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Pacific Reef Assessment and Monitoring Program: Rapid Ecological Assessment Quadrat Surveys of Corals around the Marianas Islands from 2003 to 2007

Metadata Updated: November 10, 2023

The Pacific Reef Assessment and Monitoring Program (Pacific RAMP), established by the Coral Reef Ecosystem Program (CREP) of the NOAA Pacific Islands Fisheries Science Center (PIFSC), is tasked with documenting and understanding the status and trends of coral reef ecosystems in the U.S. Pacific. Pacific RAMP involves an interdisciplinary series of integrated ecosystem observations of coral reefs around ~ 50 islands, atolls, and shallow-water banks of the Mariana Archipelago, American Samoa, the Hawaiian Archipelago, and the Pacific Remote Islands Marine National Monument. Pacific RAMP surveys are designed to characterize the spatial and temporal variability of the distribution, abundance, and diversity of corals, algae, other macro-invertebrates, and fishes in the context of their benthic habitats and oceanographic environments.

As part of this Pacific-wide monitoring effort, CRED conducted its first Pacific RAMP research cruise to the Mariana Archipelago (MARAMP) in 2003, with subsequent cruises to follow on a biennial cycle through 2011, and on a triennial cycle thereafter when Pacific RAMP was implemented as part of NOAA's National Coral Reef Monitoring Program (NCRMP).

The coral data described herein were collected via Rapid Ecological Assessment (REA) surveys following the quadrat method, and conducted at specific reef sites around the islands and reefs of Guam and the Commonwealth of the Northern Mariana Islands (CNMI) during MARAMP 2003, 2005, and 2007. During MARAMP 2003, 2005, and 2007, the majority of REA surveys were conducted along the fore reef slopes of islands at depths of 10-20 m; however, other habitat types were also surveyed. During REA surveys, biological assessment teams---a fish team, a coral team, and a combined algal and macro-invertebrate team---followed highly structured protocols that were repeated at each REA site. REA sites were selected in 2003 and, when possible, revisited during 2005 and 2007; a few additional sites were added in 2005 and 2007, and were chosen based on consultations with the resource management agencies of each jurisdiction.

Quadrat surveys were conducted at all islands surveyed during MARAMP 2003, all but one island during MARAMP 2005, and at 10 of 15 islands during MARAMP 2007. The quadrat method was only employed during surveys in the Mariana Archipelago, and the method was retired from Pacific RAMP following MARAMP 2007.

The quadrat survey data include species/genus identification of individual coral colonies and empirical size measurements (colony length and width) that can provide metrics such as generic richness and composition, coral-colony density, and size distribution (not included in the dataset), and can be accessed online via the NOAA National Centers for Environmental Information (NCEI) Ocean Archive, accession #0129066.

Access & Use Information

License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

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Dates

Metadata Date October 17, 2023
Metadata Created Date November 12, 2020
Metadata Updated Date November 10, 2023
Reference Date(s) October 14, 2014 (publication)
Frequency Of Update notPlanned

Graphic Preview

Browse graphic.

Additional Metadata

Resource Type Dataset
Metadata Date October 17, 2023
Metadata Created Date November 12, 2020
Metadata Updated Date November 10, 2023
Reference Date(s) October 14, 2014 (publication)
Responsible Party (Point of Contact, Custodian)
Contact Email
Guid gov.noaa.nmfs.inport:24527
Access Constraints Cite As: Pacific Islands Fisheries Science Center, [Date of Access]: Pacific Reef Assessment and Monitoring Program: Rapid Ecological Assessment Quadrat Surveys of Corals around the Marianas Islands from 2003 to 2007 [Data Date Range], https://www.fisheries.noaa.gov/inport/item/24527., Access Constraints: None | Use Constraints: Please cite NOAA Coral Reef Ecosystem Program (CREP) when using the data. Example Cite as: Vargas-Ángel, Bernardo; Coral Reef Ecosystem Program; Pacific Islands Fisheries Science Center (2015). Pacific Reef Assessment and Monitoring Program: Rapid Ecological Assessment Quadrat Surveys of Corals around the Marianas Islands from 2003 to 2007 (NCEI Accession 0129066). NOAA National Centers for Environmental Information. Unpublished Dataset. [access date] | Distribution Liability: While every effort has been made to ensure that these data are accurate and reliable within the limits of the current state of the art, NOAA cannot assume liability for any damages caused by errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty.
Bbox East Long 145.9
Bbox North Lat 20.6
Bbox South Lat 12.8
Bbox West Long 142.8
Coupled Resource
Frequency Of Update notPlanned
Graphic Preview Description Browse graphic.
Graphic Preview File http://data.nodc.noaa.gov/coris/data/NOAA/nmfs/pifsc/cred/coral_quadrat/BrowseGraphic_CoralQuadrat.png
Graphic Preview Type PNG
Harvest Object Id 69ac4d1d-9d9a-4bdc-9ef7-97fa410be1d1
Harvest Source Id c0beac72-5f43-4455-8c33-1b345fbc2dfe
Harvest Source Title NMFS PIFSC
Licence NOAA provides no warranty, nor accepts any liability occurring from any incomplete, incorrect, or misleading data, or from any incorrect, incomplete, or misleading use of the data. It is the responsibility of the user to determine whether or not the data is suitable for the intended purpose.
Lineage The quadrat survey method was used to collect coral assemblage data as part of Rapid Ecological Assessment (REA) surveys. Generic richness, colony density, and size distribution of coral colonies can be calculated from the data.
Metadata Language eng
Metadata Type geospatial
Old Spatial {"type": "Polygon", "coordinates": [[[142.8, 12.8], [145.9, 12.8], [145.9, 20.6], [142.8, 20.6], [142.8, 12.8]]]}
Progress completed
Spatial Data Service Type
Spatial Reference System
Spatial Harvester True
Temporal Extent Begin 2007-05-25
Temporal Extent End 2007-06-08

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