PMID- 28883086
OWN - NLM
STAT- MEDLINE
DCOM- 20180522
LR  - 20181003
IS  - 1477-9145 (Electronic)
IS  - 0022-0949 (Linking)
VI  - 220
IP  - Pt 22
DP  - 2017 Nov 15
TI  - Characterizing Chilean blue whale vocalizations with DTAGs: a test of using tag 
      accelerometers for caller identification.
PG  - 4119-4129
LID - 10.1242/jeb.151498 [doi]
AB  - Vocal behavior of blue whales (Balaenoptera musculus) in the Gulf of Corcovado, 
      Chile, was analysed using both audio and accelerometer data from digital acoustic 
      recording tags (DTAGs). Over the course of three austral summers (2014, 2015 and 
      2016), seventeen tags were deployed, yielding 124 h of data. We report the 
      occurrence of Southeast Pacific type 2 (SEP2) calls, which exhibit peak 
      frequencies, durations and timing consistent with previous recordings made using 
      towed and moored hydrophones. We also describe tonal downswept (D) calls, which 
      have not been previously described for this population. As being able to 
      accurately assign vocalizations to individual whales is fundamental for studying 
      communication and for estimating population densities from call rates, we further 
      examine the feasibility of using high-resolution DTAG accelerometers to identify 
      low-frequency calls produced by tagged blue whales. We cross-correlated acoustic 
      signals with simultaneous tri-axial accelerometer readings in order to analyse 
      the phase match as well as the amplitude of accelerometer signals associated with 
      low-frequency calls, which provides a quantitative method of determining if a 
      call is associated with a detectable acceleration signal. Our results suggest 
      that vocalizations from nearby individuals are also capable of registering 
      accelerometer signals in the tagged whale's DTAG record. We cross-correlate 
      acceleration vectors between calls to explore the possibility of using signature 
      acceleration patterns associated with sounds produced within the tagged whale as 
      a new method of identifying which accelerometer-detectable calls originate from 
      the tagged animal.
CI  - (c) 2017. Published by The Company of Biologists Ltd.
FAU - Saddler, Mark R
AU  - Saddler MR
AUID- ORCID: 0000-0002-2698-7275
AD  - Biology Department, Woods Hole Oceanographic Institution, Woods Hole, MA 
      02543-1050, USA msaddler@uchicago.edu.
AD  - The College, The University of Chicago, Chicago, IL 60637, USA.
FAU - Bocconcelli, Alessandro
AU  - Bocconcelli A
AD  - Applied Ocean Physics and Engineering Department, Woods Hole Oceanographic 
      Institution, Woods Hole, MA 02543-1050, USA.
FAU - Hickmott, Leigh S
AU  - Hickmott LS
AD  - Sea Mammal Research Unit, Scottish Oceans Institute, University of St Andrews, St 
      Andrews KY16 8LB, UK.
AD  - Open Ocean Consulting, 3(B) Oaklands Road, Petersfield, Hampshire GU32 2EY, UK.
FAU - Chiang, Gustavo
AU  - Chiang G
AD  - Fundacion MERI, Av. Kennedy 5682, piso 2, Vitacura, 7650720 Santiago, Chile.
FAU - Landea-Briones, Rafaela
AU  - Landea-Briones R
AD  - Fundacion MERI, Av. Kennedy 5682, piso 2, Vitacura, 7650720 Santiago, Chile.
FAU - Bahamonde, Paulina A
AU  - Bahamonde PA
AD  - Fundacion MERI, Av. Kennedy 5682, piso 2, Vitacura, 7650720 Santiago, Chile.
FAU - Howes, Gloria
AU  - Howes G
AD  - Fundacion MERI, Av. Kennedy 5682, piso 2, Vitacura, 7650720 Santiago, Chile.
FAU - Segre, Paolo S
AU  - Segre PS
AD  - Department of Biology, Hopkins Marine Station, Stanford University, Pacific 
      Grove, CA 93950, USA.
FAU - Sayigh, Laela S
AU  - Sayigh LS
AD  - Biology Department, Woods Hole Oceanographic Institution, Woods Hole, MA 
      02543-1050, USA.
AD  - School of Cognitive Science, Hampshire College, Amherst, MA 01002, USA.
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20170907
PL  - England
TA  - J Exp Biol
JT  - The Journal of experimental biology
JID - 0243705
SB  - IM
MH  - Accelerometry
MH  - Acoustics
MH  - Animals
MH  - Balaenoptera/*physiology
MH  - Chile
MH  - Population Density
MH  - Seasons
MH  - *Sound
MH  - *Vocalization, Animal
OTO - NOTNLM
OT  - Acoustic behavior
OT  - Balaenoptera musculus
OT  - Cross-correlation
OT  - D call
OT  - DTAG
OT  - Downsweep call
COIS- Competing interestsThe authors declare no competing or financial interests.
EDAT- 2017/09/09 06:00
MHDA- 2018/05/23 06:00
CRDT- 2017/09/09 06:00
PHST- 2016/10/17 00:00 [received]
PHST- 2017/09/05 00:00 [accepted]
PHST- 2017/09/09 06:00 [pubmed]
PHST- 2018/05/23 06:00 [medline]
PHST- 2017/09/09 06:00 [entrez]
AID - jeb.151498 [pii]
AID - 10.1242/jeb.151498 [doi]
PST - ppublish
SO  - J Exp Biol. 2017 Nov 15;220(Pt 22):4119-4129. doi: 10.1242/jeb.151498. Epub 2017 
      Sep 7.