Midtrophic fish feeding modes at the poles:an ecomorphological comparison of polar cod (Boreogadus saida) and Antarctic silverfish (Pleuragramma antarctica)
The polar cod (Boreogadus saida) and the Antarctic silverfish (Pleuragramma antarctica) are pelagic fish endemic to the Arctic and Antarctica sea, respectively. Both species are abundant and play a central role as midtrophic wasp-waist species in polar ecosystems. Due to their biological and ecologi...
Published in: | Polar Biology |
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Format: | Article in Journal/Newspaper |
Language: | English |
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2021
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Online Access: | https://research.abo.fi/en/publications/f26977e6-ce12-4300-9188-20648ed025a6 https://doi.org/10.1007/s00300-021-02900-w https://research.abo.fi/ws/files/50024855/s00300_021_02900_w.pdf http://www.scopus.com/inward/record.url?scp=85108320394&partnerID=8YFLogxK https://urn.fi/URN:NBN:fi-fe2023050139614 |
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ftaboakademicris:oai:pure.atira.dk:publications/f26977e6-ce12-4300-9188-20648ed025a6 2024-06-09T07:40:55+00:00 Midtrophic fish feeding modes at the poles:an ecomorphological comparison of polar cod (Boreogadus saida) and Antarctic silverfish (Pleuragramma antarctica) Carlig, Erica Christiansen, Jørgen S. Di Blasi, Davide Ferrando, Sara Pisano, Eva Vacchi, Marino O’Driscoll, Richard L. Ghigliotti, Laura 2021 application/pdf https://research.abo.fi/en/publications/f26977e6-ce12-4300-9188-20648ed025a6 https://doi.org/10.1007/s00300-021-02900-w https://research.abo.fi/ws/files/50024855/s00300_021_02900_w.pdf http://www.scopus.com/inward/record.url?scp=85108320394&partnerID=8YFLogxK https://urn.fi/URN:NBN:fi-fe2023050139614 eng eng https://research.abo.fi/en/publications/f26977e6-ce12-4300-9188-20648ed025a6 info:eu-repo/semantics/openAccess Carlig , E , Christiansen , J S , Di Blasi , D , Ferrando , S , Pisano , E , Vacchi , M , O’Driscoll , R L & Ghigliotti , L 2021 , ' Midtrophic fish feeding modes at the poles : an ecomorphological comparison of polar cod (Boreogadus saida) and Antarctic silverfish (Pleuragramma antarctica) ' , Polar Biology , vol. 44 , no. 8 , pp. 1629-1642 . https://doi.org/10.1007/s00300-021-02900-w Antarctic silverfish Ecomorphology Feeding strategy Gill rakers Jaw mechanics Polar cod article 2021 ftaboakademicris https://doi.org/10.1007/s00300-021-02900-w 2024-05-16T14:15:22Z The polar cod (Boreogadus saida) and the Antarctic silverfish (Pleuragramma antarctica) are pelagic fish endemic to the Arctic and Antarctica sea, respectively. Both species are abundant and play a central role as midtrophic wasp-waist species in polar ecosystems. Due to their biological and ecological characteristics (small size, complex life histories, relatively short generation cycles, movement capability, planktivorous diet, and importance as prey), the polar cod and the Antarctic silverfish are potentially good sentinels of ecosystem change. Changes in polar zooplankton communities are well documented. How changes impact ecosystems as a whole largely depend on the degree of diet specialization and feeding flexibility of midtrophic species. Here, we provide the ecomorphological characterization of polar cod and Antarctic silverfish feeding performances. A comparative functional ecology approach, based on the analysis of morpho-anatomical traits, including calculation of suction index and mechanical advantage in jaw closing, was applied to profile the feeding modes and flexibility of the two species. Ecomorphological evidence supports differences in food acquisition: the polar cod appears able to alternate particulate ram-suction feeding to a pump filter feeding, and the Antarctic silverfish results be both a particulate ram and a tow-net filter feeder. Both species exhibit opportunistic feeding strategies and appear able to switch feeding mode according to the abundance and size of the available prey, which is a clue of potential resilience to a changing environment. Article in Journal/Newspaper Antarc* Antarctic Antarctic silverfish Antarctica Arctic Boreogadus saida Polar Biology polar cod Zooplankton Åbo Akademi University Research Portal Antarctic Arctic The Antarctic Polar Biology 44 8 1629 1642 |
institution |
Open Polar |
collection |
Åbo Akademi University Research Portal |
op_collection_id |
ftaboakademicris |
language |
English |
topic |
Antarctic silverfish Ecomorphology Feeding strategy Gill rakers Jaw mechanics Polar cod |
spellingShingle |
