High CO 2 decreases the long‐term resilience of the free‐living coralline algae Phymatolithon lusitanicum
Abstract Mäerl/rhodolith beds are protected habitats that may be affected by ocean acidification ( OA ), but it is still unclear how the availability of CO 2 will affect the metabolism of these organisms. Some of the inconsistencies found among OA experimental studies may be related to experimental...
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crwiley:10.1002/ece3.4020 2024-09-09T20:01:14+00:00 High CO 2 decreases the long‐term resilience of the free‐living coralline algae Phymatolithon lusitanicum Sordo, Laura Santos, Rui Barrote, Isabel Silva, João Fundação para a Ciência e a Tecnologia 2018 http://dx.doi.org/10.1002/ece3.4020 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fece3.4020 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ece3.4020 en eng Wiley http://creativecommons.org/licenses/by/4.0/ Ecology and Evolution volume 8, issue 10, page 4781-4792 ISSN 2045-7758 2045-7758 journal-article 2018 crwiley https://doi.org/10.1002/ece3.4020 2024-06-20T04:25:48Z Abstract Mäerl/rhodolith beds are protected habitats that may be affected by ocean acidification ( OA ), but it is still unclear how the availability of CO 2 will affect the metabolism of these organisms. Some of the inconsistencies found among OA experimental studies may be related to experimental exposure time and synergetic effects with other stressors. Here, we investigated the long‐term (up to 20 months) effects of OA on the production and calcification of the most common mäerl species of southern Portugal, Phymatolithon lusitanicum . Both the photosynthetic and calcification rates increased with CO 2 after the first 11 months of the experiment, whereas respiration slightly decreased with CO 2 . After 20 months, the pattern was reversed. Acidified algae showed lower photosynthetic and calcification rates, as well as lower accumulated growth than control algae, suggesting that a metabolic threshold was exceeded. Our results indicate that long‐term exposure to high CO 2 will decrease the resilience of Phymatolithon lusitanicum . Our results also show that shallow communities of these rhodoliths may be particularly at risk, while deeper rhodolith beds may become ocean acidification refuges for this biological community. Article in Journal/Newspaper Ocean acidification Wiley Online Library Ecology and Evolution 8 10 4781 4792 |
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English |
description |
Abstract Mäerl/rhodolith beds are protected habitats that may be affected by ocean acidification ( OA ), but it is still unclear how the availability of CO 2 will affect the metabolism of these organisms. Some of the inconsistencies found among OA experimental studies may be related to experimental exposure time and synergetic effects with other stressors. Here, we investigated the long‐term (up to 20 months) effects of OA on the production and calcification of the most common mäerl species of southern Portugal, Phymatolithon lusitanicum . Both the photosynthetic and calcification rates increased with CO 2 after the first 11 months of the experiment, whereas respiration slightly decreased with CO 2 . After 20 months, the pattern was reversed. Acidified algae showed lower photosynthetic and calcification rates, as well as lower accumulated growth than control algae, suggesting that a metabolic threshold was exceeded. Our results indicate that long‐term exposure to high CO 2 will decrease the resilience of Phymatolithon lusitanicum . Our results also show that shallow communities of these rhodoliths may be particularly at risk, while deeper rhodolith beds may become ocean acidification refuges for this biological community. |
author2 |
Fundação para a Ciência e a Tecnologia |
format |
Article in Journal/Newspaper |
author |
Sordo, Laura Santos, Rui Barrote, Isabel Silva, João |
spellingShingle |
Sordo, Laura Santos, Rui Barrote, Isabel Silva, João High CO 2 decreases the long‐term resilience of the free‐living coralline algae Phymatolithon lusitanicum |
author_facet |
Sordo, Laura Santos, Rui Barrote, Isabel Silva, João |
author_sort |
Sordo, Laura |
title |
High CO 2 decreases the long‐term resilience of the free‐living coralline algae Phymatolithon lusitanicum |
title_short |
High CO 2 decreases the long‐term resilience of the free‐living coralline algae Phymatolithon lusitanicum |
title_full |
High CO 2 decreases the long‐term resilience of the free‐living coralline algae Phymatolithon lusitanicum |
title_fullStr |
High CO 2 decreases the long‐term resilience of the free‐living coralline algae Phymatolithon lusitanicum |
title_full_unstemmed |
High CO 2 decreases the long‐term resilience of the free‐living coralline algae Phymatolithon lusitanicum |
title_sort |
high co 2 decreases the long‐term resilience of the free‐living coralline algae phymatolithon lusitanicum |
publisher |
Wiley |
publishDate |
2018 |
url |
http://dx.doi.org/10.1002/ece3.4020 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fece3.4020 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ece3.4020 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
Ecology and Evolution volume 8, issue 10, page 4781-4792 ISSN 2045-7758 2045-7758 |
op_rights |
http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1002/ece3.4020 |
container_title |
Ecology and Evolution |
container_volume |
8 |
container_issue |
10 |
container_start_page |
4781 |
op_container_end_page |
4792 |
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1809933041271832576 |