Graphic summary
  • Show / hide key
  • Information


Scientific and technological production
  •  

1 to 16 of 16 results
  • Real-time monitoring of noise in cetacean acoustic niches

     Andre Sanchez, Michel; van der Schaar, Mike Connor Roger Malcolm; Zaugg, Serge Alain; Houégnigan, Ludwig; Sanchez Marrero, Antonio Miguel; Mas, Alex; Castell Balaguer, Joan Vicent
    Advances in experimental medicine and biology
    Date of publication: 2012
    Journal article

    Read the abstract Read the abstract View View Open in new window  Share Reference managers Reference managers Open in new window

    Sources of sound produced by human activities induce physical, physiological, and behavioral effects on marine fauna (mammals, reptiles, fish, and invertebrates), effects that can be diverse depending on the proximity to the signal source. These impacts include a reduction in the abundance of fish species of up to 50% in zones under exploration, changes in cetacean behavior and migration routes, and a distinct range of physical injuries in both marine vertebrates and invertebrates. There may be further long-term consequences due to chronic exposure, and sound can indirectly affect animals due to changes in the accessibility of prey, which may also suffer the adverse effects of acoustic pollution (Richardson et al. 1995). These damages could significantly impair the conservation of already endangered species that use acoustically contaminated areas for migratory routes, reproduction, and feeding.

  • Achieve QUieter Oceans by shipping noise footprint reduction

     van der Schaar, Mike Connor Roger Malcolm; Andre Sanchez, Michel; Sole Carbonell, Marta; Castell Balaguer, Joan Vicent; Houégnigan, Ludwig
    Participation in a competitive project

     Share

  • Access to the full text
    Listening to the Deep: Live monitoring of ocean noise and cetacean acoustic signals  Open access

     Andre Sanchez, Michel; van der Schaar, Mike Connor Roger Malcolm; Zaugg, Serge Alain; Houégnigan, Ludwig; Sánchez, A.M.; Castell Balaguer, Joan Vicent
    Marine pollution bulletin
    Date of publication: 2011
    Journal article

    Read the abstract Read the abstract Access to the full text Access to the full text Open in new window  Share Reference managers Reference managers Open in new window

    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 longterm 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.

  • Access to the full text
    Electronic upgrades on the second generation of an autonomous and portable cetacean auditory screening system  Open access

     Mas, Alex; Castell Balaguer, Joan Vicent; Del Rio Fernandez, Joaquin; van der Schaar, Mike Connor Roger Malcolm; Andre Sanchez, Michel
    International Workshop on Marine Technology
    Presentation's date: 2009
    Presentation of work at congresses

    Read the abstract Read the abstract Access to the full text Access to the full text Open in new window  Share Reference managers Reference managers Open in new window

    While noise is now considered a marine hazard that can directly affect cetaceans and induce a stranding, no clinical approach has yet introduced the detection of a possible hearing loss at a stranding site as a necessary practice. Here we present the second generation of an autonomous and portable auditory screening system for cetacean clinical and research purposes. This system is composed by two independent and autonomous modules that build a more versatile, lighter and interference isolated system. The improvement relies on the isolation between modules and their independency on many situations. The system is separated in two modules. The first one contains the low voltage biopotential amplification system and the acustic signal transmiter . The second module will activate only when needed for some frequencies and levels driving high voltage to the transducers thus avoiding interferences with the first module containing the low voltage amplifications system. The tool has been successfully tested for research purposes in captive dolphins and calibrated for a stranding site diagnoses operation.

  • Access to the full text
    Modelling the underwater noise associated to the construction and operation of offshore wind turbines  Open access

     Castell Balaguer, Joan Vicent; van der Schaar, Mike Connor Roger Malcolm; Mas, Alex; Zaugg, Serge Alain; Houégnigan, Ludwig; Morell Ybarz, Maria; Solé, Marta; Andre Sanchez, Michel
    International Workshop on Marine Technology
    Presentation's date: 2009
    Presentation of work at congresses

    Read the abstract Read the abstract Access to the full text Access to the full text Open in new window  Share Reference managers Reference managers Open in new window