Antarctic silverfish Ecomorphology Feeding strategy Gill rakers Jaw mechanics Polar cod Carlig, Erica Christiansen, Jørgen S. Di Blasi, Davide Ferrando, Sara Pisano, Eva Vacchi, Marino O’Driscoll, Richard L. Ghigliotti, Laura Midtrophic fish feeding modes at the poles:an ecomorphological comparison of polar cod (Boreogadus saida) and Antarctic silverfish (Pleuragramma antarctica) |
topic_facet |
Antarctic silverfish Ecomorphology Feeding strategy Gill rakers Jaw mechanics Polar cod |
description |
The polar cod (Boreogadus saida) and the Antarctic silverfish (Pleuragramma antarctica) are pelagic fish endemic to the Arctic and Antarctica sea, respectively. Both species are abundant and play a central role as midtrophic wasp-waist species in polar ecosystems. Due to their biological and ecological characteristics (small size, complex life histories, relatively short generation cycles, movement capability, planktivorous diet, and importance as prey), the polar cod and the Antarctic silverfish are potentially good sentinels of ecosystem change. Changes in polar zooplankton communities are well documented. How changes impact ecosystems as a whole largely depend on the degree of diet specialization and feeding flexibility of midtrophic species. Here, we provide the ecomorphological characterization of polar cod and Antarctic silverfish feeding performances. A comparative functional ecology approach, based on the analysis of morpho-anatomical traits, including calculation of suction index and mechanical advantage in jaw closing, was applied to profile the feeding modes and flexibility of the two species. Ecomorphological evidence supports differences in food acquisition: the polar cod appears able to alternate particulate ram-suction feeding to a pump filter feeding, and the Antarctic silverfish results be both a particulate ram and a tow-net filter feeder. Both species exhibit opportunistic feeding strategies and appear able to switch feeding mode according to the abundance and size of the available prey, which is a clue of potential resilience to a changing environment. |
format |
Article in Journal/Newspaper |
author |
Carlig, Erica Christiansen, Jørgen S. Di Blasi, Davide Ferrando, Sara Pisano, Eva Vacchi, Marino O’Driscoll, Richard L. Ghigliotti, Laura |
author_facet |
Carlig, Erica Christiansen, Jørgen S. Di Blasi, Davide Ferrando, Sara Pisano, Eva Vacchi, Marino O’Driscoll, Richard L. Ghigliotti, Laura |
author_sort |
Carlig, Erica |
title |
Midtrophic fish feeding modes at the poles:an ecomorphological comparison of polar cod (Boreogadus saida) and Antarctic silverfish (Pleuragramma antarctica) |
title_short |
Midtrophic fish feeding modes at the poles:an ecomorphological comparison of polar cod (Boreogadus saida) and Antarctic silverfish (Pleuragramma antarctica) |
title_full |
Midtrophic fish feeding modes at the poles:an ecomorphological comparison of polar cod (Boreogadus saida) and Antarctic silverfish (Pleuragramma antarctica) |
title_fullStr |
Midtrophic fish feeding modes at the poles:an ecomorphological comparison of polar cod (Boreogadus saida) and Antarctic silverfish (Pleuragramma antarctica) |
title_full_unstemmed |
Midtrophic fish feeding modes at the poles:an ecomorphological comparison of polar cod (Boreogadus saida) and Antarctic silverfish (Pleuragramma antarctica) |
title_sort |
midtrophic fish feeding modes at the poles:an ecomorphological comparison of polar cod (boreogadus saida) and antarctic silverfish (pleuragramma antarctica) |
publishDate |
2021 |
url |
https://research.abo.fi/en/publications/f26977e6-ce12-4300-9188-20648ed025a6 https://doi.org/10.1007/s00300-021-02900-w https://research.abo.fi/ws/files/50024855/s00300_021_02900_w.pdf http://www.scopus.com/inward/record.url?scp=85108320394&partnerID=8YFLogxK https://urn.fi/URN:NBN:fi-fe2023050139614 |
geographic |
Antarctic Arctic The Antarctic |
geographic_facet |
Antarctic Arctic The Antarctic |
genre |
Antarc* Antarctic Antarctic silverfish Antarctica Arctic Boreogadus saida Polar Biology polar cod Zooplankton |
genre_facet |
Antarc* Antarctic Antarctic silverfish Antarctica Arctic Boreogadus saida Polar Biology polar cod Zooplankton |
op_source |
Carlig , E , Christiansen , J S , Di Blasi , D , Ferrando , S , Pisano , E , Vacchi , M , O’Driscoll , R L & Ghigliotti , L 2021 , ' Midtrophic fish feeding modes at the poles : an ecomorphological comparison of polar cod (Boreogadus saida) and Antarctic silverfish (Pleuragramma antarctica) ' , Polar Biology , vol. 44 , no. 8 , pp. 1629-1642 . https://doi.org/10.1007/s00300-021-02900-w |
op_relation |
https://research.abo.fi/en/publications/f26977e6-ce12-4300-9188-20648ed025a6 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1007/s00300-021-02900-w |
container_title |
Polar Biology |
container_volume |
44 |
container_issue |
8 |
container_start_page |
1629 |
op_container_end_page |
1642 |
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1801369323299667968 |