Description

Belt transects (BLT) is one of the non-invasive underwater-survey methods to enumerate the diverse components of diurnally active shallow-water reef fish assemblages. At each REA survey sites, 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. Transects 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 included species level abundance estimates. Reef fish and benthic estimate data collected during BLT surveys can be accessed online via the NOAA National Centers for Environmental Information (NCEI) Ocean Archive.

Resources

Format	Description	Link
0	The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords.	https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords
0	View the complete metadata record on InPort for more information about this dataset.	https://www.fisheries.noaa.gov/inport/item/5565
0	Pacific Island Fisheries Science Center homepage	https://www.pifsc.noaa.gov
0	Coral Reef Ecosystem Program website, Fish Ecology and Monitoring	https://www.pifsc.noaa.gov/cred/fish.php
0	NOAA Coral Reef Ecosystem Program website, description of Belt Transect Method used to survey coral reef fishes (2007-Present).	https://www.pifsc.noaa.gov/cred/survey_methods.php#belt_transect
0	NOAA National Coral Reef Monitoring Program (NCRMP) website.	https://www.coris.noaa.gov/monitoring/
0	Official NOAA Coral Reef Ecosystem Program (CREP) website, Pacific Reef Assessment and Monitoring Program (Pacific RAMP) project page.	https://www.pifsc.noaa.gov/cred/pacific_ramp.php
33	NOAA Data Management Plan for this record on InPort.	https://www.fisheries.noaa.gov/inportserve/waf/noaa/nmfs/pifsc/dmp/pdf/5565.pdf
0	Observations from belt transect surveys of coral reef fishes by the NOAA Coral Reef Ecosystem Program (CREP) conducted at various islands in the U.S. Pacific Islands Region from 2000 to 2009	https://accession.nodc.noaa.gov/0162462
0	NOAA PIFSC Coral Reef Ecosystem Program (CREP) website, fish survey methods training page	https://www.pifsc.noaa.gov/cred/survey_methods/fish_surveys/rapid_ecological_assessment_of_fish-survey_method_training.php
0	Data have been translated by a third party to Darwin Core format and served via the Ocean Biogeographic Information System (OBIS) Data Access portal: OBIS Dataset Title: NOAA Pacific Islands Fisheries Science Center, Ecosystem Science Division Coral Reef Ecosystem Program, Rapid Ecological Assessments of Fish Belt Transect Surveys (BLT) at Coral Reef Sites across the Pacific Ocean from 2000 to 2009. DOI: 10.15468/tzr5bf OBIS Dataset ID: a54a77db-7b42-4101-8d71-1adec3dd4ed5 OBIS provides a portal or gateway to many datasets containing information on where and when marine species have been recorded. The datasets are integrated so you can search them all seamlessly by species name, higher taxonomic level, geographic area, depth, and time; and then map and find environmental data related to the locations. There are several ways to access OBIS data: (1) Mapper, (2) API, and (3) R package. The mapper allows you to visualize and inspect subsets of OBIS data. A variety of filters (taxonomic, geographic, time, data quality) is available and multiple layers can be combined in a single view. Layers can be downloaded as CSV files. Developers can access data through the OBIS API or the R package.	https://mapper.obis.org/?datasetid=a54a77db-7b42-4101-8d71-1adec3dd4ed5

Pacific Reef Assessment and Monitoring Program: Rapid Ecological Assessments of Fish Belt Transect Surveys (BLT) at Coral Reef Sites across the Pacific Ocean from 2000 to 2009

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