2024-03-29T01:08:43Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/219542018-07-27T11:41:19Zcom_10261_82com_10261_8col_10261_335
Tracking fin whale calls offshore the Galicia margin, north east Atlantic Ocean
Gaspà Rebull, Oriol
Diaz, J.
Ruiz Fernández, Mario
Gallart Muset, Josep
Biocommunications
Bioacoustics
Underwater sound
Acoustic signal processing
Seismometers
9 pages.-- PACS: 43.60.Jn; 43.30.Sf; 43.80.Ka
Data 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.
Peer reviewed
2006-10
artículo
http://purl.org/coar/resource_type/c_6501
Journal Acoustical Society of America 120(4): 2077-2085 (2006)
0001-4966
10261/21954
10.1121/1.2336751
en
http://dx.doi.org/10.1121/1.2336751
none
Acoustical Society of America