Image_1_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/25248283 2024-09-15T17:57:14+00:00 Image_1_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 2024-02-20T04:06:52Z https://doi.org/10.3389/fmars.2024.1338538.s002 https://figshare.com/articles/figure/Image_1_Dwarf_minke_whales_Balaenoptera_acutorostrata_acoustic_signals_from_the_South_Atlantic_Ocean_tif/25248283 unknown doi:10.3389/fmars.2024.1338538.s002 https://figshare.com/articles/figure/Image_1_Dwarf_minke_whales_Balaenoptera_acutorostrata_acoustic_signals_from_the_South_Atlantic_Ocean_tif/25248283 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.s002 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_1_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_1_Dwarf minke whales (Balaenoptera acutorostrata) acoustic signals from the South Atlantic Ocean.tif |
title_short |
Image_1_Dwarf minke whales (Balaenoptera acutorostrata) acoustic signals from the South Atlantic Ocean.tif |
title_full |
Image_1_Dwarf minke whales (Balaenoptera acutorostrata) acoustic signals from the South Atlantic Ocean.tif |
title_fullStr |
Image_1_Dwarf minke whales (Balaenoptera acutorostrata) acoustic signals from the South Atlantic Ocean.tif |
title_full_unstemmed |
Image_1_Dwarf minke whales (Balaenoptera acutorostrata) acoustic signals from the South Atlantic Ocean.tif |
title_sort |
image_1_dwarf minke whales (balaenoptera acutorostrata) acoustic signals from the south atlantic ocean.tif |
publishDate |
2024 |
url |
https://doi.org/10.3389/fmars.2024.1338538.s002 https://figshare.com/articles/figure/Image_1_Dwarf_minke_whales_Balaenoptera_acutorostrata_acoustic_signals_from_the_South_Atlantic_Ocean_tif/25248283 |
genre |
Balaenoptera acutorostrata |
genre_facet |
Balaenoptera acutorostrata |
op_relation |
doi:10.3389/fmars.2024.1338538.s002 https://figshare.com/articles/figure/Image_1_Dwarf_minke_whales_Balaenoptera_acutorostrata_acoustic_signals_from_the_South_Atlantic_Ocean_tif/25248283 |
op_rights |
CC BY 4.0 |
op_doi |
https://doi.org/10.3389/fmars.2024.1338538.s002 |
_version_ |
1810433392888512512 |