This file consists of the following seventeen (17) 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: 29MAY06 to 11JUL07]
LOCATION $ [Three (3) categories: 'BigIsl', 'Midway', 'Oahu__']
SITE $ [Seven (7) categories: 'BIPuakoEndofRd_', 'BISpencersPk___', 'OahuKaneoheBay_' 'MWCorlPoorPR___', 'MWCorlPoorBakRf', 'MWCorlRichPR___', MWCorlRichBakRf']
OBSRVR $ [Five (5) categories: 'AMF', 'CLK', 'EED', 'JPB', 'TWA']
TRANSNMBR [Transect number = 1, 2, 3 ? n, where n = 1-12 at each site if YEAR = 2006; but where n = 1-19 if (YEAR = 2007 and SITE = 'BIPuakoEndofRd_' or SITE = 'BISpencersPk___'); but where n = 1-40 if (YEAR = 2007 and SITE = OahuKaneoheBay_'); but where n = 1-80 if (YEAR = 2007 and SITE = 'MWCorlPoorBakRf' or SITE = 'MWCorlPoorPR___' or SITE = 'MWCorlRichBakRf' or SITE = 'MWCorlRichPR___')]
QUADTYP $ [Quadrat Type: either one of two types: 'REF' (for "Reference") and 'TAR' (for "Target"); 'REF' quadrats were randomly placed to estimate benthic cover of major substratum types and rugosity of the substratum 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]
QUADNMBR [Quadrat number = 1, 2, 3 ?. n, where n = 8 to 10 if (YEAR = 2006 and QUADTYP = 'REF') but where n = 7-11 if (YEAR =2006 and QUADTYP = 'TAR'); but where n = 5 if (YEAR = 2007 and QUADTYP = 'REF'); but where n = 5 to 9 if (YEAR = 2007 and QUADTYP = 'TAR').
QUADDEP_ft [Quadrat depth in feet; range from minimum 1 foot to maximum 20 feet (6.1 m)
SUBSTRTYP $ [Benthic substratum type closest to recruit(s) present within a given 'TAR' quadrat placement; ten (10) categories as for HABTYP variable]
RUG_L1_m ["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; both RUG_L1_m and RUG_L2_m (see next) measurements made with an accuracy of 0.05 m (5 cm)]
RUG_L2_m [Same measurement as RUG_L1_m except taken perpendicular to RUG_L1_m within same quadrat placement; the maximum value observed in the 2006-07 survey series for any single rugosity measurement (either RUG_L1_m or RUG_L2_m) was 4.4 m]
SPECIES $ [Four-letter acronym based on 1st 2 letters of the genus name and 1st 2 letters of the specific epithet of each fish individual recorded; the acronyms used are identical to those used by the Coral Reef Ecosystem Division (CRED) of the NOAA Fisheries, Pacific Islands Fisheries Research Center, to code all of their central and western North Pacific reef fish records]
SIZE_TLcm [Visually estimated body length in centimeters of recruit fishes recorded as present for QUADTYP = 'TAR'; TL is the abbreviation for "Total Length", the same metric is used to represent length on the CRED Fish Surveys; range: 1 to 8 cm TL (including larger, 6-10 cm TL juveniles sometimes associated with recruits) in 2006-07]
HABTYP $ [In 2006 ten (10) substratum categories were used at both sites at LOCATION = 'BigIsl': live, massive or mounding (encrusting) Porites lobata coral (= 'PLob'); live rice coral Montipora capitata (= 'MoCap'); live Hawaiian finger coral Porites compressa (= 'PCom'); live cauliflower coral Pocillopora meandina (= 'PMed'); erect foliose algae > 1-cm tall (= 'EFA'); crustose (encrusting, 2-dimensional) coralline algae (= 'CCA'); "knobby" or otherwise 3-dimensional (e.g., branching) coralline algae (= 'KCA'); consolidated carbonate rock (dead coral limestone), not easily moveable by hand, and generally with turf algae < 1-cm tall (= 'L'); unconsolidated carbonate rock easily moveable by hand but = 1-cm particle diameter (= 'Ru'); and unconsolidated particulate carbonate < 1-cm diameter (= 'S'). Twelve (12) substratum categories were used in 2006 at both sites at Location = 'Midway'; these included all ten of the aforementioned categories used at Location = 'BigIsl' in 2006. In addition, another two (2) substratum categories, totaling twelve (12) categories, were used in 2006 at LOCATION = 'Midway': other Pocillopora spp were distinguished from Pocillopora meandrina as 'PX'; and live Montipora flabellata ('MoFlab') was distinguished from Montipora capitata ('MoCap'). In 2007 a total fourteen (14) substratum categories were used; these included eleven of the aforementioned 12 categories (HABTYP = 'KCA' was dropped and "knobby" coralline algae was pooled with crustose coralline algae as HABTYP = 'CCA'). In addition, 3 new categories are added at all sites at all locations for a total fourteen (14) categories in 2007: two other, live encrusting corals, Pavona duerdini ('PavDuer') and Pavona varians ('PavVar'), plus a new category ('Othr') comprising miscellaneous sessile (sponge, tunicate, etc) and weakly motile (echinoids, holothurians, etc) benthic invertebrates.
