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A first vocal repertoire characterisation of long-finned pilot whales (Globicephala melas) in the Mediterranean Sea: a machine learning approach
Marion Poupard,
Paul Best,
Jay Morgan 
,
Gianni Pavan,
Hervé Glotin
,
Gianni Pavan,
Hervé Glotin
Royal Society Open Science
Swansea University Author:
Jay Morgan
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Abstract
The acoustic repertoires of long-finned pilot whales (Globicephala melas) in the Mediterranean Sea are poorly understood. This study aims to create a catalogue of calls, analyse acoustic parameters, and propose a classification tree for future research. An acoustic database was compiled using record...
| Published in: | Royal Society Open Science |
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| ISSN: | 2054-5703 |
| Published: |
The Royal Society
2024
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| Online Access: |
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| URI: | https://cronfa.swan.ac.uk/Record/cronfa67703 |
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| Abstract: |
The acoustic repertoires of long-finned pilot whales (Globicephala melas) in the Mediterranean Sea are poorly understood. This study aims to create a catalogue of calls, analyse acoustic parameters, and propose a classification tree for future research. An acoustic database was compiled using recordings from the Alboran Sea, Gulf of Lion, and Ligurian Sea (Western Mediterranean Basin) between 2008 and 2022, totalling 640 calls. Using a deep neural network, the calls were clustered based on frequency contour similarities, leading to the identification of 40 distinct call types defining the local population's vocal repertoire. These categories encompass pulsed calls with varied complexities, from simplistic to highly intricate structures comprising multiple elements and segments. |
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| College: |
College of Science |