National Coral Reef Monitoring Program: Towed-diver Surveys of Large-bodied Fishes of the Marianas since 2014

Metadata Updated: February 7, 2018

The towed-diver method is used to conduct surveys of large-bodied (> 50 cm) fishes in the Hawaiian and Mariana Archipelagos, American Samoa, and the Pacific Remote Island Areas as part of the NOAA National Coral Reef Monitoring Program (NCRMP). A suitable method for assessing relatively large areas of reef habitat, the method involves towing a pair of SCUBA divers—one benthic and one fish—behind a small boat for approximately 50 min following the ~15-m depth contour and covering about 2–3 km of habitat. Each diver is equipped with a towboard and attempts to maintain a constant elevation above the surface of the reef (~1 m) for the duration of the survey. A complete towed-diver survey is divided into 10 5-min segments, with visual observations recorded by 5-min segment.

The visual estimate data provided in this dataset were collected during towed-diver surveys in which the number, size, and species of all large-bodied fishes observed within a visually estimated 5-m transect on either side of the fish diver and 10 m in front were recorded. The data were collected around the Marianas as part of the NOAA Pacific Islands Fisheries Science Center (PIFSC), Coral Reef Ecosystem Program (CREP) led mission since 2014. These data can be accessed online via the NOAA National Centers for Environmental Information (NCEI) Ocean Archive.

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Dates

Metadata Date September 11, 2017
Metadata Created Date February 7, 2018
Metadata Updated Date February 7, 2018
Reference Date(s) 2016 (publication)
Frequency Of Update asNeeded

Metadata Source

Harvested from NOAA CSW Harvest Source

Graphic Preview

Diver counting coral reef fishes using the towed diver method.

Additional Metadata

Resource Type Dataset
Metadata Date September 11, 2017
Metadata Created Date February 7, 2018
Metadata Updated Date February 7, 2018
Reference Date(s) 2016 (publication)
Responsible Party Pacific Islands Fisheries Science Center (Point of Contact, Custodian)
Contact Email
Access Constraints Access Constraints: None | Use Constraints: Please cite NOAA Coral Reef Ecosystem Program (CREP) when using the data. Suggested citation: National Coral Reef Monitoring Program: Towed-diver Surveys of Large-bodied Fishes of the Marianas in 2014. NOAA's National Centers for Environmental Information, https://inport.nmfs.noaa.gov/inport/item/35762. | Distribution Liability: 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.
Bbox East Long 145.8533789
Bbox North Lat 20.54979267
Bbox South Lat 13.22982722
Bbox West Long 144.6258831
Coupled Resource
Frequency Of Update asNeeded
Graphic Preview Description Diver counting coral reef fishes using the towed diver method.
Graphic Preview File https://pifsc-www.irc.noaa.gov/cred/img/diver_using_towboard_sm.jpg
Graphic Preview Type JPG
Guid gov.noaa.nmfs.inport:35762
Harvest Object Id 5d0c3015-4369-4550-b6d4-68b6e6de25a8
Harvest Source Id 2aed8e29-fc5b-4cde-aa66-fb1118fd705e
Harvest Source Title NOAA CSW Harvest Source
Licence
Metadata Language eng
Metadata Type geospatial
Progress onGoing
Spatial Data Service Type
Spatial Reference System
Spatial Harvester True
Temporal Extent Begin 2014-03-25
Temporal Extent End 2014-05-06

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