Cetacean surveys in the Southern Ocean using icebreaker-supported helicopters
Cetaceans in the Southern Ocean are potentially impacted by anthropogenic activities, such as direct hunting or through indirect effects of a reduced sea ice due to climate change. Knowledge on the distribution of cetacean species in this area is important for conservation, but the remoteness of the...
Published in: | Polar Biology |
---|---|
Main Authors: | , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2011
|
Subjects: | |
Online Access: | https://doi.org/10.1007/s00300-011-1010-5 https://www.openagrar.de/receive/timport_mods_00016350 https://www.openagrar.de/servlets/MCRFileNodeServlet/timport_derivate_00016350/dn049499.pdf |
id |
ftopenagrar:oai:www.openagrar.de:timport_mods_00016350 |
---|---|
record_format |
openpolar |
spelling |
ftopenagrar:oai:www.openagrar.de:timport_mods_00016350 2024-09-15T18:12:40+00:00 Cetacean surveys in the Southern Ocean using icebreaker-supported helicopters Scheidat, Meike Friedlaender, Ari S. Kock, Karl-Hermann Lehnert, Linn Sophia Boebel, Olaf Roberts, Jason Williams, Rob 2011 9 https://doi.org/10.1007/s00300-011-1010-5 https://www.openagrar.de/receive/timport_mods_00016350 https://www.openagrar.de/servlets/MCRFileNodeServlet/timport_derivate_00016350/dn049499.pdf eng eng Polar Biology -- Polar Biol -- 0722-4060 -- 1432-2056 -- 584850-7 -- 1478942-5 -- http://link.springer.com/journal/300 -- http://www.bibliothek.uni-regensburg.de/ezeit/?1478942 https://doi.org/DOI:10.1007/s00300-011-1010-5 https://www.openagrar.de/receive/timport_mods_00016350 https://www.openagrar.de/servlets/MCRFileNodeServlet/timport_derivate_00016350/dn049499.pdf only signed in user info:eu-repo/semantics/restrictedAccess article Text Cetacean Distribution Sea ice Southern Ocean Surveys Whales article Text doc-type:article 2011 ftopenagrar https://doi.org/10.1007/s00300-011-1010-5 2024-07-08T23:56:24Z Cetaceans in the Southern Ocean are potentially impacted by anthropogenic activities, such as direct hunting or through indirect effects of a reduced sea ice due to climate change. Knowledge on the distribution of cetacean species in this area is important for conservation, but the remoteness of the study area and the presence of sea ice make it difficult to conduct shipboard surveys to obtain this information. In this study, aerial surveys were conducted from ship-based helicopters. In the 2006/07 (ANT XXIII/8) and 2008/09 (ANT XXV/2) polar summers, the icebreaker RV ‘Polarstern’ conducted research cruises in the Weddell Sea, which offered the opportunity to use the helicopters to conduct dedicated cetacean surveys. Combining the results from both cruises, over 26,000 km were covered on survey eVort, 13 different cetacean species were identified, and a total of 221 cetacean sightings consisting of a total of 650 animals were made. Using digital photography, it was possible to identify four different beaked whale species and to conduct individual photo-identification of humpback and southern right whales. Helicopter surveys allow the collection of additional information on sightings, (e.g. group size, species), as well as the coverage of areas with high ice coverage. The Flexibility and manoeuvrability of helicopters make them a powerful scientific tool to investigate cetaceans in the Southern Ocean, especially in combination with an icebreaker. Article in Journal/Newspaper Icebreaker Polar Biology Sea ice Southern Ocean Weddell Sea OpenAgrar (OA) Polar Biology 34 10 1513 1522 |
institution |
Open Polar |
collection |
OpenAgrar (OA) |
op_collection_id |
ftopenagrar |
language |
English |
topic |
article Text Cetacean Distribution Sea ice Southern Ocean Surveys Whales |
spellingShingle |
