https://doi.org/10.82144/163f3240 https://seamap.env.duke.edu/dataset/722 Jessica Ward Naval Undersea Warfare Center Primary contact jessica.ward@navy.mil OBIS-SEAMAP Marine Geospatial Ecology Lab, Duke University

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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 ecolocation 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. Marine Biology Passive acoustic detection Ocean-based Platforms Acoustic calls N/A Each record represents a click detection on a seafloor array hydrophone from a single tagged whale. The click association to the DTAG click is available at <a href=http://seamap.env.duke.edu/dataset/685 target=external>http://seamap.env.duke.edu/dataset/685</a>. <br/> Automated and manually verified click detections from 82 seafloor hydrophones in a related dataset are available at <a href=http://seamap.env.duke.edu/dataset/677 target=external>http://seamap.env.duke.edu/dataset/677</a>. <br/> Original data can be downloaded at <a href=http://www.creem.st-and.ac.uk/decaf/decaf-data-files target=external>http://www.creem.st-and.ac.uk/decaf/decaf-data-files</a> under Case Study 3: Beaked whale data <br/> Time zone is GMT This work is licensed under a Creative Commons Attribution (CC-BY) 4.0 License. https://seamap.env.duke.edu/dataset/722 Oceans -77.6399427 -77.4085393 24.6605046 24.3217863 2006-10-23 2007-09-06 Scientific names are based on the Integrated Taxonomic Information System (ITIS). species Mesoplodon densirostris Blainville's beaked whale notPlanned Jessica Ward Naval Undersea Warfare Center Primary contact jessica.ward@navy.mil NA NA NA Jessica Ward owner NA zd_722 2025-07-31T15:32:53-04:00 dataset Ward, J. 2011. DECAF - AUTEC Beaked Whales - Multiple Sensors - DTag Seafloor array presence. Version 1.0.0. Dataset published in OBIS-SEAMAP. https://doi.org/10.82144/163f3240. OBIS-SEAMAP Dataset Page UTF-8 Interactive map https://seamap.env.duke.edu/dataset/722 FGDC Metadata UTF-8 XML https://seamap.env.duke.edu/dataset/722/fgdc EML Metadata UTF-8 XML https://seamap.env.duke.edu/dataset/722/eml OBIS-SEAMAP zd_722 zd_722 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.