Contextual rhythmic analysis of beaked whale clicks for passive acoustic identification.

2010 ◽  
Vol 127 (3) ◽  
pp. 2004-2004
Author(s):  
Natalia Sidorovskaia ◽  
Philip Schexnayder ◽  
George E. Ioup ◽  
Juliette W. Ioup ◽  
Christopher O. Tiemann ◽  
...  
Keyword(s):  
Beaked Whale ◽  
Acoustic Identification ◽  
Passive Acoustic

Passive acoustic monitoring using a towed hydrophone array results in identification of a previously unknown beaked whale habitat

2013 ◽  
Vol 134 (3) ◽  
pp. 2589-2595 ◽  
Author(s):  
Tina M. Yack ◽  
Jay Barlow ◽  
John Calambokidis ◽  
Brandon Southall ◽  
Shannon Coates
Keyword(s):  
Acoustic Monitoring ◽  
Beaked Whale ◽  
Passive Acoustic Monitoring ◽  
Passive Acoustic ◽  
Hydrophone Array

Passive acoustic beaked whale surveys using gliders off Southern California

2019 ◽  
Vol 146 (4) ◽  
pp. 2770-2770
Author(s):  
David K. Mellinger ◽  
Sharon L. Nieukirk ◽  
Selene Fregosi
Keyword(s):  
Southern California ◽  
Beaked Whale ◽  
Passive Acoustic

Beaked whale (Mesoplodon densirostris) passive acoustic detection in increasing ambient noise

2011 ◽  
Vol 129 (2) ◽  
pp. 662-669 ◽  
Author(s):  
Jessica Ward ◽  
Susan Jarvis ◽  
David Moretti ◽  
Ronald Morrissey ◽  
Nancy DiMarzio ◽  
...  
Keyword(s):  
Ambient Noise ◽  
Acoustic Detection ◽  
Beaked Whale ◽  
Passive Acoustic

scholarly journals Omnidirectional passive acoustic identification tags for underwater navigation

2020 ◽  
Vol 147 (6) ◽  
pp. EL517-EL522
Author(s):  
Aprameya Satish ◽  
David Trivett ◽  
Karim G. Sabra
Keyword(s):  
Underwater Navigation ◽  
Identification Tags ◽  
Acoustic Identification ◽  
Passive Acoustic

scholarly journals Using passive acoustic monitoring to document the distribution of beaked whale species in the western North Atlantic Ocean

2017 ◽  
Vol 74 (12) ◽  
pp. 2098-2109 ◽  
Author(s):  
Joy E. Stanistreet ◽  
Douglas P. Nowacek ◽  
Simone Baumann-Pickering ◽  
Joel T. Bell ◽  
Danielle M. Cholewiak ◽  
...  
Keyword(s):  
Atlantic Ocean ◽  
North Atlantic ◽  
North Atlantic Ocean ◽  
Anthropogenic Impacts ◽  
Acoustic Monitoring ◽  
Latitudinal Gradients ◽  
Beaked Whale ◽  
Passive Acoustic Monitoring ◽  
Beaked Whales ◽  
Passive Acoustic

Little is known about the ecology of many beaked whale species, despite concerns raised by mass strandings linked to certain sources of anthropogenic noise. Here, we used passive acoustic monitoring to examine spatial and temporal patterns in beaked whale occurrence at six locations along the continental slope in the western North Atlantic Ocean. We analyzed 2642 days of recordings collected between 2011 and 2015, and identified echolocation signals from northern bottlenose whales (Hyperoodon ampullatus), Cuvier’s (Ziphius cavirostris), Sowerby’s (Mesoplodon bidens), Gervais’, (Mesoplodon europaeus), and Blainville’s (Mesoplodon densirostris) beaked whales, and one signal type of unknown origin. We recorded multiple species at each site, with detections generally occurring year-round, and observed latitudinal gradients and site-specific variation in relative species occurrence. Notably, we regularly detected Cuvier’s beaked whales in a region where they have not been commonly observed, and discovered potential habitat partitioning among Cuvier’s and Gervais’ beaked whales within their overlapping ranges. This information on the distribution and seasonal occurrence of North Atlantic beaked whale species offers new insight into patterns of habitat use, and provides a year-round baseline from which to assess potential anthropogenic impacts.