article Text Cetacean Distribution Sea ice Southern Ocean Surveys Whales Scheidat, Meike Friedlaender, Ari S. Kock, Karl-Hermann Lehnert, Linn Sophia Boebel, Olaf Roberts, Jason Williams, Rob Cetacean surveys in the Southern Ocean using icebreaker-supported helicopters |
topic_facet |
article Text Cetacean Distribution Sea ice Southern Ocean Surveys Whales |
description |
Cetaceans in the Southern Ocean are potentially impacted by anthropogenic activities, such as direct hunting or through indirect effects of a reduced sea ice due to climate change. Knowledge on the distribution of cetacean species in this area is important for conservation, but the remoteness of the study area and the presence of sea ice make it difficult to conduct shipboard surveys to obtain this information. In this study, aerial surveys were conducted from ship-based helicopters. In the 2006/07 (ANT XXIII/8) and 2008/09 (ANT XXV/2) polar summers, the icebreaker RV ‘Polarstern’ conducted research cruises in the Weddell Sea, which offered the opportunity to use the helicopters to conduct dedicated cetacean surveys. Combining the results from both cruises, over 26,000 km were covered on survey eVort, 13 different cetacean species were identified, and a total of 221 cetacean sightings consisting of a total of 650 animals were made. Using digital photography, it was possible to identify four different beaked whale species and to conduct individual photo-identification of humpback and southern right whales. Helicopter surveys allow the collection of additional information on sightings, (e.g. group size, species), as well as the coverage of areas with high ice coverage. The Flexibility and manoeuvrability of helicopters make them a powerful scientific tool to investigate cetaceans in the Southern Ocean, especially in combination with an icebreaker. |
format |
Article in Journal/Newspaper |
author |
Scheidat, Meike Friedlaender, Ari S. Kock, Karl-Hermann Lehnert, Linn Sophia Boebel, Olaf Roberts, Jason Williams, Rob |
author_facet |
Scheidat, Meike Friedlaender, Ari S. Kock, Karl-Hermann Lehnert, Linn Sophia Boebel, Olaf Roberts, Jason Williams, Rob |
author_sort |
Scheidat, Meike |
title |
Cetacean surveys in the Southern Ocean using icebreaker-supported helicopters |
title_short |
Cetacean surveys in the Southern Ocean using icebreaker-supported helicopters |
title_full |
Cetacean surveys in the Southern Ocean using icebreaker-supported helicopters |
title_fullStr |
Cetacean surveys in the Southern Ocean using icebreaker-supported helicopters |
title_full_unstemmed |
Cetacean surveys in the Southern Ocean using icebreaker-supported helicopters |
title_sort |
cetacean surveys in the southern ocean using icebreaker-supported helicopters |
publishDate |
2011 |
url |
https://doi.org/10.1007/s00300-011-1010-5 https://www.openagrar.de/receive/timport_mods_00016350 https://www.openagrar.de/servlets/MCRFileNodeServlet/timport_derivate_00016350/dn049499.pdf |
genre |
Icebreaker Polar Biology Sea ice Southern Ocean Weddell Sea |
genre_facet |
Icebreaker Polar Biology Sea ice Southern Ocean Weddell Sea |
op_relation |
Polar Biology -- Polar Biol -- 0722-4060 -- 1432-2056 -- 584850-7 -- 1478942-5 -- http://link.springer.com/journal/300 -- http://www.bibliothek.uni-regensburg.de/ezeit/?1478942 https://doi.org/DOI:10.1007/s00300-011-1010-5 https://www.openagrar.de/receive/timport_mods_00016350 https://www.openagrar.de/servlets/MCRFileNodeServlet/timport_derivate_00016350/dn049499.pdf |
op_rights |
only signed in user info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1007/s00300-011-1010-5 |
container_title |
Polar Biology |
container_volume |
34 |
container_issue |
10 |
container_start_page |
1513 |
op_container_end_page |
1522 |
_version_ |
1810450264304386048 |