Seasonal acoustic presence of marine mammals at the South Orkney Islands, Scotia Sea
Increased knowledge about marine mammal seasonal distribution and species assemblage from the South Orkney Islands waters is needed for the development of management regulations of the commercial fishery for Antarctic krill (Euphausia superba) in this region. Passive acoustic monitoring (PAM) data w...
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ftdoajarticles:oai:doaj.org/article:5670c9c666634b7990a2f111d57231b8 2024-02-04T09:56:00+01:00 Seasonal acoustic presence of marine mammals at the South Orkney Islands, Scotia Sea Linn Åsvestad Heidi Ahonen Sebastian Menze Andrew Lowther Ulf Lindstrøm Bjørn A. Krafft 2024-01-01T00:00:00Z https://doi.org/10.1098/rsos.230233 https://doaj.org/article/5670c9c666634b7990a2f111d57231b8 EN eng The Royal Society https://royalsocietypublishing.org/doi/10.1098/rsos.230233 https://doaj.org/toc/2054-5703 doi:10.1098/rsos.230233 2054-5703 https://doaj.org/article/5670c9c666634b7990a2f111d57231b8 Royal Society Open Science, Vol 11, Iss 1 (2024) marine mammals species composition biodiversity passive acoustic monitoring vocalization Scotia Sea Science Q article 2024 ftdoajarticles https://doi.org/10.1098/rsos.230233 2024-01-07T01:42:11Z Increased knowledge about marine mammal seasonal distribution and species assemblage from the South Orkney Islands waters is needed for the development of management regulations of the commercial fishery for Antarctic krill (Euphausia superba) in this region. Passive acoustic monitoring (PAM) data were collected during the autumn and winter seasons in two consecutive years (2016, 2017), which represented highly contrasting environmental conditions due to the 2016 El Niño event. We explored differences in seasonal patterns in marine mammal acoustic presence between the two years in context of environmental cues and climate variability. Acoustic signals from five baleen whale species, two pinniped species and odontocete species were detected and separated into guilds. Although species diversity remained stable over time, the ice-avoiding and ice-affiliated species dominated before and after the onset of winter, respectively, and thus demonstrating a shift in guild composition related to season. Herein, we provide novel information about local marine mammal species diversity, community structure and residency times in a krill hotspot. Our study also demonstrates the utility of PAM data and its usefulness in providing new insights into the marine mammal habitat use and responses to environmental conditions, which are essential knowledge for the future development of a sustainable fishery management in a changing ecosystem. Article in Journal/Newspaper Antarc* Antarctic Antarctic Krill baleen whale Euphausia superba Scotia Sea South Orkney Islands Directory of Open Access Journals: DOAJ Articles Antarctic Scotia Sea South Orkney Islands ENVELOPE(-45.500,-45.500,-60.583,-60.583) Royal Society Open Science 11 1 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
marine mammals species composition biodiversity passive acoustic monitoring vocalization Scotia Sea Science Q |
spellingShingle |
marine mammals species composition biodiversity passive acoustic monitoring vocalization Scotia Sea Science Q Linn Åsvestad Heidi Ahonen Sebastian Menze Andrew Lowther Ulf Lindstrøm Bjørn A. Krafft Seasonal acoustic presence of marine mammals at the South Orkney Islands, Scotia Sea |
topic_facet |
marine mammals species composition biodiversity passive acoustic monitoring vocalization Scotia Sea Science Q |
description |
Increased knowledge about marine mammal seasonal distribution and species assemblage from the South Orkney Islands waters is needed for the development of management regulations of the commercial fishery for Antarctic krill (Euphausia superba) in this region. Passive acoustic monitoring (PAM) data were collected during the autumn and winter seasons in two consecutive years (2016, 2017), which represented highly contrasting environmental conditions due to the 2016 El Niño event. We explored differences in seasonal patterns in marine mammal acoustic presence between the two years in context of environmental cues and climate variability. Acoustic signals from five baleen whale species, two pinniped species and odontocete species were detected and separated into guilds. Although species diversity remained stable over time, the ice-avoiding and ice-affiliated species dominated before and after the onset of winter, respectively, and thus demonstrating a shift in guild composition related to season. Herein, we provide novel information about local marine mammal species diversity, community structure and residency times in a krill hotspot. Our study also demonstrates the utility of PAM data and its usefulness in providing new insights into the marine mammal habitat use and responses to environmental conditions, which are essential knowledge for the future development of a sustainable fishery management in a changing ecosystem. |
format |
Article in Journal/Newspaper |
author |
Linn Åsvestad Heidi Ahonen Sebastian Menze Andrew Lowther Ulf Lindstrøm Bjørn A. Krafft |
author_facet |
Linn Åsvestad Heidi Ahonen Sebastian Menze Andrew Lowther Ulf Lindstrøm Bjørn A. Krafft |
author_sort |
Linn Åsvestad |
title |
Seasonal acoustic presence of marine mammals at the South Orkney Islands, Scotia Sea |
title_short |
Seasonal acoustic presence of marine mammals at the South Orkney Islands, Scotia Sea |
title_full |
Seasonal acoustic presence of marine mammals at the South Orkney Islands, Scotia Sea |
title_fullStr |
Seasonal acoustic presence of marine mammals at the South Orkney Islands, Scotia Sea |
title_full_unstemmed |
Seasonal acoustic presence of marine mammals at the South Orkney Islands, Scotia Sea |
title_sort |
seasonal acoustic presence of marine mammals at the south orkney islands, scotia sea |
publisher |
The Royal Society |
publishDate |
2024 |
url |
https://doi.org/10.1098/rsos.230233 https://doaj.org/article/5670c9c666634b7990a2f111d57231b8 |
long_lat |
ENVELOPE(-45.500,-45.500,-60.583,-60.583) |
geographic |
Antarctic Scotia Sea South Orkney Islands |
geographic_facet |
Antarctic Scotia Sea South Orkney Islands |
genre |
Antarc* Antarctic Antarctic Krill baleen whale Euphausia superba Scotia Sea South Orkney Islands |
genre_facet |
Antarc* Antarctic Antarctic Krill baleen whale Euphausia superba Scotia Sea South Orkney Islands |
op_source |
Royal Society Open Science, Vol 11, Iss 1 (2024) |
op_relation |
https://royalsocietypublishing.org/doi/10.1098/rsos.230233 https://doaj.org/toc/2054-5703 doi:10.1098/rsos.230233 2054-5703 https://doaj.org/article/5670c9c666634b7990a2f111d57231b8 |
op_doi |
https://doi.org/10.1098/rsos.230233 |
container_title |
Royal Society Open Science |
container_volume |
11 |
container_issue |
1 |
_version_ |
1789960303674392576 |