Pacific Reef Assessment and Monitoring Program: Rapid Ecological Assessments of Fish Belt Transect Surveys (BLT) in the Pacific Ocean from 2000-09-09 to 2009-05-05 (NCEI Accession 0162462)

Belt transects (BLT) are a non-invasive underwater-survey method that enumerates the diverse components of diurnally active shallow-water reef fish assemblages. At each Rapid Ecological Assessment survey site, BLT fish surveys are conducted along 3 consecutively-placed, 25m transect lines to quantify relatively small-bodied and abundant fishes. A pair of scuba diver-observers conducts parallel swims along the transect lines, recording size-class specific counts of all fishes encountered, to species-level where possible, within visually estimated but defined belt widths: 4 m wide for fishes > 20 cm TL (100 m2 area) on the initial swim-out, and 2 m wide for fishes < 20 cm TL (50 m2 area) on the subsequent swim back. Transect lines are typically set at depths of 10-15 m. Reef ledges and holes are visually searched. Stations are completed on all sides of the island/atoll, weather and sea conditions permitting. Raw survey data includes species level abundance estimates.

Tags: 1221, 587, agrihan island, agrihan island (18n145e0002), aguihan, aguihan island (aguijan) (14n145e0006), aguihan island reefs, alamagan island, alamagan island (17n145e0002), american samoa, american samoa (14s170w0000), anatahan, anatahan island, anatahan island (16n145e0001), aquatic habitat, arakane reef, arakane reef (15n141e0001), asuncion island, asuncion island (19n145e0001), baker island, baker island (00n176w0001), biennial, biosphere, c204 pacific reef assessment and monitoring program (pacific ramp): biennial monitoring for the us p, central pacific ocean, cnmi, coastal processes, commonwealth of the northern mariana islands, coral reef ecology, coral reef ecosystem division, coral reef ecosystem program, coral reefs, corals, country/territory, cred, crep, djxbmj, earth science, ecological dynamics, farallon de pajaros, farallon de pajaros (20n144e0001), fish, fish assemblages, fish census, french frigate shoals (24n166w0001), gardner pinnacles (25n168w0001), guam, guam (13n144e0000), guguan, guguan island, guguan island (17n145e0001), hawaii, hawaii island, hawaii island (19n155w0003), hawaiian islands, hawaiian islands (21n157w0027), honolulu, howland island, howland island (00s176w0001), jarvis island (00s160w0001), johnston atoll, johnston atoll (16n169w0001), kauai, kauai island, kauai island (22n159w0001), kaula island (21n160w0003), kingman reef (06n162w0001), kure atoll (28n178w0001), lanai island, lanai island (20n156w0002), laysan island (25n171w0001), lehua island (22n160w0001), line islands, lisianski island (25n173w0001), main hawaiian islands, manu'a group, manu'a islands (14s170w0038), mariana archipelago, mariana islands, marianas, marine biology, maro reef (25n170w0001), maug, maug island, maug island (20n145e0001), maui, maui island, maui island (20n156w0004), mhi, midway atoll (28n177w0001), molokai island, molokai island (21n157w0001), necker island (23n164w0001), nihoa (23n161w0001), niihau island, niihau island (21n160w0001), northern mariana islands, northern mariana islands ( cnmi ) (18n146e0000), northwestern hawaiian islands, northwestern hawaiian islands (28n178w0000), numeric data sets, nwhi, oahu (21n157w0003), oahu island, ocean basin, oceanography, oceans, ofu island (14s169w0013), olosega island (14s169w0014), pacific islands fisheries science center, pacific ocean, pacific reef assessment and monitoring program: monitoring coral reef ecosystems of the us pacific i, pacific remote island areas, pagan, pagan island, pagan island (18n145e0001), palmyra atoll (05n162w0001), pathfinder reef, pathfinder reef (16n141e0001), pearl and hermes reef (27n176w0001), pifsc, pria, rapid assessment studies, rapid ecological assessment, rea, reef fish, reef fish census, reef habitat, reef monitoring and assessment, rose atoll (14s168w0001), rota, rota island, rota island ( luta ) (14n145e0007), saipan, saipan island, saipan island (15n145e0002), santa rosa bank (12n144e0051), sarigan island, sarigan island (16n145e0003), spc, species richness, stationary, stationary point count, swains atoll (11s171w0001), ta'u island (14s169w0012), tinian, tinian island (14n145e0005), tinian island reefs, tutuila island (14s170w0016), united states of america, usa minor outlying islands, wake atoll, wake atoll (19n167e0001), western pacific ocean, zoology
Organization: National Oceanic and Atmospheric Administration, Department of Commerce