Pelagic occurrences of the ice amphipod Apherusa glacialis throughout the Arctic
Abstract Apherusa glacialis is a common, sea ice-associated amphipod found throughout the Arctic Ocean and has long been considered permanently associated with the sea ice habitat. However, pelagic occurrences of A. glacialis have also been reported. It was recently suggested that A. glacialis overw...
Published in: | Journal of Plankton Research |
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Language: | English |
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Oxford University Press (OUP)
2020
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Online Access: | http://dx.doi.org/10.1093/plankt/fbz072 http://academic.oup.com/plankt/article-pdf/42/1/73/32307201/fbz072.pdf |
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croxfordunivpr:10.1093/plankt/fbz072 2024-03-24T08:59:11+00:00 Pelagic occurrences of the ice amphipod Apherusa glacialis throughout the Arctic Kunisch, Erin H Bluhm, Bodil A Daase, Malin Gradinger, Rolf Hop, Haakon Melnikov, Igor A Varpe, Øystein Berge, Jørgen Irigoien, Xabier Norwegian Research Council Arctic ABC Project Arctic University of Norway and the Tromsø Research Foundation Russian Federation Russian Federation for Basic Research RFBR Russian Geographical Society 2020 http://dx.doi.org/10.1093/plankt/fbz072 http://academic.oup.com/plankt/article-pdf/42/1/73/32307201/fbz072.pdf en eng Oxford University Press (OUP) http://creativecommons.org/licenses/by/4.0/ Journal of Plankton Research volume 42, issue 1, page 73-86 ISSN 0142-7873 1464-3774 Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics journal-article 2020 croxfordunivpr https://doi.org/10.1093/plankt/fbz072 2024-02-26T16:28:30Z Abstract Apherusa glacialis is a common, sea ice-associated amphipod found throughout the Arctic Ocean and has long been considered permanently associated with the sea ice habitat. However, pelagic occurrences of A. glacialis have also been reported. It was recently suggested that A. glacialis overwinters at depth within the Atlantic-water inflow near Svalbard, to avoid being exported out of the Arctic Ocean through the Fram Strait. This study collated pelagic occurrence records over a 71-year period and found that A. glacialis was consistently found away from its presumed sea ice habitat on a pan-Arctic scale, in different depths and water masses. In the Svalbard region, A. glacialis was found in Atlantic Water both in winter and summer. Additionally, we analyzed A. glacialis size distributions throughout the year, collected mostly from sea ice, in order to elucidate potential life cycle strategies. The majority of young-of-the-year A. glacialis was found in the sea ice habitat during spring, supporting previous findings. Data on size distributions and sex ratios suggest a semelparous lifestyle. A synchronous seasonal vertical migration was not evident, but our data imply a more complex life history than previously assumed. We provide evidence that A. glacialis can no longer be regarded as an autochthonous sympagic species. Article in Journal/Newspaper Arctic Arctic Ocean Fram Strait Sea ice Svalbard Oxford University Press Arctic Arctic Ocean Svalbard Journal of Plankton Research 42 1 73 86 |
institution |
Open Polar |
collection |
Oxford University Press |
op_collection_id |
croxfordunivpr |
language |
English |
topic |
Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics Kunisch, Erin H Bluhm, Bodil A Daase, Malin Gradinger, Rolf Hop, Haakon Melnikov, Igor A Varpe, Øystein Berge, Jørgen Pelagic occurrences of the ice amphipod Apherusa glacialis throughout the Arctic |
topic_facet |
Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics |
description |
Abstract Apherusa glacialis is a common, sea ice-associated amphipod found throughout the Arctic Ocean and has long been considered permanently associated with the sea ice habitat. However, pelagic occurrences of A. glacialis have also been reported. It was recently suggested that A. glacialis overwinters at depth within the Atlantic-water inflow near Svalbard, to avoid being exported out of the Arctic Ocean through the Fram Strait. This study collated pelagic occurrence records over a 71-year period and found that A. glacialis was consistently found away from its presumed sea ice habitat on a pan-Arctic scale, in different depths and water masses. In the Svalbard region, A. glacialis was found in Atlantic Water both in winter and summer. Additionally, we analyzed A. glacialis size distributions throughout the year, collected mostly from sea ice, in order to elucidate potential life cycle strategies. The majority of young-of-the-year A. glacialis was found in the sea ice habitat during spring, supporting previous findings. Data on size distributions and sex ratios suggest a semelparous lifestyle. A synchronous seasonal vertical migration was not evident, but our data imply a more complex life history than previously assumed. We provide evidence that A. glacialis can no longer be regarded as an autochthonous sympagic species. |
author2 |
Irigoien, Xabier Norwegian Research Council Arctic ABC Project Arctic University of Norway and the Tromsø Research Foundation Russian Federation Russian Federation for Basic Research RFBR Russian Geographical Society |
format |
Article in Journal/Newspaper |
author |
Kunisch, Erin H Bluhm, Bodil A Daase, Malin Gradinger, Rolf Hop, Haakon Melnikov, Igor A Varpe, Øystein Berge, Jørgen |
author_facet |
Kunisch, Erin H Bluhm, Bodil A Daase, Malin Gradinger, Rolf Hop, Haakon Melnikov, Igor A Varpe, Øystein Berge, Jørgen |
author_sort |
Kunisch, Erin H |
title |
Pelagic occurrences of the ice amphipod Apherusa glacialis throughout the Arctic |
title_short |
Pelagic occurrences of the ice amphipod Apherusa glacialis throughout the Arctic |
title_full |
Pelagic occurrences of the ice amphipod Apherusa glacialis throughout the Arctic |
title_fullStr |
Pelagic occurrences of the ice amphipod Apherusa glacialis throughout the Arctic |
title_full_unstemmed |
Pelagic occurrences of the ice amphipod Apherusa glacialis throughout the Arctic |
title_sort |
pelagic occurrences of the ice amphipod apherusa glacialis throughout the arctic |
publisher |
Oxford University Press (OUP) |
publishDate |
2020 |
url |
http://dx.doi.org/10.1093/plankt/fbz072 http://academic.oup.com/plankt/article-pdf/42/1/73/32307201/fbz072.pdf |
geographic |
Arctic Arctic Ocean Svalbard |
geographic_facet |
Arctic Arctic Ocean Svalbard |
genre |
Arctic Arctic Ocean Fram Strait Sea ice Svalbard |
genre_facet |
Arctic Arctic Ocean Fram Strait Sea ice Svalbard |
op_source |
Journal of Plankton Research volume 42, issue 1, page 73-86 ISSN 0142-7873 1464-3774 |
op_rights |
http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1093/plankt/fbz072 |
container_title |
Journal of Plankton Research |
container_volume |
42 |
container_issue |
1 |
container_start_page |
73 |
op_container_end_page |
86 |
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1794398942639685632 |