https://doi.org/10.82144/6c20ea6a https://seamap.env.duke.edu/dataset/535 Sofie Van Parijs NOAA Northeast Fisheries Science Center Primary contact sofie.vanparijs@noaa.gov http://www.nefsc.noaa.gov/psb/acoustics/index.html 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 Sofie Van Parijs NOAA Northeast Fisheries Science Center Primary contact sofie.vanparijs@noaa.gov http://www.nefsc.noaa.gov/psb/acoustics/index.html owner 2025-07-31 eng Original provider: NOAA Northeast Fisheries Science Center (NEFSC) Dataset credits: Sofie Van Parijs Abstract: The primary objectives of the survey were to: (1) determine the spatial distribution and abundance of cetaceans and turtles in the study region, (2) determine the spatial distribution and relative abundance of sea birds in the same region, and (3) use passive acoustics to record vocalizing cetaceans that will hopefully be used to improve the abundance estimates derived from the visual surveys. A secondary objective was to compare the distribution of these species with each other, physical characteristics, such as depth contours and water temperature, and biological characteristics, such as relative plankton distributions. Marine Biology Passive acoustic detection N/A Whistle is a software-based tonal sound detector developed by Douglas Gillespie for the International Fund for Animal Welfare. It was originally developed to detect tonal sounds from made by a wide range of odontocetes and also some anthropogenic noise sources. Whistle does not support species classification, background noise or other whistles mean that the whistle tracing algorithm is unable to link whistles where they overlap, thus most the detector output is a whistle fragments. Currently (2009), the latest implementation of Whistle is implemented in the <a href=http://www.pamguard.org>PAMGUARD software</a>. Additional attributes caveats: The ranges and bearings associated with these data have not been validated or corrected in any way so they may vary from fairly accurate to completely wrong. Counts refer to whistle detections, not animals, and the relation between these values is unknown. To the extent possible under law, the publisher has waived all rights to these data and has dedicated them to the Public Domain (CC0 1.0). Users may copy, modify, distribute and use the work, including for commercial purposes, without restriction. https://seamap.env.duke.edu/dataset/535 Oceans -74.074837 -65.657097 41.028084 37.244484 2004-06-24 2004-08-03 Scientific names are based on the Integrated Taxonomic Information System (ITIS). family Delphinidae Dolphins Dolphin species were detected aurally at 425 (26%) monitoring stations during Leg I and 220 (23%) during Leg II. The whistle detector (medium frequency tonal detector) detected a total of 3,340 whistle events and 273,915 whistle fragments. Long recordings of single species dolphin groups, for example common dolphin (<i>Delphinus delphis</i>), striped dolphin (<i>Stenella coruleoalba</i>) and pilot whale (<i>Globicephala spp.</i>), made during the course of these cruises can be used in subsequent statistical analyses to determine species-specific characteristics to improve automated species classification. notPlanned Sofie Van Parijs NOAA Northeast Fisheries Science Center Primary contact sofie.vanparijs@noaa.gov http://www.nefsc.noaa.gov/psb/acoustics/index.html NA NA NA Sofie Van Parijs owner NA zd_535 2025-07-31T14:19:28-04:00 dataset Van Parijs, S. 2013. NEFSC Marine Mammal Abundance Cruise 2004 Passive Acoustic Monitoring - Whistle Detections. Version 1.0.0. Dataset published in OBIS-SEAMAP. https://doi.org/10.82144/6c20ea6a. OBIS-SEAMAP Dataset Page UTF-8 Interactive map https://seamap.env.duke.edu/dataset/535 FGDC Metadata UTF-8 XML https://seamap.env.duke.edu/dataset/535/fgdc EML Metadata UTF-8 XML https://seamap.env.duke.edu/dataset/535/eml OBIS-SEAMAP zd_535 zd_535