Division of Aquatic Resources (DAR), Division of Lands and Natural Resources (DLNR) of the State of Hawaii Fish Surveys from 23 West Hawaii Aquarium Project Sites during 1999-2005 (NODC Accession 0002767)

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Frequently anticipated questions:


What does this data set describe?

Title:
Division of Aquatic Resources (DAR), Division of Lands and Natural Resources (DLNR) of the State of Hawaii Fish Surveys from 23 West Hawaii Aquarium Project Sites during 1999-2005 (NODC Accession 0002767)
Abstract:
Data are from underwater visual surveys of fish stocks at 23 sites in West Hawaii. Survey sites are 8 to 14 m deep and are all located on reef shelves with moderate to high Porites compressa cover, the predominant habitat type at that depth on West Hawaii reefs, and the key habitat for the majority of fishes harvested for the aquarium trade. The survey program began as the West Hawaii Aquarium Project (WHAP) but since 2004 has continued as part of DAR's Main Hawaiian Islands Coral Reef Monitoring Program.
Supplemental_Information:
Sensor_Name SCUBA Source_Name manual Project_Campaign: Operational DAR Function Originating_Center Division of Aquatic Resources, Division of Lands and Natural Resources, State of Hawaii Storage_Medium MS Excel and MS Word Online_size: 29360 kbytes
  1. How should this data set be cited?

    Polhemus, Dr. Dan , Williams, Dr. Ivor , and Division of Aquatic Resources, Division of Lands and Natural Resources, State of Hawaii, Unpublished material, Division of Aquatic Resources (DAR), Division of Lands and Natural Resources (DLNR) of the State of Hawaii Fish Surveys from 23 West Hawaii Aquarium Project Sites during 1999-2005 (NODC Accession 0002767).

    Online Links:

  2. What geographic area does the data set cover?

    West_Bounding_Coordinate: -156.05
    East_Bounding_Coordinate: -155.8489
    North_Bounding_Coordinate: 20.16
    South_Bounding_Coordinate: 19.05

  3. What does it look like?

  4. Does the data set describe conditions during a particular time period?

    Beginning_Date: 09-Mar-1999
    Ending_Date: 16-Nov-2005
    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:
    I. Original files Directory: ../../data/original

    filename comment DAR West Hawaii Fish Surveys.xls MS Excel with 3 spreadsheets DAR WHAP Fish Surveys Notes.doc documentation

    Note: The DAR administrator has determined that DAR will distribute all raw WHAP-survey data which is more than 5 years old, but only summarized versions of newer data.

    The MS Excel data file contains 3 worksheets: (1) Raw Transect Data (1999-2000)- raw data from 1999 and 2000 (all information given broken down by transect and by observer; and including size or age-class information); (2) Summary Transect Data (2001-5)- summarized data from 1999 and 2000 (data pooled by site, no information given on transect. Observer, age-phase or size class); (3) 10min Free-Swim Data - being all data from the 10 minute presence-absence survey of the area surrounding the transects. Important point-- only fishes NOT observed on transects are included in the presence-absence survey worksheet (so need to pool free-swim and transect data to get complete presence-absence list).

    II. NODC Archive Files Directory: ../../data/nodc

    filename comment sites.jpg WHAPFishSurveysNotes.doc copy of original doc file (see ../original) WHAPFishSurveysNotes.htm redundant HTML copy WHAPFishSurveysNotes.txt redundant ASCII text copy WHawaiiFishSurveys.xls copy of original xls file (see ../original); sheets dumped as Comma Separated Variable (CSV) files WHawaiiFishSurveys_10MinFreeSwimData.csv 10min Free-Swim Data WHawaiiFishSurveys_RawTransectData1999_2000.csv Raw Transect Data (1999-2000) WHawaiiFishSurveys_SummaryTransectData2001_2005.csv Summary Transect Data (2001-5)

    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?

    Division of Aquatic Resources, Division of Lands and Natural Resources, State of Hawaii

  3. To whom should users address questions about the data?

    Dr. Ivor Williams
    Division of Aquatic Resources, Division of Lands and Natural Resources, State of Hawaii
    Marine biologist
    74-380 B Kealakehe Pkwy
    Kailua-Kona, Hawaii 96740
    USA

    808-983-3727 (voice)
    ivor@hawaii.edu


Why was the data set created?

Support sustainability of ecosystem resources


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)
    Surveys are conducted in 'rounds', each site being surveyed once per round. 4 to 6 rounds have been conducted per year and in total 39 rounds have been conducted.

    Each survey of a site generally involves 4 divers (2 pairs), who between them conduct (i) 'WHAP' surveys of the four 25m *4m permanently-located transects per site; and (ii) 10-minute freeswims (presence-absence swims).

    The WHAP fish protocol is based on fixed transects which can be closely surveyed for targeted species of all size classes, and where variability among fish populations can be related to fine-scale habitat variability among transects and sites. Six stainless steel eyebolts have been permanently drilled and cemented into the bottom to establish reference locations for four permanent 25m transects at each site. For efficiency during WHAP they have been situated in an H-shaped design at each study site. A transect width of 4m is utilized based on previous sampling experience with coral reef fishes in Hawai'i. The species, size class (in 5cm slots), and in some cases phase (e.g. 'recruit') of all fishes on transects are counted by a pair of divers in each survey. Divers first lay out transect lines between end pins, then swim one rapid swim to count mobile and mid-water species and the a return swim in which divers slowly and carefully swim the transect carefully recording fishes in and around the benthos. Transect lines are taken up after all transects have been completed.

    In addition to the fixed transects at each site, a 10 minute roving free-swim survey is done by a team of two divers after the fixed transect surveys are completed. The divers range about the areas adjacent to transects (~5000m2) recording the presence of fish species which were not observed on the transects.

    Person who carried out this activity:

    Dr. Ivor Williams
    Division of Aquatic Resources, Division of Lands and Natural Resources, State of Hawaii
    Marine biologist
    74-380 B Kealakehe Pkwy
    Kailua-Kona, Hawaii 96740
    USA

    808-983-3727 (voice)
    ivor@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?

    none

  5. How consistent are the relationships among the observations, including topology?

    see lineage, 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 39529

    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: 20-Dec-2012
Last Reviewed: 23-Mar-2009
Metadata author:
Mr. Patrick C. Caldwell
NOAA/NESDIS/NODC/NCDDC
Hawaii/US Pacific Liaison
1000 Pope Road, MSB 316
Honolulu, Hawaii 96822
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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