http://hdl.handle.net/2117/3844 2013-05-21T14:57:41Z http://hdl.handle.net/2117/18537 Title: Biological and anthropogenic sound sources: effects and control in the European Seas Observatory Network (ESONET) Authors: André, Michel; Manuel Lázaro, Antonio; Dañobeitia, Juan José; Rolin, Jean-François; Person, Roland 2013-04-02T11:07:14Z http://hdl.handle.net/2117/16722 Title: Measurement of atmospheric neutrino oscillations with the ANTARES neutrino telescope Authors: Neff, M.; Nezri, E.; Palioselitis, D.; Giordano, V.; Pavalas, G.E.; Montaruli, T.; Gómez González, J.P.; Morganti, M.; Gleixner, A; Moscoso, L.; Guillard, G.; Motz, H.; Graf, K.; Payet, K.; Petrovic, J.; Astraatmadja, T.; Adrián-Martínez, S.; Fritsch, U.; Al Samarai, Imen; Fuda, J.-L.; Albert, A.; Galata, S.; André, Michel; Gay, P.; Anghinolfi, M.; Geyer, K.; Anton, G.; Giacomelli, G.; Anvar, S.; Ardid, M.; Richardt, C.; Richter, R.; Reed, C.; Riccobene, Giorgio; Folger, F.; Presani, E.; Flaminio, V.; Racca, C.; Ferry, s.; Popa, V.; Fehn, K.; Pradier, T.; Rivière, C.; Eberl, T.; Piatelli, P.; Emanuele, U.; Dorosti, Q.; Drouhin, D.; Escoffier, S.; Enzehöfer, A.; Ernenwein, J.-P.; Distefano, C.; Dornic, D.; Donzaud, C.; Bonis, G. De; Decowski, M.P.; Dekeyser, I.; Deschamps, A.; Costantini, H.; Coyle, Pascal; Creusot, A.; Curtil, C.; Core, L.; Coniglione, R.; Circella, M.; Charvis, Ph.; Chiarusi, T.; Cecchini, S.; Charif, Z.; Cârloganu, C.; Carr, J.; Busto, J.; Capone, A.; Wagner, S.; Visser, E.; Van Elewyck, V.; Vallée, C.; Vernin, P.; Vecchi, M.; Meli, A.; Taiuti, M.; Martinez Mora, J.A.; Tamburini, C.; Trovato, A.; Vallage, B.; Loehner, H.; Loucatos, S.; Lim, G.; Lo Presti, D.; Marcelin, M.; Margiotta, A.; Louis, F.; Zúñiga, J.; Mangano, S.; Zornoza, J.D.; Yepes, H.; Lefèvre, D.; Zaborov, D.; Lattuada, D.; Wilms, J.; de Wolf, E.; Larosa, G.; Wijnker, G.; Kreykenbohm, I.; Ruiz Rivas, J.; Kulikovskiy, V.; Rostovtsev, A.; Lahmann, R.; Russo, G.V.; Lambard, G.; Rujoiu, M.; Sánchez Losa, A.; Kooijman, P.; Samtleben, D.F.E.; Kopper, C.; Schmidt, J.; Kouchner, A.; Sapienza, P.; Kappes, A.; Kalekin, O.; Kavatsyuk, O.; Robert, A.; Katz, U.; Roensch, K.; Bouwhuis, M.C.; Bouhou, B.; Bou-Cabo, M.; Spies, A.; de Jong, M.; Bogazzi, C.; Simeone, F.; Kadler, M.; Bigongiari, C.; Shanidze, R.; Höbl, J.; Biagi, S.; Hsu, C.C.; Schüssler, F.; Bertin, V.; Hernández Rey, J.J.; Basa, S.; Stolarczyk, Th.; Herold, B.; Baret, B.; Steijger, J.J.M.; Aubert, J.-J.; Spurio, M.; Brunner, J.; Hello, Y.; Heijboer, A.J.; Schöck, F.; van Haren, H.; Schuller, J.-P.; Hamal, M.; Hallewell, G.; Schnabel, J. Abstract: The data taken with the ANTARES neutrino telescope from 2007 to 2010, a total live time of 863 days, are used to measure the oscillation parameters of atmospheric neutrinos. Muon tracks are reconstructed with energies as low as 20 GeV. Neutrino oscillations will cause a suppression of vertical upgoing muon neutrinos of such energies crossing the Earth. The parameters determining the oscillation of atmospheric neutrinos are extracted by fitting the event rate as a function of the ratio of the estimated neutrino energy and reconstructed flight path through the Earth. Measurement contours of the oscillation parameters in a two-flavour approximation are derived. Assuming maximal mixing, a mass difference of m2 32 = (3.1 ± 0.9) · 10−3 eV2 is obtained, in good agreement with the world average value. 