title: Listening to the Deep: live monitoring of ocean noise and cetacean acoustic signals.
abstract: The development and broad use of passive acoustic monitoring techniques have the potential to help assessing the large-scale influence of artificial noise on marine organisms and ecosystems. Deep-sea observatories have the potential to play a key role in understanding these recent acoustic changes. LIDO (Listening to the Deep Ocean Environment) is an international project that is allowing the real-time long-term monitoring of marine ambient noise as well as marine mammal sounds at cabled and standalone observatories. Here, we present the overall development of the project and the use of passive acoustic monitoring (PAM) techniques to provide the scientific community with real-time data at large spatial and temporal scales. Special attention is given to the extraction and identification of high frequency cetacean echolocation signals given the relevance of detecting target species, e.g. beaked whales, in mitigation processes, e.g. during military exercises.
authors.affiliation: Laboratori d'Aplicacions Bioacústiques, Universitat Politècnica de Catalunya (UPC), Centre Tecnològic de Vilanova i la Geltrú, Avda. Rambla Exposició, Barcelona, Spain. michel.andre@upc.edu
authors.forename: M
authors.initials: M
authors.lastname: André
authors.forename: M
authors.initials: M
authors.lastname: van der Schaar
authors.forename: S
authors.initials: S
authors.lastname: Zaugg
authors.forename: L
authors.initials: L
authors.lastname: Houégnigan
authors.forename: A M
authors.initials: AM
authors.lastname: Sánchez
authors.forename: J V
authors.initials: JV
authors.lastname: Castell
mesh_terms: D000162:Acoustics; D000818:Animals; D001307:Auditory Perception; D004455:Echolocation; D004784:Environmental Monitoring / Q000295:instrumentation / Q000379:methods*; D009622:Noise / Q000009:adverse effects* / Q000517:prevention & control; D009792:Oceans and Seas; D014828:Vocalization, Animal; D014907:Whales / Q000502:physiology*