RV POSEIDON Cruise Report POS473 LORELEI II: LOphelia REef Lander Expedition and Investigation II, Tromsø – Bergen – Esbjerg, 15.08. – 31.08. – 04.09.2014
As a result of the raising CO2-emissions and the resultant ocean acidification (decreasing pH and carbonate ion concentration), the impact on marine organism that build their skeletons and protective shells with calcium carbonate (e.g., mollusks, sea urchins, coccolithophorids, and stony corals) bec...
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GEOMAR Helmholtz-Zentrum für Ozeanforschung
2015
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Online Access: | https://oceanrep.geomar.de/id/eprint/30049/ https://oceanrep.geomar.de/id/eprint/30049/1/RV%20POSEIDON_Pos473_final.pdf https://doi.org/10.3289/CR_POS_473 |
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ftoceanrep:oai:oceanrep.geomar.de:30049 2023-05-15T17:51:00+02:00 RV POSEIDON Cruise Report POS473 LORELEI II: LOphelia REef Lander Expedition and Investigation II, Tromsø – Bergen – Esbjerg, 15.08. – 31.08. – 04.09.2014 Form, Armin U. Büscher, Janina Hissmann, Karen Flögel, Sascha Wisshak, M. Rüggeberg, Andres Bannister, Raymond Kutti, Tina Stapp, Laura Bennecke, Swaantje Küter, Marie Nachtigall, Kerstin Schauer, Jürgen Fenske, Martin 2015-10 text https://oceanrep.geomar.de/id/eprint/30049/ https://oceanrep.geomar.de/id/eprint/30049/1/RV%20POSEIDON_Pos473_final.pdf https://doi.org/10.3289/CR_POS_473 en eng GEOMAR Helmholtz-Zentrum für Ozeanforschung https://oceanrep.geomar.de/id/eprint/30049/1/RV%20POSEIDON_Pos473_final.pdf Form, A. U., Büscher, J., Hissmann, K., Flögel, S., Wisshak, M., Rüggeberg, A., Bannister, R., Kutti, T., Stapp, L., Bennecke, S., Küter, M., Nachtigall, K., Schauer, J. and Fenske, M. (2015) RV POSEIDON Cruise Report POS473 LORELEI II: LOphelia REef Lander Expedition and Investigation II, Tromsø – Bergen – Esbjerg, 15.08. – 31.08. – 04.09.2014. . GEOMAR Helmholtz-Zentrum für Ozeanforschung, Kiel, 25 pp. DOI 10.3289/CR_POS_473 <https://doi.org/10.3289/CR_POS_473>. doi:10.3289/CR_POS_473 cc_by_3.0 Report NonPeerReviewed 2015 ftoceanrep https://doi.org/10.3289/CR_POS_473 2023-04-07T15:21:14Z As a result of the raising CO2-emissions and the resultant ocean acidification (decreasing pH and carbonate ion concentration), the impact on marine organism that build their skeletons and protective shells with calcium carbonate (e.g., mollusks, sea urchins, coccolithophorids, and stony corals) becomes more and more detrimental. In the last few years, many experiments with tropical reef building corals have shown, that a lowering of the carbonate ion concentration significantly reduces calcification rates and therefore growth (e.g., Gattuso et al. 1999; Langdon et al. 2000, 2003; Marubini et al. 2001, 2002). In the middle of this century, many tropical coral reefs may well erode faster than they can rebuild. Cold-water corals are living in an environment (high geographical latitude, cold and deep waters) already close to a critical carbonate ion concentration below calcium carbonate dissolves. Actual projections indicate that about 70% of the currently known Lophelia reef structures will be in serious danger until the end of the century (Guinotte et al. 2006). Therefore L. pertusa was cultured at GEOMAR to determine its long-term response to ocean acidification. Our work has revealed that – unexpectedly and controversially to the majority of warm-water corals – this species is potentially able to cope with elevated concentrations of CO2. Whereas short-term (1 week) high CO2 exposure resulted in a decline of calcification by 26-29 % for a pH decrease of 0.1 units and net dissolution of calcium carbonate, L. pertusa was capable to acclimate to acidified conditions in long-term (6 months) incubations, leading to slightly enhanced rates of calcification (Form & Riebesell, 2012). But all these studies were carried out in the laboratory under controlled conditions without considering natural variability and ecosystem interactions with the associated fauna. Moreover, only very little is known about the nutrition (food sources and quantity) of cold-water corals in their natural habitat. In a multifactorial ... Report Ocean acidification Tromsø OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Bergen Tromsø |
institution |
Open Polar |
collection |
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
op_collection_id |
ftoceanrep |
language |
English |
description |
