Spatial and temporal trends in fin whale vocalizations recorded in the NE Pacific Ocean between 2003-2013

Weirathmueller, Michelle J.; Stafford, Kathleen M.; Wilcock, William S. D.; Hilmo, Rose S.; Dziak, Robert P.; Tréhu, Anne M.

doi:10.1371/journal.pone.0186127

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Spatial and temporal trends in fin whale vocalizations recorded in the NE Pacific Ocean between 2003-2013

2017
By Weirathmueller, Michelle J. ; Stafford, Kathleen M. ; Wilcock, William S. D. ; ...
Source: PLOS ONE. 2017; 12(10): e0186127.

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Details:

Alternative Title:

Spatial and temporal trends in fin whale vocalizations recorded in the NE Pacific Ocean between 2003-2013
Journal Title:

PLOS ONE
Personal Author:

Weirathmueller, Michelle J. ; Stafford, Kathleen M. ; Wilcock, William S. D. ; Hilmo, Rose S. ; Dziak, Robert P. ; ... More +

Weirathmueller, Michelle J. ; Stafford, Kathleen M. ; Wilcock, William S. D. ; Hilmo, Rose S. ; Dziak, Robert P. ; Tréhu, Anne M. Less -
NOAA Program & Office:

OAR (Oceanic and Atmospheric Research) ; PMEL (Pacific Marine Environmental Laboratory)

OAR (Oceanic and Atmospheric Research) ; PMEL (Pacific Marine Environmental Laboratory) Less -
Description:

In order to study the long-term stability of fin whale (Balaenoptera physalus) singing behavior, the frequency and inter-pulse interval of fin whale 20 Hz vocalizations were observed over 10 years from 2003-2013 from bottom mounted hydrophones and seismometers in the northeast Pacific Ocean. The instrument locations extended from 40 degrees N to 48 degrees N and 130 degrees W to 125 degrees W with water depths ranging from 1500-4000 m. The inter-pulse interval (IPI) of fin whale song sequences was observed to increase at a rate of 0.54 seconds/year over the decade of observation. During the same time period, peak frequency decreased at a rate of 0.17 Hz/year. Two primary call patterns were observed. During the earlier years, the more commonly observed pattern had a single frequency and single IPI. In later years, a doublet pattern emerged, with two dominant frequencies and IPIs. Many call sequences in the intervening years appeared to represent a transitional state between the two patterns. The overall trend was consistent across the entire geographical span, although some regional differences exist. Understanding changes in acoustic behavior over long time periods is needed to help establish whether acoustic characteristics can be used to help determine population identity in a widely distributed, difficult to study species such as the fin whale.
Keywords:

[+]

Blue Whale Finback Whale Humpback Whitefish Science Technology Transmission Arts Whale Sounds
Source:

PLOS ONE. 2017; 12(10): e0186127.
DOI:

https://doi.org/10.1371/journal.pone.0186127
Pubmed Central ID:

PMC5657628
Document Type:

Journal Article
Place as Subject:

Northeastern States ; Pacific Area ; Atlantic Ocean

Northeastern States ; Pacific Area ; Atlantic Ocean Less -
Rights Information:

CC BY
Compliance:

PMC
Main Document Checksum:

[+]

urn:sha256:46adc8cec5d32612776b5592d6011f33803932bb182f847d8eac84f1aaf22408
Download URL:

/view/noaa/24854/noaa_24854_DS1.pdf
File Type:

Available data set

htm

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