The Challenge to Observe Antarctic Toothfish (Dissostichus mawsoni) under Fast Ice
In situ observation of Antarctic toothfish (Dissostichus mawsoni) is challenging as they typically live at depths greater than 500 m, in dark and ice-covered Antarctic waters. Searching for adequate methodologies to survey Antarctic toothfish in their habitat, we tested a miniaturized Baited Remote...
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ftmdpi:oai:mdpi.com:/2077-1312/9/3/255/ 2023-08-20T04:02:29+02:00 The Challenge to Observe Antarctic Toothfish (Dissostichus mawsoni) under Fast Ice Davide Di Blasi Simonepietro Canese Erica Carlig Steven J. Parker Eva Pisano Marino Vacchi Laura Ghigliotti agris 2021-02-28 application/pdf https://doi.org/10.3390/jmse9030255 EN eng Multidisciplinary Digital Publishing Institute Marine Biology https://dx.doi.org/10.3390/jmse9030255 https://creativecommons.org/licenses/by/4.0/ Journal of Marine Science and Engineering; Volume 9; Issue 3; Pages: 255 BRUV Ross Sea video sampling Antarctica Text 2021 ftmdpi https://doi.org/10.3390/jmse9030255 2023-08-01T01:10:10Z In situ observation of Antarctic toothfish (Dissostichus mawsoni) is challenging as they typically live at depths greater than 500 m, in dark and ice-covered Antarctic waters. Searching for adequate methodologies to survey Antarctic toothfish in their habitat, we tested a miniaturized Baited Remote Underwater Video camera (BRUV), deployed through holes drilled in the sea ice in the Ross Sea region, over three field seasons. In 2015 three BRUVs were deployed at McMurdo Sound, and paired with a vertical longline sampling. In 2017, three opportunistic deployments were performed at Terra Nova Bay. In 2018 seven deployments at Terra Nova Bay provided preliminary data on the habitat preferences of the species. The design and configuration of the mini-BRUV allowed to collect high-quality video imagery of 60 Antarctic toothfish in 13 deployments from the fast sea ice. The behaviour of fish at the bait, intra-species interactions, and potential biases in individual counting were investigated, setting baselines for future studies on the abundance and distribution of Antarctic toothfish in sea-ice covered areas. This work represents the first step towards the development of protocols for non-extractive monitoring of the Antarctic toothfish in the high-Antarctica coastal shelf areas, of great value in the Ross Sea region where the largest MPA of the world has recently been established. Text Antarc* Antarctic Antarctic Toothfish Antarctica McMurdo Sound Ross Sea Sea ice ice covered areas MDPI Open Access Publishing Antarctic The Antarctic Ross Sea McMurdo Sound Terra Nova Bay Journal of Marine Science and Engineering 9 3 255 |
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English |
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BRUV Ross Sea video sampling Antarctica |
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BRUV Ross Sea video sampling Antarctica Davide Di Blasi Simonepietro Canese Erica Carlig Steven J. Parker Eva Pisano Marino Vacchi Laura Ghigliotti The Challenge to Observe Antarctic Toothfish (Dissostichus mawsoni) under Fast Ice |
topic_facet |
BRUV Ross Sea video sampling Antarctica |
description |
In situ observation of Antarctic toothfish (Dissostichus mawsoni) is challenging as they typically live at depths greater than 500 m, in dark and ice-covered Antarctic waters. Searching for adequate methodologies to survey Antarctic toothfish in their habitat, we tested a miniaturized Baited Remote Underwater Video camera (BRUV), deployed through holes drilled in the sea ice in the Ross Sea region, over three field seasons. In 2015 three BRUVs were deployed at McMurdo Sound, and paired with a vertical longline sampling. In 2017, three opportunistic deployments were performed at Terra Nova Bay. In 2018 seven deployments at Terra Nova Bay provided preliminary data on the habitat preferences of the species. The design and configuration of the mini-BRUV allowed to collect high-quality video imagery of 60 Antarctic toothfish in 13 deployments from the fast sea ice. The behaviour of fish at the bait, intra-species interactions, and potential biases in individual counting were investigated, setting baselines for future studies on the abundance and distribution of Antarctic toothfish in sea-ice covered areas. This work represents the first step towards the development of protocols for non-extractive monitoring of the Antarctic toothfish in the high-Antarctica coastal shelf areas, of great value in the Ross Sea region where the largest MPA of the world has recently been established. |
format |
Text |
author |
Davide Di Blasi Simonepietro Canese Erica Carlig Steven J. Parker Eva Pisano Marino Vacchi Laura Ghigliotti |
author_facet |
Davide Di Blasi Simonepietro Canese Erica Carlig Steven J. Parker Eva Pisano Marino Vacchi Laura Ghigliotti |
author_sort |
Davide Di Blasi |
title |
The Challenge to Observe Antarctic Toothfish (Dissostichus mawsoni) under Fast Ice |
title_short |
The Challenge to Observe Antarctic Toothfish (Dissostichus mawsoni) under Fast Ice |
title_full |
The Challenge to Observe Antarctic Toothfish (Dissostichus mawsoni) under Fast Ice |
title_fullStr |
The Challenge to Observe Antarctic Toothfish (Dissostichus mawsoni) under Fast Ice |
title_full_unstemmed |
The Challenge to Observe Antarctic Toothfish (Dissostichus mawsoni) under Fast Ice |
title_sort |
challenge to observe antarctic toothfish (dissostichus mawsoni) under fast ice |
publisher |
Multidisciplinary Digital Publishing Institute |
publishDate |
2021 |
url |
https://doi.org/10.3390/jmse9030255 |
op_coverage |
agris |
geographic |
Antarctic The Antarctic Ross Sea McMurdo Sound Terra Nova Bay |
geographic_facet |
Antarctic The Antarctic Ross Sea McMurdo Sound Terra Nova Bay |
genre |
Antarc* Antarctic Antarctic Toothfish Antarctica McMurdo Sound Ross Sea Sea ice ice covered areas |
genre_facet |
Antarc* Antarctic Antarctic Toothfish Antarctica McMurdo Sound Ross Sea Sea ice ice covered areas |
op_source |
Journal of Marine Science and Engineering; Volume 9; Issue 3; Pages: 255 |
op_relation |
Marine Biology https://dx.doi.org/10.3390/jmse9030255 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3390/jmse9030255 |
container_title |
Journal of Marine Science and Engineering |
container_volume |
9 |
container_issue |
3 |
container_start_page |
255 |
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1774712951167516672 |