Less Antarctic sea ice may not mean fewer krill
A dominant Antarctic ecological paradigm suggests that winter sea ice is the feeding ground for krill larvae. However, several recent observations conflict with this hypothesis. Our study presents the first direct evidence that winter sea ice is actually a food-poor environment when compared to neig...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.864710 2024-09-15T17:48:03+00:00 Less Antarctic sea ice may not mean fewer krill Meyer, Bettina Freier, Ulrich Grimm, Volker Groeneveld, Jürgen Hunt, Brian P V Kerwath, Sven King, Rob Klaas, Christine Pakhomov, Evgeny A Melbourne-Thomas, Jess Murphy, Eugene J Thorpe, Sally Stammerjohn, Sharon Wolf-Gladrow, Dieter A Auerswald, Lutz Götz, Albrecht Halbach, Laura Jarman, Simon Kawaguchi, So Krumpen, Thomas Meiners, Klaus M Nehrke, Gernot Ricker, Robert Summer, Michael Teschke, Mathias Trebilco, Rowan Yilmaz, Noyan MEDIAN LATITUDE: -59.377499 * MEDIAN LONGITUDE: -32.678355 * SOUTH-BOUND LATITUDE: -61.333000 * WEST-BOUND LONGITUDE: -42.393670 * NORTH-BOUND LATITUDE: -53.500000 * EAST-BOUND LONGITUDE: -19.217000 * DATE/TIME START: 2013-08-26T04:04:00 * DATE/TIME END: 2013-10-06T14:05:00 2017 application/zip, 9 datasets https://doi.pangaea.de/10.1594/PANGAEA.864710 https://doi.org/10.1594/PANGAEA.864710 en eng PANGAEA Raw data in original Excel format [dataset]. https://store.pangaea.de/Publications/Meyer-etal_2016/BMeyer_raw_data_Larval_krill.xlsx https://doi.pangaea.de/10.1594/PANGAEA.864710 https://doi.org/10.1594/PANGAEA.864710 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess Supplement to: Meyer, Bettina; Freier, Ulrich; Grimm, Volker; Groeneveld, Jürgen; Hunt, Brian P V; Kerwath, Sven; King, Rob; Klaas, Christine; Pakhomov, Evgeny A; Melbourne-Thomas, Jess; Murphy, Eugene J; Thorpe, Sally; Stammerjohn, Sharon; Wolf-Gladrow, Dieter A; Auerswald, Lutz; Götz, Albrecht; Halbach, Laura; Jarman, Simon; Kawaguchi, So; Krumpen, Thomas; Meiners, Klaus M; Nehrke, Gernot; Ricker, Robert; Summer, Michael; Teschke, Mathias; Trebilco, Rowan; Yilmaz, Noyan (2017): The winter pack ice zone provides a sheltered but food-poor habitat for larval Antarctic krill. Nature Ecology & Evolution, https://doi.org/10.1038/s41559-017-0368-3 dataset publication series 2017 ftpangaea https://doi.org/10.1594/PANGAEA.86471010.1038/s41559-017-0368-3 2024-07-24T02:31:21Z A dominant Antarctic ecological paradigm suggests that winter sea ice is the feeding ground for krill larvae. However, several recent observations conflict with this hypothesis. Our study presents the first direct evidence that winter sea ice is actually a food-poor environment when compared to neighbouring open water regions. We found that complex under ice habitats are vital for larval krill, providing shelter from currents. During the day the larvae feed on the sparse ice-associated food but after sunset, they migrate into the water below the ice. This behaviour allows access to more food and promotes the dispersal of larvae to spring feeding grounds. Current larval krill overwintering and nursery habitats in the SW Atlantic are predicted to become ice-free in the future. This will lead to an enhanced food supply and faster larval development and growth but might increase the dispersal of larvae out of the SW Atlantic ecosystem. Other/Unknown Material Antarc* Antarctic Sea ice PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(-42.393670,-19.217000,-53.500000,-61.333000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
description |
