DECAF - AUTEC Beaked Whales - Multiple Sensors - DTag

Occurrence Observation
Latest version published by OBIS-SEAMAP on Oct 7, 2025 OBIS-SEAMAP

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 51,245 records in English (4 MB) - Update frequency: not planned
Metadata as an EML file download in English (13 KB)
Metadata as an RTF file download in English (11 KB)

Description

Original provider: Density Estimation of Cetaceans from passive Acoustic Fixed sensors (DECAF) Abstract: This archive contains data on echolocation clicks of Blainville's beaked whale (Mesoplodon densirostris) recorded at AUTEC during a 6-day period in spring 2005. The data were used in estimating M. densirostris density as documented in the paper Marques et al. (2009). There are data files containing click counts per minute per hydrophone, files containing numbers of false positive detections from a manual analysis, and files giving information about georeferenced tracks of tagged whales and associated vocalization timings.

Data Records

The data in this occurrence 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 51,245 records.

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.

How to cite

Researchers should cite this work as follows:

Ward, J. 2013. DECAF - AUTEC Beaked Whales - Multiple Sensors - DTag. Version 1.0.0. Dataset published in OBIS-SEAMAP. https://doi.org/10.82144/b10fd42b.

Rights

Researchers should respect the following rights statement:

The publisher and rights holder of this work is OBIS-SEAMAP. 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: bbd71c1c-c505-4669-8d81-afe56aca2779.  OBIS-SEAMAP publishes this resource, and is itself registered in GBIF as a data publisher endorsed by Ocean Biodiversity Information System.

Keywords

Marine Biology; Telemetry; Tagged animal; Marine Animal Survey; Marine mammals; Animal tagging; Radio transmitters; Occurrence; Observation

External data

The resource data is also available in other formats

OBIS-SEAMAP Dataset Page https://seamap.env.duke.edu/dataset/685 UTF-8 Interactive map
FGDC Metadata https://seamap.env.duke.edu/dataset/685/fgdc UTF-8 XML
EML Metadata https://seamap.env.duke.edu/dataset/685/eml UTF-8 XML

Contacts

Jessica Ward
  • Owner
  • Originator
  • Point Of Contact
  • Primary contact
Naval Undersea Warfare Center
OBIS-SEAMAP
  • Metadata Provider
  • Distributor
Marine Geospatial Ecology Lab, Duke University
  • A328 LSRC building
27708 Durham
NC
US

Geographic Coverage

Oceans

Bounding Coordinates South West [24.332, -77.64], North East [24.632, -77.444]

Taxonomic Coverage

Scientific names are based on the Integrated Taxonomic Information System (ITIS).

Species Mesoplodon densirostris (Blainville's beaked whale)

Temporal Coverage

Start Date / End Date 2006-10-23 / 2007-09-06

Project Data

No Description available

Title DECAF - AUTEC Beaked Whales - Multiple Sensors - DTag
Funding NA

The personnel involved in the project:

Jessica Ward
  • Owner

Sampling Methods

NA

Study Extent NA

Method step description:

  1. NA

Collection Data

Collection Name zd_685
Collection Identifier zd_685
Parent Collection Identifier OBIS-SEAMAP

Bibliographic Citations

  1. Marques, T.A., L. Thomas, J. Ward, N. DiMarzio, P. L. Tyack. 2009. Estimating cetacean population density using fixed passive acoustic sensors: An example with Blainville’s beaked whales. Journal of the Acoustical Society of America: 125(4): 1982-1994.

Additional Metadata

marine, harvested by iOBIS. Each record represents the georeferenced echolocation click of a single tagged whale. Only regular clicks from the tagged whale are included. Time zone is GMT. Additional attributes include pitch, roll, and heading of the tagged whale and data on presence or absence of detections of each click on nearby seafloor hydrophones. Data on the presence or absence of DTAG clicks on nearby seafloor hydrophones are available at http://seamap.env.duke.edu/dataset/722. Automated and manually verified click detections from 82 seafloor hydrophones in a related dataset are available at http://seamap.env.duke.edu/dataset/677. Original data can be downloaded at http://www.creem.st-and.ac.uk/decaf/decaf-data-files under Case Study 3: Beaked whale data