The winter pack-ice zone provides a sheltered but food-poor habitat for larval Antarctic krill
A dominant Antarctic ecological paradigm suggests that winter sea ice is generally the main feeding ground for krill larvae. Observations from our winter cruise to the southwest Atlantic sector of the Southern Ocean contradict this view and present the first evidence that the pack-ice zone is a food...
Published in: | Nature Ecology & Evolution |
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Online Access: | https://epic.awi.de/id/eprint/46092/ https://epic.awi.de/id/eprint/46092/1/Meyeretal2017.pdf https://hdl.handle.net/10013/epic.a7576f3f-7b1b-40c1-b258-2d720aed341d |
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ftawi:oai:epic.awi.de:46092 2024-09-15T17:41:51+00:00 The winter pack-ice zone provides a sheltered but food-poor habitat for larval Antarctic krill Meyer, Bettina Freier, Ulrich Grimm, Volker Groeneveld, Jürgen Hunt, Brian P. V. Kerwath, Sven King, Rob Klaas, Christine Pakhomov, Evgeny A. Meiners, Klaus M. Melbourne-Thomas, Jessica Murphy, Eugene J. Thorpe, Sally E. Stammerjohn, Sharon Wolf-Gladrow, Dieter Auerswald, Lutz Götz, Albrecht Halbach, Laura Jarman, Simon Kawaguchi, So Krumpen, Thomas Nehrke, Gernot Ricker, Robert Sumner, Michael Teschke, Mathias Trebilco, Rowan Yilmaz, I. Noyan 2017-09-22 application/pdf https://epic.awi.de/id/eprint/46092/ https://epic.awi.de/id/eprint/46092/1/Meyeretal2017.pdf https://hdl.handle.net/10013/epic.a7576f3f-7b1b-40c1-b258-2d720aed341d unknown Springer Nature https://epic.awi.de/id/eprint/46092/1/Meyeretal2017.pdf Meyer, B. orcid:0000-0001-6804-9896 , Freier, U. , Grimm, V. , Groeneveld, J. , Hunt, B. P. V. , Kerwath, S. , King, R. , Klaas, C. orcid:0000-0002-6679-8970 , Pakhomov, E. A. , Meiners, K. M. , Melbourne-Thomas, J. , Murphy, E. J. , Thorpe, S. E. , Stammerjohn, S. , Wolf-Gladrow, D. orcid:0000-0001-9531-8668 , Auerswald, L. , Götz, A. , Halbach, L. , Jarman, S. , Kawaguchi, S. , Krumpen, T. orcid:0000-0001-6234-8756 , Nehrke, G. orcid:0000-0002-2851-3049 , Ricker, R. orcid:0000-0001-6928-7757 , Sumner, M. , Teschke, M. , Trebilco, R. and Yilmaz, I. N. (2017) The winter pack-ice zone provides a sheltered but food-poor habitat for larval Antarctic krill , Nature Ecology & Evolution, 1 , pp. 1853-1861 . doi:10.1038/s41559-017-0368-3 <https://doi.org/10.1038/s41559-017-0368-3> , hdl:10013/epic.a7576f3f-7b1b-40c1-b258-2d720aed341d EPIC3Nature Ecology & Evolution, Springer Nature, 1, pp. 1853-1861, ISSN: 2397-334X Article isiRev 2017 ftawi 2024-06-24T04:18:50Z A dominant Antarctic ecological paradigm suggests that winter sea ice is generally the main feeding ground for krill larvae. Observations from our winter cruise to the southwest Atlantic sector of the Southern Ocean contradict this view and present the first evidence that the pack-ice zone is a food-poor habitat for larval development. In contrast, the more open marginal ice zone provides a more favourable food environment for high larval krill growth rates. We found that complex under-ice habitats are, however, vital for larval krill when water column productivity is limited by light, by providing structures that offer protec- tion from predators and to collect organic material released from the ice. The larvae feed on this sparse ice-associated food during the day. After sunset, they migrate into the water below the ice (upper 20 m) and drift away from the ice areas where they have previously fed. Model analyses indicate that this behaviour increases both food uptake in a patchy food environment and the likelihood of overwinter transport to areas where feeding conditions are more favourable in spring. Article in Journal/Newspaper Antarc* Antarctic Antarctic Krill Sea ice Southern Ocean Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Nature Ecology & Evolution 1 12 1853 1861 |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
description |