A dominant Antarctic ecological paradigm suggests that winter sea ice is the feeding ground for krill larvae. However, several recent observations conflict with this hypothesis. Our study presents the first direct evidence that winter sea ice is actually a food-poor environment when compared to neighbouring open water regions. We found that complex under ice habitats are vital for larval krill, providing shelter from currents. During the day the larvae feed on the sparse ice-associated food but after sunset, they migrate into the water below the ice. This behaviour allows access to more food and promotes the dispersal of larvae to spring feeding grounds. Current larval krill overwintering and nursery habitats in the SW Atlantic are predicted to become ice-free in the future. This will lead to an enhanced food supply and faster larval development and growth but might increase the dispersal of larvae out of the SW Atlantic ecosystem. |
format |
Other/Unknown Material |
author |
Meyer, Bettina Freier, Ulrich Grimm, Volker Groeneveld, Jürgen Hunt, Brian P V Kerwath, Sven King, Rob Klaas, Christine Pakhomov, Evgeny A Melbourne-Thomas, Jess Murphy, Eugene J Thorpe, Sally Stammerjohn, Sharon Wolf-Gladrow, Dieter A Auerswald, Lutz Götz, Albrecht Halbach, Laura Jarman, Simon Kawaguchi, So Krumpen, Thomas Meiners, Klaus M Nehrke, Gernot Ricker, Robert Summer, Michael Teschke, Mathias Trebilco, Rowan Yilmaz, Noyan |
spellingShingle |
Meyer, Bettina Freier, Ulrich Grimm, Volker Groeneveld, Jürgen Hunt, Brian P V Kerwath, Sven King, Rob Klaas, Christine Pakhomov, Evgeny A Melbourne-Thomas, Jess Murphy, Eugene J Thorpe, Sally Stammerjohn, Sharon Wolf-Gladrow, Dieter A Auerswald, Lutz Götz, Albrecht Halbach, Laura Jarman, Simon Kawaguchi, So Krumpen, Thomas Meiners, Klaus M Nehrke, Gernot Ricker, Robert Summer, Michael Teschke, Mathias Trebilco, Rowan Yilmaz, Noyan Less Antarctic sea ice may not mean fewer krill |
author_facet |
Meyer, Bettina Freier, Ulrich Grimm, Volker Groeneveld, Jürgen Hunt, Brian P V Kerwath, Sven King, Rob Klaas, Christine Pakhomov, Evgeny A Melbourne-Thomas, Jess Murphy, Eugene J Thorpe, Sally Stammerjohn, Sharon Wolf-Gladrow, Dieter A Auerswald, Lutz Götz, Albrecht Halbach, Laura Jarman, Simon Kawaguchi, So Krumpen, Thomas Meiners, Klaus M Nehrke, Gernot Ricker, Robert Summer, Michael Teschke, Mathias Trebilco, Rowan Yilmaz, Noyan |
author_sort |
Meyer, Bettina |
title |
Less Antarctic sea ice may not mean fewer krill |
title_short |
Less Antarctic sea ice may not mean fewer krill |
title_full |
Less Antarctic sea ice may not mean fewer krill |
title_fullStr |
Less Antarctic sea ice may not mean fewer krill |
title_full_unstemmed |
Less Antarctic sea ice may not mean fewer krill |
title_sort |
less antarctic sea ice may not mean fewer krill |
publisher |
PANGAEA |
publishDate |
2017 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.864710 https://doi.org/10.1594/PANGAEA.864710 |
op_coverage |
MEDIAN LATITUDE: -59.377499 * MEDIAN LONGITUDE: -32.678355 * SOUTH-BOUND LATITUDE: -61.333000 * WEST-BOUND LONGITUDE: -42.393670 * NORTH-BOUND LATITUDE: -53.500000 * EAST-BOUND LONGITUDE: -19.217000 * DATE/TIME START: 2013-08-26T04:04:00 * DATE/TIME END: 2013-10-06T14:05:00 |
long_lat |
ENVELOPE(-42.393670,-19.217000,-53.500000,-61.333000) |
genre |
Antarc* Antarctic Sea ice |
genre_facet |
Antarc* Antarctic Sea ice |
op_source |
Supplement to: Meyer, Bettina; Freier, Ulrich; Grimm, Volker; Groeneveld, Jürgen; Hunt, Brian P V; Kerwath, Sven; King, Rob; Klaas, Christine; Pakhomov, Evgeny A; Melbourne-Thomas, Jess; Murphy, Eugene J; Thorpe, Sally; Stammerjohn, Sharon; Wolf-Gladrow, Dieter A; Auerswald, Lutz; Götz, Albrecht; Halbach, Laura; Jarman, Simon; Kawaguchi, So; Krumpen, Thomas; Meiners, Klaus M; Nehrke, Gernot; Ricker, Robert; Summer, Michael; Teschke, Mathias; Trebilco, Rowan; Yilmaz, Noyan (2017): The winter pack ice zone provides a sheltered but food-poor habitat for larval Antarctic krill. Nature Ecology & Evolution, https://doi.org/10.1038/s41559-017-0368-3 |
op_relation |
Raw data in original Excel format [dataset]. https://store.pangaea.de/Publications/Meyer-etal_2016/BMeyer_raw_data_Larval_krill.xlsx https://doi.pangaea.de/10.1594/PANGAEA.864710 https://doi.org/10.1594/PANGAEA.864710 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1594/PANGAEA.86471010.1038/s41559-017-0368-3 |
_version_ |
1810288856757436416 |