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Pacific Reef Assessment and Monitoring Program: Stratified random surveys (StRS) of coral demography and condition across the Northwestern Hawaiian Islands from 2007-09-21 to 2012-08-19 (NCEI Accession 0184869)

The data described here result from benthic coral demographic surveys across the Northwestern Hawaiian Islands from September 21, 2007 to August 19, 2012. Sites were surveyed using belt transects to collect adult coral colony metrics, including colony size, partial mortality in two categories - old dead and recent dead, and non-lesion forming condition including bleaching and disease.

A two-stage stratified random sampling (StRS) design was employed to survey the coral reef ecosystems throughout 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. 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.

The data were collected as part of Papahānaumokuākea Marine National Monument funded research cruises to the Northwestern Hawaiian Islands in 2007, 2009, 2011 and 2012. These data were funded separately from but are complementary to coral demographic data collected during NOAA's Pacific Reef Assessment and Monitoring Program (Pacific RAMP) missions led by the NOAA Pacific Islands Fisheries Science Center (PIFSC), Ecosystem Sciences Division (formerly the Coral Reef Ecosystem Division) across the Pacific Islands Region from 2008 to 2012.

About this Dataset

Updated: 2024-02-22
Metadata Last Updated: 2025-11-19T16:06:36.440Z
Date Created: N/A
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Dataset Owner: N/A

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Title Pacific Reef Assessment and Monitoring Program: Stratified random surveys (StRS) of coral demography and condition across the Northwestern Hawaiian Islands from 2007-09-21 to 2012-08-19 (NCEI Accession 0184869)
Description The data described here result from benthic coral demographic surveys across the Northwestern Hawaiian Islands from September 21, 2007 to August 19, 2012. Sites were surveyed using belt transects to collect adult coral colony metrics, including colony size, partial mortality in two categories - old dead and recent dead, and non-lesion forming condition including bleaching and disease. A two-stage stratified random sampling (StRS) design was employed to survey the coral reef ecosystems throughout 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. 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. The data were collected as part of Papahānaumokuākea Marine National Monument funded research cruises to the Northwestern Hawaiian Islands in 2007, 2009, 2011 and 2012. These data were funded separately from but are complementary to coral demographic data collected during NOAA's Pacific Reef Assessment and Monitoring Program (Pacific RAMP) missions led by the NOAA Pacific Islands Fisheries Science Center (PIFSC), Ecosystem Sciences Division (formerly the Coral Reef Ecosystem Division) across the Pacific Islands Region from 2008 to 2012.
Modified 2025-11-19T16:06:36.440Z
Publisher Name N/A
Contact N/A
Keywords 0184869 , biological data , CORAL , CORAL - CENSUS , CORAL - COLONY SIZE , CORAL - SPECIES IDENTIFICATION , swimmer/diver , visual observation , biological , in situ , survey , survey - biological , survey - coral reef , survey - swimmer/diver , NOAA Ship Hi'ialakai , NOAA Pacific Islands Fisheries Science Center, Ecosystem Sciences Division , NOAA Pacific Islands Fisheries Science Center, Ecosystem Sciences Division , Coral Reef Conservation Program (CRCP) , CORAL REEF STUDIES , Pacific Reef and Assessment Monitoring Program (Pacific RAMP) , North Pacific Ocean , oceanography , CRED , CREP , Coral Reef Ecosystem Division , Coral Reef Ecosystem Program , PIFSC , Pacific Islands Fisheries Science Center , DOC/NOAA/NMFS/PIFSC/ESD > Ecosystem Sciences Division, Pacific Islands Fisheries Science Center, National Marine Fisheries Service, NOAA, U.S. Department of Commerce , RAMP , Reef Assessment and Monitoring Program , Numeric Data Sets > Biology , EARTH SCIENCE > Biosphere > Ecological Dynamics > Species Richness , EARTH SCIENCE > Biosphere > Zoology > Corals > Reef Monitoring and Assessment , EARTH SCIENCE > Biosphere > Zoology > Corals > Reef Monitoring and Assessment > Coral Colony Size and Condition , 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 > BioDiversity , EARTH SCIENCE > Oceans > Coastal Processes > Coral Reefs > Coral Reef Ecology > Coral Cover , EARTH SCIENCE > Oceans > Marine Biology > Coral , EARTH SCIENCE > Oceans > Marine Biology > Coral Communities , EARTH SCIENCE > BIOLOGICAL CLASSIFICATION , EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > MARINE ECOSYSTEMS > REEF > CORAL REEF , EARTH SCIENCE > SOLID EARTH > GEOMORPHIC LANDFORMS/PROCESSES > COASTAL LANDFORMS > CORAL REEFS , Coral Belt Survey , Coral Disease , REA , Rapid Ecological Assessments , belt transect , VISUAL OBSERVATIONS > VISUAL OBSERVATIONS , Ships , Hi'ialakai (call sign: WTEY, ICES code: 33HL, 2004-) , COUNTRY/TERRITORY > United States of America > Hawaii > Honolulu > Northwestern Hawaiian Islands (28N178W0000) , OCEAN BASIN > Pacific Ocean > Central Pacific Ocean > Northwestern Hawaiian Islands (28N178W0000) , OCEAN > PACIFIC OCEAN > NORTH PACIFIC OCEAN , NWHI , Northwestern Hawaiian Islands , Papahanaumokuakea Marine National Monument , Triennial , JT4Y37 , environment , oceans , biota
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