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Calcification rates of crustose coralline algae (CCA) derived from calcification accretion units (CAUs) deployed at coral reef sites in Timor-Leste from 2012-10-15 to 2014-10-09 (NCEI Accession 0170031)

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The calcification rate data described here were collected by the NOAA Coral Reef Ecosystem Program (CREP) from calcification accretion units, or CAUs, moored for two years at fixed climate survey sites and located on hard bottom shallow water (< 15 m) habitats in Timor-Leste, in accordance with protocols developed by Price et al. (2012). Five CAUs were deployed at each survey site. Climate sites were established in Timor-Leste by CREP in October 2012 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.

CAUs, constructed in-house by CREP, are composed of two 10 x 10 cm flat, square, gray PVC plates, stacked 1 cm apart, and are attached to the benthos by SCUBA divers using stainless steel threaded rods. Deployed on the seafloor for a period of time, calcareous organisms, primarily crustose coralline algae and encrusting corals, recruit to these plates and accrete/calcify carbonate skeletons over time. By measuring the change in weight of the CAUs, the reef carbonate accretion rate can be calculated for that time period, measured in grams per centimeter per year.

Laboratory experiments reveal calcification rates of crustose coralline algae (CCA) are strongly correlated to seawater aragonite saturation state. Predictions of reduced coral calcification rates, due to ocean acidification, suggest that coral reef communities will undergo ecological phase shifts as calcifying organisms are negatively impacted by changing seawater chemistry. CAUs are used by CREP to assess the current effects of changes in seawater carbonate chemistry on calcification and accretion rates of calcareous and fleshy algae.

These calcification rate data for Timor-Leste, along with other data collected at the climate survey sites (water temperature and chemistry, invertebrate biodiversity, and benthic cover, all archived separately), serve as a baseline for detecting changes associated with changing seawater chemistry and can be used to help scientists assess and understand how Timor-Leste's coral reefs are responding to ocean acidification.
  • Cite as: Coral Reef Ecosystem Program; Pacific Islands Fisheries Science Center (2018). Calcification rates of crustose coralline algae (CCA) derived from calcification accretion units (CAUs) deployed at coral reef sites in Timor-Leste from 2012-10-15 to 2014-10-09 (NCEI Accession 0170031). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0170031. Accessed [date].
gov.noaa.nodc:0170031
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Distributor NOAA National Centers for Environmental Information
+1-301-713-3277
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Dataset Point of Contact NOAA National Centers for Environmental Information
ncei.info@noaa.gov
Time Period 2012-10-15 to 2014-10-09
Spatial Bounding Box Coordinates
West: 125.013
East: 127.312
South: -8.85329
North: -8.22441
Spatial Coverage Map
General Documentation
Associated Resources
Publication Dates
  • publication: 2018-01-27
  • revision: 2022-08-31
Data Presentation Form Digital table - digital representation of facts or figures systematically displayed, especially in columns
Dataset Progress Status Complete - production of the data has been completed
Historical archive - data has been stored in an offline storage facility
Data Update Frequency As needed
Supplemental Information
Submission Package ID: 1X2365
Purpose In 2011, NOAA and the United States Agency for International Development (USAID) Timor-Leste Mission formed a 5-year bi-lateral partnership agreement from 2012 to 2016, in support of the Government of Timor-Leste—particularly the Ministry of Agriculture and Fisheries (MAF)—by addressing significant information gaps in their nearshore marine ecosystems. Specifically, MAF asked NOAA to address the following questions: 1. Where are the nearshore marine resources? 2. What are the nearshore marine resources? 3. How are they changing over time and what threats are potentially causing these changes? 4. What approaches are needed to manage and conserve the nearshore marine resources? With financial support from USAID and in-kind support from the NOAA Coral Reef Conservation Program (CRCP), the NOAA Coral Reef Ecosystem Program (CREP) conducted baseline ecosystem assessment surveys to inform ecosystem-based management planning in Timor-Leste. The primary activities conducted by NOAA to answer these questions included: 1. satellite mapping of nearshore habitats, 2. conducting coral reef ecosystem assessments, 3. establishing ecological baselines for climate change, and 4. building management capacity by developing a spatial data framework The calcification rate data described herein resulted from the third activity to establish ecological baselines for climate change. As the survey methods described and used herein are also implemented as part of the NOAA Pacific Reef Assessment and Monitoring Program (Pacific RAMP)—an ecosystem-scale interdisciplinary coral reef monitoring program—the data from Timor-Leste are directly comparable to and informed by data collected by NOAA-CREP throughout the U.S. Pacific Islands and Territories. Furthermore, the methods used for establishing ecological baselines for climate change in Timor-Leste (Chapter 4) are being adopted and implemented at 21 sites across eight member states of the Intergovernmental Oceanographic Commission within the Western Pacific (WESTPAC) region. These data provide a foundation for comparing the ecological baselines under current and future stresses associated with climate change in the Coral Triangle region.
