Elevated pCO2 does not impair performance in autotomised individuals of the intertidal predatory starfish Asterias rubens (Linnaeus, 1758)
The impacts of ocean acidification remain less well-studied in starfish compared to other echinoderm groups. This study examined the combined effects of elevated pCO2 and arm regeneration on the performance of the intertidal predatory starfish Asterias rubens, as both are predicted to come at a cost...
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ftunivrhodeislan:oai:digitalcommons.uri.edu:favs_facpubs-1320 2024-09-15T18:27:56+00:00 Elevated pCO2 does not impair performance in autotomised individuals of the intertidal predatory starfish Asterias rubens (Linnaeus, 1758) McCarthy, Ian D. Whiteley, Nia M. Fernandez, Wellington S. Ragagnin, Marilia N. Cornwell, Tomas O. Suckling, Coleen C. Turra, Alexander 2020-01-01T08:00:00Z https://digitalcommons.uri.edu/favs_facpubs/319 https://doi.org/10.1016/j.marenvres.2019.104841 unknown DigitalCommons@URI https://digitalcommons.uri.edu/favs_facpubs/319 doi:10.1016/j.marenvres.2019.104841 https://doi.org/10.1016/j.marenvres.2019.104841 Fisheries, Animal and Veterinary Sciences Faculty Publications Asteroidea Global change Growth Ocean acidification Regeneration Righting time response Water chemistry text 2020 ftunivrhodeislan https://doi.org/10.1016/j.marenvres.2019.104841 2024-08-21T00:09:34Z The impacts of ocean acidification remain less well-studied in starfish compared to other echinoderm groups. This study examined the combined effects of elevated pCO2 and arm regeneration on the performance of the intertidal predatory starfish Asterias rubens, as both are predicted to come at a cost to the individual. A two-way factorial experiment (~400 μatm vs ~1000 μatm; autotomised vs non-automised individuals) was used to examine growth rates, lipid content (pyloric caeca and gonads), and calcium content (body wall) in both intact and regenerating arms, as well as subsequent effects on rate of arm regeneration, righting time (behaviour) and mortality over 120 days. Autotomised individuals tended to show lower (not significant), survival and growth. Elevated pCO2 had no effect on mortality, body growth, arm regeneration, righting time or arm calcium content. Lipid content was higher in the pyloric caeca, but not in the gonads, in response to elevated pCO2 irrespective of autotomisation. The results of the study suggest that adult A. rubens remain unaffected by increased pCO2 and/or arm autotomy for 120 days, although longer term experiments are necessary as the results indicated that survival, growth and calcification may be impaired with longer-term exposure to elevated pCO2. Text Ocean acidification University of Rhode Island: DigitalCommons@URI Marine Environmental Research 153 104841 |
institution |
Open Polar |
collection |
University of Rhode Island: DigitalCommons@URI |
op_collection_id |
ftunivrhodeislan |
language |
unknown |
topic |
Asteroidea Global change Growth Ocean acidification Regeneration Righting time response Water chemistry |
spellingShingle |
Asteroidea Global change Growth Ocean acidification Regeneration Righting time response Water chemistry McCarthy, Ian D. Whiteley, Nia M. Fernandez, Wellington S. Ragagnin, Marilia N. Cornwell, Tomas O. Suckling, Coleen C. Turra, Alexander Elevated pCO2 does not impair performance in autotomised individuals of the intertidal predatory starfish Asterias rubens (Linnaeus, 1758) |
topic_facet |
Asteroidea Global change Growth Ocean acidification Regeneration Righting time response Water chemistry |
description |
The impacts of ocean acidification remain less well-studied in starfish compared to other echinoderm groups. This study examined the combined effects of elevated pCO2 and arm regeneration on the performance of the intertidal predatory starfish Asterias rubens, as both are predicted to come at a cost to the individual. A two-way factorial experiment (~400 μatm vs ~1000 μatm; autotomised vs non-automised individuals) was used to examine growth rates, lipid content (pyloric caeca and gonads), and calcium content (body wall) in both intact and regenerating arms, as well as subsequent effects on rate of arm regeneration, righting time (behaviour) and mortality over 120 days. Autotomised individuals tended to show lower (not significant), survival and growth. Elevated pCO2 had no effect on mortality, body growth, arm regeneration, righting time or arm calcium content. Lipid content was higher in the pyloric caeca, but not in the gonads, in response to elevated pCO2 irrespective of autotomisation. The results of the study suggest that adult A. rubens remain unaffected by increased pCO2 and/or arm autotomy for 120 days, although longer term experiments are necessary as the results indicated that survival, growth and calcification may be impaired with longer-term exposure to elevated pCO2. |
format |
Text |
author |
McCarthy, Ian D. Whiteley, Nia M. Fernandez, Wellington S. Ragagnin, Marilia N. Cornwell, Tomas O. Suckling, Coleen C. Turra, Alexander |
author_facet |
McCarthy, Ian D. Whiteley, Nia M. Fernandez, Wellington S. Ragagnin, Marilia N. Cornwell, Tomas O. Suckling, Coleen C. Turra, Alexander |
author_sort |
McCarthy, Ian D. |
title |
Elevated pCO2 does not impair performance in autotomised individuals of the intertidal predatory starfish Asterias rubens (Linnaeus, 1758) |
title_short |
Elevated pCO2 does not impair performance in autotomised individuals of the intertidal predatory starfish Asterias rubens (Linnaeus, 1758) |
title_full |
Elevated pCO2 does not impair performance in autotomised individuals of the intertidal predatory starfish Asterias rubens (Linnaeus, 1758) |
title_fullStr |
Elevated pCO2 does not impair performance in autotomised individuals of the intertidal predatory starfish Asterias rubens (Linnaeus, 1758) |
title_full_unstemmed |
Elevated pCO2 does not impair performance in autotomised individuals of the intertidal predatory starfish Asterias rubens (Linnaeus, 1758) |
title_sort |
elevated pco2 does not impair performance in autotomised individuals of the intertidal predatory starfish asterias rubens (linnaeus, 1758) |
publisher |
DigitalCommons@URI |
publishDate |
2020 |
url |
https://digitalcommons.uri.edu/favs_facpubs/319 https://doi.org/10.1016/j.marenvres.2019.104841 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
Fisheries, Animal and Veterinary Sciences Faculty Publications |
op_relation |
https://digitalcommons.uri.edu/favs_facpubs/319 doi:10.1016/j.marenvres.2019.104841 https://doi.org/10.1016/j.marenvres.2019.104841 |
op_doi |
https://doi.org/10.1016/j.marenvres.2019.104841 |
container_title |
Marine Environmental Research |
container_volume |
153 |
container_start_page |
104841 |
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1810469226948853760 |