Effects of ocean acidification on the growth of calcifying and non-calcifying algae and on jaw/test ratio and test robustness of sea urchins fed the different algae, supplement to: Asnaghi, Valentina; Chiantore, Mariachiara; Mangialajo, Luisa; Gazeau, Frédéric; Francour, Patrice; Alliouane, Samir; Gattuso, Jean-Pierre (2013): Cascading Effects of Ocean Acidification in a Rocky Subtidal Community. PLoS ONE, 8(4), e61978
Temperate marine rocky habitats may be alternatively characterized by well vegetated macroalgal assemblages or barren grounds, as a consequence of direct and indirect human impacts (e.g. overfishing) and grazing pressure by herbivorous organisms. In future scenarios of ocean acidification, calcifyin...
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ftdatacite:10.1594/pangaea.818626 2023-05-15T17:49:24+02:00 Effects of ocean acidification on the growth of calcifying and non-calcifying algae and on jaw/test ratio and test robustness of sea urchins fed the different algae, supplement to: Asnaghi, Valentina; Chiantore, Mariachiara; Mangialajo, Luisa; Gazeau, Frédéric; Francour, Patrice; Alliouane, Samir; Gattuso, Jean-Pierre (2013): Cascading Effects of Ocean Acidification in a Rocky Subtidal Community. PLoS ONE, 8(4), e61978 Asnaghi, Valentina Chiantore, Mariachiara Mangialajo, Luisa Gazeau, Frédéric Francour, Patrice Alliouane, Samir Gattuso, Jean-Pierre 2013 application/zip https://dx.doi.org/10.1594/pangaea.818626 https://doi.pangaea.de/10.1594/PANGAEA.818626 en eng PANGAEA - Data Publisher for Earth & Environmental Science https://dx.doi.org/10.1371/journal.pone.0061978.t004 https://dx.doi.org/10.1594/pangaea.830737 Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 CC-BY Experiment European Project on Ocean Acidification EPOCA Mediterranean Sea Acidification in a Changing Climate MedSeA Supplementary Collection of Datasets Collection article 2013 ftdatacite https://doi.org/10.1594/pangaea.818626 https://doi.org/10.1371/journal.pone.0061978.t004 https://doi.org/10.1594/pangaea.830737 2022-02-08T16:24:46Z Temperate marine rocky habitats may be alternatively characterized by well vegetated macroalgal assemblages or barren grounds, as a consequence of direct and indirect human impacts (e.g. overfishing) and grazing pressure by herbivorous organisms. In future scenarios of ocean acidification, calcifying organisms are expected to be less competitive: among these two key elements of the rocky subtidal food web, coralline algae and sea urchins. In order to highlight how the effects of increased pCO2 on individual calcifying species will be exacerbated by interactions with other trophic levels, we performed an experiment simultaneously testing ocean acidification effects on primary producers (calcifying and non-calcifying algae) and their grazers (sea urchins). Artificial communities, composed by juveniles of the sea urchin Paracentrotus lividus and calcifying (Corallina elongata) and non-calcifying (Cystoseira amentacea var stricta, Dictyota dichotoma) macroalgae, were subjected to pCO2 levels of 390, 550, 750 and 1000 µatm in the laboratory. Our study highlighted a direct pCO2 effect on coralline algae and on sea urchin defense from predation (test robustness). There was no direct effect on the non-calcifying macroalgae. More interestingly, we highlighted diet-mediated effects on test robustness and on the Aristotle's lantern size. In a future scenario of ocean acidification a decrease of sea urchins' density is expected, due to lower defense from predation, as a direct consequence of pH decrease, and to a reduced availability of calcifying macroalgae, important component of urchins' diet. The effects of ocean acidification may therefore be contrasting on well vegetated macroalgal assemblages and barren grounds: in the absence of other human impacts, a decrease of biodiversity can be predicted in vegetated macroalgal assemblages, whereas a lower density of sea urchin could help the recovery of shallow subtidal rocky areas affected by overfishing from barren grounds to assemblages dominated by fleshy macroalgae. Article in Journal/Newspaper Ocean acidification DataCite Metadata Store (German National Library of Science and Technology) Luisa ENVELOPE(-62.376,-62.376,-64.605,-64.605) Valentina ENVELOPE(161.866,161.866,55.065,55.065) |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Experiment European Project on Ocean Acidification EPOCA Mediterranean Sea Acidification in a Changing Climate MedSeA |
spellingShingle |
Experiment European Project on Ocean Acidification EPOCA Mediterranean Sea Acidification in a Changing Climate MedSeA Asnaghi, Valentina Chiantore, Mariachiara Mangialajo, Luisa Gazeau, Frédéric Francour, Patrice Alliouane, Samir Gattuso, Jean-Pierre Effects of ocean acidification on the growth of calcifying and non-calcifying algae and on jaw/test ratio and test robustness of sea urchins fed the different algae, supplement to: Asnaghi, Valentina; Chiantore, Mariachiara; Mangialajo, Luisa; Gazeau, Frédéric; Francour, Patrice; Alliouane, Samir; Gattuso, Jean-Pierre (2013): Cascading Effects of Ocean Acidification in a Rocky Subtidal Community. PLoS ONE, 8(4), e61978 |
topic_facet |
Experiment European Project on Ocean Acidification EPOCA Mediterranean Sea Acidification in a Changing Climate MedSeA |
description |