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  • accessLevel: Public
  • Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives.
Dataset Citation
  • Cite as: Coral Reef Ecosystem Program; Pacific Islands Fisheries Science Center (2018). Calcification rates of crustose coralline algae (CCA) derived from calcification accretion units (CAUs) deployed at coral reef sites in Timor-Leste from 2012-10-15 to 2014-10-09 (NCEI Accession 0170031). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0170031. Accessed [date].
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Acknowledgments
  • Related Funding Agency: US DOS; United States Agency for International Development
Theme keywords NODC DATA TYPES THESAURUS NODC OBSERVATION TYPES THESAURUS WMO_CategoryCode
  • oceanography
CoRIS Discovery Thesaurus
  • Numeric Data Sets > Calcification Rate
CoRIS Theme Thesaurus
  • EARTH SCIENCE > Biosphere > Aquatic Habitat > Reef Habitat
  • EARTH SCIENCE > Biosphere > Vegetation > Algae > Algal Cover
  • EARTH SCIENCE > Biosphere > Vegetation > Algae > Algal Growth > Calcification Rate
  • EARTH SCIENCE > Biosphere > Vegetation > Algae > Calcareous Macroalgae
  • EARTH SCIENCE > Biosphere > Vegetation > Algae > Crustose Coralline Algae
  • EARTH SCIENCE > Biosphere > Vegetation > Algae > Encrusting Macroalgae
  • EARTH SCIENCE > Biosphere > Vegetation > Algae > Fleshy Macroalgae
  • EARTH SCIENCE > Biosphere > Vegetation > Algae > Reef Monitoring and Assessment
  • EARTH SCIENCE > Biosphere > Vegetation > Algae > Reef Monitoring and Assessment > Calcification Accretion Unit (CAU)
  • EARTH SCIENCE > Biosphere > Zoology > Corals > Reef Monitoring and Assessment
  • EARTH SCIENCE > Biosphere > Zoology > Corals > Reef Monitoring and Assessment > Baseline studies
  • EARTH SCIENCE > Biosphere > Zoology > Corals > Reef Monitoring and Assessment > In Situ Biological
  • EARTH SCIENCE > Oceans > Coastal Processes > Coral Reefs
  • EARTH SCIENCE > Oceans > Ocean Chemistry > Calcification
  • EARTH SCIENCE > Oceans > Ocean Chemistry > Carbonate Chemistry
  • EARTH SCIENCE > Oceans > Ocean Chemistry > Ocean Acidification
Global Change Master Directory (GCMD) Science Keywords Provider Keywords
  • Ocean Acidfication
Data Center keywords NODC COLLECTING INSTITUTION NAMES THESAURUS NODC SUBMITTING INSTITUTION NAMES THESAURUS Contributing Data Centers
  • CRED
  • CREP
  • Coral Reef Ecosystem Division
  • Coral Reef Ecosystem Program
  • PIFSC
  • Pacific Islands Fisheries Science Center
Global Change Master Directory (GCMD) Data Center Keywords
Instrument keywords NODC INSTRUMENT TYPES THESAURUS Provider Instruments
  • CAU
  • Calcification Plate
  • Settling Plate
  • calcification accretion unit
Place keywords NODC SEA AREA NAMES THESAURUS CoRIS Place Thesaurus
  • COUNTRY/TERRITORY > Democratic Republic of Timor-Leste (East Timor) (09S126E0001)
  • OCEAN BASIN > Indian Ocean > Timor Sea > Democratic Republic of Timor-Leste (East Timor) (09S126E0001)
Global Change Master Directory (GCMD) Location Keywords Provider Place Names
  • Atauro
  • Baucau
  • Bobonaro
  • Dili
  • Lautem
  • Manatuto
  • Timor-Leste
  • Vila MPA
Project keywords NODC PROJECT NAMES THESAURUS
Keywords NCEI ACCESSION NUMBER
Use Constraints