    The operation and in particular the construction of offshore wind converters induce considerable underwater noise emissions. It is assumed that small whales and seals can be affected by noise from machines and vessels, piling and installation of the wind turbines. Piling, in particular using hydraulic hammers creates impulsive noise with considerable high energy levels. Currently, only little knowledge about the effects of different noises to marine life is available. Here, we present an ongoing project from the Laboratory of Applied Bioacoustics (Technical University of Catalonia): to simulate the generation, radiation and propagation of underwater noise; to develop forecasting hydro sound models of offshore wind converters and future noise reduction methods during pile driving; to determine the impact area of offshore wind farms; to allow the formulation of recommendations for acoustic emission thresholds; and to develop standard procedures for the determination and assessment of noise emissions.

  • Mozart i Fourier a la platja: Les matemàtiques al pentagrama

     Prat Farran, Joana d'Arc; Guardia Rubies, Jordi; Sanchez Lopez, Sergio; Hernandez Gomez, Maria de Los Angeles; Bernado Ortega, Miguel; Castell Balaguer, Joan Vicent
    Date: 2009-11-26
    Report

    View View Open in new window  Share Reference managers Reference managers Open in new window

  • Real-time acoustic monitoring of the deep-ocean environment

     Andre Sanchez, Michel; van der Schaar, Mike Connor Roger Malcolm; Castell Balaguer, Joan Vicent
    Acta acustica united with acustica
    Date of publication: 2008
    Journal article

     Share Reference managers Reference managers Open in new window

  • Real-time acoustic monitoring of the deep-ocean environment

     Andre Sanchez, Michel; Castell Balaguer, Joan Vicent; van der Schaar, Mike Connor Roger Malcolm
    Journal of the Acoustical Society of America
    Date of publication: 2008
    Journal article

     Share Reference managers Reference managers Open in new window

  • ESONET (LIDO - DEMOSTRATION MISSION)

     Andre Sanchez, Michel; van der Schaar, Mike Connor Roger Malcolm; Castell Balaguer, Joan Vicent; Zaugg, Serge Alain; Houégnigan, Ludwig; Sánchez, Antonio
    Participation in a competitive project

     Share

  • OdiSEA: an autonomous portable auditory screening unit for rapid assessment of hearing in cetaceans

     Delory, E; Del Rio Fernandez, Joaquin; Castell Balaguer, Joan Vicent; Schaar, Van Der M; Andre Sanchez, Michel
    Aquatic mammals
    Date of publication: 2007-01
    Journal article

     Share Reference managers Reference managers Open in new window

  • Identifying Cetacean Hearing Impairment at Stranding Sites

     Andre Sanchez, Michel; Delory, E; Degollada, E; Alonso, J M; Del Rio Fernandez, Joaquin; Schaar, Van Der M; Castell Balaguer, Joan Vicent; Morell, M
    Aquatic mammals
    Date of publication: 2007-01
    Journal article

     Share Reference managers Reference managers Open in new window

  • Dispositivo acústico pasivo de libreación de gas para la prevención del enmallamiento de cetéceos en artes de pesca

     Andre Sanchez, Michel; Castell Balaguer, Joan Vicent
    Participation in a competitive project

     Share

  • Efectos y control del ruido antropogénico en ecosistemas marinos (e-CREM)

     Castell Balaguer, Joan Vicent; Andre Sanchez, Michel
    Participation in a competitive project

     Share

  • European Seas Observatory NETwork (ESONET)

     Castell Balaguer, Joan Vicent
    Participation in a competitive project

     Share

  • 3D tracking and monitoring of sperm whales with passive acoustics and ambient noise imaging techniques

     Andre Sanchez, Michel; Schaar, Van Der M; Delory, E; Castell Balaguer, Joan Vicent; MAS, A
    International Congress on Maritime Technological Innovations and Research
    Presentation's date: 2007
    Presentation of work at congresses

     Share Reference managers Reference managers Open in new window

  • Improving left ventricle calculation from gammagraphic images using a Wiener filter

     Pladellorens Mallofre, Josep; Serrat, Joan; Castell Balaguer, Joan Vicent; Josefa, María Yzuel; Escofet Soteras, Jaume
    Physica medica
    Date of publication: 1997-01
    Journal article

     Share Reference managers Reference managers Open in new window