Coral Reef Ecosystem Division (CRED), Pacific Islands Fisheries Science Center (PIFSC), National Marine Fisheries Service (NMFS), National Oceanic and Atmospheric Administration (NOAA)
20090515
CRED REA Coral Population Parameters at Guam, Marianas Archipelago, 2007
spreadsheet
https://www.fisheries.noaa.gov/pacific-islands/ecosystems/coral-reefs-pacific
Belt transects along 2 consecutively-placed, 25m transect lines were surveyed as part of Rapid Ecological
Assessments conducted at 10 sites at Guam in the Marianas Archipelago (MA) during 12 - 22 May 2007 in the NOAA
Hi'ialakai Reef Assessment and Monitoring Program (RAMP) Cruise (HI0702). Raw survey data included species presence
and relative abundance, colony counts and size classes by genus, and determination of benthic cover using the
line-intercept method. Depending on colony density, 0.5 or 1 m on each side of the transect lines was included in
the belt (for a total of 25-100m2 per site).
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.
Maximum depth was 19 meters.
Corals Observed:
Common Name Species/Genus Family Order Class Phylum/Division Kingdom
Coral Leptastrea Faviidae Scleractinia Anthozoa Cnidaria Animalia
Coral Porites Poritididae Scleractinia Anthozoa Cnidaria Animalia
Coral Favia Faviidae Scleractinia Anthozoa Cnidaria Animalia
Coral Astreopora Acroporidae Scleractinia Anthozoa Cnidaria Animalia
Coral Montipora Acroporidae Scleractinia Anthozoa Cnidaria Animalia
20070512
20070522
Ground condition
asNeeded
144.613486
144.981368
13.669638
13.217378
NCEI Geoportal FilterCoRIS_MetadataCRCP ProjectPacific Reef Assessment and Monitoring Program (Pacific RAMP): Biennial monitoring for the U.S. Pacific Islands and Atolls1221
CoRIS Theme Thesaurus
EARTH SCIENCE > Oceans > Coastal Processes > Coral Reefs
EARTH SCIENCE > Biosphere > Zoology > Corals > Reef Monitoring and Assessment > Rapid Assessment Studies
EARTH SCIENCE > Oceans > Coastal Processes > Coral Reefs > Coral Reef Ecology > Coral Cover
EARTH SCIENCE > Oceans > Coastal Processes > Coral Reefs > Coral Reef Ecology > BioDiversity
None
Marine Ecosystem
Reef Assessment and Monitoring Program (RAMP)
Rapid Ecological Assessments (REA)
HI0702
CoRIS Discovery Thesaurus
Numeric Data Sets > Biology
ISO 19115 Topic Category
biota
002
CoRIS Place Thesaurus
OCEAN BASIN > Pacific Ocean > Western Pacific Ocean > Guam > Guam (13N144E0000)
COUNTRY/TERRITORY > United States of America > Guam > Guam (13N144E0000)
CoRIS Region
Guam
Data are available two years following data collection date.
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
Coral Reef Ecosystem Division (CRED), Pacific Islands Fisheries Science Center (PIFSC), National Marine Fisheries Service (NMFS), National Oceanic and Atmospheric Administration (NOAA)
mailing and physical address
NOAA IRC
NMFS/PIFSC/CRED
1845 WASP Blvd., Building 176
Honolulu
HI
96818
USA
808 725-5360
808 725-5429
nmfs.pic.credinfo@noaa.gov
e-mail preferred
Not applicable
Unclassified
Not applicable
Oracle
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.
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.
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.
GPS unit
1
Instrument parameters
Dive computer and SCUBA depth gauge
0.3
Instrument parameters
A diver swam along the length of three 25m transect lines that had previously been laid out along an isobath by a
fish survey team and haphazardly tossed a 0.5m x 0.5m quadrat 16 separate times. The diver identified all corals
whose center fell within the quadrat to the species level and listed coral species occurring within 0.5 m2 of
each side of the transect lines and the size class to which the maximum diameter of the colony belongs
( 5 cm; 5-10 cm; 10-20 cm; 20-40cm; 40-80 cm; 80-160 cm; or greater than 160 cm). For each coral colony, the
maximum diameter and diameter perpendicular to the maximum was measured using a hand-held tape measure.
A random swim is then conducted in the vicinity of the transect lines within an area of about 5,000m2 in which
all coral species are listed and assigned a DACOR abundance code based on visual estimation (D equals Dominant,
A equals Abundant, C equals Common, O equals Occasional, R equals Rare). If bottom time permits, corals showing
signs of disease, bleaching, or abnormal growth are tallied, described, and photographed.
20070522
0.0001
0.0001
Decimal Degrees
World Geodetic System 1984 (WGS84)
Geodetic Reference System 80 (GRS80)
6378137
298.2572236
Local surface
1
meters
Explicit Depth Coordinate Included with Horizontal Coordinates
Coral Reef Ecosystem Division (CRED), Pacific Islands Fisheries Science Center (PIFSC), National Marine Fisheries Service (NMFS), National Oceanic and Atmospheric Administration (NOAA)
CRED Data Management Team
mailing and physical address
NOAA IRC
NMFS/PIFSC/CRED
1845 WASP Blvd., Building 176
Honolulu
HI
96818
USA
808 725-5360
808 725-5429
nmfs.pic.credinfo@noaa.gov
e-mail preferred
Offline Data
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.
XLS (Microsoft Excel worksheet)
CDROM, or email
ISO 9660
None if receiving the data online
Contact CRED data management team for information
Contact CRED data management team for information
20190526
Coral Reef Ecosystem Division (CRED), Pacific Islands Fisheries Science Center (PIFSC), National Marine Fisheries Service (NMFS), National Oceanic and Atmospheric Administration (NOAA)
mailing and physical address
NOAA IRC
NMFS/PIFSC/CRED
1845 WASP Blvd., Building 176
Honolulu
HI
96818
USA
808 725-5360
808 725-5429
nmfs.pic.credinfo@noaa.gov
e-mail preferred
FGDC Content Standard for Digital Geospatial Metadata
FGDC-STD-001-1998
20080227030116
None
20070512
20070522
https://www.coris.noaa.gov/metadata/records/html/cred_rea_corals_guam_2007.html
1986