Assessing cryptic reef diversity of colonizing marine invertebrates using Autonomous Reef Monitoring Structures (ARMS) deployed at coral reef sites in Timor-Leste from 2012 to 2014

Metadata Updated: November 17, 2018

The data described here, including photographs, genetic sequences, and specimen information, were collected by the NOAA Coral Reef Ecosystem Program (CREP) from Autonomous Reef Monitoring Structures, or ARMS, moored for two years at fixed climate survey sites located on hard bottom shallow water (< 15 m) habitats in Timor-Leste. Climate sites were established in Timor-Leste in October 2012 to establish ecological baselines for climate change by measuring multiple features of the coral reef environment (in addition to the data described herein) over time.

Three ARMS units were typically deployed by SCUBA divers at each survey site. Each ARMS unit, constructed in-house by CREP, consisted of 23 cm x 23 cm gray, type 1 PVC plates stacked in alternating series of 4 open and 4 obstructed layers and attached to a base plate of 35 cm x 45 cm, which was affixed to the reef. Upon recovery, each ARMS unit was encapsulated, brought to the surface, and disassembled and processed. Disassembled plates were photographed to document recruited sessile organisms, scraped clean and preserved in 95% ethanol for DNA processing. Recruited motile organisms were sieved into 3 size fractions: 2 mm, 500 µm, and 100 µm. The 500 µm and 100 µm fractions were bulked and also preserved in 95% ethanol for DNA processing. The 2 mm fraction was sorted into morphospecies, photographed, and identified to the lowest taxanomic identification possible. The plate photographs, sequences generated from the DNA metabarcoding of the scrapings and the 500- and 100-µm fractions, specimen photographs, and specimen identifications are included in the ARMS dataset. The data can be accessed online via the NOAA National Centers for Environmental Information (NCEI) Ocean Archive.

ARMS are used by CREP to assess and monitor cryptic reef diversity across the Pacific. Developed in collaboration with the Census of Marine Life (CoML) Census of Coral Reef Ecosystems (CReefs), ARMS are designed to mimic the structural complexity of a reef and attract/collect colonizing marine invertebrates. The key innovation of the ARMS method is biodiversity is sampled over precisely the same surface area in the exact same manner. Thus, the use of ARMS is a systematic, consistent, and comparable method for monitoring the marine cryptobiota community over time.

Access & Use Information

License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

Downloads & Resources

Dates

Metadata Date December 15, 2017
Metadata Created Date November 17, 2018
Metadata Updated Date November 17, 2018
Reference Date(s) 2017 (publication)
Frequency Of Update notPlanned

Metadata Source

Harvested from NOAA CSW Harvest Source

Graphic Preview

A NOAA diver installing an ARMS unit.

Additional Metadata

Resource Type Dataset
Metadata Date December 15, 2017
Metadata Created Date November 17, 2018
Metadata Updated Date November 17, 2018
Reference Date(s) 2017 (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: Coral Reef Ecosystem Program; Pacific Islands Fisheries Science Center (2017). Assessing cryptic reef diversity of colonizing marine invertebrates using Autonomous Reef Monitoring Structures (ARMS) deployed at coral reef sites in Timor-Leste from 2012 to 2014. NOAA's National Center for Environmental Information, https://inport.nmfs.noaa.gov/inport/item/46159. | 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 127.31222
Bbox North Lat -8.22438
Bbox South Lat -8.85321
Bbox West Long 125.01319
Coupled Resource
Frequency Of Update notPlanned
Graphic Preview Description A NOAA diver installing an ARMS unit.
Graphic Preview File http://www.pifsc.noaa.gov/cred/images/arms_install_sm.jpg
Graphic Preview Type JPEG
Guid gov.noaa.nmfs.inport:46159
Harvest Object Id f25c2174-8e92-4cd3-ac8f-0609fe4405ba
Harvest Source Id 2aed8e29-fc5b-4cde-aa66-fb1118fd705e
Harvest Source Title NOAA CSW Harvest Source
Licence
Metadata Language eng
Metadata Type geospatial
Progress completed
Spatial Data Service Type
Spatial Reference System
Spatial Harvester True
Temporal Extent Begin 2012-10-15
Temporal Extent End 2014-10-09

Didn't find what you're looking for? Suggest a dataset here.