2012-10-15T15:11:59Z http://hdl.handle.net/2117/16567 Title: Measurement of the group velocity of light in sea water at the ANTARES site Authors: Motz, H.; Neff, M.; Nezri, E.; Giacomelli, G.; Palioselitis, D.; McMillan, J.E.; Gómez González, J.P.; Meli, A.; Giordano, V.; Montaruli, T.; Guillard, G.; Moscoso, L.; Graf, K.; Pavalas, G.E.; Payet, K.; Assis Jesus, A.C.; Adrián-Martínez, S.; Folger, F.; Al Samarai, Imen; Fritsch, U.; Albert, A.; Fuda, J.-L.; André, Michel; Galata, S.; Anghinolfi, M.; Gay, P.; Anton, G.; Geyer, K.; Anvar, S.; Ardid, M.; Racca, C.; Reed, C.; Pradier, T.; Presani, E.; Flaminio, V.; Picot Clemente, N.; Ferri, M.; Popa, V.; Fermani, P.; Petrovic, J.; Escoffier, S.; Piattelli, P.; Riccobene, Giorgio; Payre, P.; Drouhin, D.; Eberl, T.; Dornic, D.; Dorosti, Q.; Ernenwein, J.-P.; Emanuele, U.; Enzenhöfer, A.; Deschamps, A.; Donzaud, C.; Distefano, C.; Curtil, C.; Bonis, G. De; Decowski, M.P.; Dekeyser, I.; Chiarusi, T.; Circella, M.; Costantini, H.; Coyle, Pascal; Charvis, Ph.; Charif, Z.; Cecchini, S.; Carminati, G.; Carr, J.; Capone, A.; Cârloganu, C.; Busto, J.; Camarena, F.; Bouwhuis, M.C.; Brunner, J.; Vannoni, G.; Van Elewyck, V.; Thompson, L.F.; Tamburini, C.; Vallage, B.; Toscano, S.; Martinez Mora, J.A.; Steijger, J.J.M.; Margiotta, A.; Stolarczyk, Th.; Sánchez Losa, A.; Taiuti, M.; Lim, G.; Lo Presti, D.; Lattuada, D.; Zúñiga, J.; Lefèvre, D.; Mangano, S.; Zornoza, J.D.; Marcelin, M.; Zaborov, D.; Loehner, H.; Yepes, H.; Loucatos, S.; de Wolf, E.; Wijnker, G.; Lattuada, D.; Wilms, J.; Larosa, G.; Vernin, P.; Wagner, S.; Lamare, P.; Vecchi, M.; Kouchner, A.; Robert, A.; Kreykenbohm, I.; Rivière, C.; Kulikovskiy, V.; Rostovtsev, A.; Lahmann, R.; Roensch, K.; Rujoiu, M.; Kavatsyuk, O.; Ruiz Rivas, J.; Kooijman, P.; Salesa, F.; Kopper, C.; Russo, G.V.; Kalekin, O.; Kadler, M.; Katz, U.; Richardt, C.; Kappes, A.; Richter, R.; Bou-Cabo, M.; Bogazzi, C.; Bigongiari, C.; Shanidze, R.; Hsu, C.C.; Bigi, A.; Seitz, T.; de Jong, M.; Biagi, S.; Herold, B.; Schüssler, F.; Bertin, V.; Höbl, J.; Schuller, J.-P.; Basa, S.; Hello, Y.; Baret, B.; Spurio, M.; Hernández Rey, J.J.; Aubert, J.-J.; Spies, A.; Astraatmadja, T.; Simeone, F.; Bouhou, B.; Heijboer, A.J.; Hartman, J.; Sapienza, P.; van Haren, H.; Schöck, F.; Hallewell, G.; Halladjian, G.; Samtleben, D.F.E. Abstract: The group velocity of light has been measured at eight different wavelengths between 385 nm and 532 nm in the Mediterranean Sea at a depth of about 2.2 km with the ANTARES optical beacon systems. A parametrisation of the dependence of the refractive index on wavelength based on the salinity, pressure and temperature of the sea water at the ANTARES site is in good agreement with these measurements. 2012-09-25T15:38:43Z http://hdl.handle.net/2117/16566 Title: Search for relativistic magnetic monopoles with the ANTARES neutrino telescope Authors: Palioselitis, D.; Pavalas, G.E.; Payet, K.; Gómez González, J.P.; Payre, P.; Moscoso, L.; Guillard, G.; Motz, H.; Graf, K.; Neff, M.; Hallewell, G.; Nezri, E.; Halladjian, G.; Petrovic, J.; Piattelli, P.; Ardid, M.; Adrián-Martínez, S.; Fritsch, U.; Aguilar, J.A.; Fuda, J.