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Distinctions in Sound Patterns of Calls by Killer Whales (Orcinus Orca) from Analysis of Computed Sound Features

Distinctions in Sound Patterns of Calls by Killer Whales (Orcinus Orca) from Analysis of Computed Sound Features
Author: William A. Watkins
Publisher:
Total Pages: 41
Release: 1998
Genre:
ISBN:

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Calls of killer whales, Orcinus Orca, were analyzed using computed sound features to classify sound patterns and identify call similarities. Calls were classified and separated according to the pod/family group within clans identified previously by John Ford (U. BC) in the Vancouver whale populations. Acoustic characteristics of the same call type from different individuals were extremely similar, so that discriminating these different sounds was the goal. The WHOl AcouStat program and associated database systems were used to define numerical statistics for each call, and then, these were compared to sort and classify the sounds.


Distinctions in Sound Patterns of Calls by Killer Whales (Orcinus Orca) from Analysis of Computed Sound Features

Distinctions in Sound Patterns of Calls by Killer Whales (Orcinus Orca) from Analysis of Computed Sound Features
Author: William A. Watkins
Publisher:
Total Pages: 0
Release: 1998
Genre: Bioacoustics
ISBN:

Download Distinctions in Sound Patterns of Calls by Killer Whales (Orcinus Orca) from Analysis of Computed Sound Features Book in PDF, ePub and Kindle

Calls of killer whales, Orcinus Orca, were analyzed using computed sound features to classify sound patterns and identify call similarities. Calls were classified and separated according to the pod/family group within clans identified previously by John Ford (U. BC) in the Vancouver whale populations. Acoustic characteristics of the same call type from different individuals were extremely similar, so that discriminating these different sounds was the goal. The WHOl AcouStat program and associated database systems were used to define numerical statistics for each call, and then, these were compared to sort and classify the sounds.


Analysis of the Vocalizations of Orcinus Orca in Response to Anthropogenic Noise

Analysis of the Vocalizations of Orcinus Orca in Response to Anthropogenic Noise
Author: Carolyn Elizabeth Talus
Publisher:
Total Pages: 264
Release: 2000
Genre: Killer whale
ISBN:

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"Underwater noise created by vessel traffic in the world's oceans may be detrimental to marine life that relies on acoustic senses for survival. An analytical study was completed which examined changes in vocal behavior of subpod A36, killer whales (Orcinus orca) that reside off Vancouver Island. The average call rate of each call type was calculated from the recordings, and call rates were found to significantly decrease in the presence of vessel noise. Structural characteristics of specific call types such as differences in frequency, duration, and harmonics were also examined and statistically compared with and without boat noise. Differences found include a decreased number of harmonics in the N5 call, and a more peaked distribution of the average frequency of the first harmonic of the N4 call when associated with vessel noise. The significance of the result relative to the possible disturbance of these killer whales is uncertain"--Leaf iii.


Maintaining Contact

Maintaining Contact
Author: Patrick J. O. Miller
Publisher:
Total Pages: 614
Release: 2000
Genre: Animal communication
ISBN:

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Orcas of the Gulf

Orcas of the Gulf
Author: Gerard Gormley
Publisher: iUniverse
Total Pages: 222
Release: 2000-08
Genre: Killer whale
ISBN: 0595011187

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Book Description: 揙rcas of the Gulf will be a pleasure to anyone who wants to explore the realities of nature. Mr. Gormley's awe and respect for these magnificent whales is shared with us as a small pod of orca pass through the familiar waters off New England. We find ourselves enveloped in the interlocked, interwoven spectrum of the sea; everyday life to the orca, white water drama and magical beauty to Man. Much seems incredible, impossible, even mythical, yet the author has included every available bit of science in his exciting and educational narrative. He takes us a few steps farther than science has yet gone with common sense and realism, challenging the scientists to discover the full world of the orca. His narrative theories on perception, communication, pod society and chillingly realistic assessment of human impact are most interesting. The values and perceptions expressed in this work are not human, but they may just be the orca's, and we can all learn from that.?/p> -William W. Rossiter, Vice President Cetacean Society International Author bio: Gerard Gormley lives in Manchester-by-the-Sea, Massachusetts, where he studies sea life, especially cetaceans, as an avocation. His previous natural history, A Dolphin Summer, won broad critical acclaim for its artistic and scientific merit. His third nature book, about humpback whales, is in progress. Formerly a submariner and science writer, Mr. Gormley supplements his writing income by selling collectible books over the Internet.