Temperate marine rocky habitats may be alternatively characterized by well vegetated macroalgal assemblages or barren grounds, as a consequence of direct and indirect human impacts (e.g. overfishing) and grazing pressure by herbivorous organisms. In future scenarios of ocean acidification, calcifying organisms are expected to be less competitive: among these two key elements of the rocky subtidal food web, coralline algae and sea urchins. In order to highlight how the effects of increased pCO2 on individual calcifying species will be exacerbated by interactions with other trophic levels, we performed an experiment simultaneously testing ocean acidification effects on primary producers (calcifying and non-calcifying algae) and their grazers (sea urchins). Artificial communities, composed by juveniles of the sea urchin Paracentrotus lividus and calcifying (Corallina elongata) and non-calcifying (Cystoseira amentacea var stricta, Dictyota dichotoma) macroalgae, were subjected to pCO2 levels of 390, 550, 750 and 1000 µatm in the laboratory. Our study highlighted a direct pCO2 effect on coralline algae and on sea urchin defense from predation (test robustness). There was no direct effect on the non-calcifying macroalgae. More interestingly, we highlighted diet-mediated effects on test robustness and on the Aristotle's lantern size. In a future scenario of ocean acidification a decrease of sea urchins' density is expected, due to lower defense from predation, as a direct consequence of pH decrease, and to a reduced availability of calcifying macroalgae, important component of urchins' diet. The effects of ocean acidification may therefore be contrasting on well vegetated macroalgal assemblages and barren grounds: in the absence of other human impacts, a decrease of biodiversity can be predicted in vegetated macroalgal assemblages, whereas a lower density of sea urchin could help the recovery of shallow subtidal rocky areas affected by overfishing from barren grounds to assemblages dominated by fleshy macroalgae. |
format |
Article in Journal/Newspaper |
author |
Asnaghi, Valentina Chiantore, Mariachiara Mangialajo, Luisa Gazeau, Frédéric Francour, Patrice Alliouane, Samir Gattuso, Jean-Pierre |
author_facet |
Asnaghi, Valentina Chiantore, Mariachiara Mangialajo, Luisa Gazeau, Frédéric Francour, Patrice Alliouane, Samir Gattuso, Jean-Pierre |
author_sort |
Asnaghi, Valentina |
title |
Effects of ocean acidification on the growth of calcifying and non-calcifying algae and on jaw/test ratio and test robustness of sea urchins fed the different algae, supplement to: Asnaghi, Valentina; Chiantore, Mariachiara; Mangialajo, Luisa; Gazeau, Frédéric; Francour, Patrice; Alliouane, Samir; Gattuso, Jean-Pierre (2013): Cascading Effects of Ocean Acidification in a Rocky Subtidal Community. PLoS ONE, 8(4), e61978 |
title_short |
Effects of ocean acidification on the growth of calcifying and non-calcifying algae and on jaw/test ratio and test robustness of sea urchins fed the different algae, supplement to: Asnaghi, Valentina; Chiantore, Mariachiara; Mangialajo, Luisa; Gazeau, Frédéric; Francour, Patrice; Alliouane, Samir; Gattuso, Jean-Pierre (2013): Cascading Effects of Ocean Acidification in a Rocky Subtidal Community. PLoS ONE, 8(4), e61978 |
title_full |
Effects of ocean acidification on the growth of calcifying and non-calcifying algae and on jaw/test ratio and test robustness of sea urchins fed the different algae, supplement to: Asnaghi, Valentina; Chiantore, Mariachiara; Mangialajo, Luisa; Gazeau, Frédéric; Francour, Patrice; Alliouane, Samir; Gattuso, Jean-Pierre (2013): Cascading Effects of Ocean Acidification in a Rocky Subtidal Community. PLoS ONE, 8(4), e61978 |
title_fullStr |
Effects of ocean acidification on the growth of calcifying and non-calcifying algae and on jaw/test ratio and test robustness of sea urchins fed the different algae, supplement to: Asnaghi, Valentina; Chiantore, Mariachiara; Mangialajo, Luisa; Gazeau, Frédéric; Francour, Patrice; Alliouane, Samir; Gattuso, Jean-Pierre (2013): Cascading Effects of Ocean Acidification in a Rocky Subtidal Community. PLoS ONE, 8(4), e61978 |
title_full_unstemmed |
Effects of ocean acidification on the growth of calcifying and non-calcifying algae and on jaw/test ratio and test robustness of sea urchins fed the different algae, supplement to: Asnaghi, Valentina; Chiantore, Mariachiara; Mangialajo, Luisa; Gazeau, Frédéric; Francour, Patrice; Alliouane, Samir; Gattuso, Jean-Pierre (2013): Cascading Effects of Ocean Acidification in a Rocky Subtidal Community. PLoS ONE, 8(4), e61978 |
title_sort |
effects of ocean acidification on the growth of calcifying and non-calcifying algae and on jaw/test ratio and test robustness of sea urchins fed the different algae, supplement to: asnaghi, valentina; chiantore, mariachiara; mangialajo, luisa; gazeau, frédéric; francour, patrice; alliouane, samir; gattuso, jean-pierre (2013): cascading effects of ocean acidification in a rocky subtidal community. plos one, 8(4), e61978 |
publisher |
PANGAEA - Data Publisher for Earth & Environmental Science |
publishDate |
2013 |
url |
https://dx.doi.org/10.1594/pangaea.818626 https://doi.pangaea.de/10.1594/PANGAEA.818626 |
long_lat |
ENVELOPE(-62.376,-62.376,-64.605,-64.605) ENVELOPE(161.866,161.866,55.065,55.065) |
geographic |
Luisa Valentina |
geographic_facet |
Luisa Valentina |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_relation |
https://dx.doi.org/10.1371/journal.pone.0061978.t004 https://dx.doi.org/10.1594/pangaea.830737 |
op_rights |
Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/pangaea.818626 https://doi.org/10.1371/journal.pone.0061978.t004 https://doi.org/10.1594/pangaea.830737 |
_version_ |
1766155734475603968 |