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OAS accession Detail for 0204646
| << previous | |revision: 6 |
| accessions_id: | 0204646 | archive |
|---|---|
| Title: | Benthic cover from automated annotation of benthic images collected at coral reef sites in the Pacific Remote Island Areas and American Samoa from 2018-06-08 to 2018-08-11 (NCEI Accession 0204646) |
| Abstract: | The coral reef benthic community data described here result from the automated annotation (classification) of benthic images collected during photoquadrat surveys conducted by the NOAA Pacific Islands Fisheries Science Center (PIFSC), Ecosystem Sciences Division (ESD, formerly the Coral Reef Ecosystem Division) as part of NOAA's ongoing National Coral Reef Monitoring Program (NCRMP). SCUBA divers conducted benthic photoquadrat surveys in coral reef habitats according to protocols established by ESD and NCRMP during the ESD-led NCRMP mission to the islands and atolls of the Pacific Remote Island Areas (PRIA) and American Samoa from June 8 to August 11, 2018. Still photographs were collected with a high-resolution digital camera mounted on a pole to document the benthic community composition at predetermined points along transects at stratified random sites surveyed only once as part of Rapid Ecological Assessment (REA) surveys for corals and fish (Ayotte et al. 2015; Swanson et al. 2018) and permanent sites established by ESD and resurveyed every ~3 years for climate change monitoring. Overall, 30 photoquadrat images were collected at each survey site. The benthic habitat images were quantitatively analyzed using the web-based, machine-learning, image annotation tool, CoralNet (https://coralnet.ucsd.edu; Beijbom et al. 2015; Williams et al. 2019). Ten points were randomly overlaid on each image and the machine-learning algorithm "robot" identified the organism or type of substrate beneath, with 300 annotations (points) generated per site. Benthic elements falling under each point were identified to functional group (Tier 1: hard coral, soft coral, sessile invertebrate, macroalgae, crustose coralline algae, and turf algae) for coral, algae, invertebrates, and other taxa following Lozada-Misa et al. (2017). These benthic data can ultimately be used to produce estimates of community composition, relative abundance (percentage of benthic cover), and frequency of occurrence. |
| Date received: | 20191003 |
| Start date: | 20180608 |
| End date: | 20180811 |
| Seanames: | National Marine Sanctuary of American Samoa, North Pacific Ocean, Rose Atoll Marine National Monument, South Pacific Ocean |
| West boundary: | -176.626077 |
| East boundary: | -159.971695 |
| North boundary: | 6.451465 |
| South boundary: | -14.558022 |
| Observation types: | benthic, biological |
| Instrument types: | photograph |
| Datatypes: | HABITAT - BENTHIC |
| Submitter: | |
| Submitting institution: | US DOC; NOAA; NMFS; Pacific Islands Fisheries Science Center; Ecosystem Sciences Division |
| Collecting institutions: | US DOC; NOAA; NMFS; Pacific Islands Fisheries Science Center; Ecosystem Sciences Division |
| Contributing projects: | CORAL REEF STUDIES, CRCP, NCRMP, Pacific RAMP |
| Platforms: | Hi'ialakai (33HL) |
| Number of observations: | |
| Supplementary information: | Submission Package ID: GDG2XL |
| Availability date: | |
| Metadata version: | 6 |
| Keydate: | 2019-10-08 18:15:05+00 |
| Editdate: | 2019-10-24 16:11:54+00 |