Effects of elevated pCO2 on the metabolism of a temperate rhodolith Lithothamnion corallioides grown under different temperatures
International audience Coralline algae are considered among the most sensitive species to near future ocean acidification. We tested the effects of elevated pCO2 on the metabolism of the free-living coralline alga Lithothamnion corallioides (“maerl”) and the interactions with changes in temperature....
Published in: | Journal of Phycology |
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ftsorbonneuniv:oai:HAL:hal-01255952v1 2024-06-23T07:55:50+00:00 Effects of elevated pCO2 on the metabolism of a temperate rhodolith Lithothamnion corallioides grown under different temperatures Noisette, Fanny Duong, Gwendoline Six, Christophe Davoult, Dominique Martin, Sophie Station biologique de Roscoff Roscoff (SBR) Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS) Laboratoire d’Océanologie et de Géosciences (LOG) - UMR 8187 (LOG) Institut national des sciences de l'Univers (INSU - CNRS)-Université du Littoral Côte d'Opale (ULCO)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD France-Nord ) Procaryotes Phototrophes Marins = MArine Phototrophic Prokaryotes (MAPP) Adaptation et diversité en milieu marin (AD2M) Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Station biologique de Roscoff Roscoff (SBR) Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) Ecogéochimie et Fonctionnement des Ecosystèmes Benthiques (EFEB) 2013 https://hal.science/hal-01255952 https://doi.org/10.1111/jpy.12085 en eng HAL CCSD Wiley info:eu-repo/semantics/altIdentifier/doi/10.1111/jpy.12085 hal-01255952 https://hal.science/hal-01255952 doi:10.1111/jpy.12085 ISSN: 0022-3646 EISSN: 1529-8817 Journal of Phycology https://hal.science/hal-01255952 Journal of Phycology, 2013, 49 (4), pp.746--757. ⟨10.1111/jpy.12085⟩ calcification coralline algae maerl ocean acidification photosynthesis pigment [SDV]Life Sciences [q-bio] [SDE]Environmental Sciences info:eu-repo/semantics/article Journal articles 2013 ftsorbonneuniv https://doi.org/10.1111/jpy.12085 2024-06-06T23:50:45Z International audience Coralline algae are considered among the most sensitive species to near future ocean acidification. We tested the effects of elevated pCO2 on the metabolism of the free-living coralline alga Lithothamnion corallioides (“maerl”) and the interactions with changes in temperature. Specimens were collected in North Brittany (France) and grown for 3 months at pCO2 of 380 (ambient pCO2), 550, 750, and 1000 μatm (elevated pCO2) and at successive temperatures of 10°C (ambient temperature in winter), 16°C (ambient temperature in summer), and 19°C (ambient temperature in summer +3°C). At each temperature, gross primary production, respiration (oxygen flux), and calcification (alkalinity flux) rates were assessed in the light and dark. Pigments were determined by HPLC. Chl a, carotene, and zeaxanthin were the three major pigments found in L. corallioides thalli. Elevated pCO2 did not affect pigment content while temperature slightly decreased zeaxanthin and carotene content at 10°C. Gross production was not affected by temperature but was significantly affected by pCO2 with an increase between 380 and 550 μatm. Light, dark, and diel (24 h) calcification rates strongly decreased with increasing pCO2 regardless of the temperature. Although elevated pCO2 only slightly affected gross production in L. corallioides, diel net calcification was reduced by up to 80% under the 1,000 μatm treatment. Our findings suggested that near future levels of CO2 will have profound consequences for carbon and carbonate budgets in rhodolith beds and for the sustainability of these habitats. Article in Journal/Newspaper Ocean acidification HAL Sorbonne Université Journal of Phycology 49 4 746 757 |
institution |
Open Polar |
collection |
HAL Sorbonne Université |
op_collection_id |
ftsorbonneuniv |
language |
English |
topic |
calcification coralline algae maerl ocean acidification photosynthesis pigment [SDV]Life Sciences [q-bio] [SDE]Environmental Sciences |
spellingShingle |
calcification coralline algae maerl ocean acidification photosynthesis pigment [SDV]Life Sciences [q-bio] [SDE]Environmental Sciences Noisette, Fanny Duong, Gwendoline Six, Christophe Davoult, Dominique Martin, Sophie Effects of elevated pCO2 on the metabolism of a temperate rhodolith Lithothamnion corallioides grown under different temperatures |