  • Cite as: Coral Reef Ecosystem Program; Pacific Islands Fisheries Science Center (2018). Calcification rates of crustose coralline algae (CCA) derived from calcification accretion units (CAUs) deployed at coral reef sites in Timor-Leste from 2012-10-15 to 2014-10-09 (NCEI Accession 0170031). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0170031. Accessed [date].
  • Coral Reef Ecosystem Program (CREP) Data Sharing Recommendations, version 9.0 updated August 12, 2015: CREP welcomes the opportunity to collaborate on research issues contributing to the scientific basis for better management of marine ecosystems. CREP has a very diverse set of field activities that generates large volumes of data using an array of data collection protocols. The following recommendations are for your consideration as you use this data: 1) Data analyses should take all field exigencies into account. The most effective way to do this would be active collaboration with CREP principal investigators. 2) In all presentations, product releases, or publications using data generated by CREP, proper acknowledgement of both CREP and the individuals responsible for data collection is expected. Citing the DOI (if available) is preferred, a non-DOI example is listed below. 3) If you collect or generate data for the same study areas, CREP requests that you share relevant information on complimentary data collections. 4) Those receiving data are strongly urged to inform the CREP Data Management Team of any errors and discrepancies that are discovered during the course of using these data. They are further urged to bring to the attention of the Team all problems and difficulties encountered in using these data. This information is necessary in order to improve the collections and to facilitate more efficient and economical data processing and retrieval. The users are asked to supply copies of any missing data that may be located, and to provide information as to significant subsets and special aggregations of data that are developed in using the material provided. Example citation: "This publication makes use of data products provided by the Coral Reef Ecosystem Program (CREP), Pacific Islands Fisheries Science Center (PIFSC), National Marine Fisheries Service (NMFS), National Oceanic and Atmospheric Administration (NOAA), with funding support from the United States Agency for International Development. The analysis and interpretations presented here are solely that of the current authors”
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Lineage information for: dataset
Processing Steps
  • 2018-01-27T01:55:15Z - NCEI Accession 0170031 v1.1 was published.
  • 2022-08-31T20:55:02Z - NCEI Accession 0170031 was revised and v2.2 was published.
    Rationale: Updates were received for this dataset. These updates were copied into the data/0-data/ directory of this accession. These updates may provide additional files or replace obsolete files. This version contains the most complete and up-to-date representation of this archival information package. All of the files received prior to this update are available in the preceding version of this accession.
Output Datasets
Lineage information for: dataset
Processing Steps
  • Parameter or Variable: CALCIFICATION (measured); Units: gram/centimeter; Observation Category: laboratory analysis; Sampling Instrument: calcification accretion unit.
Acquisition Information (collection)
Instrument
  • laboratory analysis
Last Modified: 2024-04-13T19:41:55Z
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