One, 25-m line transect was surveyed at 50-cm intervals as part of the Rapid Ecological Assessment conducted at 9 sites at Maro Reef in the Northwestern Hawaiian Islands in September, 2004 from the NOAA vessel Hi'ialakai (HI04-01). Raw survey data included percent live coral cover. Following the line-interspect survey, a 6m-wide transect, placed along the previously laid 25-m line was examined for the prevalence of coral disease.
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 22 meters. Corals observed: Common Name Scientific Name Species Genus Family Order Class Phylum- Kingdom Division Coral Porites Poritidae Scleractinia Anthozoa Cnidaria Animalia Coral Montipora Acroporidae Scleractinia Anthozoa Cnidaria Animalia
Ground condition
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
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Observations were made by a single diver who is an expert in coral biology. The population parameter survey is conducted one time per site per survey year; it is not replicated.
The same methods of data collection were used at each of the sites surveyed at this location, and were conducted by the same scientist.
The survey sites were selected to be representative of the dominant habitats at this reef system.
GPS unit
Instrument parameters
Dive computer and SCUBA depth gauge
As a diver swam along the transect line, he inspected and talied the live coral elements falling directly underneath each 50-cm mark on the transect line. At the end of this examination , the diver also surveyed an area of 25x6 m, along each transect, within which prevalence of coral disease was recorded.
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.
Contact CRED data management team for information