-L.; Al Samarai, Imen; Galata, S.; Albert, A.; Gay, P.; André, Michel; Giacomelli, G.; Anghinolfi, M.; Giordano, V.; Anton, G.; Anvar, S.; Richardt, C.; Richter, R.; Reed, C.; Riccobene, Giorgio; Folger, F.; Presani, E.; Flaminio, V.; Racca, C.; Ferri, M.; Popa, V.; Fermani, P.; Pradier, T.; Rivière, C.; Eberl, T.; Picot Clemente, N.; Emanuele, U.; Dorosti, Q.; Drouhin, D.; Escoffier, S.; Enzenhöfer, A.; Ernenwein, J.-P.; Distefano, C.; Dornic, D.; Donzaud, C.; Curtil, C.; Decowski, M.P.; Dekeyser, I.; Deschamps, A.; Chiarusi, T.; Circella, M.; Costantini, H.; Coyle, Pascal; Charvis, Ph.; Charif, Z.; Cecchini, S.; Carminati, G.; Carr, J.; Capone, A.; Cârloganu, C.; Busto, J.; Camarena, F.; Bouwhuis, M.C.; Brunner, J.; Wilms, J.; Wijnker, G.; Vecchi, M.; Vannoni, G.; Wagner, S.; Vernin, P.; Morganti, M.; Tamburini, C.; Montaruli, T.; Toscano, S.; Vallage, B.; Van Elewyck, V.; Loucatos, S.; Mangano, S.; Lo Presti, D.; Loehner, H.; Martinez Mora, J.A.; Meli, A.; Marcelin, M.; Margiotta, A.; Zornoza, J.D.; Lim, G.; Zúñiga, J.; Lefèvre, D.; Yepes, H.; Zaborov, D.; Lattuada, D.; de Wolf, E.; Kulikovskiy, V.; Ruiz Rivas, J.; Lahmann, R.; Rostovtsev, A.; Lamare, P.; Russo, G.V.; Larosa, G.; Rujoiu, M.; Sapienza, P.; Kopper, C.; Salesa, F.; Kouchner, A.; Schuller, J.-P.; Kreykenbohm, I.; Schöck, F.; Katz, U.; Kappes, A.; Kooijman, P.; Robert, A.; Kavatsyuk, O.; Roensch, K.; Bou-Cabo, M.; Bogazzi, C.; Bigongiari, C.; Steijger, J.J.M.; Kadler, M.; Biagi, S.; Spurio, M.; Kalekin, O.; Bertin, V.; Spies, A.; Hsu, C.C.; Basa, S.; Simeone, F.; de Jong, M.; Baret, B.; Herold, B.; Aubert, J.-J.; Taiuti, M.; Höbl, J.; Astraatmadja, T.; Sánchez Losa, A.; Assis Jesus, A.C.; Stolarczyk, Th.; Bouhou, B.; Hernández Rey, J.J.; Hello, Y.; Seitz, T.; Heijboer, A.J.; Shanidze, R.; Hartman, J.; van Haren, H.; Schüssler, F. Abstract: Magnetic monopoles are predicted in various unified gauge models and could be produced at intermediate mass scales. Their detection in a neutrino telescope is facilitated by the large amount of light emitted compared to that from muons. This paper reports on a search for upgoing relativistic magnetic monopoles with the ANTARES neutrino telescope using a data set of 116 days of live time taken from December 2007 to December 2008. The one observed event is consistent with the expected atmospheric neutrino and muon background, leading to a 90% C.L. upper limit on the monopole flux between 1.3 10 17 and 8.9 10 17 cm 2 s 1 sr 1 for monopoles with velocity bP0.625. 2012-09-25T15:09:53Z http://hdl.handle.net/2117/12808 Title: Listening to the Deep: Live monitoring of ocean noise and cetacean acoustic signals Authors: André, Michel; Van der Schaar, Mike Connor Roger Malcolm; Zaugg, Serge Alain; Houégnigan, Ludwig; Sánchez, A.M.; Castell, Joan 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 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. 