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Use of ecoacoustics to characterize the marine acoustic environment off the North Atlantic French Saint-Pierre-et-Miquelon archipelago

Use of ecoacoustics to characterize the marine acoustic environment off the North Atlantic French Saint-Pierre-et-Miquelon archipelago
Use of ecoacoustics to characterize the marine acoustic environment off the North Atlantic French Saint-Pierre-et-Miquelon archipelago
Visual observations of the marine biodiversity can be difficult in specific areas for different reasons, including weather conditions or a lack of observers. In such conditions, passive acoustics represents a potential alternative approach. The objective of this work is to demonstrate how information about marine biodiversity can be obtained via detailed analysis of the underwater acoustic environment. This paper presents the first analysis of the Saint-Pierre-and-Miquelon (SPM) archipelago underwater acoustic environment. In order to have a better knowledge about the marine biodiversity of SPM, acoustic recordings were sampled at different time periods to highlight seasonal variations over several years. To extract information from these acoustic recordings, standard soundscape and ecoacoustic analysis workflow was used to compute acoustic metrics such as power spectral density, third-octave levels, acoustic complexity index, and sound pressure levels. The SPM marine acoustic environment can be divided into three main sound source classes: biophony, anthrophony, and geophony. Several cetacean species were encountered in the audio recordings including sperm whales (which were detected by visual observations and strandings of 3 males in 2014), humpback, and blue whales.
Acoustic Environment, Underwater, ecoacoustics, noise levels
177
Nguyen Hong Duc, Paul Marie Duy-Anh
2548f110-ad48-4f9b-aaef-2c8b588f7d21
Cazau, Dorian
e69f69bc-fa1b-4c91-b8b3-0e0dde29855b
White, Paul
2dd2477b-5aa9-42e2-9d19-0806d994eaba
Gerard, Odile
77b524c5-5597-4c6c-958b-c127600fe482
Detcheverry, Joel
15b861a5-db8d-42f2-b395-fedb1fecefa1
Urtizberea, Frank
b79cfc82-faea-480e-9aff-6cafb3cbdcfc
Adam, Olivier
d4c724ac-1da0-4920-ba69-a8382cbbad2a
Nguyen Hong Duc, Paul Marie Duy-Anh
2548f110-ad48-4f9b-aaef-2c8b588f7d21
Cazau, Dorian
e69f69bc-fa1b-4c91-b8b3-0e0dde29855b
White, Paul
2dd2477b-5aa9-42e2-9d19-0806d994eaba
Gerard, Odile
77b524c5-5597-4c6c-958b-c127600fe482
Detcheverry, Joel
15b861a5-db8d-42f2-b395-fedb1fecefa1
Urtizberea, Frank
b79cfc82-faea-480e-9aff-6cafb3cbdcfc
Adam, Olivier
d4c724ac-1da0-4920-ba69-a8382cbbad2a

Nguyen Hong Duc, Paul Marie Duy-Anh, Cazau, Dorian, White, Paul, Gerard, Odile, Detcheverry, Joel, Urtizberea, Frank and Adam, Olivier (2021) Use of ecoacoustics to characterize the marine acoustic environment off the North Atlantic French Saint-Pierre-et-Miquelon archipelago. Journal of Marine Science and Engineering, 9 (2), 177, [177]. (doi:10.3390/jmse9020177).

Record type: Article

Abstract

Visual observations of the marine biodiversity can be difficult in specific areas for different reasons, including weather conditions or a lack of observers. In such conditions, passive acoustics represents a potential alternative approach. The objective of this work is to demonstrate how information about marine biodiversity can be obtained via detailed analysis of the underwater acoustic environment. This paper presents the first analysis of the Saint-Pierre-and-Miquelon (SPM) archipelago underwater acoustic environment. In order to have a better knowledge about the marine biodiversity of SPM, acoustic recordings were sampled at different time periods to highlight seasonal variations over several years. To extract information from these acoustic recordings, standard soundscape and ecoacoustic analysis workflow was used to compute acoustic metrics such as power spectral density, third-octave levels, acoustic complexity index, and sound pressure levels. The SPM marine acoustic environment can be divided into three main sound source classes: biophony, anthrophony, and geophony. Several cetacean species were encountered in the audio recordings including sperm whales (which were detected by visual observations and strandings of 3 males in 2014), humpback, and blue whales.

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More information

Accepted/In Press date: 4 February 2021
e-pub ahead of print date: 9 February 2021
Published date: February 2021
Additional Information: Funding Information: PhD is granted by the the French Defence Procurement Agency (Direction G?n?rale des Armements). Publisher Copyright: © 2021 by the authors. Licensee MDPI, Basel, Switzerland.
Keywords: Acoustic Environment, Underwater, ecoacoustics, noise levels

Identifiers

Local EPrints ID: 447037
URI: http://eprints.soton.ac.uk/id/eprint/447037
PURE UUID: 19ddb671-21d4-4433-b20c-9e1aab54949f
ORCID for Paul White: ORCID iD orcid.org/0000-0002-4787-8713

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Date deposited: 02 Mar 2021 17:31
Last modified: 17 Mar 2024 02:36

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Contributors

Author: Paul Marie Duy-Anh Nguyen Hong Duc
Author: Dorian Cazau
Author: Paul White ORCID iD
Author: Odile Gerard
Author: Joel Detcheverry
Author: Frank Urtizberea
Author: Olivier Adam

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