Trade-off Between Aerobic Capacity and Locomotor Capability in an Antarctic Pteropod
At −1.8 °C, the waters of Antarctica pose a formidable physiological barrier for most ectotherms. The few taxa that inhabit this zone have presumably made specific adjustments to their neuromuscular function and have enhanced their metabolic capacity. However, support for this assertion is equivocal...
Published in: | Proceedings of the National Academy of Sciences |
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Online Access: | https://digitalcommons.usf.edu/msc_facpub/2381 https://doi.org/10.1073/pnas.0901321106 |
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ftunisfloridatam:oai:digitalcommons.usf.edu:msc_facpub-3363 2023-05-15T13:35:22+02:00 Trade-off Between Aerobic Capacity and Locomotor Capability in an Antarctic Pteropod Rosenthal, Joshua J. C. Seibel, Brad A. Dymowska, Agnieszka Bezanilla, Francisco 2009-01-01T08:00:00Z https://digitalcommons.usf.edu/msc_facpub/2381 https://doi.org/10.1073/pnas.0901321106 unknown Digital Commons @ University of South Florida https://digitalcommons.usf.edu/msc_facpub/2381 https://doi.org/10.1073/pnas.0901321106 Marine Science Faculty Publications Antarctica Clione antarctica Clione limacina temperature adaptation mitochondria Life Sciences article 2009 ftunisfloridatam https://doi.org/10.1073/pnas.0901321106 2022-04-07T17:43:21Z At −1.8 °C, the waters of Antarctica pose a formidable physiological barrier for most ectotherms. The few taxa that inhabit this zone have presumably made specific adjustments to their neuromuscular function and have enhanced their metabolic capacity. However, support for this assertion is equivocal and the details of specific compensations are largely unknown. This can generally be attributed to the fact that most Antarctic organisms are either too distantly related to their temperate relatives to permit direct comparisons (e.g., notothenioid fishes) or because they are not amenable to neuromuscular recording. Here, as a comparative model, we take advantage of 2 pelagic molluscs in the genus Clione to conduct a broadly integrative investigation on neuromuscular adaptation to the extreme cold. We find that for the Antarctic congener aerobic capacity is enhanced, but at a cost. To support a striking proliferation of mitochondria, the Antarctic species has shed a 2-gear swim system and the associated specialized neuromuscular components, resulting in greatly reduced scope for locomotor activity. These results suggest that polar animals have undergone substantial tissue-level reorganizations to accommodate their environment, which may reduce their capacity to acclimate to a changing climate. Article in Journal/Newspaper Antarc* Antarctic Antarctica Clione limacina Digital Commons University of South Florida (USF) Antarctic The Antarctic Proceedings of the National Academy of Sciences 106 15 6192 6196 |
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Open Polar |
collection |
Digital Commons University of South Florida (USF) |
op_collection_id |
ftunisfloridatam |
language |
unknown |
topic |
Antarctica Clione antarctica Clione limacina temperature adaptation mitochondria Life Sciences |
spellingShingle |
Antarctica Clione antarctica Clione limacina temperature adaptation mitochondria Life Sciences Rosenthal, Joshua J. C. Seibel, Brad A. Dymowska, Agnieszka Bezanilla, Francisco Trade-off Between Aerobic Capacity and Locomotor Capability in an Antarctic Pteropod |
topic_facet |
Antarctica Clione antarctica Clione limacina temperature adaptation mitochondria Life Sciences |
description |
At −1.8 °C, the waters of Antarctica pose a formidable physiological barrier for most ectotherms. The few taxa that inhabit this zone have presumably made specific adjustments to their neuromuscular function and have enhanced their metabolic capacity. However, support for this assertion is equivocal and the details of specific compensations are largely unknown. This can generally be attributed to the fact that most Antarctic organisms are either too distantly related to their temperate relatives to permit direct comparisons (e.g., notothenioid fishes) or because they are not amenable to neuromuscular recording. Here, as a comparative model, we take advantage of 2 pelagic molluscs in the genus Clione to conduct a broadly integrative investigation on neuromuscular adaptation to the extreme cold. We find that for the Antarctic congener aerobic capacity is enhanced, but at a cost. To support a striking proliferation of mitochondria, the Antarctic species has shed a 2-gear swim system and the associated specialized neuromuscular components, resulting in greatly reduced scope for locomotor activity. These results suggest that polar animals have undergone substantial tissue-level reorganizations to accommodate their environment, which may reduce their capacity to acclimate to a changing climate. |
format |
Article in Journal/Newspaper |
author |
Rosenthal, Joshua J. C. Seibel, Brad A. Dymowska, Agnieszka Bezanilla, Francisco |
author_facet |
Rosenthal, Joshua J. C. Seibel, Brad A. Dymowska, Agnieszka Bezanilla, Francisco |
author_sort |
Rosenthal, Joshua J. C. |
title |
Trade-off Between Aerobic Capacity and Locomotor Capability in an Antarctic Pteropod |
title_short |
Trade-off Between Aerobic Capacity and Locomotor Capability in an Antarctic Pteropod |
title_full |
Trade-off Between Aerobic Capacity and Locomotor Capability in an Antarctic Pteropod |
title_fullStr |
Trade-off Between Aerobic Capacity and Locomotor Capability in an Antarctic Pteropod |
title_full_unstemmed |
Trade-off Between Aerobic Capacity and Locomotor Capability in an Antarctic Pteropod |
title_sort |
trade-off between aerobic capacity and locomotor capability in an antarctic pteropod |
publisher |
Digital Commons @ University of South Florida |
publishDate |
2009 |
url |
https://digitalcommons.usf.edu/msc_facpub/2381 https://doi.org/10.1073/pnas.0901321106 |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic Antarctica Clione limacina |
genre_facet |
Antarc* Antarctic Antarctica Clione limacina |
op_source |
Marine Science Faculty Publications |
op_relation |
https://digitalcommons.usf.edu/msc_facpub/2381 https://doi.org/10.1073/pnas.0901321106 |
op_doi |
https://doi.org/10.1073/pnas.0901321106 |
container_title |
Proceedings of the National Academy of Sciences |
container_volume |
106 |
container_issue |
15 |
container_start_page |
6192 |
op_container_end_page |
6196 |
_version_ |
1766064770995191808 |