HABCOVR_UNITS36 [Benthic cover recorded as the number of squares occupied by a particular HABTYP within a given 1 m**2 quadrat; range 0 to 36 squares, hence sums to 36 squares within each quadrat; provides input for calculating percentage cover based on the fraction of squares occupied divided by 36; cover of each HABTYP in a given quadrat was estimated to the nearest unit if > 1 square and to 0.1 unit if = 1 square]
CLUSTRNMBR [Number of "cluster" within a particular 'TAR' quadrat placement, where a "cluster" is defined as a group of one or more individual fish recruits present within 10-cm distance of another recruit; range: CLUSTRNMBR ranges from 1 to a maximum of 3 in the 2006-07 data]
YEAR [two (2) categories for year in which data were recorded: 2006, 2007]
Fishery Biology and Stock Assessment Division (FBSAD), Pacific Island Fisheries Sciences Center, National Marine Fisheries Service, 20090711, FBSAD Reef Fish-HABITAT Quadrat Surveys at Hawaii Island (Big Island, Main Hawaiian Islands), 2006 and 2007; Kaneohe Bay (Oahu, Main Hawaiian Islands), 2007 only; and Midway Atoll (Northwestern Hawaiian Islands), 2006 and 2007 (NODC Accession 0056602).
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 recruit and predator reef fish density estimates provided by the companion databases named "RECRUIT_Reef_Fish_Belt_Transects_2006-07.xls" and "PREDATOR_Reef_Fish_Belt_Transects_2006-07.xls". These data represent the second and third surveys in a multi-year (spring-summer seasons 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.
The GPS positions of individual transects at Location = 'BigIsl' were not recorded by GPS; the transects at each of these two sites in 2006 and 2007 were scattered haphazardly throughout 1.0-1.5 ha areas and were centered on: LOCATION = 'BigIsl" and SITE = 'BIPuakoEndofRd_': 19.958 N lat, -155.858 W lon LOCATION = 'BigIsl' and SITE = 'BISpencersPk___': 20.021 N lat, -155.823 W lon
At Location = 'Oahu__' and Location = 'Midway', transect positions were grouped in sets of 2-4 by mooring site. The positions of the groups of transects surveyed in 2007 at Location = 'Oahu__' were: SITE = 'OahuKaneoheBay_' and Transect = 1,2,3,4 21.444 N lat, -157.797 W lon SITE = 'OahuKaneoheBay_' and Transect = 5,6: 21.441 N lat, -157.800 W lon SITE = 'OahuKaneoheBay_' and Transect = 7,8: 21.439 N lat, -157.798 W lon SITE = 'OahuKaneoheBay_' and Transect = 9,10: 21.435 N lat, -157.800 W lon SITE = 'OahuKaneoheBay_' and Transect = 11,12: 21.475 N lat, -157.824 W lon SITE = 'OahuKaneoheBay_' and Transect = 13,14: 21.478 N lat, -157.828 W lon SITE = 'OahuKaneoheBay_' and Transect = 15,16: 21.476 N lat, -157.831 W lon SITE = 'OahuKaneoheBay_' and Transect = 17,18: 21.493 N lat, -157.838 W lon SITE = 'OahuKaneoheBay_' and Transect = 19,20: 21.488 N lat, -157.834 W lon SITE = 'OahuKaneoheBay_' and Transect = 21,22: 21.471 N lat, -157.823 W lon SITE = 'OahuKaneoheBay_' and Transect = 23,24: 21.447 N lat, -157.801 W lon SITE = 'OahuKaneoheBay_' and Transect = 25,26: 21.446 N lat, -157.803 W lon SITE = 'OahuKaneoheBay_' and Transect = 27,28: 21.453 N lat, -157.802 W lon SITE = 'OahuKaneoheBay_' and Transect = 29,30,31: 21.469 N lat, -157.820 W lon SITE = 'OahuKaneoheBay_' and Transect = 32,33,34: 21.470 N lat, -157.825 W lon SITE = 'OahuKaneoheBay_' and Transect = 35,36,37: 21.445 N lat, -157.803 W lon SITE = 'OahuKaneoheBay_' and Transect = 38,39,40: 21.450 N lat, -157.810 W lon
