National Coral Reef Monitoring Program: Benthic Images Collected from Stratified Random Sites (StRS) across American Samoa since 2015

Description

The data described here are benthic habitat imagery that result from benthic photo-quadrat surveys conducted along transects at stratified random sites across American Samoa since 2014 as a part of Rapid Ecological Assessment (REA) surveys for corals and fish.

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.

Resources

Name Format Description Link
NCRMP_STRS_SITEINFO_SAMOA_2023.csv Unknown 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) Open resource
NCRMP_STRS_IMAGES_SAMOA_2023 Unknown Photoquadrat benthic images collected at stratified random sites across American Samoa in 2023 by the PIFSC Ecosystem Sciences Division (ESD) Open resource
PIFSC_NTM-PIFSC-71_2018_SOP_Benthic.pdf Unknown SOP that describes method to collect benthic images during the surveys. Open resource
StR Images SAMOA 2015 Unknown Photoquadrat benthic images collected at stratified random sites across American Samoa in 2015 by the NOAA Coral Reef Ecosystem Program (CREP) Open resource
Site Info SAMOA 2015.csv Unknown Metadata (site, date, and location) for photoquadrat benthic images collected at stratified random sites across American Samoa in 2015 by the NOAA Coral Reef Ecosystem Program (CREP) Open resource
Site Info SAMOA 2018.csv Unknown Metadata (site, date, and location) for photoquadrat benthic images collected at stratified random sites across American Samoa in 2018 during mission HA1801 by the PIFSC Ecosystem Sciences Division. Open resource
StR Images SAMOA 2018 Unknown Photoquadrat benthic images collected at stratified random sites across American Samoa in 2018 by the PIFSC Ecosystem Sciences Division (ESD). Open resource
National Coral Reef Monitoring Program Unknown NOAA National Coral Reef Monitoring Program (NCRMP) website. Open resource
Global Change Master Directory (GCMD) Keywords Unknown The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. Open resource
Full Metadata Record Unknown View the complete metadata record on InPort for more information about this dataset. Open resource
NOAA Data Management Plan (DMP) PDF NOAA Data Management Plan for this record on InPort. Open resource
PIFSC ESD: Coral Reefs in the Pacific Unknown Overview of NOAA Ecosystem Sciences Division, Archipelagic Research Program's methods to assess corals. Open resource
Pacific Islands Fisheries Science Center Website Unknown Pacific Island Fisheries Science Center homepage Open resource
Ecosystem Sciences Division Unknown NOAA Fisheries, Pacific Islands Fisheries Science Center website Open resource

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