Assessment > Benthos Analysis > Transect Monitoring",
  "EARTH SCIENCE > Biosphere > Zoology > Corals > Reef Monitoring and Assessment > Benthos Analysis > Transect Monitoring > Belt Transect",
  "EARTH SCIENCE > Biosphere > Zoology > Corals > Reef Monitoring and Assessment > In Situ Biological",
  "EARTH SCIENCE > Biosphere > Zoology > Corals > Reef monitoring and assessment > Rapid assessment studies",
  "EARTH SCIENCE > Oceans > Coastal Processes > Coral Reefs",
  "EARTH SCIENCE > Oceans > Coastal Processes > Coral Reefs > Coral Reef Ecology",
  "EARTH SCIENCE > Oceans > Coastal Processes > Coral Reefs > Coral Reef Ecology > Benthic biology",
  "EARTH SCIENCE > Oceans > Marine Biology > Coral",
  "EARTH SCIENCE > Oceans > Marine Biology > Coral Communities",
  "HABITAT - BENTHIC",
  "PHOTOQUADRAT IMAGES",
  "coral",
  "biological",
  "imagery",
  "in situ",
  "CORAL REEF STUDIES",
  "Coral Reef Conservation Program",
  "National Coral Reef Monitoring Program",
  "Pacific Reef and Assessment Monitoring Program",
  "US DOC; NOAA; NMFS; Pacific Islands Fisheries Science Center; Ecosystem Sciences Division",
  "COUNTRY/TERRITORY > Northern Mariana Islands > Agrihan Island > Agrihan Island (18N145E0002)",
  "COUNTRY/TERRITORY > Northern Mariana Islands > Aguijan > Aguijan Island (14N145E0006)",
  "COUNTRY/TERRITORY > Northern Mariana Islands > Alamagan Island > Alamagan Island (17N145E0002)",
  "COUNTRY/TERRITORY > Northern Mariana Islands > Asuncion Island > Asuncion Island (19N145E0001)",
  "COUNTRY/TERRITORY > Northern Mariana Islands > Farallon de Pajaros > Farallon de Pajaros (12N144E0001)",
  "COUNTRY/TERRITORY > Northern Mariana Islands > Guguan > Guguan Island (17N145E0001)",
  "COUNTRY/TERRITORY > Northern Mariana Islands > Maug > Maug Island (20N145E0001)",
  "COUNTRY/TERRITORY > Northern Mariana Islands > Northern Mariana Islands > Northern Mariana Islands ( CNMI ) (18N146E0000)",
  "COUNTRY/TERRITORY > Northern Mariana Islands > Pagan > Pagan Island (18N145E0001)",
  "COUNTRY/TERRITORY > Northern Mariana Islands > Rota > Rota Island ( Luta ) (14N145E0007)",
  "COUNTRY/TERRITORY > Northern Mariana Islands > Saipan > Saipan Island (15N145E0002)",
  "COUNTRY/TERRITORY > Northern Mariana Islands > Sarigan Island > Sarigan Island (16N145E0003)",
  "COUNTRY/TERRITORY > Northern Mariana Islands > Tinian > Tinian Island (14N145E0005)",
  "COUNTRY/TERRITORY > United States of America > American Samoa > American Samoa > American Samoa (14S170W0000)",
  "COUNTRY/TERRITORY > United States of America > American Samoa > American Samoa > Ofu Island (14S169W0013)",
  "COUNTRY/TERRITORY > United States of America > American Samoa > American Samoa > Olosega Island (14S169W0014)",
  "COUNTRY/TERRITORY > United States of America > American Samoa > American Samoa > Rose Atoll (14S168W0001)",
  "COUNTRY/TERRITORY > United States of America > American Samoa > American Samoa > Swains Atoll (11S171W0001)",
  "COUNTRY/TERRITORY > United States of America > American Samoa > American Samoa > Ta'u Island (14S169W0012)",
  "COUNTRY/TERRITORY > United States of America > American Samoa > American Samoa > Tutuila Island (14S170W0016)",
  "COUNTRY/TERRITORY > United States of America > American Samoa > Ofu Island > Ofu (14S169W0002)",
  "COUNTRY/TERRITORY > United States of America > American Samoa > Olosega Island > Olosega (14S169W0016)",
  "COUNTRY/TERRITORY > United States of America > Guam > Guam (13N144E0000)",
  "COUNTRY/TERRITORY > United States of America > Hawaii > Hawaii > Hawaii (21N160W0000)",
  "COUNTRY/TERRITORY > United States of America > Hawaii > Hawaii > Hawaii Island (19N155W0003)",
  "COUNTRY/TERRITORY > United States of America > Hawaii > Hawaii > Kauai Island (22N159W0001)",
  "COUNTRY/TERRITORY > United States of America > Hawaii > Hawaii > Molokai Island (21N157W0001)",
  "COUNTRY/TERRITORY > United States of America > Hawaii > Honolulu > French Frigate Shoals (24N166W0001)",
