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OAS accession Detail for 0287050, meta_version: 3. Current meta_version is: 5
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Title: National Coral Reef Monitoring Program: Bioerosion Monitoring Unit Data from BMUs deployed at coral reef sites in Flower Garden Banks National Marine Sanctuary, Florida Keys, Puerto Rico, and St. Croix, St. Thomas, St. John USVI from 2017-06-16 to 2023-01-11 (NCEI Accession 0287050)
Abstract: Ocean Acidification (OA) is expected to reduce the calcification rates of marine organisms, yet we have little understanding of how OA will manifest within dynamic, real-world systems, nor how to accurately measure said manifestation. The term bioerosion refers to the biological destruction of hard structures, such as coral skeletons. On coral reefs, this process is the antithesis of coral calcification. If rates of bioerosion are higher than calcification, healthy reef habitats can erode into rubble and sand.

The erosion rates provided in this dataset were collected from bioerosion monitoring units (BMUs) retrieved at existing long-term monitoring sites during NOAA Atlantic Oceanographic and Meteorological Laboratory (AOML) Coral Program led NCRMP missions in Flower Garden Banks National Marine Sanctuary, Florida Keys and Salt River, St. Croix, USVI. Contractors led missions to Puerto Rico, St. Thomas and St. John. This data is collected as part of the NOAA's National Coral Reef Monitoring Program (NCRMP). BMUs are constructed from clean coral skeletons and left on the reef for a period of 3 years.

BMUs are CT scanned for changes in density, volume and mass in which rates of bioerosion can be assessed using Amira analysis software (FEI). Annual erosion and accretion rates can be determined from these data in terms of loss of reef structure volume as well as mass in grams of calcium carbonate. Accretion rates given in this data set were determined by finding the volume of non-original carbonate material found on the external surface of the BMUs divided by the number of years the BMU was deployed on the reef. These rates can detect accretion signals when calcifying organisms, such as corals or algae, have grown on their exteriors. Rates of macroboring were determined by changes in the internal volume of the BMUs (e.g., that removed by bore holes) divided by the number of years the BMU was deployed on the reef. Macroboring can occur from eroders such as, clionaid sponges, annelids and other macroboring fauna.

The COVID-19 pandemic delayed field operations which caused extended deployment time periods for some BMUs. Due to CT machine technical difficulties. No prescan information is available for BMUs deployed in Puerto Rico, St. Thomas and St. John.
Date received: 20231222
Start date: 20170616
End date: 20230111
Seanames:
West boundary: -93.59925
East boundary: -64.46711
North boundary: 27.9074
South boundary: 17.70121
Observation types:
Instrument types:
Datatypes:
Submitter: Besemer, Nicole
Submitting institution: US DOC; NOAA; OAR; Atlantic Oceanographic and Meteorological Laboratory
Collecting institutions:
Contributing projects:
Platforms:
Number of observations:
Supplementary information: Submission Package ID: 0XKRCH
Availability date:
Metadata version: 3
Keydate: 2024-01-10 14:00:32+00
Editdate: 2024-01-22 15:35:54+00