Pelagic deep‑sea fauna observed on video transects in the southern Norwegian Sea
Observations of the diversity, distribution and abundance of pelagic fauna are absent for many ocean regions in the Atlantic, but baseline data are required to detect changes in communities as a result of climate change. Gelatinous fauna are increasingly recognized as vital players in oceanic food w...
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ftunivbergen:oai:bora.uib.no:11250/2982649 2023-05-15T17:46:58+02:00 Pelagic deep‑sea fauna observed on video transects in the southern Norwegian Sea Neitzel, Philipp Hosia, Aino Laila Johanna Piatkowski, Uwe Hoving, Henk-Jan 2021 application/pdf https://hdl.handle.net/11250/2982649 https://doi.org/10.1007/s00300-021-02840-5 eng eng Springer urn:issn:0722-4060 https://hdl.handle.net/11250/2982649 https://doi.org/10.1007/s00300-021-02840-5 cristin:1985592 Polar Biology. 2021, 44, 887-898. Navngivelse 4.0 Internasjonal http://creativecommons.org/licenses/by/4.0/deed.no Copyright The Author(s) 2021 Polar Biology 887-898 44 Journal article Peer reviewed 2021 ftunivbergen https://doi.org/10.1007/s00300-021-02840-5 2023-03-14T17:42:42Z Observations of the diversity, distribution and abundance of pelagic fauna are absent for many ocean regions in the Atlantic, but baseline data are required to detect changes in communities as a result of climate change. Gelatinous fauna are increasingly recognized as vital players in oceanic food webs, but sampling these delicate organisms in nets is challenging. Underwater (in situ) observations have provided unprecedented insights into mesopelagic communities in particular for abundance and distribution of gelatinous fauna. In September 2018, we performed horizontal video transects (50–1200 m) using the pelagic in situ observation system during a research cruise in the southern Norwegian Sea. Annotation of the video recordings resulted in 12 abundant and 7 rare taxa. Chaetognaths, the trachymedusa Aglantha digitale and appendicularians were the three most abundant taxa. The high numbers of fishes and crustaceans in the upper 100 m was likely the result of vertical migration. Gelatinous zooplankton included ctenophores (lobate ctenophores, Beroe spp., Euplokamis sp., and an undescribed cydippid) as well as calycophoran and physonect siphonophores. We discuss the distributions of these fauna, some of which represent the first record for the Norwegian Sea. publishedVersion Article in Journal/Newspaper Norwegian Sea Polar Biology University of Bergen: Bergen Open Research Archive (BORA-UiB) Norwegian Sea Polar Biology 44 5 887 898 |
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Open Polar |
collection |
University of Bergen: Bergen Open Research Archive (BORA-UiB) |
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ftunivbergen |
language |
English |
description |
Observations of the diversity, distribution and abundance of pelagic fauna are absent for many ocean regions in the Atlantic, but baseline data are required to detect changes in communities as a result of climate change. Gelatinous fauna are increasingly recognized as vital players in oceanic food webs, but sampling these delicate organisms in nets is challenging. Underwater (in situ) observations have provided unprecedented insights into mesopelagic communities in particular for abundance and distribution of gelatinous fauna. In September 2018, we performed horizontal video transects (50–1200 m) using the pelagic in situ observation system during a research cruise in the southern Norwegian Sea. Annotation of the video recordings resulted in 12 abundant and 7 rare taxa. Chaetognaths, the trachymedusa Aglantha digitale and appendicularians were the three most abundant taxa. The high numbers of fishes and crustaceans in the upper 100 m was likely the result of vertical migration. Gelatinous zooplankton included ctenophores (lobate ctenophores, Beroe spp., Euplokamis sp., and an undescribed cydippid) as well as calycophoran and physonect siphonophores. We discuss the distributions of these fauna, some of which represent the first record for the Norwegian Sea. publishedVersion |
format |
Article in Journal/Newspaper |
author |
Neitzel, Philipp Hosia, Aino Laila Johanna Piatkowski, Uwe Hoving, Henk-Jan |
spellingShingle |
Neitzel, Philipp Hosia, Aino Laila Johanna Piatkowski, Uwe Hoving, Henk-Jan Pelagic deep‑sea fauna observed on video transects in the southern Norwegian Sea |
author_facet |
Neitzel, Philipp Hosia, Aino Laila Johanna Piatkowski, Uwe Hoving, Henk-Jan |
author_sort |
Neitzel, Philipp |
title |
Pelagic deep‑sea fauna observed on video transects in the southern Norwegian Sea |
title_short |
Pelagic deep‑sea fauna observed on video transects in the southern Norwegian Sea |
title_full |
Pelagic deep‑sea fauna observed on video transects in the southern Norwegian Sea |
title_fullStr |
Pelagic deep‑sea fauna observed on video transects in the southern Norwegian Sea |
title_full_unstemmed |
Pelagic deep‑sea fauna observed on video transects in the southern Norwegian Sea |
title_sort |
pelagic deep‑sea fauna observed on video transects in the southern norwegian sea |
publisher |
Springer |
publishDate |
2021 |
url |
https://hdl.handle.net/11250/2982649 https://doi.org/10.1007/s00300-021-02840-5 |
geographic |
Norwegian Sea |
geographic_facet |
Norwegian Sea |
genre |
Norwegian Sea Polar Biology |
genre_facet |
Norwegian Sea Polar Biology |
op_source |
Polar Biology 887-898 44 |
op_relation |
urn:issn:0722-4060 https://hdl.handle.net/11250/2982649 https://doi.org/10.1007/s00300-021-02840-5 cristin:1985592 Polar Biology. 2021, 44, 887-898. |
op_rights |
Navngivelse 4.0 Internasjonal http://creativecommons.org/licenses/by/4.0/deed.no Copyright The Author(s) 2021 |
op_doi |
https://doi.org/10.1007/s00300-021-02840-5 |
container_title |
Polar Biology |
container_volume |
44 |
container_issue |
5 |
container_start_page |
887 |
op_container_end_page |
898 |
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1766150987341365248 |