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

Joël Detcheverry¹  Olivier Adam²  PaulNguyen Hong Duc²  Odile Gérard³  Frank Urtizberea⁴  PaulR. White⁵  Dorian Cazau⁶ 

[1] Association SPM Frag’îles, 97500 St Pierre et Miquelon, France;CNRS, Institut Jean Le Rond d’Alembert, Sorbonne Université, UMR 7190, F-75005 Paris, France;Direction Générale de l’Armement Techniques Navales, 83000 Toulon, France;Direction des Territoires, de l’Alimentation et de la Mer (DTAM), Service Agriculture, Alimentation, Eau et Biodiversité, 97500 St Pierre et Miquelon, France;Institute of Sound and Vibration Research, University of Southampton, Southampton SO17 1BJ, UK;Lab-Sticc, ENSTA Bretagne, CEDEX 9, 29806 Brest, France;

关键词: underwater;    acoustic environment;    ecoacoustics;    noise levels;   

DOI  :  10.3390/jmse9020177

来源: DOAJ

【 摘 要 】

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.

【 授权许可】

Unknown