As a result of the raising CO2-emissions and the resultant ocean acidification (decreasing pH and carbonate ion concentration), the impact on marine organism that build their skeletons and protective shells with calcium carbonate (e.g., mollusks, sea urchins, coccolithophorids, and stony corals) becomes more and more detrimental. In the last few years, many experiments with tropical reef building corals have shown, that a lowering of the carbonate ion concentration significantly reduces calcification rates and therefore growth (e.g., Gattuso et al. 1999; Langdon et al. 2000, 2003; Marubini et al. 2001, 2002). In the middle of this century, many tropical coral reefs may well erode faster than they can rebuild. Cold-water corals are living in an environment (high geographical latitude, cold and deep waters) already close to a critical carbonate ion concentration below calcium carbonate dissolves. Actual projections indicate that about 70% of the currently known Lophelia reef structures will be in serious danger until the end of the century (Guinotte et al. 2006). Therefore L. pertusa was cultured at GEOMAR to determine its long-term response to ocean acidification. Our work has revealed that – unexpectedly and controversially to the majority of warm-water corals – this species is potentially able to cope with elevated concentrations of CO2. Whereas short-term (1 week) high CO2 exposure resulted in a decline of calcification by 26-29 % for a pH decrease of 0.1 units and net dissolution of calcium carbonate, L. pertusa was capable to acclimate to acidified conditions in long-term (6 months) incubations, leading to slightly enhanced rates of calcification (Form & Riebesell, 2012). But all these studies were carried out in the laboratory under controlled conditions without considering natural variability and ecosystem interactions with the associated fauna. Moreover, only very little is known about the nutrition (food sources and quantity) of cold-water corals in their natural habitat. In a multifactorial ... |
format |
Report |
author |
Form, Armin U. Büscher, Janina Hissmann, Karen Flögel, Sascha Wisshak, M. Rüggeberg, Andres Bannister, Raymond Kutti, Tina Stapp, Laura Bennecke, Swaantje Küter, Marie Nachtigall, Kerstin Schauer, Jürgen Fenske, Martin |
spellingShingle |
Form, Armin U. Büscher, Janina Hissmann, Karen Flögel, Sascha Wisshak, M. Rüggeberg, Andres Bannister, Raymond Kutti, Tina Stapp, Laura Bennecke, Swaantje Küter, Marie Nachtigall, Kerstin Schauer, Jürgen Fenske, Martin RV POSEIDON Cruise Report POS473 LORELEI II: LOphelia REef Lander Expedition and Investigation II, Tromsø – Bergen – Esbjerg, 15.08. – 31.08. – 04.09.2014 |
author_facet |
Form, Armin U. Büscher, Janina Hissmann, Karen Flögel, Sascha Wisshak, M. Rüggeberg, Andres Bannister, Raymond Kutti, Tina Stapp, Laura Bennecke, Swaantje Küter, Marie Nachtigall, Kerstin Schauer, Jürgen Fenske, Martin |
author_sort |
Form, Armin U. |
title |
RV POSEIDON Cruise Report POS473 LORELEI II: LOphelia REef Lander Expedition and Investigation II, Tromsø – Bergen – Esbjerg, 15.08. – 31.08. – 04.09.2014 |
title_short |
RV POSEIDON Cruise Report POS473 LORELEI II: LOphelia REef Lander Expedition and Investigation II, Tromsø – Bergen – Esbjerg, 15.08. – 31.08. – 04.09.2014 |
title_full |
RV POSEIDON Cruise Report POS473 LORELEI II: LOphelia REef Lander Expedition and Investigation II, Tromsø – Bergen – Esbjerg, 15.08. – 31.08. – 04.09.2014 |
title_fullStr |
RV POSEIDON Cruise Report POS473 LORELEI II: LOphelia REef Lander Expedition and Investigation II, Tromsø – Bergen – Esbjerg, 15.08. – 31.08. – 04.09.2014 |
title_full_unstemmed |
RV POSEIDON Cruise Report POS473 LORELEI II: LOphelia REef Lander Expedition and Investigation II, Tromsø – Bergen – Esbjerg, 15.08. – 31.08. – 04.09.2014 |
title_sort |
rv poseidon cruise report pos473 lorelei ii: lophelia reef lander expedition and investigation ii, tromsø – bergen – esbjerg, 15.08. – 31.08. – 04.09.2014 |
publisher |
GEOMAR Helmholtz-Zentrum für Ozeanforschung |
publishDate |
2015 |
url |
https://oceanrep.geomar.de/id/eprint/30049/ https://oceanrep.geomar.de/id/eprint/30049/1/RV%20POSEIDON_Pos473_final.pdf https://doi.org/10.3289/CR_POS_473 |
geographic |
Bergen Tromsø |
geographic_facet |
Bergen Tromsø |
genre |
Ocean acidification Tromsø |
genre_facet |
Ocean acidification Tromsø |
op_relation |
https://oceanrep.geomar.de/id/eprint/30049/1/RV%20POSEIDON_Pos473_final.pdf Form, A. U., Büscher, J., Hissmann, K., Flögel, S., Wisshak, M., Rüggeberg, A., Bannister, R., Kutti, T., Stapp, L., Bennecke, S., Küter, M., Nachtigall, K., Schauer, J. and Fenske, M. (2015) RV POSEIDON Cruise Report POS473 LORELEI II: LOphelia REef Lander Expedition and Investigation II, Tromsø – Bergen – Esbjerg, 15.08. – 31.08. – 04.09.2014. . GEOMAR Helmholtz-Zentrum für Ozeanforschung, Kiel, 25 pp. DOI 10.3289/CR_POS_473 <https://doi.org/10.3289/CR_POS_473>. doi:10.3289/CR_POS_473 |
op_rights |
cc_by_3.0 |
op_doi |
https://doi.org/10.3289/CR_POS_473 |
_version_ |
1766157970982305792 |