A dominant Antarctic ecological paradigm suggests that winter sea ice is generally the main feeding ground for krill larvae. Observations from our winter cruise to the southwest Atlantic sector of the Southern Ocean contradict this view and present the first evidence that the pack-ice zone is a food-poor habitat for larval development. In contrast, the more open marginal ice zone provides a more favourable food environment for high larval krill growth rates. We found that complex under-ice habitats are, however, vital for larval krill when water column productivity is limited by light, by providing structures that offer protec- tion from predators and to collect organic material released from the ice. The larvae feed on this sparse ice-associated food during the day. After sunset, they migrate into the water below the ice (upper 20 m) and drift away from the ice areas where they have previously fed. Model analyses indicate that this behaviour increases both food uptake in a patchy food environment and the likelihood of overwinter transport to areas where feeding conditions are more favourable in spring. |
format |
Article in Journal/Newspaper |
author |
Meyer, Bettina Freier, Ulrich Grimm, Volker Groeneveld, Jürgen Hunt, Brian P. V. Kerwath, Sven King, Rob Klaas, Christine Pakhomov, Evgeny A. Meiners, Klaus M. Melbourne-Thomas, Jessica Murphy, Eugene J. Thorpe, Sally E. Stammerjohn, Sharon Wolf-Gladrow, Dieter Auerswald, Lutz Götz, Albrecht Halbach, Laura Jarman, Simon Kawaguchi, So Krumpen, Thomas Nehrke, Gernot Ricker, Robert Sumner, Michael Teschke, Mathias Trebilco, Rowan Yilmaz, I. Noyan |
spellingShingle |
Meyer, Bettina Freier, Ulrich Grimm, Volker Groeneveld, Jürgen Hunt, Brian P. V. Kerwath, Sven King, Rob Klaas, Christine Pakhomov, Evgeny A. Meiners, Klaus M. Melbourne-Thomas, Jessica Murphy, Eugene J. Thorpe, Sally E. Stammerjohn, Sharon Wolf-Gladrow, Dieter Auerswald, Lutz Götz, Albrecht Halbach, Laura Jarman, Simon Kawaguchi, So Krumpen, Thomas Nehrke, Gernot Ricker, Robert Sumner, Michael Teschke, Mathias Trebilco, Rowan Yilmaz, I. Noyan The winter pack-ice zone provides a sheltered but food-poor habitat for larval Antarctic krill |
author_facet |
Meyer, Bettina Freier, Ulrich Grimm, Volker Groeneveld, Jürgen Hunt, Brian P. V. Kerwath, Sven King, Rob Klaas, Christine Pakhomov, Evgeny A. Meiners, Klaus M. Melbourne-Thomas, Jessica Murphy, Eugene J. Thorpe, Sally E. Stammerjohn, Sharon Wolf-Gladrow, Dieter Auerswald, Lutz Götz, Albrecht Halbach, Laura Jarman, Simon Kawaguchi, So Krumpen, Thomas Nehrke, Gernot Ricker, Robert Sumner, Michael Teschke, Mathias Trebilco, Rowan Yilmaz, I. Noyan |
author_sort |
Meyer, Bettina |
title |
The winter pack-ice zone provides a sheltered but food-poor habitat for larval Antarctic krill |
title_short |
The winter pack-ice zone provides a sheltered but food-poor habitat for larval Antarctic krill |
title_full |
The winter pack-ice zone provides a sheltered but food-poor habitat for larval Antarctic krill |
title_fullStr |
The winter pack-ice zone provides a sheltered but food-poor habitat for larval Antarctic krill |
title_full_unstemmed |
The winter pack-ice zone provides a sheltered but food-poor habitat for larval Antarctic krill |
title_sort |
winter pack-ice zone provides a sheltered but food-poor habitat for larval antarctic krill |
publisher |
Springer Nature |
publishDate |
2017 |
url |
https://epic.awi.de/id/eprint/46092/ https://epic.awi.de/id/eprint/46092/1/Meyeretal2017.pdf https://hdl.handle.net/10013/epic.a7576f3f-7b1b-40c1-b258-2d720aed341d |
genre |
Antarc* Antarctic Antarctic Krill Sea ice Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctic Krill Sea ice Southern Ocean |
op_source |
EPIC3Nature Ecology & Evolution, Springer Nature, 1, pp. 1853-1861, ISSN: 2397-334X |
op_relation |
https://epic.awi.de/id/eprint/46092/1/Meyeretal2017.pdf Meyer, B. orcid:0000-0001-6804-9896 , Freier, U. , Grimm, V. , Groeneveld, J. , Hunt, B. P. V. , Kerwath, S. , King, R. , Klaas, C. orcid:0000-0002-6679-8970 , Pakhomov, E. A. , Meiners, K. M. , Melbourne-Thomas, J. , Murphy, E. J. , Thorpe, S. E. , Stammerjohn, S. , Wolf-Gladrow, D. orcid:0000-0001-9531-8668 , Auerswald, L. , Götz, A. , Halbach, L. , Jarman, S. , Kawaguchi, S. , Krumpen, T. orcid:0000-0001-6234-8756 , Nehrke, G. orcid:0000-0002-2851-3049 , Ricker, R. orcid:0000-0001-6928-7757 , Sumner, M. , Teschke, M. , Trebilco, R. and Yilmaz, I. N. (2017) The winter pack-ice zone provides a sheltered but food-poor habitat for larval Antarctic krill , Nature Ecology & Evolution, 1 , pp. 1853-1861 . doi:10.1038/s41559-017-0368-3 <https://doi.org/10.1038/s41559-017-0368-3> , hdl:10013/epic.a7576f3f-7b1b-40c1-b258-2d720aed341d |
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Nature Ecology & Evolution |
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12 |
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1853 |
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1861 |
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