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DECAF - AUTEC Sperm Whales - Multiple Sensors - Samples
Citation
Jessica A. Ward, Len Thomas, Susan Jarvis, Nancy DiMarzio, David Moretti, Tiago A. Marques, Charlotte Dunn, Diane Claridge, Eva Hartvig and Peter Tyack. in press. Passive Acoustic Density Estimation of Sperm Whales in the Tongue of the Ocean, Bahamas. Marine Mammal Science
Contact: Ward, Jessica

Access data
Availability: Creative Commons License This dataset is licensed under a Creative Commons Attribution 4.0 International License.

Description
Data on sperm whales recorded at the Atlantic Undersea Test and Evaluation Center in the Tongue of the Ocean, Bahamas in August-September 2007. Samples. more

This archive contains data on sperm whales (Physeter macrocephalus) recorded at the Atlantic Undersea Test and Evaluation Center (AUTEC) in the Tongue of the Ocean, Bahamas in August-September 2007. Data are provided showing when sperm whales were detected on the range during the time period, details about the availability of the acoustic data used in the analysis and finally, the number and size of sperm whale groups localized. Records in this dataset represent a sample of data used in the sperm whale group localizations. Fifty 10-minute periods were randomly subsampled from the available acoustic files, and clicking animals were localized, where possible. By chance, some 10-minute periods did not contain any sperm whale clicks. This dataset used multiple hydrophones at AUTEC to detect sperm whale clicks. Click trains from individual whales were identified, enabling the number of diving whales to be estimated. Assuming that all diving sperm whale groups at a given time are detected by AUTEC, then density of diving sperm whales can be estimated. Records in this dataset represent the sample of data used in the sperm whale group localizations. Each record represents the detection of a whale on a given hydrophone. A single whale may be heard on multiple hydrophones, as indicated in series. The related dataset describing when sperm whales were detected on the range is available at http://seamap.env.duke.edu/dataset/682. Original data can be downloaded at http://www.creem.st-and.ac.uk/decaf/decaf-data-files under Case Study 2: Sperm whale data Time zone is GMT. Hydrophone locations are approximate. Dataset credit = Density Estimation of Cetaceans from passive Acoustic Fixed sensors (DECAF) (http://www.creem.st-and.ac.uk/decaf/)

Scope
Themes:
Biology > Mammals
Keywords:
Marine, A, North Atlantic, Physeter macrocephalus Linnaeus, 1758

Geographical coverage
A, North Atlantic [Marine Regions]

Temporal coverage
17 August 2007 - 3 September 2007

Taxonomic coverage
Physeter macrocephalus Linnaeus, 1758 [WoRMS]

Contributor
Naval Undersea Warfare (NUWC), more

Related datasets
Published in:
OBIS-SEAMAP: Spatial Ecological Analysis of Megavertebrate Populations, more
Other relation:
DECAF - AUTEC Sperm Whales - Multiple Sensors - Complete Dataset, more

Publication
Based on this dataset:
Ward, J.A. et al. (2012). Passive acoustic density estimation of sperm whales in the Tongue of the Ocean, Bahamas. Mar. Mamm. Sci. 28(4): E444–E455. hdl.handle.net/10.1111/j.1748-7692.2011.00560.x, more

URLs

Dataset information:

Dataset status: Completed
Data type: Data
Data origin: Research: field survey
Metadatarecord created: 2012-11-23
Information last updated: 2012-11-23
All data in IMIS is subject to the VLIZ privacy policy