Image_2_Dwarf minke whales (Balaenoptera acutorostrata) acoustic signals from the South Atlantic Ocean.tif
At present, there are still populations of different balaenopterids that have never been acoustically recorded and observed simultaneously. In an opportunistic sighting of dwarf minke whales during winter in southeastern Brazil, we have registered six individuals and recorded over 200 acoustic signa...
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ftfrontimediafig:oai:figshare.com:article/25248289 2024-09-15T17:57:14+00:00 Image_2_Dwarf minke whales (Balaenoptera acutorostrata) acoustic signals from the South Atlantic Ocean.tif Lis Bittencourt Rafael Carvalho Elitieri B. Santos-Neto Tatiana L. Bisi Jose Lailson-Brito Alexandre F. Azevedo 2024-02-20T04:06:53Z https://doi.org/10.3389/fmars.2024.1338538.s003 https://figshare.com/articles/figure/Image_2_Dwarf_minke_whales_Balaenoptera_acutorostrata_acoustic_signals_from_the_South_Atlantic_Ocean_tif/25248289 unknown doi:10.3389/fmars.2024.1338538.s003 https://figshare.com/articles/figure/Image_2_Dwarf_minke_whales_Balaenoptera_acutorostrata_acoustic_signals_from_the_South_Atlantic_Ocean_tif/25248289 CC BY 4.0 Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering bioacoustics Ilha Grande Bay balaenopterids soundscape animal communication Image Figure 2024 ftfrontimediafig https://doi.org/10.3389/fmars.2024.1338538.s003 2024-08-19T06:19:46Z At present, there are still populations of different balaenopterids that have never been acoustically recorded and observed simultaneously. In an opportunistic sighting of dwarf minke whales during winter in southeastern Brazil, we have registered six individuals and recorded over 200 acoustic signals. Signals were quantified and had their acoustic parameters extracted; the calling rate was estimated as the number of sounds per minute, and the repetition rate was estimated as the number of calls of the same type emitted per minute. Four call types were described: Ba1, Ba2, Ba3 and Ba4. The most common and distinctive call was the Ba1, composed of three components: one had a peak frequency of 615.0 ± 189.8 Hz, and the other had peak frequencies of 1632.0 ± 191.5 and 5038.2 ± 195.1 Hz. Ba1 repetition varied from 2.4 to 11.1 repetitions/min. Ba2 was the second most common call with a peak frequency of 485.2 ± 421.9 Hz. The total calling rate varied from 4.4 to 11.1 calls/min. The signals are in the same frequency range reported for other areas but contain different structures. Still Image Balaenoptera acutorostrata Frontiers: Figshare |
institution |
Open Polar |
collection |
Frontiers: Figshare |
op_collection_id |
ftfrontimediafig |
language |
unknown |
topic |
Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering bioacoustics Ilha Grande Bay balaenopterids soundscape animal communication |
spellingShingle |
Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering bioacoustics Ilha Grande Bay balaenopterids soundscape animal communication Lis Bittencourt Rafael Carvalho Elitieri B. Santos-Neto Tatiana L. Bisi Jose Lailson-Brito Alexandre F. Azevedo Image_2_Dwarf minke whales (Balaenoptera acutorostrata) acoustic signals from the South Atlantic Ocean.tif |
topic_facet |
Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering bioacoustics Ilha Grande Bay balaenopterids soundscape animal communication |
description |
At present, there are still populations of different balaenopterids that have never been acoustically recorded and observed simultaneously. In an opportunistic sighting of dwarf minke whales during winter in southeastern Brazil, we have registered six individuals and recorded over 200 acoustic signals. Signals were quantified and had their acoustic parameters extracted; the calling rate was estimated as the number of sounds per minute, and the repetition rate was estimated as the number of calls of the same type emitted per minute. Four call types were described: Ba1, Ba2, Ba3 and Ba4. The most common and distinctive call was the Ba1, composed of three components: one had a peak frequency of 615.0 ± 189.8 Hz, and the other had peak frequencies of 1632.0 ± 191.5 and 5038.2 ± 195.1 Hz. Ba1 repetition varied from 2.4 to 11.1 repetitions/min. Ba2 was the second most common call with a peak frequency of 485.2 ± 421.9 Hz. The total calling rate varied from 4.4 to 11.1 calls/min. The signals are in the same frequency range reported for other areas but contain different structures. |
format |
Still Image |
author |
Lis Bittencourt Rafael Carvalho Elitieri B. Santos-Neto Tatiana L. Bisi Jose Lailson-Brito Alexandre F. Azevedo |
author_facet |
Lis Bittencourt Rafael Carvalho Elitieri B. Santos-Neto Tatiana L. Bisi Jose Lailson-Brito Alexandre F. Azevedo |
author_sort |
Lis Bittencourt |
title |
Image_2_Dwarf minke whales (Balaenoptera acutorostrata) acoustic signals from the South Atlantic Ocean.tif |
title_short |
Image_2_Dwarf minke whales (Balaenoptera acutorostrata) acoustic signals from the South Atlantic Ocean.tif |
title_full |
Image_2_Dwarf minke whales (Balaenoptera acutorostrata) acoustic signals from the South Atlantic Ocean.tif |
title_fullStr |
Image_2_Dwarf minke whales (Balaenoptera acutorostrata) acoustic signals from the South Atlantic Ocean.tif |
title_full_unstemmed |
Image_2_Dwarf minke whales (Balaenoptera acutorostrata) acoustic signals from the South Atlantic Ocean.tif |
title_sort |
image_2_dwarf minke whales (balaenoptera acutorostrata) acoustic signals from the south atlantic ocean.tif |
publishDate |
2024 |
url |
https://doi.org/10.3389/fmars.2024.1338538.s003 https://figshare.com/articles/figure/Image_2_Dwarf_minke_whales_Balaenoptera_acutorostrata_acoustic_signals_from_the_South_Atlantic_Ocean_tif/25248289 |
genre |
Balaenoptera acutorostrata |
genre_facet |
Balaenoptera acutorostrata |
op_relation |
doi:10.3389/fmars.2024.1338538.s003 https://figshare.com/articles/figure/Image_2_Dwarf_minke_whales_Balaenoptera_acutorostrata_acoustic_signals_from_the_South_Atlantic_Ocean_tif/25248289 |
op_rights |
CC BY 4.0 |
op_doi |
https://doi.org/10.3389/fmars.2024.1338538.s003 |
_version_ |
1810433393061527552 |