Coral Species, Colony Sizes, and Percent Coverage Based on Photoquadrat Images from the Hawaii Coral Reef Assessment and Monitoring Program: 2000 - 2002, (NODC Accession 0002312)

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Frequently anticipated questions:


What does this data set describe?

Title:
Coral Species, Colony Sizes, and Percent Coverage Based on Photoquadrat Images from the Hawaii Coral Reef Assessment and Monitoring Program: 2000 - 2002, (NODC Accession 0002312)
Abstract:
Fixed photoquadrats are used to examine trends of individual organisms with regards to growth, recruitment and mortality. Five haphazardly selected photoquadrats at each depth contour were established with 4 pins at each corner to ensure accurate repositioning of the frame. NODC Accession 0001115 consists of these photoquadrat images from CRAMP surveys taken from 1999 to 2002 at 27 sites within the main Hawaiian Islands. Some locations have multiple depths. Surveys were taken once per year. Field work coincided with video transects.

This data set consists of an MS Access relational database and subsequently derived spreadsheets based on these tables. The data were generated by PointCount99 on the images found in NODC Accession 0001115. The PointCount output (not included) is the raw data while the Access database files (MDB) are summary files as well as select raw data.

Supplemental_Information:
These sites were surveyed using SCUBA equipment and a digital camera. The project was launched by the Coral Reef Assessment and Monitoring Program (CRAMP) at the Hawaii Institute of Marine Biology.
  1. How might this data set be cited?
    Jokiel, Dr. Paul, Rodgers, Dr. Kuulei, Brown, Mr. Eric, Hawaii Institute of Marine Biology, Oceanography, Department Of, School of Ocean and Earth Science and Technology, and Hawaii, University Of, Unknown, Coral Species, Colony Sizes, and Percent Coverage Based on Photoquadrat Images from the Hawaii Coral Reef Assessment and Monitoring Program: 2000 - 2002, (NODC Accession 0002312).

  2. What geographic area does the data set cover?
    West_Bounding_Coordinate: -159.7273
    East_Bounding_Coordinate: -155.0171
    North_Bounding_Coordinate: 22.2109
    South_Bounding_Coordinate: 19.5118
  3. What does it look like?
  4. Does the data set describe conditions during a particular time period?
    Beginning_Date: 04-Feb-2000
    Ending_Date: 07-Feb-2002
    Currentness_Reference: ground condition
  5. What is the general form of this data set?
  6. How does the data set represent geographic features?
    1. How are geographic features stored in the data set?
    2. What coordinate system is used to represent geographic features?
  7. How does the data set describe geographic features?

Who produced the data set?

  1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)
  2. Who also contributed to the data set?
    Department of Commerce, National Oceanic and Atmospheric Administration, Hawaii Coral Reef Initiative, 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
  3. To whom should users address questions about the data?
    Dr. Paul Jokiel
    Hawaii Institute of Marine Biology University of Hawaii
    Principal Investigator
    P.O. Box 1346
    Kaneohe, Hawaii
    USA

    808-236-7440 (voice)
    jokiel@hawaii.edu

Why was the data set created?

To understand the ecology of Hawaiian coral reefs in relation to the geographic areas and to monitor change at each given site. CRAMP experimental design allows detection of changes that can be attributed to various factors such as:overuse (over-fishing, anchor damage, aquarium trade collection, etc.), sedimentation, nutrient loading,catastrophic natural events (storm wave impact, lavaflows), coastal construction, urbanization, global warming(bleaching), introduced species, algal invasions, and fish and invertebrate diseases. The emphasis of the program is on the major problems facing Hawaiian coral reefs as listed by managers and reef scientists during workshops and meetings held in Hawaii (1997-1998). These are:over-fishing,sedimentation,eutrophication, and algal outbreaks.CRAMP experimental design gives priority to areas where baseline data relevant to these issues were previously collected. Transect dimensions, number of replicates, and methods of evaluation have been selected to detect changes with statistical confidence. Standard techniques include the establishment of permanent transects to quantify fish, coral, algae, and invertebrates at study sites. CRAMP researchers are quantifying changes that have occurred on coral reefs subjected to varying degrees of fishing pressure, sedimentation,eutrophication, and algal growth and are conducting experimental work in order to test hypotheses concerning the role of these environmental factors in the ecology of coral reefs. We are also in the process of resurveying, updating and integrating existing ecological information on an array of coral reefs that have been designated as areas of concern or, "hot spots," by managers and scientists.

