Amelioration of ocean acidification and warming effects through physiological buffering of a macroalgae
Concurrent anthropogenic global climate change and ocean acidification are expected to have a negative impact on calcifying marine organisms. While knowledge of biological responses of organisms to oceanic stress has emerged from single-species experiments, these do not capture ecologically relevant...
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ftjamescook:oai:researchonline.jcu.edu.au:64004 2024-02-11T10:07:25+01:00 Amelioration of ocean acidification and warming effects through physiological buffering of a macroalgae Doo, Steve S. Leplastrier, Aero Graba-Landry, Alexia Harianto, Januar Coleman, Ross A Byrne, Maria 2020 application/pdf https://researchonline.jcu.edu.au/64004/1/64004.pdf unknown Wiley-Blackwell https://doi.org/10.1002/ece3.6552 https://researchonline.jcu.edu.au/64004/ https://researchonline.jcu.edu.au/64004/1/64004.pdf Doo, Steve S., Leplastrier, Aero, Graba-Landry, Alexia, Harianto, Januar, Coleman, Ross A, and Byrne, Maria (2020) Amelioration of ocean acidification and warming effects through physiological buffering of a macroalgae. Ecology and Evolution, 10 (15). pp. 8465-8475. open Article PeerReviewed 2020 ftjamescook https://doi.org/10.1002/ece3.6552 2024-01-15T23:48:46Z Concurrent anthropogenic global climate change and ocean acidification are expected to have a negative impact on calcifying marine organisms. While knowledge of biological responses of organisms to oceanic stress has emerged from single-species experiments, these do not capture ecologically relevant scenarios where the potential for multi-organism physiological interactions is assessed. Marine algae provide an interesting case study, as their photosynthetic activity elevates pH in the surrounding microenvironment, potentially buffering more acidic conditions for associated epiphytes. We present findings that indicate increased tolerance of an important epiphytic for aminifera, Marginopora vertebralis, to the effects of increased temperature (+/- 3 degrees C) and p CO2(similar to 1,000 mu atm) when associated with its common algal host, Laurencia intricata. Specimens of M. vertebralis were incubated for 15 days in flow-through aquaria simulating current and end-of-century temperature and pH conditions. Physiological measures of growth (change in wet weight), calcification (measured change in total alkalinity in closed bottles), photochemical efficiency (Fv/Fm), total chlorophyll, photosynthesis (oxygen flux), and respiration were determined. When incubated in isolation,M. vertebralis-exhibited reduced growth in end-of-century projections of ocean acidification conditions, while calcification rates were lowest in the high-temperature, low-pH treatment. Interestingly, association with L. intricata ameliorated these stress effects with the growth and calcification rates ofM. vertebralis being similar to those observed in ambient conditions. Total chlorophyll levels in M. vertebral is decreased when in association with L. intricata, while maximum photochemical efficiency increased in ambient conditions. Net production estimates remained similar between M. vertebralis in isolation and in association with L. intricata, although both production and respiration rates ofM. vertebralis were significantly higher when ... Article in Journal/Newspaper Ocean acidification James Cook University, Australia: ResearchOnline@JCU Ecology and Evolution 10 15 8465 8475 |
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Open Polar |
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James Cook University, Australia: ResearchOnline@JCU |
op_collection_id |
ftjamescook |
language |
unknown |
description |
Concurrent anthropogenic global climate change and ocean acidification are expected to have a negative impact on calcifying marine organisms. While knowledge of biological responses of organisms to oceanic stress has emerged from single-species experiments, these do not capture ecologically relevant scenarios where the potential for multi-organism physiological interactions is assessed. Marine algae provide an interesting case study, as their photosynthetic activity elevates pH in the surrounding microenvironment, potentially buffering more acidic conditions for associated epiphytes. We present findings that indicate increased tolerance of an important epiphytic for aminifera, Marginopora vertebralis, to the effects of increased temperature (+/- 3 degrees C) and p CO2(similar to 1,000 mu atm) when associated with its common algal host, Laurencia intricata. Specimens of M. vertebralis were incubated for 15 days in flow-through aquaria simulating current and end-of-century temperature and pH conditions. Physiological measures of growth (change in wet weight), calcification (measured change in total alkalinity in closed bottles), photochemical efficiency (Fv/Fm), total chlorophyll, photosynthesis (oxygen flux), and respiration were determined. When incubated in isolation,M. vertebralis-exhibited reduced growth in end-of-century projections of ocean acidification conditions, while calcification rates were lowest in the high-temperature, low-pH treatment. Interestingly, association with L. intricata ameliorated these stress effects with the growth and calcification rates ofM. vertebralis being similar to those observed in ambient conditions. Total chlorophyll levels in M. vertebral is decreased when in association with L. intricata, while maximum photochemical efficiency increased in ambient conditions. Net production estimates remained similar between M. vertebralis in isolation and in association with L. intricata, although both production and respiration rates ofM. vertebralis were significantly higher when ... |
format |
Article in Journal/Newspaper |
author |
Doo, Steve S. Leplastrier, Aero Graba-Landry, Alexia Harianto, Januar Coleman, Ross A Byrne, Maria |
spellingShingle |
Doo, Steve S. Leplastrier, Aero Graba-Landry, Alexia Harianto, Januar Coleman, Ross A Byrne, Maria Amelioration of ocean acidification and warming effects through physiological buffering of a macroalgae |
author_facet |
Doo, Steve S. Leplastrier, Aero Graba-Landry, Alexia Harianto, Januar Coleman, Ross A Byrne, Maria |
author_sort |
Doo, Steve S. |
title |
Amelioration of ocean acidification and warming effects through physiological buffering of a macroalgae |
title_short |
Amelioration of ocean acidification and warming effects through physiological buffering of a macroalgae |
title_full |
Amelioration of ocean acidification and warming effects through physiological buffering of a macroalgae |
title_fullStr |
Amelioration of ocean acidification and warming effects through physiological buffering of a macroalgae |
title_full_unstemmed |
Amelioration of ocean acidification and warming effects through physiological buffering of a macroalgae |
title_sort |
amelioration of ocean acidification and warming effects through physiological buffering of a macroalgae |
publisher |
Wiley-Blackwell |
publishDate |
2020 |
url |
https://researchonline.jcu.edu.au/64004/1/64004.pdf |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_relation |
https://doi.org/10.1002/ece3.6552 https://researchonline.jcu.edu.au/64004/ https://researchonline.jcu.edu.au/64004/1/64004.pdf Doo, Steve S., Leplastrier, Aero, Graba-Landry, Alexia, Harianto, Januar, Coleman, Ross A, and Byrne, Maria (2020) Amelioration of ocean acidification and warming effects through physiological buffering of a macroalgae. Ecology and Evolution, 10 (15). pp. 8465-8475. |
op_rights |
open |
op_doi |
https://doi.org/10.1002/ece3.6552 |
container_title |
Ecology and Evolution |
container_volume |
10 |
container_issue |
15 |
container_start_page |
8465 |
op_container_end_page |
8475 |
_version_ |
1790605979272871936 |