2011-06-22T09:38:09Z http://hdl.handle.net/2117/12288 Title: Search for a diffuse flux of high-energy ¿µ with the ANTARES neutrino telescope Authors: Petrovic, J.; Piattelli, P.; Guillard, G.; Picot-Clemente, N.; Picq, C.; Neff, M.; Hallewell, G.; Palioselitis, D.; Halladjian, G.; Pavalas, G.E.; Heijboer, A.J.; Spurio, M.; Taiuti, M.; Lamare, P.; Stolarczyk, Th.; Larosa, G.; Kopper, C.; Kooijman, P.; Kulikowskiy, V.; Sapienza, P.; Kouchner, A.; Van Haren, H.; Schöck, F.; Bogazzi, C.; Bigongiari, C.; Biagi, S.; Vecchi, M.; Kappes, A.; Bertin, V.; Vannoni, G.; Katz, U.; Bazzotti, M.; Payre, P.; Van Elewyck, V.; Kalantar-Nayestanaki, N.; Basa, S.; Vallage, B.; Kalekin, O.; Baret, B.; De Jong, M.; Auer, R.; Kadler, M.; De Wolf, E.; Popa, V.; Aubert, J.J.; Wijnker, G.; Astraatmadja, T.; Vernin, P.; Bou-Cabo, M.; Hsu, C.C.; Tasca, L.; Höbl, J.; Toscano, S.; Herold, B.; Pradier, T.; Hernández Rey, J.J.; Tamburini, C.; Hello, Y.; Assis Jesus, A.C.; Aguilar, J.A.; Fuda, J.L.; Al Samarai, Imen; Galata, S.; Albert, A.; Gay, P.; André, Michel; Giacomelli, G.; Anghinolfi, M.; Gómez González, J.P.; Anton, G.; Graf, K.; Anvar, S.; Ardid, M.; Rujoiu, M.; Russo, G.V.; Roensch, K.; Rostovtsev, A.; Fritsch, U.; Riccobene, Giorgio; Folger, F.; Richardt, C.; Flaminio, V.; Racca, C.; Fehr, F.; Reed, C.; Salesa, F.; Drouhin, D.; Presani, E.; Eberl, T.; Dornic, D.; Dorosti, Q.; Escoffier, S.; Emanuele, U.; Ernenwein, J.P.; Dekeyser, I.; Donzaud, C.; Deschamps, A.; Cottini, N.; Coyle, Pascal; Curtil, C.; Decowski, M.P.; Chiarusi, T.; Circella, M.; Coniglione, R.; Costantini, H.; Charvis, Ph.; Cecchini, S.; Carr, J.; Cârloganu, C.; Carminati, G.; Camarena, F.; Capone, A.; Brunner, J.; Busto, J.; Bouwhuis, M.C.; Brown, A.M.; Naumann, C.; Yepes, H.; Motz, H.; Zaborov, D.; Zornoza, J.D.; Zúñiga, J.; Martinez Mora, J.A.; Mazure, A.; Marcelin, M.; Margiotta, A.; Morganti, M.; Moscoso, L.; Meli, A.; Montarulli, T.; Mangano, S.; Lucarelli, F.; Loucatos, S.; Lefèvre, D.; Shanidze, R.; Lim, G.; Schuller, J.P.; Lo Presti, D.; Spies, A.; Loehner, H.; Simeone, F.; Steijger, J.J.M.; Lahmann, R. Abstract: A search for a diffuse flux of astrophysical muon neutrinos, using data collected by the ANTARES neutrino telescope is presented. A (0.83 × 2π) sr sky was monitored for a total of 334 days of equivalent live time. The searched signal corresponds to an excess of events, produced by astrophysical sources, over the expected atmospheric neutrino background. The observed number of events is found compatible with the background expectation. Assuming an E−2 flux spectrum, a 90% c.l. upper limit on the diffuse νμ flux of E2Φ90% = 5.3 × 10−8 GeVcm−2 s−1 sr−1 in the energy range 20 TeV–2.5 PeV is obtained. Other signal models with different energy spectra are also tested and some rejected. 2011-04-07T09:10:11Z http://hdl.handle.net/2117/11857 Title: Classification of Sperm Whale Clicks (Physeter Macrocephalus) with Gaussian- Kernel-Based Networks Authors: Van der Schaar, Mike Connor Roger Malcolm; Delory, Eric; André, Michel Abstract: With the aim of classifying sperm whales, this report compares two methods that can use Gaussian functions, a radial basis function network, and support vector machines which were trained with two different approaches known as C-SVM and º-SVM. The methods were tested on data recordings from seven different male sperm whales, six containing single click trains and the seventh containing a complete dive. Both types of classifiers could distinguish between the clicks of the seven different whales, but the SVM seemed to have better generalisation towards unknown data, at the cost of needing more information and slower performance. 