In 2006 the positions of the transects at the two categories of back reef sites at Location = 'Midway" (Site = 'MWCorlPoorBakRf' and Site = 'MWCorlRichBakRf', each numbered consecutively from 1 to 12) were: SITE = 'MWCorlPoorBakRf' and TRANSECT = 1,2,3: 28.224 N lat, -177.419 W lon SITE = 'MWCorlPoorBakRf' and TRANSECT = 4,5,6: 28.221 N lat, -177.421 W lon SITE = 'MWCorlPoorBakRf' and TRANSECT = 7,8,9: 28.213 N lat, -177.422 W lon SITE = 'MWCorlPoorBakRf' and TRANSECT = 10,11,12: 28.213 N lat, -177.422 W lon SITE = 'MWCorlRichBakRf' and TRANSECT = 1,2,3: 28.278 N lat, -177.365 W lon SITE = 'MWCorlRichBakRf' and TRANSECT = 4,5,6: 28.278 N lat, -177.365 W lon SITE = 'MWCorlRichBakRf' and TRANSECT = 7,8,9: 28.275 N lat, -177.355 W lon SITE = 'MWCorlRichBakRf' and TRANSECT = 10: 28.273 N lat, -177.351 W lon SITE = 'MWCorlRichBakRf' and TRANSECT = 11,12: 28.275 N lat, -177.355 W lon
In 2007 the transects at the two categories of back reef sites and two categories of patch reef sites at Midway were numbered 1-80 and were ordered without reference to site category. (The spatial positions of those numbered 1-12 at Midway in 2007 also did not necessarily coincide with the positions of those transects with the respective numbers in 2006; i.e., the transects were not fixed in position between years.) The positions of the series of 80 transects at Location = 'Midway' in 2007 were: SITE = 'MWCorlPoorPR___' and TRANSECT = 1,2,3: 28.223 N lat, -177.378 W lon SITE = 'MWCorlPoorPR___' and TRANSECT = 4,5,6: 28.226 N lat, -177.384 W lon SITE = 'MWCorlPoorPR___' and TRANSECT = 7,8,9: 28.223 N lat, -177.397 W lon SITE = 'MWCorlPoorBakRf' and TRANSECT = 10,11,12: 28.220 N lat, -177.421 W lon SITE = 'MWCorlRichPR___' and TRANSECT = 13,14,15: 28.222 N lat, -177.404 W lon SITE = 'MWCorlPoorPR___' and TRANSECT = 16,17,18: 28.217 N lat, -177.409 W lon SITE = 'MWCorlRichPR___' and TRANSECT = 19,20,21: 28.237 N lat, -177.395 W lon SITE = 'MWCorlRichPR___' and TRANSECT = 22,23,24: 28.233 N lat, -177.386 W lon SITE = 'MWCorlRichBakRf' and TRANSECT = 25,26,27: 28.272 N lat, -177.348 W lon SITE = 'MWCorlRichBakRf' and TRANSECT = 28,29,30: 28.273 N lat, -177.350 W lon SITE = 'MWCorlRichBakRf' and TRANSECT = 31,32,33: 28.278 N lat, -177.367 W lon SITE = 'MWCorlRichBakRf' and TRANSECT = 34,35,36: 28.277 N lat, -177.362 W lon SITE = 'MWCorlPoorBakRf' and TRANSECT = 37,38,39: 28.215 N lat, -177.422 W lon SITE = 'MWCorlPoorBakRf' and TRANSECT = 40,41,42: 28.209 N lat, -177.422 W lon SITE = 'MWCorlPoorBakRf' and TRANSECT = 43,44,45: 28.195 N lat, -177.407 W lon SITE = 'MWCorlPoorPR___' and TRANSECT = 46,47,48: 28.216 N lat, -177.393 W lon SITE = 'MWCorlRichPR___' and TRANSECT = 49,50,51: 28.218 N lat, -177.404 W lon SITE = 'MWCorlPoorPR___' and TRANSECT = 52,53,54: 28.217 N lat, -177.398 W lon SITE = 'MWCorlRichPR___' and