This file consists of the following eleven (11) variables. The permissible values of these variables, including names of categories if the variable is a classification variable are noted [in brackets]:
DATE $ DDMMMYY [range: 23MAY05 to 10JUN05]
ISLAND $ [One (1) category: 'BIG']
SITE $ [Three (3) categories: 'PUK_END', 'HOLO', 'MAHU']
OBSERVER $ [Two (2) categories: 'EED', 'TWA']
TRANSECT [Transect number = 1, 2, 3 ... n, where n = 1-10 if SITE = 'HOLO' or if SITE = 'MAHU' but where n = 1-8 if SITE = 'PUK_END']
QUADTYP $ [Quadrat Type: either one of two types: 'REF' (for "Reference") and 'TAR' (for "Target"); REF quadrats were randomly placed to estimate substratum percent cover and rugosity throughout transected areas; the placement of TAR quadrats was selective - they were centered over recruit reef fish sightings to provide estimates of substratum cover and rugosity where recruits occurred]
QUADNO [Quadrat number = 1, 2, 3 ... n, where n = 1-7 for (SITE = 'PUK_END' and TRANSECT = 1 and QUADTYP = REF or QUADTYP = TAR); n = 1-5 for (SITE = 'PUK_END' and TRANSECT = 2 and QUADTYP = 'REF'); n = 1-4 for (SITE = PUK_END' and TRANSECT = 2 and QUADTYP = 'TAR'); and n = 1-3 for all other TRANSECT-QUADTYP-QUADNO combinations]
RUG1 ["Rugosity Index" = ratio of conforming to straight line distance over substrate features within an individual 1-m**2 quadrat; typical values range from > 1.2 to < 3.0; the theoretical minimum value is 1.0.]
RUG2 [Same measurement as RUG1 except taken perpendicular to RUG1 within same quadrat placement; the maximum value observed in the 2005 survey series for any single rugosity measurement was 3.55.]
SUBSTRATE $ [Seven (7) major substratum categories were used: Live massive [highly three-dimensional] Porites lobata coral (= PL_MASS); live encrusting [mostly two-dimensional] Porites lobata coral (= PL_ENCR); live Hawaiian finger coral Porites compressa (= PC); live cauliflower coral Pocillopora meandina (= POC); all live coral taxa other than the aforementioned )= CORALSPP); carbonate rock (dead coral limestone), generally with short (< 1-cm tall) turfing algae (= TURF); and SAND (unconsolidated carbonate).
PCT_SUB [Percent cover estimated for each of the seven (7) substratum categories; sums to 100% within each quadrat]
Fishery Biology and Stock Assessment Division (FBSAD), Pacific Island Fisheries Sciences Center, National Marine Fisheries Service, 20080331, FBSAD Reef Fish-Habitat Quadrat Surveys at Hawaii Island (Big Island), Main Hawaiian Islands, 2005 (NODC Accession 0046935).
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 Degrees and Decimal Minutes.
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.
EED = Edward E. DeMartini, Fishery Biology and Stock Assessment Division (FBSAD), Pacific Island Fisheries Sciences Center, National Marine Fisheries Service, NOAA
To provide taxonomic and functional characterizations of reef habitat that complement the reef fish density estimates provided by the companion database named "Recruit_Reef_Fish_Belt_Transects_2005.xls". These data represent the first surveys of a multi-year (spring season only) project using in situ diver observations at sites of differing habitat structure, to descriptively test predictions relating to the use of specific habitats by the juveniles of various species of reef fishes in Hawaii.
Observations at each site were made by two divers (EED, TWA = Dr. Todd W. Anderson, Department of Biology, San Diego State University), both experienced in underwater survey techniques. Observations were periodically checked during the surveys for consistency in recording protocols within- and between the two divers.
Dive computer and SCUBA depth gauge
The 3 survey sites were selected to be representative of wave-exposed (SITE = 'PUK_END', for "Point at End of the Road, Puako Beach Drive"); partially exposed (SITE = 'HOLO', for "Holoholokai Beach Park"), and wave-protected (SITE = 'MAHU', for "Mahukona") fringing reef habitats of the North and South Kohala districts coasts of leeward Hawaii Island. A completely balanced design (3 REF quadrats plus 3 TAR quadrats per each of 10 transects at each of 3 sites, for totals of 30 'REF' and 30 'TAR' quadrats per site) was initially intended. However, the outcome was slightly unbalanced at Site = 'PUK_END' (only 8 transects with from 3 to 7 'REF' and 'TAR' quadrats per transect, for totals of 30 'REF' and 29 'TAR' quadrats) due to logistical constraints.
The same methods of data collection were used at each of the sites surveyed, and all data were estimated and recorded by the same two scientists. Periodic examination of the data through the duration of the surveys showed no signs of diver bias or other discrepancies; this was further supported by the results of post hoc analyses evaluating diver comparability.
Are there legal restrictions on access or use of the data?
- Access_Constraints: None
- Please cite FBSAD when using the data. Fishery Biology and Stock Assessment Division, Pacific Islands Fisheries Science Center, National Marine Fisheries Service, National Oceanic and Atmospheric Administration
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.
|Data format:||XLS (Microsoft Excel worksheet)|
|Media you can order:||
CDROM, or email
(format ISO 9660)
Please contact Dr. Edward E. DeMartini for inquiries and data