scholarly journals Effective beam pattern of the Blainville's beaked whale (Mesoplodon densirostris) and implications for passive acoustic monitoring

2013 ◽  
Vol 133 (3) ◽  
pp. 1770-1784 ◽  
Author(s):  
Jessica Ward Shaffer ◽  
David Moretti ◽  
Susan Jarvis ◽  
Peter Tyack ◽  
Mark Johnson
Keyword(s):  
Acoustic Monitoring ◽  
Beam Pattern ◽  
Beaked Whale ◽  
Passive Acoustic Monitoring ◽  
Passive Acoustic ◽  
Effective Beam

scholarly journals Acoustic Censusing and Individual Identification of Birds in the Wild

2021 ◽  
Author(s):  
Carol L. Bedoya ◽  
Laura E. Molles
Keyword(s):  
Population Size ◽  
Fuzzy Classification ◽  
Individual Identification ◽  
Vocal Individuality ◽  
Neuro Fuzzy ◽  
In The Wild ◽  
Acoustic Censusing ◽  
Acoustic Identification ◽  
Using Data ◽  
Passive Acoustic

Avian vocal individuality carries information that can be utilized as an alternative to physical tagging of individuals. However, it is rarely used in conservation tasks despite rapidly-expanding use of passive acoustic monitoring techniques. Reliable acoustic individual recognizers and accurate quantifiers of population size remain elusive, which discourages the use of vocal individuality for monitoring, wildlife management, and ecological research. We propose a neuro-fuzzy framework that allows discrimination of individuals by their calls, the discovery of unexpected individuals in a set of recordings, and estimation of population size using solely sound. Our method, tested using data collected in the wild, allows rapid individual identification and even acoustic censusing without prior information from the recorded individuals. We achieve this by integrating a fuzzy classification and clustering methodology (LAMDA) into a Convolutional Deep Clustering Neural Network (CDCN). Our approach will benefit monitoring for conservation, and paves the way towards robust individual acoustic identification in species whose handling is time-consuming, culturally or ethically problematic, or logistically difficult.

scholarly journals Co-occurrence of beaked whale strandings and naval sonar in the Mariana Islands, Western Pacific

2020 ◽  
Vol 287 (1921) ◽  
pp. 20200070 ◽  
Author(s):  
Anne E. Simonis ◽  
Robert L. Brownell ◽  
Bruce J. Thayre ◽  
Jennifer S. Trickey ◽  
Erin M. Oleson ◽  
...  
Keyword(s):  
Mariana Islands ◽  
Beaked Whale ◽  
Acoustic Activity ◽  
Active Sonar ◽  
History Of ◽  
Antisubmarine Warfare ◽  
Beaked Whales ◽  
Ziphius Cavirostris ◽  
Passive Acoustic ◽  
Mass Stranding

Mid-frequency active sonar (MFAS), used for antisubmarine warfare (ASW), has been associated with multiple beaked whale (BW) mass stranding events. Multinational naval ASW exercises have used MFAS offshore of the Mariana Archipelago semi-annually since 2006. We report BW and MFAS acoustic activity near the islands of Saipan and Tinian from March 2010 to November 2014. Signals from Cuvier's ( Ziphius cavirostris) and Blainville's beaked whales ( Mesoplodon densirostris ), and a third unidentified BW species, were detected throughout the recording period. Both recorders documented MFAS on 21 August 2011 before two Cuvier's beaked whales stranded on 22–23 August 2011. We compared the history of known naval operations and BW strandings from the Mariana Archipelago to consider potential threats to BW populations. Eight BW stranding events between June 2006 and January 2019 each included one to three animals. Half of these strandings occurred during or within 6 days after naval activities, and this co-occurrence is highly significant. We highlight strandings of individual BWs can be associated with ASW, and emphasize the value of ongoing passive acoustic monitoring, especially for beaked whales that are difficult to visually detect at sea. We strongly recommend more visual monitoring efforts, at sea and along coastlines, for stranded cetaceans before, during and after naval exercises.

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