Effects of CO2-induced ocean acidification on physiological and mechanical properties of the starfish Asterias rubens
The increase in atmospheric CO2 due to anthropogenic activity results in an acidification of the surface waters of the oceans. Its impact will depend on the considered organisms and ecosystems. The intertidal may harbor organisms pre-adapted to the upcoming changes as they face tidal pH and temperat...
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ftunivbruxelles:oai:dipot.ulb.ac.be:2013/146432 2023-05-15T17:50:24+02:00 Effects of CO2-induced ocean acidification on physiological and mechanical properties of the starfish Asterias rubens Collard, Marie Catarino, A.I. Bonnet, Stéphanie Flammang, Patrick Dubois, Philippe 2013 No full-text files http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/146432 en eng uri/info:doi/10.1016/j.jembe.2013.06.003 uri/info:scp/84880101018 http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/146432 Journal of experimental marine biology and ecology, 446 Sciences exactes et naturelles info:eu-repo/semantics/article info:ulb-repo/semantics/articlePeerReview info:ulb-repo/semantics/openurl/article 2013 ftunivbruxelles 2022-06-12T21:21:20Z The increase in atmospheric CO2 due to anthropogenic activity results in an acidification of the surface waters of the oceans. Its impact will depend on the considered organisms and ecosystems. The intertidal may harbor organisms pre-adapted to the upcoming changes as they face tidal pH and temperature fluctuations. However, these environments will be more affected as shallow waters will face the highest decrease in seawater pH. In this context, the effects of reduced environmental pH on the physiology and tube feet mechanical properties of the intertidal starfish Asterias rubens, a top predator, were investigated during 15 and 27days. A. rubens showed a respiratory acidosis with its coelomic fluid pH always lower than that of seawater. This acidosis was most pronounced at pH7.4. Notwithstanding, the starfish showed no significant variations in RNA/DNA ratio of different tissues and in tube feet strength. However, respiration rates were significantly lower for individuals maintained at reduced seawater pH. Within the ocean acidification context, the present results suggest that A. rubens withstands the effects of reduced seawater pH, at least for medium term exposures. info:eu-repo/semantics/published Article in Journal/Newspaper Ocean acidification DI-fusion : dépôt institutionnel de l'Université libre de Bruxelles (ULB) |
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DI-fusion : dépôt institutionnel de l'Université libre de Bruxelles (ULB) |
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ftunivbruxelles |
language |
English |
topic |
Sciences exactes et naturelles |
spellingShingle |
Sciences exactes et naturelles Collard, Marie Catarino, A.I. Bonnet, Stéphanie Flammang, Patrick Dubois, Philippe Effects of CO2-induced ocean acidification on physiological and mechanical properties of the starfish Asterias rubens |
topic_facet |
Sciences exactes et naturelles |
description |
The increase in atmospheric CO2 due to anthropogenic activity results in an acidification of the surface waters of the oceans. Its impact will depend on the considered organisms and ecosystems. The intertidal may harbor organisms pre-adapted to the upcoming changes as they face tidal pH and temperature fluctuations. However, these environments will be more affected as shallow waters will face the highest decrease in seawater pH. In this context, the effects of reduced environmental pH on the physiology and tube feet mechanical properties of the intertidal starfish Asterias rubens, a top predator, were investigated during 15 and 27days. A. rubens showed a respiratory acidosis with its coelomic fluid pH always lower than that of seawater. This acidosis was most pronounced at pH7.4. Notwithstanding, the starfish showed no significant variations in RNA/DNA ratio of different tissues and in tube feet strength. However, respiration rates were significantly lower for individuals maintained at reduced seawater pH. Within the ocean acidification context, the present results suggest that A. rubens withstands the effects of reduced seawater pH, at least for medium term exposures. info:eu-repo/semantics/published |
format |
Article in Journal/Newspaper |
author |
Collard, Marie Catarino, A.I. Bonnet, Stéphanie Flammang, Patrick Dubois, Philippe |
author_facet |
Collard, Marie Catarino, A.I. Bonnet, Stéphanie Flammang, Patrick Dubois, Philippe |
author_sort |
Collard, Marie |
title |
Effects of CO2-induced ocean acidification on physiological and mechanical properties of the starfish Asterias rubens |
title_short |
Effects of CO2-induced ocean acidification on physiological and mechanical properties of the starfish Asterias rubens |
title_full |
Effects of CO2-induced ocean acidification on physiological and mechanical properties of the starfish Asterias rubens |
title_fullStr |
Effects of CO2-induced ocean acidification on physiological and mechanical properties of the starfish Asterias rubens |
title_full_unstemmed |
Effects of CO2-induced ocean acidification on physiological and mechanical properties of the starfish Asterias rubens |
title_sort |
effects of co2-induced ocean acidification on physiological and mechanical properties of the starfish asterias rubens |
publishDate |
2013 |
url |
http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/146432 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
Journal of experimental marine biology and ecology, 446 |
op_relation |
uri/info:doi/10.1016/j.jembe.2013.06.003 uri/info:scp/84880101018 http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/146432 |
_version_ |
1766157133503528960 |