2011-03-15T16:49:17Z http://hdl.handle.net/2117/11785 Title: A second generation of an autonomous and portable auditory screening system for cetacean clinical and research purposes Authors: Mas, Alex; Castell Balaguer, Joan Vicent; Río Fernandez, Joaquín del; Van der Schaar, Mike Connor Roger Malcolm; Delory, Eric; André, Michel 2011-03-11T10:20:09Z http://hdl.handle.net/2117/11778 Title: Unsucessful attempt to measure sound related evoked potentials on cuttlefish (Sepia officinalis) Authors: Mas, Alex; Solé, Marta; Castell Balaguer, Joan Vicent; André, Michel 2011-03-10T12:01:25Z http://hdl.handle.net/2117/11777 Title: Electronic upgrades on the second generation of an autonomous and portable cetacean auditory screening system Authors: Mas, Alex; Castell Balaguer, Joan Vicent; Río Fernandez, Joaquín del; Van der Schaar, Mike Connor Roger Malcolm; André, Michel Abstract: 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. 2011-03-10T09:57:13Z http://hdl.handle.net/2117/11776 Title: Modelling the underwater noise associated to the construction and operation of offshore wind turbines Authors: Castell Balaguer, Joan Vicent; Van der Schaar, Mike Connor Roger Malcolm; Mas, Alex; Zaugg, Serge Alain; Houégnigan, Ludwig; Morell Ybarz, María; Solé, Marta; André, Michel Abstract: 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. 2011-03-10T08:41:52Z http://hdl.handle.net/2117/10225 Title: Space–time and hybrid algorithms for the passive acoustic localisation of sperm whales and vessels Authors: Houégnigan, Ludwig; Zaugg, Serge Alain; Van der Schaar, Mike Connor Roger Malcolm; André, Michel Abstract: In the frame of the European Sea-floor Observatory Network (ESONET) and in preparation of the Demonstration Mission Listening to the Deep-Ocean Environment (LIDO) algorithms for the automated real-time detection, classification and localisation of cetaceans have been developed. Such Passive Acoustic Monitoring techniques have the potential to play a key role in cetaceans’ conservation for they allow a non-invasive study of their behaviour, a better knowledge of their population dynamics, and a better understanding of their dynamic relationship with their environment. This paper investigates the development of efficient and accurate techniques to be used as the basis of a localisation module for an automated real-time Passive Acoustic Monitoring system. An opportunity to assess the capabilities of the developed localisation modules was given by recordings collected with a bottom-mounted (around 2080 m depth) tetrahedral compact hydrophone array located offshore the port of Catania (Sicily) during the NEMO-ONDE campaign in the years 2005–2006 by INFN and CIBRA [2]. A well-known class of methods for acoustic source localisation is based on time differences