Chemical characterization of the Punta de Fuencaliente CO 2 -enriched system (La Palma, NE Atlantic Ocean): a new natural laboratory for ocean acidification studies

We present a new natural carbon dioxide (CO 2 ) system located off the southern coast of the island of La Palma (Canary Islands, Spain). Like CO 2 seeps, these CO 2 submarine groundwater discharges (SGDs) can be used as an analogue to study the effects of ocean acidification (OA) on the marine realm...

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Published in:Biogeosciences
Main Authors: S. González-Delgado, D. González-Santana, M. Santana-Casiano, M. González-Dávila, C. A. Hernández, C. Sangil, J. C. Hernández
Format: Article in Journal/Newspaper
Language:English
Published: Copernicus Publications 2021
Subjects:
Online Access:https://doi.org/10.5194/bg-18-1673-2021
https://doaj.org/article/0fb4feffcdd24d358d6027c4ed1d6786
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spelling ftdoajarticles:oai:doaj.org/article:0fb4feffcdd24d358d6027c4ed1d6786 2023-05-15T17:50:51+02:00 Chemical characterization of the Punta de Fuencaliente CO 2 -enriched system (La Palma, NE Atlantic Ocean): a new natural laboratory for ocean acidification studies S. González-Delgado D. González-Santana M. Santana-Casiano M. González-Dávila C. A. Hernández C. Sangil J. C. Hernández 2021-03-01T00:00:00Z https://doi.org/10.5194/bg-18-1673-2021 https://doaj.org/article/0fb4feffcdd24d358d6027c4ed1d6786 EN eng Copernicus Publications https://bg.copernicus.org/articles/18/1673/2021/bg-18-1673-2021.pdf https://doaj.org/toc/1726-4170 https://doaj.org/toc/1726-4189 doi:10.5194/bg-18-1673-2021 1726-4170 1726-4189 https://doaj.org/article/0fb4feffcdd24d358d6027c4ed1d6786 Biogeosciences, Vol 18, Pp 1673-1687 (2021) Ecology QH540-549.5 Life QH501-531 Geology QE1-996.5 article 2021 ftdoajarticles https://doi.org/10.5194/bg-18-1673-2021 2022-12-31T07:48:04Z We present a new natural carbon dioxide (CO 2 ) system located off the southern coast of the island of La Palma (Canary Islands, Spain). Like CO 2 seeps, these CO 2 submarine groundwater discharges (SGDs) can be used as an analogue to study the effects of ocean acidification (OA) on the marine realm. With this aim, we present the chemical characterization of the area, describing the carbon system dynamics, by measuring pH, A T and C T and calculating Ω aragonite and calcite. Our explorations of the area have found several emission points with similar chemical features. Here, the C T varies from 2120.10 to 10 784.84 µ mol kg −1 , A T from 2415.20 to 10 817.12 µ mol kg −1 , pH from 7.12 to 8.07, Ω aragonite from 0.71 to 4.15 and Ω calcite from 1.09 to 6.49 units. Also, the CO 2 emission flux varies between 2.8 and 28 kg CO 2 d −1 , becoming a significant source of carbon. These CO 2 emissions, which are of volcanic origin, acidify the brackish groundwater that is discharged to the coast and alter the local seawater chemistry. Although this kind of acidified system is not a perfect image of future oceans, this area of La Palma is an exceptional spot to perform studies aimed at understanding the effect of different levels of OA on the functioning of marine ecosystems. These studies can then be used to comprehend how life has persisted through past eras, with higher atmospheric CO 2 , or to predict the consequences of present fossil fuel usage on the marine ecosystem of the future oceans. Article in Journal/Newspaper Ocean acidification Directory of Open Access Journals: DOAJ Articles Biogeosciences 18 5 1673 1687
institution Open Polar
collection Directory of Open Access Journals: DOAJ Articles
op_collection_id ftdoajarticles
language English
topic Ecology
QH540-549.5
Life
QH501-531
Geology
QE1-996.5
spellingShingle Ecology
QH540-549.5
Life
QH501-531
Geology
QE1-996.5
S. González-Delgado
D. González-Santana
M. Santana-Casiano
M. González-Dávila
C. A. Hernández
