Benthic habitat data of Wawaloi and Keei, Kona Coast, Island of Hawaii, August 2004 (NODC Accession 0070530)

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Frequently anticipated questions:

What does this data set describe?

Title:
Benthic habitat data of Wawaloi and Keei, Kona Coast, Island of Hawaii, August 2004 (NODC Accession 0070530)
Abstract:
Transects were made at two locations on the west side of the Island of Hawaii in August 2004 to study the structure and composition of the benthic habitat. Photoquadrants were established to quanitfy the percent of the benthic substrate occupied by coral and algal species,through use of Coral Point Count with Excel Extensions. Rugosity along each transect was also calculated. The transects were 15 min length with photoquadrants at each meter mark. Each set of transects at each site consists of 10 15-m long transects running ~parallel to the shore, with ends of all transects aligned, and transects spaced 10 m apart along the vertical profile of the reef from the reef flat to the sandy interface at a depth of ~25 m. Quantified data provided in Excel spreadsheets. Original JPEG images from the photo quadrants are given as well, for future users to have the opportunity to apply other methods of quantifying the benthos.
Supplemental_Information:
NOAASupplemental:Entry_ID: Unknown Sensor_Name: SCUBA Sensor_Name: transect chain Sensor_Name: camera Sensor_Name: underwater metric tape Project_Campaign: Hawaii Coral Reef Initiative Originating_Center: Dept. Zoology, Univ. Hawaii Storage_Medium: MS 2007 Excel, MS 2007 Word Reference: None Online_size: 521,861 kbytes
  1. How might this data set be cited?
    Claisse, Dr. Jeremy, Unknown, Benthic habitat data of Wawaloi and Keei, Kona Coast, Island of Hawaii, August 2004 (NODC Accession 0070530).

    Online Links:

  2. What geographic area does the data set cover?
    West_Bounding_Coordinate: -156.05
    East_Bounding_Coordinate: -155.9167
    North_Bounding_Coordinate: 19.7
    South_Bounding_Coordinate: 19.45
  3. What does it look like?
  4. Does the data set describe conditions during a particular time period?
    Beginning_Date: 06-Aug-2004
    Ending_Date: 11-Aug-2004
    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?
    Entity_and_Attribute_Overview:
    DIRECTORY ORGANIZATION, FILE NAMES AND FORMATS: Data are found under directory data/subdirectory 0-data: contains directories and files exactly as provided by the data originator subdirectory 1-data: any directory or file created by NODC in preparation of the data for the archive Details of 0-data/subdirectory name: Claisse Data to Caldwell contents: original directory containing data and subsequent directories: filename: Kona Benthic Habitat Methods.docx format: MS Office 2007 Word document contents: metadata comment: redundant copy in PDF/A format placed in 1-data/filename: Kona Benthic Transect Data.xlsx format: MS Office 2007 Excel spreadsheet contents: datacomments: multiple spreadsheets, with each spreadsheet saved in 1-data/ as a comma-separated version (CSV) text file with filename: Kona_Benthic_Transect_Data_xxxxxxxx where xxxxxxxx is the original name of the given sheetdescription of each sheet:_Transects: parameters: Site, Date, Transect Number, Depth, Rugosity Transect length, Rugosity Chain length, rugosity_Wawaloli_xx: where xx is Transect Number, one sheet for each transect parameters: output from Coral Point Count Coral, Diseased corals, macroalgae, invertebrates, substrate_Wawaloli_Data_Summary: contents: summary information for all transect sheets at Wawaloli including statistics_keei_xx: where xx is Transect Number, one sheet for each transect parameters: output from Coral Point Count Coral, Diseased corals, macroalgae, invertebrates, substrate_keei_Data_Summary: contents: summary information for all transect sheets at Keei including statistics directory name: Keei/ contents: JPEG images from photoquadrants at Keei filename template: KttD-mm.JPG where: tt: transect number D: direction of transect N: transect started from north side S: transect started from south side mm: distance in meters along transect directory name: Wawaloli/ contents: JPEG images from photoquadrants at Wawaloli filename template: WttD-mm.JPG where: tt: transect number D: direction of transect N: transect started from north side S: transect started from south side mm: distance in meters along transect
    Entity_and_Attribute_Detail_Citation: none

