Geographic distribution of the Cross Seamount beaked whale based on acoustic detections

McCullough, J. L. K.; Henderson, E. E.; Trickey, J. S.; Barlow, J.; Baumann-Pickering, S.; Manzano-Roth, R.; Alongi, G.; Martin, S.; Fregosi, S.; Mellinger, D. K.; Klinck, H.; Szesciorka, A. R.; Oleson, E. M.

doi:10.1111/mms.13061

i

Geographic distribution of the Cross Seamount beaked whale based on acoustic detections

2023
By McCullough, J. L. K. ; Henderson, E. E. ; Trickey, J. S. ; ...

Details

Journal Title:

Marine Mammal Science
Personal Author:

McCullough, J. L. K. ; Henderson, E. E. ; Trickey, J. S. ; Barlow, J. ; Baumann-Pickering, S. ; Manzano-Roth, R. ; Alongi, G. ; Martin, S. ; Fregosi, S. ; Mellinger, D. K. ; Klinck, H. ; Szesciorka, A. R. ; Oleson, E. M.
NOAA Program & Office:

NMFS (National Marine Fisheries Service) ; SWFSC (Southwest Fisheries Science Center) ; PIFSC (Pacific Islands Fisheries Science Center) ; OAR (Oceanic and Atmospheric Research) ; PMEL (Pacific Marine Environmental Laboratory) ; CIMERS (Cooperative Institute for Marine Ecosystem and Resources Studies)
Description:

Beaked whales produce frequency-modulated echolocation pulses that appear to be species-specific, allowing passive acoustic monitoring to play a role in understanding spatio-temporal patterns. The Cross Seamount beaked whale is known only from its unique echolocation signal (BWC) with no confirmed species identification. This beaked whale spans the Pacific Ocean from the Mariana Archipelago to Baja California, Mexico, south to the equator, but only as far north as latitude 29°N. Within these warm waters, 92% of BWC detections occurred at night, 6% during crepuscular periods, and only 2% during daylight hours. Detections of BWC signals on drifting recorders with a vertical hydrophone array at 150 m depth demonstrated that foraging often occurred shallow in the water column (<150 m). No other species of beaked whale to date has been documented foraging in waters this shallow. Given their nocturnal, shallow foraging dives, this species appears to prefer prey that may be available in the water column only during those hours. The foraging behavior of Cross Seamount beaked whales appears to be unique among all beaked whales, and these findings contribute additional ecological and acoustic information which can help guide future efforts to identify this cryptic whale.
Keywords:

Beaked Whales Cetacea Echolocation (Physiology) Beaked Whales BWC Cetaceans Cross Seamount Beaked Whale Passive Acoustic Monitoring
Source:

Mar Mam Sci. 2023; 1–20
DOI:

https://doi.org/10.1111/mms.13061
Format:

PDF
Document Type:

Journal Article
License:

https://creativecommons.org/publicdomain/zero/1.0/
Rights Information:

CC0 Public Domain
Compliance:

Submitted
Main Document Checksum:

urn:sha256:1994c92ca9da8a45e31bd6e4d9e474550f742b5db535b126377550b330b2a9d2
Download URL:

https://repository.library.noaa.gov/view/noaa/55765/noaa_55765_DS1.pdf
File Type:

[PDF - 7.30 MB ]

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