Sea-floor images during POLARSTERN cruise ANT-XIII/3 to the Weddell Sea, Antarctica
Transects of a Remotely Operated Vehicle (ROV) providing sea-bed videos and photographs were carried out during POLARSTERN expedition ANT-XIII/3 focussing on the ecology of benthic assemblages on the Antarctic shelf in the South-Eastern Weddell Sea. The ROV-system sprint 103 was equiped with two vid...
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Format: | Article in Journal/Newspaper |
Language: | English |
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PANGAEA - Data Publisher for Earth & Environmental Science
2010
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Online Access: | https://dx.doi.org/10.1594/pangaea.755488 https://doi.pangaea.de/10.1594/PANGAEA.755488 |
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ftdatacite:10.1594/pangaea.755488 |
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record_format |
openpolar |
institution |
Open Polar |
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DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Remote operated vehicle SPRINT 103 Photo sledge ANT-XIII/3 Polarstern Archive of Underwater Imaging AUI Ecology of the Antarctic Sea Ice Zone EASIZ |
spellingShingle |
Remote operated vehicle SPRINT 103 Photo sledge ANT-XIII/3 Polarstern Archive of Underwater Imaging AUI Ecology of the Antarctic Sea Ice Zone EASIZ Gutt, Julian Sea-floor images during POLARSTERN cruise ANT-XIII/3 to the Weddell Sea, Antarctica |
topic_facet |
Remote operated vehicle SPRINT 103 Photo sledge ANT-XIII/3 Polarstern Archive of Underwater Imaging AUI Ecology of the Antarctic Sea Ice Zone EASIZ |
description |
Transects of a Remotely Operated Vehicle (ROV) providing sea-bed videos and photographs were carried out during POLARSTERN expedition ANT-XIII/3 focussing on the ecology of benthic assemblages on the Antarctic shelf in the South-Eastern Weddell Sea. The ROV-system sprint 103 was equiped with two video- and one still camera, lights, flash-lights, compass, and parallel lasers providing a scale in the images, a tether-management system (TMS), a winch, and the board units. All cameras used the same main lense and could be tilted. Videos were recorded in Betacam-format and (film-)slides were made by decision of the scientific pilot. The latter were mainly made under the aspect to improve the identification of organisms depicted in the videos because the still photographs have a much higher optical resolution than the videos. In the photographs species larger than 3 mm, in the videos larger than 1 cm are recognisable and countable. Under optimum conditions the transects were strait; the speed and direction of the ROV were determined by the drift of the ship in the coastal current, since both, the ship and the ROV were used as a drifting system; the option to operate the vehicle actively was only used to avoide obstacles and to reach at best a distance of only approximately 30 cm to the sea-floor. As a consequence the width of the photographs in the foreground is approximately 50 cm. Deviations from this strategy resulted mainly from difficult ice- and weather conditions but also from high current velocity and local up-welling close to the sea-bed.The sea-bed images provide insights into the general composition of key species, higher systematic groups and ecological guilds. Within interdisciplinary approaches distributions of assemblages can be attributed to environmental conditions such as bathymetry, sediment characteristics, water masses and current regimes. The images also contain valuable information on how benthic species are associated to each other. Along the transects, small- to intermediate-scaled disturbances, e.g. by grounding icebergs were analysed and further impact to the entire benthic system by local succession of recolonisation was studied. This information can be used for models predicting the impact of climate change to benthic life in the Southern Ocean. All these approaches contribute to a better understanding of the fiunctioning of the benthic system and related components of the entire Antarctic marine ecosystem. Despite their scientific value the imaging methods meet concerns about the protection of sensitive Antarctic benthic systems since they are non-invasive and they also provide valuable material for education and outreach purposes. |
format |
Article in Journal/Newspaper |
author |
Gutt, Julian |
author_facet |
Gutt, Julian |
author_sort |
Gutt, Julian |
title |
Sea-floor images during POLARSTERN cruise ANT-XIII/3 to the Weddell Sea, Antarctica |
title_short |
Sea-floor images during POLARSTERN cruise ANT-XIII/3 to the Weddell Sea, Antarctica |
title_full |
Sea-floor images during POLARSTERN cruise ANT-XIII/3 to the Weddell Sea, Antarctica |
title_fullStr |
Sea-floor images during POLARSTERN cruise ANT-XIII/3 to the Weddell Sea, Antarctica |
title_full_unstemmed |
Sea-floor images during POLARSTERN cruise ANT-XIII/3 to the Weddell Sea, Antarctica |
title_sort |
sea-floor images during polarstern cruise ant-xiii/3 to the weddell sea, antarctica |
publisher |
PANGAEA - Data Publisher for Earth & Environmental Science |
publishDate |
2010 |
url |
https://dx.doi.org/10.1594/pangaea.755488 https://doi.pangaea.de/10.1594/PANGAEA.755488 |
geographic |
Antarctic Southern Ocean The Antarctic Weddell Sea Weddell |
geographic_facet |
