CRED REA Coral Population Parameters at Maui, Main Hawaiian Islands, August 2005

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Frequently anticipated questions:


What does this data set describe?

Title:
CRED REA Coral Population Parameters at Maui, Main Hawaiian Islands, August 2005
Abstract:
Belt transects along 2 consecutively-placed, 25m transect lines were surveyed as part of Rapid Ecological Assessments conducted at 6 sites at Maui Island and 3 sites at Molokini Islet in the Main Hawaiian Islands in August, 2005 from the NOAA vessel Hi'ialakai (HII05-05). Raw survey data included species presence and relative abundance, colony counts and size classes, and visual estimaion of percent cover. On each side of the transect lines, 0.5 m was included in the belt (for a total of 50m2 per site).
Supplemental_Information:
Maximum depth was 17 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 Coral Pocillopora Pocilloporidae Scleractinia Anthozoa Cnidaria Animalia
  1. How might this data set be cited?
    Coral Reef Ecosystem Division (CRED), Pacific Islands Fisheries Science Center (PIFSC), National Marine Fisheries Service (NMFS), National Oceanic and Atmospheric Administration (NOAA), 20070806, CRED REA Coral Population Parameters at Maui, Main Hawaiian Islands, August 2005.

    Online Links:

  2. What geographic area does the data set cover?
    West_Bounding_Coordinate: -156.978956
    East_Bounding_Coordinate: -156.697211
    North_Bounding_Coordinate: 21.031408
    South_Bounding_Coordinate: 20.574383
  3. What does it look like?
  4. Does the data set describe conditions during a particular time period?
    Beginning_Date: 04-Aug-2005
    Ending_Date: 06-Aug-2005
    Currentness_Reference: Ground condition
  5. What is the general form of this data set?
    Geospatial_Data_Presentation_Form: spreadsheet
  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?
      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 Decimal Degrees. 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.
      Vertical_Coordinate_System_Definition:
      Depth_System_Definition:
      Depth_Datum_Name: Local surface
      Depth_Resolution: 1
      Depth_Distance_Units: meters
      Depth_Encoding_Method: Explicit Depth Coordinate Included with Horizontal Coordinates
  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?
    ;
  3. To whom should users address questions about the data?
    Coral Reef Ecosystem Division (CRED), Pacific Islands Fisheries Science Center (PIFSC), National Marine Fisheries Service (NMFS), National Oceanic and Atmospheric Administration (NOAA)
    NOAA IRC
    Honolulu, HI
    USA

    808 725-5360 (voice)
    808 725-5429 (FAX)
    nmfs.pic.credinfo@noaa.gov
    Contact_Instructions: e-mail preferred

Why was the data set created?

Part of a reef assessment program at biennial intervals in which corals, algae, fish, and other macroinvertebrates are co-sampled along the same set of transect lines

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)
    As diver swam along the transect line, she inspected the corals whose center fell within a 1m belt (i.e., 0.5m on each side of the transect line). Each such coral was tallied by species and classified by its maximum diameter in one of 7 size classes: 0-5cm, 5-10cm, 10-20cm, 20-40cm, 40-80cm, 80-160cm, or >160cm. At the end of this survey, a visual estimation of coral percent cover was made and recorded. Lastly, a larger area around the transect belt was inspected for additional coral taxa that did not occur within the belt; the relative abundance of all corals was qualitatively assessed using the DACOR system (D = Dominant, A = Abundant, C = Common, O = Occasional, R = Rare.
  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?
    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.
  2. How accurate are the geographic locations?
    GPS unit
  3. How accurate are the heights or depths?
    Dive computer and SCUBA depth gauge
  4. Where are the gaps in the data? What is missing?
    Selection of survey sites was guided by priority areas outlined by the State of Hawaii Department of Land and Natural Resources, Division of Aquatic Resources. The intention was to survey areas that had not been previously scientifically assessed. The sites therefore do not necessarily represent a range of habitats or exposures.
  5. How consistent are the relationships among the observations, including topology?
    The same methods of data collection were used at each of the sites surveyed at this location, and were conducted by the same scientist.

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:
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
  1. Who distributes the data set? (Distributor 1 of 1)
    Coral Reef Ecosystem Division (CRED), Pacific Islands Fisheries Science Center (PIFSC), National Marine Fisheries Service (NMFS), National Oceanic and Atmospheric Administration (NOAA)
    Attn: CRED Data Management Team
    NOAA IRC
    Honolulu, HI
    USA

    808 725-5360 (voice)
    808 725-5429 (FAX)
    nmfs.pic.credinfo@noaa.gov
    Contact_Instructions: e-mail preferred
  2. What's the catalog number I need to order this data set? Offline Data
  3. What legal disclaimers am I supposed to read?
    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.
  4. How can I download or order the data?
  5. Is there some other way to get the data?
    Contact CRED data management team for information
  6. What hardware or software do I need in order to use the data set?
    Contact CRED data management team for information

Who wrote the metadata?

Dates:
Last modified: 26-May-2019
Metadata author:
Coral Reef Ecosystem Division (CRED), Pacific Islands Fisheries Science Center (PIFSC), National Marine Fisheries Service (NMFS), National Oceanic and Atmospheric Administration (NOAA)
NOAA IRC
Honolulu, HI
USA

808 725-5360 (voice)
808 725-5429 (FAX)
nmfs.pic.credinfo@noaa.gov
Contact_Instructions: e-mail preferred
Metadata standard:
FGDC Content Standard for Digital Geospatial Metadata (FGDC-STD-001-1998)

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