Sounds from airguns and fin whales recorded in the mid-Atlantic Ocean, 1999–2009
| Autor: | Robert P. Dziak, Jean Goslin, Sue E. Moore, Sharon L. Nieukirk, David K. Mellinger, Karolin Klinck |
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| Přispěvatelé: | Cooperative Institute for Marine Resources Studies, Oregon State University (OSU), NOAA National Marine Fisheries Service (NMFS), National Oceanic and Atmospheric Administration (NOAA), Domaines Océaniques (LDO), Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Observatoire des Sciences de l'Univers-Institut d'écologie et environnement-Centre National de la Recherche Scientifique (CNRS) |
| Rok vydání: | 2012 |
| Předmět: |
0106 biological sciences
biosonar Sound Spectrography Acoustics and Ultrasonics [SDU.STU.GP]Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph] [SDE.MCG]Environmental Sciences/Global Changes [PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph] 01 natural sciences West africa Late summer acoustic noise Arts and Humanities (miscellaneous) biology.animal 0103 physical sciences Animals Spectral analysis 14. Life underwater Atlantic Ocean 010301 acoustics Sound production by animals Sound (geography) Acoustical detection of marine life geography passive and active geography.geographical_feature_category Fin Whale biology Whale 010604 marine biology & hydrobiology underwater sound Geology Acoustics Fin Whales Oceanography Ridge hydrophones Seasons Vocalization Animal Noise |
| Zdroj: | Journal of the Acoustical Society of America Journal of the Acoustical Society of America, Acoustical Society of America, 2012, 131 (2), pp.1102-1112. ⟨10.1121/1.3672648⟩ |
| ISSN: | 0001-4966 1520-8524 |
| DOI: | 10.1121/1.3672648 |
| Popis: | International audience; Between 1999 and 2009, autonomous hydrophones were deployed to monitor seismic activity from 16° N to 50° N along the Mid-Atlantic Ridge. These data were examined for airgun sounds produced during offshore surveys for oil and gas deposits, as well as the 20 Hz pulse sounds from fin whales, which may be masked by airgun noise. An automatic detection algorithm was used to identify airgun sound patterns, and fin whale calling levels were summarized via long-term spectral analysis. Both airgun and fin whale sounds were recorded at all sites. Fin whale calling rates were higher at sites north of 32° N, increased during the late summer and fall months at all sites, and peaked during the winter months, a time when airgun noise was often prevalent. Seismic survey vessels were acoustically located off the coasts of three major areas: Newfoundland, northeast Brazil, and Senegal and Mauritania in West Africa. In some cases, airgun sounds were recorded almost 4000 km from the survey vessel in areas that are likely occupied by fin whales, and at some locations airgun sounds were recorded more than 80% days/month for more than 12 consecutive months. |
| Databáze: | OpenAIRE |
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