https://doi.org/10.82144/0bc11430 https://seamap.env.duke.edu/dataset/680 https://www.gbif.org/dataset/366075de-36c8-4ae9-b483-deb6cab266e3 https://obis.org/dataset/3e24d236-a624-4fe6-9dbc-26a0ae71f783 Jessica Ward Naval Undersea Warfare Center Primary contact jessica.ward@navy.mil OBIS-SEAMAP Marine Geospatial Ecology Lab, Duke University

A328 LSRC building Durham NC 27708 US

seamap-contact@duke.edu https://seamap.env.duke.edu OBIS-SEAMAP Marine Geospatial Ecology Lab, Duke University

A328 LSRC building Durham NC 27708 US

seamap-contact@duke.edu https://seamap.env.duke.edu distributor Jessica Ward Naval Undersea Warfare Center Primary contact jessica.ward@navy.mil owner 2025-07-31 eng Original provider: Density Estimation of Cetaceans from passive Acoustic Fixed sensors (DECAF) Abstract: 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. Marine Biology Passive acoustic detection Marine Animal Survey Marine mammals Acoustic - group size Ocean-based Platforms N/A 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. This work is licensed under a Creative Commons Attribution (CC-BY) 4.0 License. https://seamap.env.duke.edu/dataset/680 Oceans,Pacific -77.6399427 -77.3866278 24.7075619 24.33918 2007-08-17 2007-09-03 Scientific names are based on the Integrated Taxonomic Information System (ITIS). species Physeter macrocephalus Sperm whale 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. notPlanned Jessica Ward Naval Undersea Warfare Center Primary contact jessica.ward@navy.mil NA NA NA Jessica Ward owner NA zd_680 2025-07-31T14:35:16-04:00 dataset Ward, J. 2013. DECAF - AUTEC Sperm Whales - Multiple Sensors - Samples. Version 1.0.0. Dataset published in OBIS-SEAMAP. https://doi.org/10.82144/0bc11430. OBIS-SEAMAP Dataset Page UTF-8 Interactive map https://seamap.env.duke.edu/dataset/680 FGDC Metadata UTF-8 XML https://seamap.env.duke.edu/dataset/680/fgdc EML Metadata UTF-8 XML https://seamap.env.duke.edu/dataset/680/eml OBIS-SEAMAP zd_680 zd_680 Jessica A. Ward, Len Thomas, Susan Jarvis, Nancy DiMarzio, David Moretti, Tiago A. Marques, Charlotte Dunn, Diane Claridge, Eva Hartvig and Peter Tyack. 2012. Passive Acoustic Density Estimation of Sperm Whales in the Tongue of the Ocean, Bahamas. Marine Mammal Science: 28, E444–E455.