Antarctic krill and ecosystem monitoring survey off the South Orkney Islands in 2023
Environmental monitoring along 5 set transect lines off South Orkney Islands in the Southern Ocean have been carried out annually (since 2011) by the Institute of Marine Research, Norway. Data are used to calculate biomass of Antarctic krill (Euphausia superba) as well as mapping distribution and de...
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ftimr:oai:imr.brage.unit.no:11250/3073221 2023-07-16T03:52:32+02:00 Antarctic krill and ecosystem monitoring survey off the South Orkney Islands in 2023 Krafft, Bjørn Arne Pedersen, Ronald Zhang, Guosong Menze, Sebastian Rasmussen, Astrid Fuglseth Skaar, Hege Dale, Julian Biuw, Martin Oosthuisen, Chris Lowther, Andrew 2023 application/pdf https://hdl.handle.net/11250/3073221 eng eng Havforskningsinstituttet Toktrapport Toktrapport;2023 - 8 https://www.hi.no/hi/nettrapporter/toktrapport-en-2023-8 Havforskningsinstituttet: 14246 urn:issn:1503-6294 https://hdl.handle.net/11250/3073221 cristin:2156856 44 2023 - 8 Research report 2023 ftimr 2023-06-28T22:46:37Z Environmental monitoring along 5 set transect lines off South Orkney Islands in the Southern Ocean have been carried out annually (since 2011) by the Institute of Marine Research, Norway. Data are used to calculate biomass of Antarctic krill (Euphausia superba) as well as mapping distribution and demographic composition of krill, but also other macrozooplankton and fish taxa. Visual sightings of cetaceans and pinnipeds are registered systematically along the transects during daylight hours. During this year's survey, a pilot photo-drone project was also undertaken to investigate the potential of employing this type of technology to monitor body-size of individual whales to form the basis for calculating energetics and prey needs. Personnel were also deployed on Powell Island with breeding chinstrap penguins to satellite-tag penguins. At the same time, we maneuvered an unmanned sail drone, fitted with an echosounder, via satellite communication into what is known to be the preferred feeding area for chinstraps that breed at Powell Island. This data will be used to study swarm types in relation to penguins foraging strategies as well as assessing potential spatiotemporal overlaps with fisheries. Herein we report on the survey activities from 2023 and present some preliminary results. Antarctic krill and ecosystem monitoring survey off the South Orkney Islands in 2023 publishedVersion Report Antarc* Antarctic Antarctic Krill Euphausia superba Powell Island South Orkney Islands Southern Ocean Institute for Marine Research: Brage IMR Antarctic Norway Powell Island ENVELOPE(-132.376,-132.376,53.686,53.686) South Orkney Islands ENVELOPE(-45.500,-45.500,-60.583,-60.583) Southern Ocean |
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Open Polar |
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Institute for Marine Research: Brage IMR |
op_collection_id |
ftimr |
language |
English |
description |
Environmental monitoring along 5 set transect lines off South Orkney Islands in the Southern Ocean have been carried out annually (since 2011) by the Institute of Marine Research, Norway. Data are used to calculate biomass of Antarctic krill (Euphausia superba) as well as mapping distribution and demographic composition of krill, but also other macrozooplankton and fish taxa. Visual sightings of cetaceans and pinnipeds are registered systematically along the transects during daylight hours. During this year's survey, a pilot photo-drone project was also undertaken to investigate the potential of employing this type of technology to monitor body-size of individual whales to form the basis for calculating energetics and prey needs. Personnel were also deployed on Powell Island with breeding chinstrap penguins to satellite-tag penguins. At the same time, we maneuvered an unmanned sail drone, fitted with an echosounder, via satellite communication into what is known to be the preferred feeding area for chinstraps that breed at Powell Island. This data will be used to study swarm types in relation to penguins foraging strategies as well as assessing potential spatiotemporal overlaps with fisheries. Herein we report on the survey activities from 2023 and present some preliminary results. Antarctic krill and ecosystem monitoring survey off the South Orkney Islands in 2023 publishedVersion |
format |
Report |
author |
Krafft, Bjørn Arne Pedersen, Ronald Zhang, Guosong Menze, Sebastian Rasmussen, Astrid Fuglseth Skaar, Hege Dale, Julian Biuw, Martin Oosthuisen, Chris Lowther, Andrew |
spellingShingle |
Krafft, Bjørn Arne Pedersen, Ronald Zhang, Guosong Menze, Sebastian Rasmussen, Astrid Fuglseth Skaar, Hege Dale, Julian Biuw, Martin Oosthuisen, Chris Lowther, Andrew Antarctic krill and ecosystem monitoring survey off the South Orkney Islands in 2023 |
author_facet |
Krafft, Bjørn Arne Pedersen, Ronald Zhang, Guosong Menze, Sebastian Rasmussen, Astrid Fuglseth Skaar, Hege Dale, Julian Biuw, Martin Oosthuisen, Chris Lowther, Andrew |
author_sort |
Krafft, Bjørn Arne |
title |
Antarctic krill and ecosystem monitoring survey off the South Orkney Islands in 2023 |
title_short |
Antarctic krill and ecosystem monitoring survey off the South Orkney Islands in 2023 |
title_full |
Antarctic krill and ecosystem monitoring survey off the South Orkney Islands in 2023 |
title_fullStr |
Antarctic krill and ecosystem monitoring survey off the South Orkney Islands in 2023 |
title_full_unstemmed |
Antarctic krill and ecosystem monitoring survey off the South Orkney Islands in 2023 |
title_sort |
antarctic krill and ecosystem monitoring survey off the south orkney islands in 2023 |
publisher |
Havforskningsinstituttet |
publishDate |
2023 |
url |
https://hdl.handle.net/11250/3073221 |
long_lat |
ENVELOPE(-132.376,-132.376,53.686,53.686) ENVELOPE(-45.500,-45.500,-60.583,-60.583) |
geographic |
Antarctic Norway Powell Island South Orkney Islands Southern Ocean |
geographic_facet |
Antarctic Norway Powell Island South Orkney Islands Southern Ocean |
genre |
Antarc* Antarctic Antarctic Krill Euphausia superba Powell Island South Orkney Islands Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctic Krill Euphausia superba Powell Island South Orkney Islands Southern Ocean |
op_source |
44 2023 - 8 |
op_relation |
Toktrapport Toktrapport;2023 - 8 https://www.hi.no/hi/nettrapporter/toktrapport-en-2023-8 Havforskningsinstituttet: 14246 urn:issn:1503-6294 https://hdl.handle.net/11250/3073221 cristin:2156856 |
_version_ |
1771546046738989056 |