topic_facet |
calcification coralline algae maerl ocean acidification photosynthesis pigment [SDV]Life Sciences [q-bio] [SDE]Environmental Sciences |
description |
International audience Coralline algae are considered among the most sensitive species to near future ocean acidification. We tested the effects of elevated pCO2 on the metabolism of the free-living coralline alga Lithothamnion corallioides (“maerl”) and the interactions with changes in temperature. Specimens were collected in North Brittany (France) and grown for 3 months at pCO2 of 380 (ambient pCO2), 550, 750, and 1000 μatm (elevated pCO2) and at successive temperatures of 10°C (ambient temperature in winter), 16°C (ambient temperature in summer), and 19°C (ambient temperature in summer +3°C). At each temperature, gross primary production, respiration (oxygen flux), and calcification (alkalinity flux) rates were assessed in the light and dark. Pigments were determined by HPLC. Chl a, carotene, and zeaxanthin were the three major pigments found in L. corallioides thalli. Elevated pCO2 did not affect pigment content while temperature slightly decreased zeaxanthin and carotene content at 10°C. Gross production was not affected by temperature but was significantly affected by pCO2 with an increase between 380 and 550 μatm. Light, dark, and diel (24 h) calcification rates strongly decreased with increasing pCO2 regardless of the temperature. Although elevated pCO2 only slightly affected gross production in L. corallioides, diel net calcification was reduced by up to 80% under the 1,000 μatm treatment. Our findings suggested that near future levels of CO2 will have profound consequences for carbon and carbonate budgets in rhodolith beds and for the sustainability of these habitats. |
author2 |
Station biologique de Roscoff Roscoff (SBR) Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS) Laboratoire d’Océanologie et de Géosciences (LOG) - UMR 8187 (LOG) Institut national des sciences de l'Univers (INSU - CNRS)-Université du Littoral Côte d'Opale (ULCO)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD France-Nord ) Procaryotes Phototrophes Marins = MArine Phototrophic Prokaryotes (MAPP) Adaptation et diversité en milieu marin (AD2M) Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Station biologique de Roscoff Roscoff (SBR) Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) Ecogéochimie et Fonctionnement des Ecosystèmes Benthiques (EFEB) |
format |
Article in Journal/Newspaper |
author |
Noisette, Fanny Duong, Gwendoline Six, Christophe Davoult, Dominique Martin, Sophie |
author_facet |
Noisette, Fanny Duong, Gwendoline Six, Christophe Davoult, Dominique Martin, Sophie |
author_sort |
Noisette, Fanny |
title |
Effects of elevated pCO2 on the metabolism of a temperate rhodolith Lithothamnion corallioides grown under different temperatures |
title_short |
Effects of elevated pCO2 on the metabolism of a temperate rhodolith Lithothamnion corallioides grown under different temperatures |
title_full |
Effects of elevated pCO2 on the metabolism of a temperate rhodolith Lithothamnion corallioides grown under different temperatures |
title_fullStr |
Effects of elevated pCO2 on the metabolism of a temperate rhodolith Lithothamnion corallioides grown under different temperatures |
title_full_unstemmed |
Effects of elevated pCO2 on the metabolism of a temperate rhodolith Lithothamnion corallioides grown under different temperatures |
title_sort |
effects of elevated pco2 on the metabolism of a temperate rhodolith lithothamnion corallioides grown under different temperatures |
publisher |
HAL CCSD |
publishDate |
2013 |
url |
https://hal.science/hal-01255952 https://doi.org/10.1111/jpy.12085 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
ISSN: 0022-3646 EISSN: 1529-8817 Journal of Phycology https://hal.science/hal-01255952 Journal of Phycology, 2013, 49 (4), pp.746--757. ⟨10.1111/jpy.12085⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1111/jpy.12085 hal-01255952 https://hal.science/hal-01255952 doi:10.1111/jpy.12085 |
op_doi |
https://doi.org/10.1111/jpy.12085 |
container_title |
Journal of Phycology |
container_volume |
49 |
container_issue |
4 |
container_start_page |
746 |
op_container_end_page |
757 |
_version_ |
1802648567497621504 |