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?
    Hawaii Coral Reef Initiative Grant Number: NA03 NOS4260044 HCRI 6 Hawaii Cooperative Fishery Research Unit/University of Hawaii Department of Zoology
  3. To whom should users address questions about the data?
    Dr. Jeremy Claisse
    Occidental College
    Professor
    1600 Campus Rd.
    Los Angeles, CA
    USA

    (323) 259-2618 (voice)
    claisse@oxy.edu

Why was the data set created?

To characterize the structure and composition of benthic microhabitat at 2 sites along the Kona Coast.

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)
    METHODOLOGY: Each set of transects at each site consists of 10 15-m long transects running~parallel to the shore, with ends of all transects aligned, and transects spaced 10 m apart along the vertical profile of the reef from the reef flat to the sandy interface at a depth of ~25 m. For our Olympus 50/50 a plastic block was cable tied to the side of thehousing. A small hole was drilled into the block, into which a clear plasticrod 75 cm long and 1 cm in diameter was inserted. Deployment Methods for deployment were dependent upon the size/type of area surveyed.1. Fixed transects: A metric tape was stretched from one float to the other at the ends of each transect. Photoquadrats were taken at each meter mark on the tape for the full length of the transect (15m). The chain was then draped along the substrate and over the contours of the reef directly under the metric tape. At the end of the transect, a colored cable tie was used to mark the length of chain laid over the substrate.Data Collection 1. Photoquadrats: The percent of benthic substrate occupied by coral and algal species, as well as various substrate types, was determined by analyzing photoquadrats with the software Coral Point Count with Excel extensions (CPCe). CPCe allows for random generation of any desired number of points within a picture, which will then be identified and grouped into specified taxonomic categories. For this particular study, the coral code (taxonomic categories) used by the West Hawaii DAR office was employed. The entire picture was analyzed, and a simple random distribution of 20 points was overlaid on each. A circle with a crosshair was used for the data pointshape. The category for each point was determined by identifying the substrate or species that occupied most of the circle, as opposed to what was lying directly beneath the crosshair. In the absence of a distinct coral,algal, or invertebrate species under a data point, the substrate was defined as turf/bare, which could then be further specified as turf/bare on rubble or on skeletons of various coral species. 2. Rugosity: The total distance along the substrate surface was determinedby measuring the length of the chain deployed for each transect to the appropriately colored cable tie. This length was then divided by the straight-line distance of the transect to yield a rugosity index value. INSTRUMENT TYPES: Underwater metric tape, 100 m long on plastic reel Digital camera Camera stand of fixed length Lightweight chain made of small links REFERENCES: Parrish, J.D. and J.T Claisse, 2006. Post-settlement life history of key coral reef fishes in a Hawaiian marine protected area network; Phase II (Year 7). Hawaii Coral Reef Initiative, Grant NA03 NOS4260044. University of Hawaii. p. 42. Person who carried out this activity:
    Dr. Jeremy Claisse
    Occidental College
    Professor
    1600 Campus Rd.
    Los Angeles, CA
    USA

    (323) 259-2618 (voice)
    claisse@oxy.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?
    quality control completed
  5. How consistent are the relationships among the observations, including topology?
    see methodology

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/National Oceanographic Data Center
    Attn: Data Access Group, User Services Team
    SSMC-3 Fourth Floor
    Silver Spring, MD
    USA

    301-713-3277 (voice)
    301-713-3302 (FAX)
    services@nodc.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: 06-Jan-2021
Last Reviewed: 09-Feb-2011
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 CSDGM (FGDC-STD-001-1998)
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