Ocean acidification rapidly reduces dinitrogen fixation associated with the hermatypic coral Seriatopora hystrix
Since productivity and growth of coral-associated dinoflagellate algae is nitrogen (N)-limited, dinitrogen (N2) fixation by coral-associated microbes is likely crucial for maintaining the coral-dinoflagellate symbiosis. It is thus essential to understand the effects future climate change will have o...
Published in: | Marine Ecology Progress Series |
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Online Access: | https://repository.publisso.de/resource/frl:6405903 https://doi.org/10.3354/meps10912 |
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ftzbmed:oai:frl.publisso.de:frl:6405903 2023-10-09T21:54:48+02:00 Ocean acidification rapidly reduces dinitrogen fixation associated with the hermatypic coral Seriatopora hystrix Rädecker, Nils Meyer, Friedrich W. Bednarz, Vanessa N. Cardini, Ulisse Wild, Christian 2014 https://repository.publisso.de/resource/frl:6405903 https://doi.org/10.3354/meps10912 eng eng https://repository.publisso.de/resource/frl:6405903 https://doi.org/10.3354/meps10912 https://creativecommons.org/licenses/by/4.0/ Marine ecology progress series, 511: 297-302 Nutrient limitation Acetylene reduction assay Coral holobiont Calcification Carbon fixation Zeitschriftenartikel 2014 ftzbmed https://doi.org/10.3354/meps10912 2023-09-10T22:07:27Z Since productivity and growth of coral-associated dinoflagellate algae is nitrogen (N)-limited, dinitrogen (N2) fixation by coral-associated microbes is likely crucial for maintaining the coral-dinoflagellate symbiosis. It is thus essential to understand the effects future climate change will have on N2 fixation by the coral holobiont. This laboratory study is the first to investigate short-term effects of ocean acidification on N2 fixation activity associated with the tropical, hermatypic coral Seriatopora hystrix using the acetylene reduction assay in combination with calcification measurements. Findings reveal that simulated ocean acidification ( pCO2 1080 µatm) caused a rapid and significant decrease (53%) in N2 fixation rates associated with S. hystrix compared to the present day scenario ( pCO2 486 µatm). In addition, N2 fixation associated with the coral holobiont showed a positive exponential relationship with its calcification rates. This suggests that even small declines in calcification rates of hermatypic corals under high CO2 conditions may result in decreased N2 fixation activity, since these 2 processes may compete for energy in the coral holobiont. Ultimately, an intensified N limitation in combination with a decline in skeletal growth may trigger a negative feedback loop on coral productivity exacerbating the negative long-term effects of ocean acidification. Article in Journal/Newspaper Ocean acidification PUBLISSO Fachrepositorium Lebenswissenschaften (ZB MED) Marine Ecology Progress Series 511 297 302 |
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Open Polar |
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PUBLISSO Fachrepositorium Lebenswissenschaften (ZB MED) |
op_collection_id |
ftzbmed |
language |
English |
topic |
Nutrient limitation Acetylene reduction assay Coral holobiont Calcification Carbon fixation |
spellingShingle |
Nutrient limitation Acetylene reduction assay Coral holobiont Calcification Carbon fixation Rädecker, Nils Meyer, Friedrich W. Bednarz, Vanessa N. Cardini, Ulisse Wild, Christian Ocean acidification rapidly reduces dinitrogen fixation associated with the hermatypic coral Seriatopora hystrix |
topic_facet |
Nutrient limitation Acetylene reduction assay Coral holobiont Calcification Carbon fixation |
description |
Since productivity and growth of coral-associated dinoflagellate algae is nitrogen (N)-limited, dinitrogen (N2) fixation by coral-associated microbes is likely crucial for maintaining the coral-dinoflagellate symbiosis. It is thus essential to understand the effects future climate change will have on N2 fixation by the coral holobiont. This laboratory study is the first to investigate short-term effects of ocean acidification on N2 fixation activity associated with the tropical, hermatypic coral Seriatopora hystrix using the acetylene reduction assay in combination with calcification measurements. Findings reveal that simulated ocean acidification ( pCO2 1080 µatm) caused a rapid and significant decrease (53%) in N2 fixation rates associated with S. hystrix compared to the present day scenario ( pCO2 486 µatm). In addition, N2 fixation associated with the coral holobiont showed a positive exponential relationship with its calcification rates. This suggests that even small declines in calcification rates of hermatypic corals under high CO2 conditions may result in decreased N2 fixation activity, since these 2 processes may compete for energy in the coral holobiont. Ultimately, an intensified N limitation in combination with a decline in skeletal growth may trigger a negative feedback loop on coral productivity exacerbating the negative long-term effects of ocean acidification. |
format |
Article in Journal/Newspaper |
author |
Rädecker, Nils Meyer, Friedrich W. Bednarz, Vanessa N. Cardini, Ulisse Wild, Christian |
author_facet |
Rädecker, Nils Meyer, Friedrich W. Bednarz, Vanessa N. Cardini, Ulisse Wild, Christian |
author_sort |
Rädecker, Nils |
title |
Ocean acidification rapidly reduces dinitrogen fixation associated with the hermatypic coral Seriatopora hystrix |
title_short |
Ocean acidification rapidly reduces dinitrogen fixation associated with the hermatypic coral Seriatopora hystrix |
title_full |
Ocean acidification rapidly reduces dinitrogen fixation associated with the hermatypic coral Seriatopora hystrix |
title_fullStr |
Ocean acidification rapidly reduces dinitrogen fixation associated with the hermatypic coral Seriatopora hystrix |
title_full_unstemmed |
Ocean acidification rapidly reduces dinitrogen fixation associated with the hermatypic coral Seriatopora hystrix |
title_sort |
ocean acidification rapidly reduces dinitrogen fixation associated with the hermatypic coral seriatopora hystrix |
publishDate |
2014 |
url |
https://repository.publisso.de/resource/frl:6405903 https://doi.org/10.3354/meps10912 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
Marine ecology progress series, 511: 297-302 |
op_relation |
https://repository.publisso.de/resource/frl:6405903 https://doi.org/10.3354/meps10912 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3354/meps10912 |
container_title |
Marine Ecology Progress Series |
container_volume |
511 |
container_start_page |
297 |
op_container_end_page |
302 |
_version_ |
1779318506796351488 |