TRANSECT = 55,56,57: 28.231 N lat, -177.402 W lon SITE = 'MWCorlPoorPR___' and TRANSECT = 58,59,60: 28.230 N lat, -177.394 W lon SITE = 'MWCorlRichBakRf' and TRANSECT = 61,62,63,64: 28.274 N lat, -177.354 W lon SITE = 'MWCorlRichBakRf' and TRANSECT = 65,66,67,68: 28.269 N lat, -177.386 W lon SITE = 'MWCorlPoorBakRf' and TRANSECT = 69,70,71,72: 28.199 N lat, -177.414 W lon SITE = 'MWCorlPoorBakRf' and TRANSECT = 73,74,75,76: 28.204 N lat, -177.419 W lon SITE = 'MWCorlPoorPR___' and TRANSECT = 77,78,79,80: 28.223 N lat, -177.391 W lon
Observations at each site were made by one or more pairs of divers from a pool of five trained diver-observers also experienced in taxonomy and underwater mensuration of Hawaiian reef corals and associated benthic substrata. Observations were periodically checked during the surveys for consistency in recording protocols.
Dive computer and SCUBA depth gauge
The survey sites/site-groups were selected to be representative of either relatively wave-exposed environments (SITE = 'BIPuakoEndofRd_' and SITE = 'MWCorlPoorBakRf') or relatively wave-protected environments (SITE = 'BISpencersPk___', 'OahuKaneoheBay_', 'MWCorlRichBakRf', 'MWCorlPoorPR___', and 'MWCorlRichPR___) spanning nearly the entire north-south and east-west extents of the Hawaiian Archipelago. In terms of transect sample sizes, a completely balanced design (a constant 12 transects at each of 2 sites at each of 2 Locations) was accomplished during 2006. Sampling effort was increased to a target 20 transects per site in 2007 but the outcome was slightly unbalanced (only 19 transects were completed) at the 'BIPuakoEndofRd_' and 'BISpencersPk___' sites in 2007 due to time constraints. Also, of the 40 total transects surveyed at Midway patch reefs in 2007, a total 25 and 15 transects were surveyed at SITE = 'MWCorlPoorPR___" and SITE = 'MWCorlRichPR___' because relatively few "coral-rich" patch reefs could be located. In general ten (10) "REF" and ten (10) 'TAR' quadrats were surveyed at each site in 2006. The exceptions were at SITE = 'BIPuakoEndofRd_', where the total number of quadrats surveyed per transect ranged from 8 to 10 for QUADTYP = 'REF' and from 7 to 11 for QUADTYP = 'TAR'; and at SITE = BISpencersPk___' where the total number of quadrats ranged from 9 to 10 for QUADTYP = 'TAR'. In 2007 there were a constant five (5) quadrats surveyed per transect at each site for QUADTYP = 'REF', as was generally the case for QUADTYP = 'TAR'. However, sometimes it was not possible to locate 5 'TAR' quadrats on a transect; occasionally more than 5 (to a maximimum of 9) 'TAR' quadrats were surveyed per transect on other transects to compensate for those transects on which fewer than 5 quadrats were surveyed.
The same methods of data collection were used at each of the sites surveyed. Periodic examination of the data through the duration of the surveys showed no signs of diver bias or other discrepancies.
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)|
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(format ISO 9660)
Please contact Dr. Edward E. DeMartini for inquiries and data