  "COUNTRY/TERRITORY > United States of America > Hawaii > Honolulu > Kure Atoll (28N178W0001)",
  "COUNTRY/TERRITORY > United States of America > Hawaii > Honolulu > Lisianski Island (25N173W0001)",
  "COUNTRY/TERRITORY > United States of America > Hawaii > Honolulu > Northwestern Hawaiian Islands (28N178W0000)",
  "COUNTRY/TERRITORY > United States of America > Hawaii > Honolulu > Oahu (21N157W0003)",
  "COUNTRY/TERRITORY > United States of America > Hawaii > Honolulu > Pearl and Hermes Reef (27N176W0001)",
  "COUNTRY/TERRITORY > United States of America > Hawaii > Kauai > Niihau Island (21N160W0001)",
  "COUNTRY/TERRITORY > United States of America > Hawaii > Maui > Lanai Island (20N156W0002)",
  "COUNTRY/TERRITORY > United States of America > Hawaii > Maui > Maui Island (20N156W0004)",
  "COUNTRY/TERRITORY > United States of America > Hawaiian Islands (21N157W0027)",
  "COUNTRY/TERRITORY > United States of America > USA Minor Outlying Islands > Howland Island (00S176W0001)",
  "OCEAN BASIN > Pacific Ocean > American Samoa > American Samoa (14S170W0000)",
  "OCEAN BASIN > Pacific Ocean > American Samoa > Rose Atoll (14S168W0001)",
  "OCEAN BASIN > Pacific Ocean > American Samoa > Swains Atoll (11S171W0001)",
  "OCEAN BASIN > Pacific Ocean > American Samoa > Tutuila Island (14S170W0016)",
  "OCEAN BASIN > Pacific Ocean > Central Pacific Ocean > Hawaiian Islands (21N157W0027)",
  "OCEAN BASIN > Pacific Ocean > Central Pacific Ocean > Hawaiian Islands > Hawaii > Hawaii (21N160W0000)",
  "OCEAN BASIN > Pacific Ocean > Central Pacific Ocean > Hawaiian Islands > Hawaii Island > Hawaii Island (19N155W0003)",
  "OCEAN BASIN > Pacific Ocean > Central Pacific Ocean > Hawaiian Islands > Kauai Island > Kauai Island (22N159W0001)",
  "OCEAN BASIN > Pacific Ocean > Central Pacific Ocean > Hawaiian Islands > Lanai Island > Lanai Island (20N156W0002)",
  "OCEAN BASIN > Pacific Ocean > Central Pacific Ocean > Hawaiian Islands > Maui Island > Maui Island (20N156W0004)",
  "OCEAN BASIN > Pacific Ocean > Central Pacific Ocean > Hawaiian Islands > Molokai Island > Molokai Island (21N157W0001)",
  "OCEAN BASIN > Pacific Ocean > Central Pacific Ocean > Hawaiian Islands > Niihau Island > Niihau Island (21N160W0001)",
  "OCEAN BASIN > Pacific Ocean > Central Pacific Ocean > Hawaiian Islands > Oahu Island > Oahu (21N157W0003)",
  "OCEAN BASIN > Pacific Ocean > Central Pacific Ocean > Northwestern Hawaiian Islands (28N178W0000)",
  "OCEAN BASIN > Pacific Ocean > Central Pacific Ocean > Northwestern Hawaiian Islands > French Frigate Shoals (24N166W0001)",
  "OCEAN BASIN > Pacific Ocean > Central Pacific Ocean > Northwestern Hawaiian Islands > Kure Atoll (28N178W0001)",
  "OCEAN BASIN > Pacific Ocean > Central Pacific Ocean > Northwestern Hawaiian Islands > Lisianski Island (25N173W0001)",
  "OCEAN BASIN > Pacific Ocean > Central Pacific Ocean > Northwestern Hawaiian Islands > Pearl and Hermes Reef (27N176W0001)",
  "OCEAN BASIN > Pacific Ocean > Manu'a Group > Ofu (14S169W0002)",
  "OCEAN BASIN > Pacific Ocean > Manu'a Group > Ofu Island (14S169W0013)",
  "OCEAN BASIN > Pacific Ocean > Manu'a Group > Olosega (14S169W0016)",
  "OCEAN BASIN > Pacific Ocean > Manu'a Group > Olosega Island (14S169W0014)",
  "OCEAN BASIN > Pacific Ocean > Manu'a Group > Ta'u Island (14S169W0012)",
  "OCEAN BASIN > Pacific Ocean > Western Pacific Ocean > Agrihan Island > Agrihan Island (18N145E0002)",
  "OCEAN BASIN > Pacific Ocean > Western Pacific Ocean > Aguijan Island Reefs > Aguijan Island (14N145E0006)",
  "OCEAN BASIN > Pacific Ocean > Western Pacific Ocean > Alamagan Island > Alamagan Island (17N145E0002)",
  "OCEAN BASIN > Pacific Ocean > Western Pacific Ocean > Asuncion Island > Asuncion Island (19N145E0001)",
  "OCEAN BASIN > Pacific Ocean > Western Pacific Ocean > Farallon de Pajaros > Farallon de Pajaros (12N144E0001)",
