Bryde's whale localized acoustic detections off Kauai 2013-2022
Citation
Guazzo R, OBIS-SEAMAP (2024). Bryde's whale localized acoustic detections off Kauai 2013-2022. OBIS-SEAMAP. Occurrence dataset https://doi.org/10.3389/fmars.2024.1305505 accessed via GBIF.org on 2024-12-13.Description
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. Supplemental information: 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.Purpose
Not available
Sampling Description
Study Extent
NASampling
NAMethod steps
- NA
Additional info
marine, harvested by iOBISTaxonomic Coverages
Scientific names are based on the Integrated Taxonomic Information System (ITIS).
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Balaenoptera edenicommon name: Eden's whale rank: species
Geographic Coverages
Hawaii,Kauai,Pacific
Bibliographic Citations
Contacts
Regina Guazzooriginator
position: Primary contact
Naval Information Warfare Center Pacific
email: rguazzo@ucsd.edu
OBIS-SEAMAP
metadata author
Marine Geospatial Ecology Lab, Duke University
A328 LSRC building
Durham
27708
NC
US
email: seamap-contact@duke.edu
homepage: https://seamap.env.duke.edu
OBIS-SEAMAP
distributor
Marine Geospatial Ecology Lab, Duke University
A328 LSRC building
Durham
27708
NC
US
email: seamap-contact@duke.edu
homepage: https://seamap.env.duke.edu
Regina Guazzo
owner
position: Primary contact
Naval Information Warfare Center Pacific
email: rguazzo@ucsd.edu
Regina Guazzo
administrative point of contact
position: Primary contact
Naval Information Warfare Center Pacific
email: rguazzo@ucsd.edu