C. Sangil
J. C. Hernández
Chemical characterization of the Punta de Fuencaliente CO 2 -enriched system (La Palma, NE Atlantic Ocean): a new natural laboratory for ocean acidification studies
topic_facet Ecology
QH540-549.5
Life
QH501-531
Geology
QE1-996.5
description We present a new natural carbon dioxide (CO 2 ) system located off the southern coast of the island of La Palma (Canary Islands, Spain). Like CO 2 seeps, these CO 2 submarine groundwater discharges (SGDs) can be used as an analogue to study the effects of ocean acidification (OA) on the marine realm. With this aim, we present the chemical characterization of the area, describing the carbon system dynamics, by measuring pH, A T and C T and calculating Ω aragonite and calcite. Our explorations of the area have found several emission points with similar chemical features. Here, the C T varies from 2120.10 to 10 784.84 µ mol kg −1 , A T from 2415.20 to 10 817.12 µ mol kg −1 , pH from 7.12 to 8.07, Ω aragonite from 0.71 to 4.15 and Ω calcite from 1.09 to 6.49 units. Also, the CO 2 emission flux varies between 2.8 and 28 kg CO 2 d −1 , becoming a significant source of carbon. These CO 2 emissions, which are of volcanic origin, acidify the brackish groundwater that is discharged to the coast and alter the local seawater chemistry. Although this kind of acidified system is not a perfect image of future oceans, this area of La Palma is an exceptional spot to perform studies aimed at understanding the effect of different levels of OA on the functioning of marine ecosystems. These studies can then be used to comprehend how life has persisted through past eras, with higher atmospheric CO 2 , or to predict the consequences of present fossil fuel usage on the marine ecosystem of the future oceans.
format Article in Journal/Newspaper
author S. González-Delgado
D. González-Santana
M. Santana-Casiano
M. González-Dávila
C. A. Hernández
C. Sangil
J. C. Hernández
author_facet S. González-Delgado
D. González-Santana
M. Santana-Casiano
M. González-Dávila
C. A. Hernández
C. Sangil
J. C. Hernández
author_sort S. González-Delgado
title Chemical characterization of the Punta de Fuencaliente CO 2 -enriched system (La Palma, NE Atlantic Ocean): a new natural laboratory for ocean acidification studies
title_short Chemical characterization of the Punta de Fuencaliente CO 2 -enriched system (La Palma, NE Atlantic Ocean): a new natural laboratory for ocean acidification studies
title_full Chemical characterization of the Punta de Fuencaliente CO 2 -enriched system (La Palma, NE Atlantic Ocean): a new natural laboratory for ocean acidification studies
title_fullStr Chemical characterization of the Punta de Fuencaliente CO 2 -enriched system (La Palma, NE Atlantic Ocean): a new natural laboratory for ocean acidification studies
title_full_unstemmed Chemical characterization of the Punta de Fuencaliente CO 2 -enriched system (La Palma, NE Atlantic Ocean): a new natural laboratory for ocean acidification studies
title_sort chemical characterization of the punta de fuencaliente co 2 -enriched system (la palma, ne atlantic ocean): a new natural laboratory for ocean acidification studies
publisher Copernicus Publications
publishDate 2021
url https://doi.org/10.5194/bg-18-1673-2021
https://doaj.org/article/0fb4feffcdd24d358d6027c4ed1d6786
genre Ocean acidification
genre_facet Ocean acidification
op_source Biogeosciences, Vol 18, Pp 1673-1687 (2021)
op_relation https://bg.copernicus.org/articles/18/1673/2021/bg-18-1673-2021.pdf
https://doaj.org/toc/1726-4170
https://doaj.org/toc/1726-4189
doi:10.5194/bg-18-1673-2021
1726-4170
1726-4189
https://doaj.org/article/0fb4feffcdd24d358d6027c4ed1d6786
op_doi https://doi.org/10.5194/bg-18-1673-2021
container_title Biogeosciences
container_volume 18
container_issue 5
container_start_page 1673
op_container_end_page 1687
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