  "OCEAN BASIN > Pacific Ocean > Western Pacific Ocean > Guam > Guam (13N144E0000)",
  "OCEAN BASIN > Pacific Ocean > Western Pacific Ocean > Guguan Island > Guguan Island (17N145E0001)",
  "OCEAN BASIN > Pacific Ocean > Western Pacific Ocean > Mariana Archipelago > Northern Mariana Islands ( CNMI ) (18N146E0000)",
  "OCEAN BASIN > Pacific Ocean > Western Pacific Ocean > Maug Island > Maug Island (20N145E0001)",
  "OCEAN BASIN > Pacific Ocean > Western Pacific Ocean > Pagan Island > Pagan Island (18N145E0001)",
  "OCEAN BASIN > Pacific Ocean > Western Pacific Ocean > Rota Island > Rota Island ( Luta ) (14N145E0007)",
  "OCEAN BASIN > Pacific Ocean > Western Pacific Ocean > Saipan Island > Saipan Island (15N145E0002)",
  "OCEAN BASIN > Pacific Ocean > Western Pacific Ocean > Sarigan Island > Sarigan Island (16N145E0003)",
  "OCEAN BASIN > Pacific Ocean > Western Pacific Ocean > Tinian Island Reefs > Tinian Island (14N145E0005)",
  "Equatorial Pacific Ocean",
  "Marianas Trench Marine National Monument",
  "NW Pacific (limit-180)",
  "North Pacific Ocean",
  "Pacific Remote Islands Marine National Monument",
  "Papahanaumokuakea Marine National Monument",
  "Rose Atoll Marine National Monument",
  "South Pacific Ocean",
  "camera",
  "HI'IALAKAI",
  "OSCAR ELTON SETTE",
  "Rainier",
  "CRED",
  "CREP",
  "Coral Reef Ecosystem Division",
  "Coral Reef Ecosystem Program",
  "ESD",
  "Ecosystem Sciences Division",
  "PIFSC",
  "Pacific Islands Fisheries Science Center",
  "RAMP",
  "Reef Assessment and Monitoring Program",
  "Triennial",
  "American Samoa",
  "CNMI",
  "COUNTRY/TERRITORY > United States of America > USA Minor Outlying Islands > Jarvis Island (00S160W0001)",
  "COUNTRY/TERRITORY > United States of America > USA Minor Outlying Islands > Johnston Atoll (16N169W0001)",
  "COUNTRY/TERRITORY > United States of America > USA Minor Outlying Islands > Kingman Reef (06N162W0001)",
  "COUNTRY/TERRITORY > United States of America > USA Minor Outlying Islands > Palmyra Atoll (05N162W0001)",
  "COUNTRY/TERRITORY > United States of America > USA Minor Outlying Islands > Wake Atoll (19N167E0001)",
  "Commonwealth of the Northern Mariana Islands",
  "MHI",
  "Main Hawaiian Islands",
  "Mariana Archipelago",
  "Mariana Islands",
  "Marianas",
  "NWHI",
  "Northwestern Hawaiian Islands",
  "OCEAN BASIN > Pacific Ocean > Central Pacific Ocean > Baker Island > Baker Island (00N176W0001)",
  "OCEAN BASIN > Pacific Ocean > Central Pacific Ocean > Howland Island > Howland Island (00S176W0001)",
  "OCEAN BASIN > Pacific Ocean > Central Pacific Ocean > Johnston Atoll > Johnston Atoll (16N169W0001)",
  "OCEAN BASIN > Pacific Ocean > Central Pacific Ocean > Line Islands > Jarvis Island (00S160W0001)",
  "OCEAN BASIN > Pacific Ocean > Central Pacific Ocean > Line Islands > Kingman Reef (06N162W0001)",
  "OCEAN BASIN > Pacific Ocean > Central Pacific Ocean > Line Islands > Palmyra Atoll (05N162W0001)",
  "OCEAN BASIN > Pacific Ocean > Central Pacific Ocean > Wake Atoll > Wake Atoll (19N167E0001)",
  "PRIA",
  "PRIMNM",
  "Pacific Remote Island Areas",
  "Rose Atoll Marine National Monument",
  "DOC/NOAA/NMFS/PIFSC > Pacific Islands Fisheries Science Center, National Marine Fisheries Service, NOAA, U.S. Department of Commerce",
  "Pacific-wide Benthic"
]
landingPage https://www.fisheries.noaa.gov/inport/item/71814
language 
[]
license https://creativecommons.org/publicdomain/zero/1.0/
modified 2026-08-28T22:22:34.000+00:00
publisher 
{
  "name": "Pacific Islands Fisheries Science Center",
  "@type": "org:Organization"
}
rights otherRestrictions, unclassified
spatial 145.852711,13.22889458,144.634585,20.554051
temporal 2010-01-01T00:00:00+00:00/2025-01-01T00:00:00+00:00
theme 
[
  "geospatial"
]
title National Coral Reef Monitoring Program: Benthic Images Collected from Stratified Random Sites (StRS) across the US Pacific since 2010

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