Coral Reef Ecosystem Division (, Pacific Island Fisheries Sciences Cente, 20100215, CRED REA Coral Population Parameters at Johnston Atoll, Pacific Remote Island Areas (PRIAs) in 2008.Online Links:
Horizontal positions are specified in geographic coordinates, that is, latitude and longitude. Latitudes are given to the nearest 0.0001. Longitudes are given to the nearest 0.0001. Latitude and longitude values are specified in Degrees and Decimal Minutes.
The horizontal datum used is World Geodetic System 1984 (WGS84).
The ellipsoid used is Geodetic Reference System 80 (GRS80).
The semi-major axis of the ellipsoid used is 6378137.
The flattening of the ellipsoid used is 1/298.2572236.
Jason Helyer, Bernardo Vargas-Angel, Coral Reef Ecosystem Division (CRED), Pacific Island Fisheries Sciences Center, National Marine Fisheries Service, NOAA
808-983-3723 (voice)
808-983-3730 (FAX)
Part of a long-term monitoring program at biennial intervals in which corals, algae, fish, and other macroinvertebrates are co-sampled along the same set of transect lines.
Observations were made by two divers who are experts in coral biology. The population parameter survey is conducted one time per site per survey year; it is not replicated.
GPS unit
Dive computer and SCUBA depth gauge
The survey sites were selected to be representative of the dominant habitats at this reef system. Efforts were made to include broad spatial coverage of the reef area, but weather conditions or other environmental constraints may have precluded the team from surveying windward or exposed sites.
With the exception of the non-quantitative survey along the backreef, the same methods of data collection were used at each of the sites surveyed at this location, and were conducted by the same scientists.
Are there legal restrictions on access or use of the data?
- Access_Constraints: Data are available two years following data collection date
- Use_Constraints:
- Please cite CRED when using the data. Coral Reef Ecosystem Division, Pacific Islands Fisheries Science Center, National Marine Fisheries Service, National Oceanic and Atmospheric Administration
808-983-3725 (voice)
808-983-3730 (FAX)
Michael.Parke@noaa.gov
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 dies the fact of distribution constitute such a warranty.
Data format: | XLS (Microsoft Excel worksheet) |
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Media you can order: |
CDROM, or email
(format ISO 9660)
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Contact CRED data management team for information
Contact CRED data management team for information
808-983-3742 (voice)
808-983-3730 (FAX)
Haiying.Wang@noaa.gov