Okeanos Explorer (EX2301): 2023 Shakedown + EXPRESS West Coast Exploration

Sampling event
Latest version published by NOAA Ocean Exploration on May 11, 2026 NOAA Ocean Exploration

Download the latest version of this resource data as a Darwin Core Archive (DwC-A) or the resource metadata as EML or RTF:

Data as a DwC-A file download 11 records in English (2 MB) - Update frequency: unknown
Metadata as an EML file download in English (11 KB)
Metadata as an RTF file download in English (11 KB)

Description

From April 13-27, 2023 (Portland, Oregon, to Seattle, Washington), NOAA Ocean Exploration conducted the 2023 Shakedown + EXPRESS West Coast Exploration expedition (EX2301), an ROV and Mapping expedition to a shakedown the remotely operated vehicle (ROV), video, telepresence, seafloor mapping, and sampling operations aboard NOAA Ship Okeanos Explorer, as well as explore deep waters off the west coast of the United States. Operations during this 15-day expedition included the completion of 9 successful remotely operated vehicle (ROV) dives, which were conducted in water depths ranging from 650 m to 3960 m for approximately 45:34 hours of bottom time and resulted in the collection of 92 samples. This research used data collected during NOAA Ship Okeanos Explorer expedition EX2301, led by NOAA Ocean Exploration. Taxonomic identifications provided by the Deep-sea Animal Research Center at University of Hawai'i at Manoa. Additional Data Resources: Project website: https://oceanexplorer.noaa.gov/expedition/ex2301/ Expedition report: https://repository.library.noaa.gov/view/noaa/55891 Data was archived with NOAA’s National Centers for Environmental Information (NCEI): https://www.ncei.noaa.gov/waf/okeanos-rov-cruises/ex2301/ Annotation dataset (provided by DARC) archived with NCEI: https://oer.hpc.msstate.edu/okeanos/ex2301/Eventlogs/VideoAnnotations-Version2/Specimen/ Sample Data: Sample records archived at NCEI: https://www.ncei.noaa.gov/data/oceans/archive/arc0219/0283599/1.1/data/0-data/submersible/Submersible_Specimen_Data/EX2301_Cruise_Specimens.csvBiological samples were sent to the Smithsonian National Museum of Natural History (SNMNH): https://collections.nmnh.si.edu/search/iz/Geological samples were sent to Oregon State University’s Marine Geological Repository: https://osu-mgr.org/noaa-exWater collected and filtered for eDNA analyses were sent to the SNMNH. Sample catalog numbers: https://geome-db.org/record/ark:/21547/FjB2 NCBI bioproject: https://www.ncbi.nlm.nih.gov/bioproject/1285415 eDNA data in OBIS: https://ipt-obis.gbif.us/resource?r=noaa-oer-okeanos-ex2301

Data Records

The data in this sampling event resource has been published as a Darwin Core Archive (DwC-A), which is a standardized format for sharing biodiversity data as a set of one or more data tables. The core data table contains 11 records.

2 extension data tables also exist. An extension record supplies extra information about a core record. The number of records in each extension data table is illustrated below.

Event (core)
11
ExtendedMeasurementOrFact 
89133
Occurrence 
14907

This IPT archives the data and thus serves as the data repository. The data and resource metadata are available for download in the downloads section. The versions table lists other versions of the resource that have been made publicly available and allows tracking changes made to the resource over time.

Versions

The table below shows only published versions of the resource that are publicly accessible.

Rights

Researchers should respect the following rights statement:

The publisher and rights holder of this work is NOAA Ocean Exploration. This work is licensed under a Creative Commons Attribution (CC-BY 4.0) License.

GBIF Registration

This resource has been registered with GBIF, and assigned the following GBIF UUID: b7584a87-d359-429c-bc7b-d19ee7b64677.  NOAA Ocean Exploration publishes this resource, and is itself registered in GBIF as a data publisher endorsed by GBIF-US.

Keywords

Samplingevent

External data

The resource data is also available in other formats

Contacts

NOAA Ocean Exploration
Deep Sea Animal Research Center at University of Hawai'i at Manoa
Ashley Marranzino
  • Distributor
NOAA Ocean Exploration Affiliate

Geographic Coverage

United States West Coast

Bounding Coordinates South West [39.504, -128], North East [48.778, -122.607]

Temporal Coverage

Start Date / End Date 2023-04-13 / 2023-04-27

Sampling Methods

ROV expeditions are conducted according to procedures as outlined by Galvez et al., 2025: https://repository.library.noaa.gov/view/noaa/70281.

Study Extent United States West Coast

Method step description:

  1. ROV expeditions are conducted according to procedures as outlined by Galvez et al., 2025: https://repository.library.noaa.gov/view/noaa/70281 Expedition report: https://repository.library.noaa.gov/view/noaa/55891

Additional Metadata

Acknowledgements
Purpose