In a separate NODC Accession (0000881), benthic data for substrate types and coverages are given, which were derived objectively from these photographic images using PhotoGrid, a software package which analyzes random points on images of coral reefs and substrate.
Resource Description: NODC Accession Number 0052882
Leong, Dr. Jo-Ann , Jokiel, Dr. Paul , Rodgers, Dr. Ku'ulei , Franklin, Mr. Erik , Hawaii Institute of Marine Biology, Oceanography, Department of , School of Ocean and Earth Science and Technology, and Hawaii, University of , Unknown, Hawaii Institute for Marine Biology and NOAA National Ocean Service, Marine Sanctuary Program Partnership, in affiliation with the Coral Reef Assessment and Monitoring Program, 2007 Survey of the Northwestern Hawaiian Islands Coral Reef Ecosystem Reserve: Digital Still Images (NODC Accession 0052882).
file: NWHI_2007sitedates_Coordinates.csv comment: spreadsheet format with dates, depths, and locations of dives
0-data/ NWHI07 Photogrid Images/ Contains subdirectories with the images with directory names as follows:
SSSnn Transect/ SSS is site location, nn: subregion as defined in file 0-data/NWHI_2007sitedates_Coordinates.csv
files: SSSnn_xx.JPG SSSNN as above xx: photo count
Funding and support: Partnership between the Hawaii Institute for Marine Biology and the National Oceanic and Atmospheric Administration, National Ocean Service, Marine Sanctuary Program
Coral Reef Assessment and Monitoring Program (CRAMP) support: Funding and support: Hawaii Coral Reef Initiative, National Oceanic and Atmospheric Administration, National Ocean Service, United States Geological Survey, State of Hawaii, Department of Land and Natural Resources, Division of Aquatic Resources, Kahoolawe Island Reserve Commission, United States Fish and Wildlife Service, Coastal Program, Limahuli National Botanical Garden, Save Our Seas
(808) 236-7401 (voice)
The surveys provide an important assessment of the status of the coral ecosystem. For CRAMP purposes, the surveys expand the spatial range of habitats and add to the extensive database for the main Hawaiian Islands. These will augment the CRAMP Ecological Gradient Model to compare sites throughout the archipelago and to assess the condition of the sites.
Subsequenty, data in a separate NODC Accession, 0000881, are derived via the software program PhotoGrid (Bird 2001), which is used to quantify percent cover, richness and diversity of corals, algal functional groups and substrate cover. Images are downloaded and the 20 non-overlapping images from each 10 m transect are imported into PhotoGrid where 50 randomly selected points are projected onto each image for a total of 1,000 points per transect
INSTRUMENT TYPES: digital camera: Olympus 5050 zoom digital camera
REFERENCES: Brown, E, E Cox, B Tissot, K Rodgers, and W Smith (1999). Evaluation of benthic sampling methods considered for the Coral Reef Assessment and Monitoring Program (CRAMP) in Hawaii. International Conference on Scientific Aspects of Coral Reef Assessment, Monitoring, and Restoration. April 14-16, Ft. Lauderdale, FL.
Person who carried out this activity:
The 2007 surveys were 100% complete
see Process Step
Are there legal restrictions on access or use of the data?
- Access_Constraints: None
- Use_Constraints: Dataset credit required
NOAA makes no warranty regarding these data,expressed or implied, nor does the fact of distribution constitute such a warranty. NOAA, NESDIS, NODC and NCDDC cannot assume liability for any damages caused by any errors or omissions in these data, nor as a result of the failure of these data to function on a particular system.
|Data format:||MS Excel, and ACSII CSV|
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