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Benthic percent cover derived from analysis of benthic images collected at coral reef sites in Timor-Leste in 2013 and 2014 (NCEI Accession 0168620)
The benthic cover data described here result from benthic photo-quadrat surveys conducted by the NOAA Coral Reef Ecosystem Program (CREP) in hard bottom shallow water (< 15 m) habitats in Timor-Leste during reef fish surveys surveys at 150 sites that were selected using a stratified random sampling design in June 2013, and along transects at fixed climate survey sites in September-October 2014 (10 sites and 8 sites, respectively). Climate sites were established by CREP to establish ecological baselines for climate change by measuring multiple features of the coral reef environment (in addition to the data described herein) over time. The reef fish surveys were conducted to generate baseline data on the nearshore coral reef fish assemblages and associated benthic communities around Timor-Leste's north coast and Atauro Island. Percent benthic cover for each site is estimated from a photo-transect (30 photographs, taken at 1-m intervals, 10+ points analyzed per photograph using Coral Point Count with Extensions). NA values represent situations where images were either not gathered or not analyzed. These benthic cover data for Timor-Leste provide an estimate of the benthic community composition at each survey site, and give context to the results from the other survey components. The benthic images, and the associated reef fish survey data and parameters measured to establish ecological baselines for climate change are documented separately.
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Benthic percent cover derived from photoquadrat images taken along fixed transect sites around Hawaii Island from 2022-06-06 to 2022-09-15 (NCEI Accession 0288837)
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The State of Hawaii DLNR (Department of Land and Natural Resources) DAR (Division of Aquatic Resources) marine monitoring team conducted surveys for benthic monitoring at 6 locations around Hawaii Island. At the 6 locations, one deep (10 meter) and one shallow (3 meter) site was surveyed through benthic photo quad image collection along 10 fixed transects. These permanent monitoring sites were established as part of the Coral Reef Assessment and Monitoring Program (CRAMP). Sites were paired to represent the shallow and deep habitat at each location. Twenty-five random points were overlaid on each image in CoralNet (coralnet.ucsd.edu) and were annotated by staff members to obtain data for percent cover of benthic taxa.
Coral Reef Health Broadscale Survey - Reef Benthic Survey: Benthic Cover(%) From Photo Transects 2013-2016
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Coral reef survey of benthic cover, between northern Ningaloo and the Dampier Archipelago. The data include Benthic Cover (%) of benthic life forms on 25m transects, derived from point intercept data taken from transect images. Attributes: COLUMN_NAME COMMENTS YEAR_SAMPLED — Year that site was analysed for habitat cover SITE_ID — Site identifier (Site was photographed and analysed for habitat percent cover) REEF_NAME — Name of reef site is associated with FACIES — Used to describe the part of the reef that the site represents e.g. reef slope, reef flat NO_TAKE — Is the site in a non-fishing zone (based on Marine Park Zoning) or not (Y/N: Y => Non-Fishing Zone, N=>Site is fished) LAT — Site Latitude LON — Site Longitude BROADGROUP — Broadgroup classification of benthic cover SUBGROUP — Subgroup classification of benthic cover PERCENT_COVER — Percent cover of subgroup habitat for the site in the year sampled
Benthic Surveys in Faga'alu, American Samoa: benthic cover derived from analysis of benthic images collected during belt transect surveys of coral demography from 2020-01-15 to 2020-01-24 (NCEI Accession 0259709)
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The benthic cover data described herein were generated by the NOAA Ecosystem Sciences Division (former Coral Reef Ecosystem Program, CREP) from the quantitative analysis of photoquadrat benthic images using the image analysis software CoralNet, whereby random points are projected on each image and the benthic elements falling directly underneath each point are identified. The images were collected at sites in Faga'alu Bay in 2020 during belt transect surveys of coral demography. The data can be accessed online via the NOAA National Centers for Environmental Information (NCEI) Ocean Archive. The source imagery for this dataset are archived separately and accessible on NCEI.