National Coral Reef Monitoring Program: Stratified Random Surveys (StRS) of Coral Demography (Adult and Juvenile Corals) across the Hawaiian Archipelago since 2013

NCRMP CORAL DEMOGRAPHIC DATA HAS NOW BEEN MERGED INTO A PACIFIC-WIDE METADATA RECORD -- PLEASE REFER TO https://www.fisheries.noaa.gov/inport/item/71550 FOR MOST UPDATED DATA.

The data described here result from benthic coral demographic surveys within belt transects of specified length and width for two life stages (juveniles and adults) across the Hawaiian archipelago since 2013. The data provide information on adult coral colony counts, morphology, size, partial mortality (old and recent dead), presence and causation of disease and other compromised health conditions, including bleaching. Juvenile colony surveys include morphology and size. Taxonomic identification of adult colonies is to the species level and genus level for juveniles.

A two-stage stratified random sampling (StRS) design was employed to survey the coral reef ecosystems of the Hawaiian archipelago in 2013, 2016, and 2017 and starting in 2019 a one-stage StRS design was employed. The survey domain encompassed the majority of the mapped area of reef and hard bottom habitats in the 0ÃÂ¢ÃÂÃÂ30 m depth range. The stratification scheme included island, reef zone, and depth (i.e., shallow: >0ÃÂ¢ÃÂÃÂ6 m; mid-depth: >6ÃÂ¢ÃÂÃÂ18 m; and deep: >18ÃÂ¢ÃÂÃÂ30 m), habitat structure type, as well as reef zone (i.e., forereef, backreef, lagoon, and protected slope; the latter three only in the Northwestern Hawaiian Islands). Sampling effort allocation was determined based on strata area and sites randomly located within strata. The StRS design effectively reduces estimate variance through stratification using environmental covariates and by sampling more sites rather than more transects per site. Therefore, site-level estimates and site-to-site comparisons should proceed with caution.

The data were collected as part of the NOAA Pacific Islands Fisheries Science Center (PIFSC) and Ecosystem Sciences Division (ESD; formerly the Coral Reef Ecosystem Division) led National Coral Reef Monitoring Program (NCRMP) missions around the Main Hawaiian Islands in 2013, 2016 and 2019, and the Northwestern Hawaiian Islands in 2016. Data collected as part of the 2014 and 2015 PapahÃÂÃÂnaumokuÃÂÃÂkea Marine National Monument funded research cruises in the Northwestern Hawaiian Islands are also included. The latter are funded separately but are complementary to the ESD NCRMP-funded data.

Tags: 743, belt transect, biodiversity, biology, biosphere, central pacific ocean, coastal processes, coral, coral - colony size, coral - species identification, coral belt survey, coral colony size and condition, coral communities, coral disease, coral reef conservation program, coral reef ecology, coral reef ecosystem division, coral reef ecosystem program, coral reef studies, coral reefs, corals, country/territory, cred, crep, doc/noaa/nmfs/pifsc, earth science, ecological dynamics, ecosystem sciences division, esd, french frigate shoals (24n166w0001), hawaii, hawaii (21n160w0000), hawaii island, hawaii island (19n155w0003), hawaiian archipelago, hawaiian islands, hawaiian islands (21n157w0027), hi'ialakai, honolulu, kauai, kauai island, kauai island (22n159w0001), kure atoll (28n178w0001), lanai island, lanai island (20n156w0002), laysan island (25n171w0001), lisianski island (25n173w0001), main hawaiian islands, marine biology, maro reef (25n170w0001), maui, maui island, maui island (20n156w0004), mhi, midway atoll (28n177w0001), molokai island, molokai island (21n157w0001), national coral reef monitoring program, national coral reef monitoring program (ncrmp), national marine fisheries service, niihau island, niihau island (21n160w0001), nmfs, noaa, north pacific ocean, northwestern hawaiian islands, numeric data sets, nwhi, oahu (21n157w0003), oahu island, ocean basin, oceans, oscar elton sette, pacific islands fisheries science center, pacific ocean, papahanaumokuakea marine national monument, pearl and hermes reef (27n176w0001), pifsc, pmnm, ramp, rapid assessment studies, rapid ecological assessment, rea, reef assessment and monitoring program, reef monitoring and assessment, species richness, survey, survey - biological, survey - swimmer/diver, u.s. department of commerce, united states of america, us doc, zoology
Organization: National Oceanic and Atmospheric Administration, Department of Commerce