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Title

Tracking fin whale calls offshore the Galicia margin, north east Atlantic Ocean

AuthorsGaspà Rebull, Oriol; Diaz, J. CSIC ORCID ; Ruiz Fernández, Mario ; Gallart Muset, Josep CSIC ORCID
KeywordsBiocommunications
Bioacoustics
Underwater sound
Acoustic signal processing
Seismometers
Issue DateOct-2006
PublisherAcoustical Society of America
CitationJournal Acoustical Society of America 120(4): 2077-2085 (2006)
AbstractData recorded during a temporary deployment of ocean bottom seismometers (OBSs) are used in this study to monitor the presence of fin whales around the array. In the summer of 2003, ten OBSs were placed 250 km from the NW coast of Iberia in the Galicia Margin, NE Atlantic Ocean for a period of one month. The recorded data set provided a large variety of signals, including fin whale vocalizations identified by their specific acoustic signature. The use of a dense array of seafloor receivers allowed investigation into the locations and tracks of the signal-generating whales using a seismological hypocentral location code. Individual pulses of different sequences have been chosen to study such tracks. Problems related to the correct identification of pulses, discrimination between direct and multiple arrivals, and the presence of more than one individual have been considered prior to location. Fin calls were concentrated in the last two weeks of the deployment and the locations were spread around the area covered by the array. These results illustrate that, besides its classical seismological aim, deployment of semipermanent seafloor seismic arrays can also provide valuable data for marine mammal behavior studies.
Description9 pages.-- PACS: 43.60.Jn; 43.30.Sf; 43.80.Ka
Publisher version (URL)http://dx.doi.org/10.1121/1.2336751
URI10261/21954
DOI10.1121/1.2336751
ISSN0001-4966
Appears in Collections:(Geo3Bcn) Artículos

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