Indirect effects of ocean acidification drive feeding and growth of juvenile crown-of-thorns starfish, Acanthaster planci
The indirect effects of changing climate in modulating trophic interactions can be as important as the direct effects of climate stressors on consumers. The success of the herbivorous juvenile stage of the crown-of-thorns starfish (COTS), Acanthaster planci, may be affected by the impacts of ocean c...
Published in: | Proceedings of the Royal Society B: Biological Sciences |
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Online Access: | https://epubs.scu.edu.au/esm_pubs/3259 https://doi.org/10.1098/rspb.2017.0778 |
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ftsoutherncu:oai:epubs.scu.edu.au:esm_pubs-4286 2023-05-15T17:49:59+02:00 Indirect effects of ocean acidification drive feeding and growth of juvenile crown-of-thorns starfish, Acanthaster planci Kamya, Pamela Z Byrne, Maria Mos, Benjamin Hall, Lauren Dworjanyn, Symon A 2017-01-01T08:00:00Z https://epubs.scu.edu.au/esm_pubs/3259 https://doi.org/10.1098/rspb.2017.0778 unknown ePublications@SCU School of Environment, Science and Engineering Papers climate change crustose coralline algae (CCA) crown-of-thorns starfish (COTS) CCA-herbivore interaction Environmental Sciences article 2017 ftsoutherncu https://doi.org/10.1098/rspb.2017.0778 2019-08-06T13:12:32Z The indirect effects of changing climate in modulating trophic interactions can be as important as the direct effects of climate stressors on consumers. The success of the herbivorous juvenile stage of the crown-of-thorns starfish (COTS), Acanthaster planci, may be affected by the impacts of ocean conditions on its crustose coralline algal (CCA) food. To partition the direct effects of near future ocean acidification on juvenile COTS and indirect effects through changes in their CCA food, COTS were grown in three pHT levels (7.9, 7.8, 7.6) and fed CCA grown at similar pH levels. Consumption of CCA by COTS was bolstered when the COTS were grown in low pH and when they were fed CCA grown in low pH regardless of the pH in which the COTS were reared. COTS fed CCA grown at pH 7.6 grew fastest, but the pH/pCO2 that the COTS were reared in had no direct effect on growth. Ocean acidification conditions decreased the C : N ratio and carbonate levels in the CCA. Bolstered growth in COTS may be driven by enhanced palatability, increased nutritive state and reduced defences of their CCA food. These results indicate that near future acidification will increase the success of early juvenile COTS and boost recruitment into the coral-eating life stage. Article in Journal/Newspaper Ocean acidification Southern Cross University: epublications@SCU Proceedings of the Royal Society B: Biological Sciences 284 1856 20170778 |
institution |
Open Polar |
collection |
Southern Cross University: epublications@SCU |
op_collection_id |
ftsoutherncu |
language |
unknown |
topic |
climate change crustose coralline algae (CCA) crown-of-thorns starfish (COTS) CCA-herbivore interaction Environmental Sciences |
spellingShingle |
climate change crustose coralline algae (CCA) crown-of-thorns starfish (COTS) CCA-herbivore interaction Environmental Sciences Kamya, Pamela Z Byrne, Maria Mos, Benjamin Hall, Lauren Dworjanyn, Symon A Indirect effects of ocean acidification drive feeding and growth of juvenile crown-of-thorns starfish, Acanthaster planci |
topic_facet |
climate change crustose coralline algae (CCA) crown-of-thorns starfish (COTS) CCA-herbivore interaction Environmental Sciences |
description |
The indirect effects of changing climate in modulating trophic interactions can be as important as the direct effects of climate stressors on consumers. The success of the herbivorous juvenile stage of the crown-of-thorns starfish (COTS), Acanthaster planci, may be affected by the impacts of ocean conditions on its crustose coralline algal (CCA) food. To partition the direct effects of near future ocean acidification on juvenile COTS and indirect effects through changes in their CCA food, COTS were grown in three pHT levels (7.9, 7.8, 7.6) and fed CCA grown at similar pH levels. Consumption of CCA by COTS was bolstered when the COTS were grown in low pH and when they were fed CCA grown in low pH regardless of the pH in which the COTS were reared. COTS fed CCA grown at pH 7.6 grew fastest, but the pH/pCO2 that the COTS were reared in had no direct effect on growth. Ocean acidification conditions decreased the C : N ratio and carbonate levels in the CCA. Bolstered growth in COTS may be driven by enhanced palatability, increased nutritive state and reduced defences of their CCA food. These results indicate that near future acidification will increase the success of early juvenile COTS and boost recruitment into the coral-eating life stage. |
format |
Article in Journal/Newspaper |
author |
Kamya, Pamela Z Byrne, Maria Mos, Benjamin Hall, Lauren Dworjanyn, Symon A |
author_facet |
Kamya, Pamela Z Byrne, Maria Mos, Benjamin Hall, Lauren Dworjanyn, Symon A |
author_sort |
Kamya, Pamela Z |
title |
Indirect effects of ocean acidification drive feeding and growth of juvenile crown-of-thorns starfish, Acanthaster planci |
title_short |
Indirect effects of ocean acidification drive feeding and growth of juvenile crown-of-thorns starfish, Acanthaster planci |
title_full |
Indirect effects of ocean acidification drive feeding and growth of juvenile crown-of-thorns starfish, Acanthaster planci |
title_fullStr |
Indirect effects of ocean acidification drive feeding and growth of juvenile crown-of-thorns starfish, Acanthaster planci |
title_full_unstemmed |
Indirect effects of ocean acidification drive feeding and growth of juvenile crown-of-thorns starfish, Acanthaster planci |
title_sort |
indirect effects of ocean acidification drive feeding and growth of juvenile crown-of-thorns starfish, acanthaster planci |
publisher |
ePublications@SCU |
publishDate |
2017 |
url |
https://epubs.scu.edu.au/esm_pubs/3259 https://doi.org/10.1098/rspb.2017.0778 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
School of Environment, Science and Engineering Papers |
op_doi |
https://doi.org/10.1098/rspb.2017.0778 |
container_title |
Proceedings of the Royal Society B: Biological Sciences |
container_volume |
284 |
container_issue |
1856 |
container_start_page |
20170778 |
_version_ |
1766156548564844544 |