Signals of resilience to ocean change: high thermal tolerance of early stage Antarctic sea urchins (Sterechinus neumayeri) reared under present-day and future pCO2 and temperature
We tested the hypothesis that development of the Antarctic urchin Sterechinus neumayeri under future ocean conditions of warming and acidification would incur physiological costs, reducing the tolerance of a secondary stressor. The aim of this study is twofold: (1) quantify current austral spring te...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.837312 2023-05-15T13:44:46+02:00 Signals of resilience to ocean change: high thermal tolerance of early stage Antarctic sea urchins (Sterechinus neumayeri) reared under present-day and future pCO2 and temperature Kapsenberg, Lydia Hofmann, Gretchen E LATITUDE: -77.634330 * LONGITUDE: 166.415300 * DATE/TIME START: 2011-10-01T00:00:00 * DATE/TIME END: 2012-11-13T21:30:00 2014-10-24 application/zip, 2 datasets https://doi.pangaea.de/10.1594/PANGAEA.837312 https://doi.org/10.1594/PANGAEA.837312 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.837312 https://doi.org/10.1594/PANGAEA.837312 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Dataset 2014 ftpangaea https://doi.org/10.1594/PANGAEA.837312 2023-01-20T07:33:21Z We tested the hypothesis that development of the Antarctic urchin Sterechinus neumayeri under future ocean conditions of warming and acidification would incur physiological costs, reducing the tolerance of a secondary stressor. The aim of this study is twofold: (1) quantify current austral spring temperature and pH near sea urchin habitat at Cape Evans in McMurdo Sound, Antarctica and (2) spawn S. neumayeri in the laboratory and raise early developmental stages (EDSs) under ambient (-0.7 °C; 400 µatm pCO2) and future (+2.6 °C; 650 and 1,000 µatm pCO2) ocean conditions and expose four EDSs (blastula, gastrula, prism, and 4-arm echinopluteus) to a one hour acute heat stress and assess survivorship. Results of field data from 2011 to 2012 show extremely stable inter-annual pH conditions ranging from 7.99 to 8.08, suggesting that future ocean acidification will drastically alter the pH-seascape for S. neumayeri. In the laboratory, S. neumayeri EDSs appear to be tolerant of temperatures and pCO2 levels above their current habitat conditions. EDSs survived acute heat exposures >20 °C above habitat temperatures of -1.9 °C. No pCO2 effect was observed for EDSs reared at -0.7 °C. When reared at +2.6 °C, small but significant pCO2 effects were observed at the blastula and prism stage, suggesting that multiple stressors are more detrimental than single stressors. While surprisingly tolerant overall, blastulae were the most sensitive stage to ocean warming and acidification. We conclude that S. neumayeri may be unexpectedly physiologically tolerant of future ocean conditions. Dataset Antarc* Antarctic Antarctica McMurdo Sound Ocean acidification PANGAEA - Data Publisher for Earth & Environmental Science Antarctic The Antarctic Austral McMurdo Sound Cape Evans ENVELOPE(161.550,161.550,-75.100,-75.100) ENVELOPE(166.415300,166.415300,-77.634330,-77.634330) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
description |
We tested the hypothesis that development of the Antarctic urchin Sterechinus neumayeri under future ocean conditions of warming and acidification would incur physiological costs, reducing the tolerance of a secondary stressor. The aim of this study is twofold: (1) quantify current austral spring temperature and pH near sea urchin habitat at Cape Evans in McMurdo Sound, Antarctica and (2) spawn S. neumayeri in the laboratory and raise early developmental stages (EDSs) under ambient (-0.7 °C; 400 µatm pCO2) and future (+2.6 °C; 650 and 1,000 µatm pCO2) ocean conditions and expose four EDSs (blastula, gastrula, prism, and 4-arm echinopluteus) to a one hour acute heat stress and assess survivorship. Results of field data from 2011 to 2012 show extremely stable inter-annual pH conditions ranging from 7.99 to 8.08, suggesting that future ocean acidification will drastically alter the pH-seascape for S. neumayeri. In the laboratory, S. neumayeri EDSs appear to be tolerant of temperatures and pCO2 levels above their current habitat conditions. EDSs survived acute heat exposures >20 °C above habitat temperatures of -1.9 °C. No pCO2 effect was observed for EDSs reared at -0.7 °C. When reared at +2.6 °C, small but significant pCO2 effects were observed at the blastula and prism stage, suggesting that multiple stressors are more detrimental than single stressors. While surprisingly tolerant overall, blastulae were the most sensitive stage to ocean warming and acidification. We conclude that S. neumayeri may be unexpectedly physiologically tolerant of future ocean conditions. |
format |
Dataset |
author |
Kapsenberg, Lydia Hofmann, Gretchen E |
spellingShingle |
Kapsenberg, Lydia Hofmann, Gretchen E Signals of resilience to ocean change: high thermal tolerance of early stage Antarctic sea urchins (Sterechinus neumayeri) reared under present-day and future pCO2 and temperature |
author_facet |
Kapsenberg, Lydia Hofmann, Gretchen E |
author_sort |
Kapsenberg, Lydia |
title |
Signals of resilience to ocean change: high thermal tolerance of early stage Antarctic sea urchins (Sterechinus neumayeri) reared under present-day and future pCO2 and temperature |
title_short |
Signals of resilience to ocean change: high thermal tolerance of early stage Antarctic sea urchins (Sterechinus neumayeri) reared under present-day and future pCO2 and temperature |
title_full |
Signals of resilience to ocean change: high thermal tolerance of early stage Antarctic sea urchins (Sterechinus neumayeri) reared under present-day and future pCO2 and temperature |
title_fullStr |
Signals of resilience to ocean change: high thermal tolerance of early stage Antarctic sea urchins (Sterechinus neumayeri) reared under present-day and future pCO2 and temperature |
title_full_unstemmed |
Signals of resilience to ocean change: high thermal tolerance of early stage Antarctic sea urchins (Sterechinus neumayeri) reared under present-day and future pCO2 and temperature |
title_sort |
signals of resilience to ocean change: high thermal tolerance of early stage antarctic sea urchins (sterechinus neumayeri) reared under present-day and future pco2 and temperature |
publisher |
PANGAEA |
publishDate |
2014 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.837312 https://doi.org/10.1594/PANGAEA.837312 |
op_coverage |
LATITUDE: -77.634330 * LONGITUDE: 166.415300 * DATE/TIME START: 2011-10-01T00:00:00 * DATE/TIME END: 2012-11-13T21:30:00 |
long_lat |
ENVELOPE(161.550,161.550,-75.100,-75.100) ENVELOPE(166.415300,166.415300,-77.634330,-77.634330) |
geographic |
Antarctic The Antarctic Austral McMurdo Sound Cape Evans |
geographic_facet |
Antarctic The Antarctic Austral McMurdo Sound Cape Evans |
genre |
Antarc* Antarctic Antarctica McMurdo Sound Ocean acidification |
genre_facet |
Antarc* Antarctic Antarctica McMurdo Sound Ocean acidification |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.837312 https://doi.org/10.1594/PANGAEA.837312 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.837312 |
_version_ |
1766206156308480000 |