How was the data set created?

  1. From what previous works were the data drawn?
  2. How were the data generated, processed, and modified?
    Date: Unknown (process 1 of 1)
    Fixed photoquadrats allow examination of trends of individual organisms with regards to growth, recruitment and mortality. Five haphazardly selected photoquadrats at each depth contour were established with 4 pins at each corner to ensure accurate repositioning of the frame. The frame dimension samples 0.33 m2of the substrate at a height of 0.5m from the bottom. Surveys are made annually at the time of video transects.

    PointCount99

    PointCount99 is a Win95/98 based PC program derived from PointCount for Coral Reefs which was developed in support of the United States Environmental Protection Agency's Florida Keys Coral Reef Monitoring Project (US EPA CRMP). The software utilizes the random point count method for accurately estimating percent coverage of corals, sponges, and associated substrate from digitally frame-grabbed underwater video images. Unlike its predecessor, PointCount for Coral Reefs, which operated in conjunction with Media Cybernetics Image-Pro Plus graphics software, PointCount99 is a stand-alone Visual Basic program built on Accusofts Image Gear platform. Funding for the development of PointCount99 was provided by the Jeanette and Lafayette Montgomery Foundation.

    PointCount99 makes image identification an efficient process. It calls up an image file and overlays a unique set of points supplied by an internal random number generator. PointCount99 is also able to use a unique set of random points (cd.dat) created for, and stored along with, a set of images. The user identifies each point and enters the data via a mouse driven graphic user interface. Species and substrate identifications require only a single mouse click. Corrections and multiple selections are easy to make, and hot keys are available to expedite the process. PointCount?99 also makes identifications easier by allowing the user to zoom in and out on images and enhance image quality with buttons for brightness/contrast, sharpness, and color levels.

    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:

    Dr. Paul Jokiel
    Hawaii Institute of Marine Biology University of Hawaii
    Principal Investigator
    P.O. Box 1346
    Kaneohe, Hawaii
    USA

    808-236-7440 (voice)
    jokiel@hawaii.edu
  3. What similar or related data should the user be aware of?

How reliable are the data; what problems remain in the data set?

  1. How well have the observations been checked?
  2. How accurate are the geographic locations?
  3. How accurate are the heights or depths?
  4. Where are the gaps in the data? What is missing?
    The 2000-2002 surveys were 100 percent complete
  5. How consistent are the relationships among the observations, including topology?
    see Process Step

How can someone get a copy of the data set?

Are there legal restrictions on access or use of the data?
Access_Constraints: None
Use_Constraints: Dataset credit required
  1. Who distributes the data set? (Distributor 1 of 1)
    NOAA/NESDIS/NODC/NCDDC (National Coastal Data Development Center)
    National Coastal Data Development Center, Building 1100
    Stennis Space Center, MS

    866-732-2382 (voice)
    228-688-2968 (FAX)
    ncddcgetdata@noaa.gov
    Hours_of_Service: 8am-5pm, Monday through Friday
  2. What's the catalog number I need to order this data set? Downloadable Data
  3. What legal disclaimers am I supposed to read?
    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.
  4. How can I download or order the data?

Who wrote the metadata?

Dates:
Last modified: 29-Mar-2020
Metadata author:
Mr. Patrick C. Caldwell
NOAA/NESDIS/NODC/NCDDC
Hawaii/US Pacific Liaison
1000 Pope Road, MSB 316
Honolulu, Hawaii
USA

(808)-956-4105 (voice)
(808) 956-2352 (FAX)
caldwell@hawaii.edu
Hours_of_Service: 8 AM to 5 PM weekdays
Contact_Instructions: check services@nodc.noaa.gov if not available
Metadata standard:
FGDC Content Standard for Digital Geospatial Metadata (FGDC-STD-001-1998)

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