Feeding in Arctic darkness: mid-winter diet of the pelagic amphipods Themisto abyssorum and T. libellula
The pelagic amphipods Themisto abyssorum and Themisto libellula represent important links between the herbivore zooplankton community and higher trophic levels of the Arctic marine food webs. Large double structured eyes of both of these hyperiid species are assumed to be used for visual prey detect...
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2012
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Online Access: | https://epic.awi.de/id/eprint/31201/ https://doi.org/10.1007/s00227-012-2065-8 https://hdl.handle.net/10013/epic.40527 |
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ftawi:oai:epic.awi.de:31201 2023-05-15T14:25:30+02:00 Feeding in Arctic darkness: mid-winter diet of the pelagic amphipods Themisto abyssorum and T. libellula Kraft, Angelina Berge, Jørgen Varpe, Øystein Falk-Petersen, Stig 2012 https://epic.awi.de/id/eprint/31201/ https://doi.org/10.1007/s00227-012-2065-8 https://hdl.handle.net/10013/epic.40527 unknown Kraft, A. , Berge, J. , Varpe, Ø. and Falk-Petersen, S. (2012) Feeding in Arctic darkness: mid-winter diet of the pelagic amphipods Themisto abyssorum and T. libellula , Marine Biology . doi:10.1007/s00227-012-2065-8 <https://doi.org/10.1007/s00227-012-2065-8> , hdl:10013/epic.40527 EPIC3Marine Biology Article isiRev 2012 ftawi https://doi.org/10.1007/s00227-012-2065-8 2021-12-24T15:37:58Z The pelagic amphipods Themisto abyssorum and Themisto libellula represent important links between the herbivore zooplankton community and higher trophic levels of the Arctic marine food webs. Large double structured eyes of both of these hyperiid species are assumed to be used for visual prey detection. However, no information is available on the feeding strategies of these visually searching predators for the period of the polar night, a time of year with no or very low levels of daylight. Here, we report on the stomach and gut content of both Themisto species collected during a January expedition around Svalbard (78�° to 81�°N). Results indicate that T. abyssorum and T. libellula feed actively during the Arctic winter. The major food source of both amphipods consisted of calanoid copepods, most frequently Calanus finmarchicus. Article in Journal/Newspaper Arctic Arctic Calanus finmarchicus polar night Svalbard Themisto abyssorum Themisto Themisto libellula Zooplankton Copepods Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Arctic Svalbard Marine Biology 160 1 241 248 |
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Open Polar |
collection |
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
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ftawi |
language |
unknown |
description |
The pelagic amphipods Themisto abyssorum and Themisto libellula represent important links between the herbivore zooplankton community and higher trophic levels of the Arctic marine food webs. Large double structured eyes of both of these hyperiid species are assumed to be used for visual prey detection. However, no information is available on the feeding strategies of these visually searching predators for the period of the polar night, a time of year with no or very low levels of daylight. Here, we report on the stomach and gut content of both Themisto species collected during a January expedition around Svalbard (78�° to 81�°N). Results indicate that T. abyssorum and T. libellula feed actively during the Arctic winter. The major food source of both amphipods consisted of calanoid copepods, most frequently Calanus finmarchicus. |
format |
Article in Journal/Newspaper |
author |
Kraft, Angelina Berge, Jørgen Varpe, Øystein Falk-Petersen, Stig |
spellingShingle |
Kraft, Angelina Berge, Jørgen Varpe, Øystein Falk-Petersen, Stig Feeding in Arctic darkness: mid-winter diet of the pelagic amphipods Themisto abyssorum and T. libellula |
author_facet |
Kraft, Angelina Berge, Jørgen Varpe, Øystein Falk-Petersen, Stig |
author_sort |
Kraft, Angelina |
title |
Feeding in Arctic darkness: mid-winter diet of the pelagic amphipods Themisto abyssorum and T. libellula |
title_short |
Feeding in Arctic darkness: mid-winter diet of the pelagic amphipods Themisto abyssorum and T. libellula |
title_full |
Feeding in Arctic darkness: mid-winter diet of the pelagic amphipods Themisto abyssorum and T. libellula |
title_fullStr |
Feeding in Arctic darkness: mid-winter diet of the pelagic amphipods Themisto abyssorum and T. libellula |
title_full_unstemmed |
Feeding in Arctic darkness: mid-winter diet of the pelagic amphipods Themisto abyssorum and T. libellula |
title_sort |
feeding in arctic darkness: mid-winter diet of the pelagic amphipods themisto abyssorum and t. libellula |
publishDate |
2012 |
url |
https://epic.awi.de/id/eprint/31201/ https://doi.org/10.1007/s00227-012-2065-8 https://hdl.handle.net/10013/epic.40527 |
geographic |
Arctic Svalbard |
geographic_facet |
Arctic Svalbard |
genre |
Arctic Arctic Calanus finmarchicus polar night Svalbard Themisto abyssorum Themisto Themisto libellula Zooplankton Copepods |
genre_facet |
Arctic Arctic Calanus finmarchicus polar night Svalbard Themisto abyssorum Themisto Themisto libellula Zooplankton Copepods |
op_source |
EPIC3Marine Biology |
op_relation |
Kraft, A. , Berge, J. , Varpe, Ø. and Falk-Petersen, S. (2012) Feeding in Arctic darkness: mid-winter diet of the pelagic amphipods Themisto abyssorum and T. libellula , Marine Biology . doi:10.1007/s00227-012-2065-8 <https://doi.org/10.1007/s00227-012-2065-8> , hdl:10013/epic.40527 |
op_doi |
https://doi.org/10.1007/s00227-012-2065-8 |
container_title |
Marine Biology |
container_volume |
160 |
container_issue |
1 |
container_start_page |
241 |
op_container_end_page |
248 |
_version_ |
1766297894331088896 |