10.82144/05f89069 209d4a39-7891-43ad-b7df-a134fa6c0349 https://seamap.env.duke.edu/dataset/2284 b267a13a-f251-4bc8-90cc-5ddbdca96ba8 zd_2284 ReginaGuazzoNaval Information Warfare Center PacificPrimary contact regina.guazzo@gmail.com 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 ReginaGuazzoNaval Information Warfare Center PacificPrimary contact regina.guazzo@gmail.com owner 2025-10-14 eng Original provider: Regina A. Guazzo, Naval Information Warfare Center Pacific Dataset credits: Naval Information Warfare Center Pacific Abstract: A unique acoustic call was identified and attributed to the Bryde’s whale in the central North Pacific in 2015, but little is known about the distribution, calling behavior, or swimming behavior of Bryde’s whales in the region. Acoustic detections attributed to Bryde’s whales were used to localize and track individual whales on the U.S. Pacific Missile Range Facility (PMRF) in Kaua‘i, Hawai‘i. This study included 150 acoustically derived tracks from recordings spanning the years 2011–2022 with recording effort in nearly every month. Bryde’s whale movement was examined relative to calendar year, day of year, hour of day, wind speed, and acoustic calling rate. Hidden Markov models were used to identify two kinematic states (slower, less directional movement and faster, more directional movement). The findings indicate that Bryde’s whales were more likely to travel in a faster and more directional state during the daytime than at night and between May and August when compared to other times of year. The along-track acoustic cue rate was examined for 118 tracks, and the findings indicate a possible lengthening of the median inter-call interval over the duration of the study period. These results are an important first step in understanding more about behavior in Bryde’s whales, a relatively understudied species. Marine BiologyPassive acoustic detectionMarine Animal SurveyMarine mammalsAcoustic precense/absenceOcean-based Platforms N/A 47 stationary hydrophones were used to detect. The monitoring effort for the 47 hydrophones were same. The locations of the hydrophones are rounded and approximate. This work is licensed under a Creative Commons Attribution Non Commercial (CC-BY-NC) 4.0 License. https://seamap.env.duke.edu/dataset/2284 Hawaii,Kauai,Pacific -160.049932 22.799936 22.799936 22.275024 2013-08-06 2022-06-07 Scientific names are based on the Integrated Taxonomic Information System (ITIS). speciesBalaenoptera edeniEden's whale notPlanned ReginaGuazzoNaval Information Warfare Center PacificPrimary contact regina.guazzo@gmail.com NA NA NA ReginaGuazzoowner NA 2025-10-14T14:22:57-04:00 dataset Guazzo, R. 2024. Bryde's whale localized acoustic detections off Kauai 2013-2022. Version 1.0.0. Dataset published in OBIS-SEAMAP. Data accessed on yyyy-mm-dd from https://seamap.env.duke.edu/dataset/2284. Helble TA, Alongi GC, Guazzo RA, Allhusen DR, Martin CR, Martin SW, Durbach IN and Henderson EE. 2024. Swimming and acoustic calling behavior attributed to Bryde’s whales in the central North Pacific. Frontiers in Marine Science11:1305505. OBIS-SEAMAP Dataset Page UTF-8 Interactive map https://seamap.env.duke.edu/dataset/2284 FGDC Metadata UTF-8 XML https://seamap.env.duke.edu/dataset/2284/fgdc EML Metadata UTF-8 XML https://seamap.env.duke.edu/dataset/2284/eml OBIS-SEAMAP zd_2284 zd_2284