Antarctic Southern Ocean The Antarctic Weddell Sea Weddell |
genre |
Antarc* Antarctic Antarctica Iceberg* Sea ice Southern Ocean Weddell Sea |
genre_facet |
Antarc* Antarctic Antarctica Iceberg* Sea ice Southern Ocean Weddell Sea |
op_relation |
http://koix.kisti.re.kr/root_resolution.jsp?koi=KISTI1.1003/JNL.JAKO200112242749322 https://dx.doi.org/10.1017/s0954102000000365 http://koix.kisti.re.kr/root_resolution.jsp?koi=KISTI1.1003/JNL.JAKO200112242749322 https://dx.doi.org/10.1007/s003000100262 https://dx.doi.org/10.1007/s00300-001-0352-9 https://dx.doi.org/10.4067/s0717-65382003000200007 https://dx.doi.org/10.3354/meps253077 https://dx.doi.org/10.1007/s003000100263 https://dx.doi.org/10.1007/s00227-003-1269-3 |
op_rights |
Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/pangaea.755488 https://doi.org/10.1017/s0954102000000365 https://doi.org/10.1007/s003000100262 https://doi.org/10.1007/s00300-001-0352-9 https://doi.org/10.4067/s0717-65382003000200007 https://doi.org/10.3354/meps253077 ; |
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1766246374181961728 |
spelling |
ftdatacite:10.1594/pangaea.755488 2023-05-15T13:47:07+02:00 Sea-floor images during POLARSTERN cruise ANT-XIII/3 to the Weddell Sea, Antarctica Gutt, Julian 2010 application/zip https://dx.doi.org/10.1594/pangaea.755488 https://doi.pangaea.de/10.1594/PANGAEA.755488 en eng PANGAEA - Data Publisher for Earth & Environmental Science http://koix.kisti.re.kr/root_resolution.jsp?koi=KISTI1.1003/JNL.JAKO200112242749322 https://dx.doi.org/10.1017/s0954102000000365 http://koix.kisti.re.kr/root_resolution.jsp?koi=KISTI1.1003/JNL.JAKO200112242749322 https://dx.doi.org/10.1007/s003000100262 https://dx.doi.org/10.1007/s00300-001-0352-9 https://dx.doi.org/10.4067/s0717-65382003000200007 https://dx.doi.org/10.3354/meps253077 https://dx.doi.org/10.1007/s003000100263 https://dx.doi.org/10.1007/s00227-003-1269-3 Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 CC-BY Remote operated vehicle SPRINT 103 Photo sledge ANT-XIII/3 Polarstern Archive of Underwater Imaging AUI Ecology of the Antarctic Sea Ice Zone EASIZ Collection of Datasets article Collection 2010 ftdatacite https://doi.org/10.1594/pangaea.755488 https://doi.org/10.1017/s0954102000000365 https://doi.org/10.1007/s003000100262 https://doi.org/10.1007/s00300-001-0352-9 https://doi.org/10.4067/s0717-65382003000200007 https://doi.org/10.3354/meps253077 ; 2022-02-09T12:07:01Z Transects of a Remotely Operated Vehicle (ROV) providing sea-bed videos and photographs were carried out during POLARSTERN expedition ANT-XIII/3 focussing on the ecology of benthic assemblages on the Antarctic shelf in the South-Eastern Weddell Sea. The ROV-system sprint 103 was equiped with two video- and one still camera, lights, flash-lights, compass, and parallel lasers providing a scale in the images, a tether-management system (TMS), a winch, and the board units. All cameras used the same main lense and could be tilted. Videos were recorded in Betacam-format and (film-)slides were made by decision of the scientific pilot. The latter were mainly made under the aspect to improve the identification of organisms depicted in the videos because the still photographs have a much higher optical resolution than the videos. In the photographs species larger than 3 mm, in the videos larger than 1 cm are recognisable and countable. Under optimum conditions the transects were strait; the speed and direction of the ROV were determined by the drift of the ship in the coastal current, since both, the ship and the ROV were used as a drifting system; the option to operate the vehicle actively was only used to avoide obstacles and to reach at best a distance of only approximately 30 cm to the sea-floor. As a consequence the width of the photographs in the foreground is approximately 50 cm. Deviations from this strategy resulted mainly from difficult ice- and weather conditions but also from high current velocity and local up-welling close to the sea-bed.The sea-bed images provide insights into the general composition of key species, higher systematic groups and ecological guilds. Within interdisciplinary approaches distributions of assemblages can be attributed to environmental conditions such as bathymetry, sediment characteristics, water masses and current regimes. The images also contain valuable information on how benthic species are associated to each other. Along the transects, small- to intermediate-scaled disturbances, e.g. by grounding icebergs were analysed and further impact to the entire benthic system by local succession of recolonisation was studied. This information can be used for models predicting the impact of climate change to benthic life in the Southern Ocean. All these approaches contribute to a better understanding of the fiunctioning of the benthic system and related components of the entire Antarctic marine ecosystem. Despite their scientific value the imaging methods meet concerns about the protection of sensitive Antarctic benthic systems since they are non-invasive and they also provide valuable material for education and outreach purposes. Article in Journal/Newspaper Antarc* Antarctic Antarctica Iceberg* Sea ice Southern Ocean Weddell Sea DataCite Metadata Store (German National Library of Science and Technology) Antarctic Southern Ocean The Antarctic Weddell Sea Weddell |