of arrival (TDOA). Its capabilities have shown to be useful even in adverse situations (i.e., few sensors, high noise levels and/or poor calibration). A second class of methods, the space–time methods, originated in underwater applications such as sonar but reached its most significant achievements over the last 20 years in digital communications with recent progress in the treatment of broadband signals. These developments are here revisited under the scope of the localisation and tracking of cetacean vocalisations. Various broadband space–time methods were implemented and allowed to map the sound radiated during the detected clicks and to consequently localise both sperm whales and vessels. Hybrid methods were also developed which improved the robustness of space–time methods to noise and reverberation and reduced processing time. In most cases, the small variance obtained for these estimates lessened the necessity of additional statistical clustering. Even though not independently confirmed by sightings, the tracks derived in the proposed frame can be considered to be consistent with the known movements of sperm whales and vessels. 2010-11-09T16:57:55Z http://hdl.handle.net/2117/6143 Title: Estudio de la contaminación acústica del litoral: Influencia en los cetaceos Authors: Río Fernandez, Joaquín del; André, Michel; Gomáriz Castro, Spartacus; Pérez Soriano, Jaume Abstract: Durante el curso 2001-2002 se realizó el primer proyecto conjunto de investigación de los estudiantes de secundaria de los IES de Vilanova i la Geltrú y la Escola Politècnica Superior d’Enginyeria de Vilanova i la Geltrú (EPSEVG), que contaron con la colaboración activa del Ayuntamiento de Vilanova i la Geltrú. La buena acogida que lleva teniendo esta iniciativa nos ha animado a continuar la experiencia y durante el presente curso 2004-2005 se ha desarrollado el cuarto trabajo conjunto de investigación, titulado “Estudio de la Contaminación Acústica del Litoral. Influencia en los Cetáceos”. El objetivo del proyecto ha sido formar un grupo de trabajo interdisciplinario, tutorizado por profesores la EPSEVG, con estudiantes de los diferentes centros de secundaria que están cursando las modalidades de bachillerato tecnológico y científico. La elaboración de los trabajos ha hecho posible un acercamiento de estos estudiantes que están finalizando el bachillerato al mundo universitario. Al mismo tiempo ha permitido la utilización por parte de éstos de los recursos y conocimientos de la Escuela. La realización del proyecto conjunto ha sido desarrollada por un grupo de alumnos de bachillerato científico y tecnológico los cuales trabajaban juntos para la elaboración de un único proyecto. El grupo se ha dividido en dos partes, una área técnica y otra científica. El área técnica ha trabajado en el diseño y montaje de un amplificador escuchar y monitorizar el sonido acuático captado por un hidrofono. El área científica ha trabajado en el estudio de los cetáceos, su anatomía y comportamiento, sobre su sistema de comunicación, como se orientan en el mar, y en que medida les puede afectar la contaminación acústica producida por la actividad humana. 2010-01-11T17:03:48Z