Effects of ocean acidification on the brown alga Padina pavonica: decalcification due to acute and chronic events.
Since the industrial revolution, anthropogenic CO₂ emissions have caused ocean acidification, which particularly affects calcified organisms. Given the fan-like calcified fronds of the brown alga Padina pavonica, we evaluated the acute (short-term) effects of a sudden pH drop due to a submarine volc...
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ftdoajarticles:oai:doaj.org/article:61977ba3636d46b98854acb50b392280 2023-05-15T17:50:00+02:00 Effects of ocean acidification on the brown alga Padina pavonica: decalcification due to acute and chronic events. Teba Gil-Díaz Ricardo Haroun Fernando Tuya Séfora Betancor María A Viera-Rodríguez 2014-01-01T00:00:00Z https://doi.org/10.1371/journal.pone.0108630 https://doaj.org/article/61977ba3636d46b98854acb50b392280 EN eng Public Library of Science (PLoS) http://europepmc.org/articles/PMC4182500?pdf=render https://doaj.org/toc/1932-6203 1932-6203 doi:10.1371/journal.pone.0108630 https://doaj.org/article/61977ba3636d46b98854acb50b392280 PLoS ONE, Vol 9, Iss 9, p e108630 (2014) Medicine R Science Q article 2014 ftdoajarticles https://doi.org/10.1371/journal.pone.0108630 2022-12-31T12:34:56Z Since the industrial revolution, anthropogenic CO₂ emissions have caused ocean acidification, which particularly affects calcified organisms. Given the fan-like calcified fronds of the brown alga Padina pavonica, we evaluated the acute (short-term) effects of a sudden pH drop due to a submarine volcanic eruption (October 2011-early March 2012) affecting offshore waters around El Hierro Island (Canary Islands, Spain). We further studied the chronic (long-term) effects of the continuous decrease in pH in the last decades around the Canarian waters. In both the observational and retrospective studies (using herbarium collections of P. pavonica thalli from the overall Canarian Archipelago), the percent of surface calcium carbonate coverage of P. pavonica thalli were contrasted with oceanographic data collected either in situ (volcanic eruption event) or from the ESTOC marine observatory data series (herbarium study). Results showed that this calcified alga is sensitive to acute and chronic environmental pH changes. In both cases, pH changes predicted surface thallus calcification, including a progressive decalcification over the last three decades. This result concurs with previous studies where calcareous organisms decalcify under more acidic conditions. Hence, Padina pavonica can be implemented as a bio-indicator of ocean acidification (at short and long time scales) for monitoring purposes over wide geographic ranges, as this macroalga is affected and thrives (unlike strict calcifiers) under more acidic conditions. Article in Journal/Newspaper Ocean acidification Directory of Open Access Journals: DOAJ Articles PLoS ONE 9 9 e108630 |
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Directory of Open Access Journals: DOAJ Articles |
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language |
English |
topic |
Medicine R Science Q |
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Medicine R Science Q Teba Gil-Díaz Ricardo Haroun Fernando Tuya Séfora Betancor María A Viera-Rodríguez Effects of ocean acidification on the brown alga Padina pavonica: decalcification due to acute and chronic events. |
topic_facet |
Medicine R Science Q |
description |
Since the industrial revolution, anthropogenic CO₂ emissions have caused ocean acidification, which particularly affects calcified organisms. Given the fan-like calcified fronds of the brown alga Padina pavonica, we evaluated the acute (short-term) effects of a sudden pH drop due to a submarine volcanic eruption (October 2011-early March 2012) affecting offshore waters around El Hierro Island (Canary Islands, Spain). We further studied the chronic (long-term) effects of the continuous decrease in pH in the last decades around the Canarian waters. In both the observational and retrospective studies (using herbarium collections of P. pavonica thalli from the overall Canarian Archipelago), the percent of surface calcium carbonate coverage of P. pavonica thalli were contrasted with oceanographic data collected either in situ (volcanic eruption event) or from the ESTOC marine observatory data series (herbarium study). Results showed that this calcified alga is sensitive to acute and chronic environmental pH changes. In both cases, pH changes predicted surface thallus calcification, including a progressive decalcification over the last three decades. This result concurs with previous studies where calcareous organisms decalcify under more acidic conditions. Hence, Padina pavonica can be implemented as a bio-indicator of ocean acidification (at short and long time scales) for monitoring purposes over wide geographic ranges, as this macroalga is affected and thrives (unlike strict calcifiers) under more acidic conditions. |
format |
Article in Journal/Newspaper |
author |
Teba Gil-Díaz Ricardo Haroun Fernando Tuya Séfora Betancor María A Viera-Rodríguez |
author_facet |
Teba Gil-Díaz Ricardo Haroun Fernando Tuya Séfora Betancor María A Viera-Rodríguez |
author_sort |
Teba Gil-Díaz |
title |
Effects of ocean acidification on the brown alga Padina pavonica: decalcification due to acute and chronic events. |
title_short |
Effects of ocean acidification on the brown alga Padina pavonica: decalcification due to acute and chronic events. |
title_full |
Effects of ocean acidification on the brown alga Padina pavonica: decalcification due to acute and chronic events. |
title_fullStr |
Effects of ocean acidification on the brown alga Padina pavonica: decalcification due to acute and chronic events. |
title_full_unstemmed |
Effects of ocean acidification on the brown alga Padina pavonica: decalcification due to acute and chronic events. |
title_sort |
effects of ocean acidification on the brown alga padina pavonica: decalcification due to acute and chronic events. |
publisher |
Public Library of Science (PLoS) |
publishDate |
2014 |
url |
https://doi.org/10.1371/journal.pone.0108630 https://doaj.org/article/61977ba3636d46b98854acb50b392280 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
PLoS ONE, Vol 9, Iss 9, p e108630 (2014) |
op_relation |
http://europepmc.org/articles/PMC4182500?pdf=render https://doaj.org/toc/1932-6203 1932-6203 doi:10.1371/journal.pone.0108630 https://doaj.org/article/61977ba3636d46b98854acb50b392280 |
op_doi |
https://doi.org/10.1371/journal.pone.0108630 |
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PLoS ONE |
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9 |
container_issue |
9 |
container_start_page |
e108630 |
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