Details:

Journal Title:
Marine Mammal Science
Personal Author:
Hill, Marie C. ; Bendlin, Andrea R. ; Van Cise, Amy M. ; Milette-Winfree, Aliza ; Ligon, Allan D. ; ... More +
Hill, Marie C. ; Bendlin, Andrea R. ; Van Cise, Amy M. ; Milette-Winfree, Aliza ; Ligon, Allan D. ; Ü, Adam C. ; Deakos, Mark H. ; Oleson, Erin M. Less -
NOAA Program & Office:
NMFS (National Marine Fisheries Service) ; SWFSC (Southwest Fisheries Science Center) ; PIFSC (Pacific Islands Fisheries Science Center) ; JIMAR (Joint Institute for Marine and Atmospheric Research)
NMFS (National Marine Fisheries Service) ; SWFSC (Southwest Fisheries Science Center) ; PIFSC (Pacific Islands Fisheries Science Center) ; JIMAR (Joint Institute for Marine and Atmospheric Research) Less -
Description:
Abstract Little is known about short-finned pilot whales (Globicephala macrorhynchus) in the western North Pacific outside of Japanese coastal waters. To expand understanding of short-finned pilot whale ecology in the region, we conducted small-boat surveys in 2010−2016 within the Mariana Archipelago to investigate individual associations, movements, spatial use, and dive behavior of short-finned pilot whales. We collected genetic, photo-identification, and satellite-tag data and identified 191 distinctive individuals. A preliminary social network diagram of photo-cataloged individuals revealed a main cluster that comprised 82% of individuals, representing all five mitochondrial DNA haplotypes identified within the population. Kernel density estimates for tagged short-finned pilot whales (n = 11) during summer were used to identify areas with the highest probability of use (10% probability density contour), core area (50%) and home range (95%). The area with highest probability of use by short-finned pilot whales was off the northwest side of Guam. Satellite tag data also suggest that some individuals are island-associated year-round. Data from five location-dive tags demonstrated that the short-finned pilot whales dove more often to intermediate depths at twilight and night, suggesting they may target prey that forage on the deep scattering layer as it migrates to and from the surface.
Source:
Marine Mammal Science, 35(3), 797-824.
DOI:
https://doi.org/10.1111/mms.12567
Document Type:
Journal Article
Rights Information:
Other
Compliance:
Submitted
Main Document Checksum:
[+]
urn:sha256:c81891d962b3195c8f562d7b2801bb6a2e650236c6eea0d92d5f0a746b18ae85
Download URL:
https://repository.library.noaa.gov/view/noaa/22197/noaa_22197_DS1.pdf
File Type:

Supporting Files

• No Additional Files

More +