Ocean acidification enhances primary productivity and nocturnal carbonate dissolution in intertidal rock pools
Human CO 2 emissions are modifying ocean carbonate chemistry, causing ocean acidification and likely already impacting marine ecosystems. In particular, there is concern that coastal, benthic calcifying organisms will be negatively affected by ocean acidification, a hypothesis largely supported by l...
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ftdoajarticles:oai:doaj.org/article:5bef4ada4794483b928bdeacff5f6423 2023-11-12T04:23:38+01:00 Ocean acidification enhances primary productivity and nocturnal carbonate dissolution in intertidal rock pools N. Dorey S. Martin L. Kwiatkowski 2023-10-01T00:00:00Z https://doi.org/10.5194/bg-20-4289-2023 https://doaj.org/article/5bef4ada4794483b928bdeacff5f6423 EN eng Copernicus Publications https://bg.copernicus.org/articles/20/4289/2023/bg-20-4289-2023.pdf https://doaj.org/toc/1726-4170 https://doaj.org/toc/1726-4189 doi:10.5194/bg-20-4289-2023 1726-4170 1726-4189 https://doaj.org/article/5bef4ada4794483b928bdeacff5f6423 Biogeosciences, Vol 20, Pp 4289-4306 (2023) Ecology QH540-549.5 Life QH501-531 Geology QE1-996.5 article 2023 ftdoajarticles https://doi.org/10.5194/bg-20-4289-2023 2023-10-22T00:36:06Z Human CO 2 emissions are modifying ocean carbonate chemistry, causing ocean acidification and likely already impacting marine ecosystems. In particular, there is concern that coastal, benthic calcifying organisms will be negatively affected by ocean acidification, a hypothesis largely supported by laboratory studies. The inter-relationships between carbonate chemistry and marine calcifying communities in situ are complex, and natural mesocosms such as tidal pools can provide useful community-level insights. In this study, we manipulated the carbonate chemistry of intertidal pools to investigate the influence of future ocean acidification on net community production (NCP) and calcification (NCC) at emersion. Adding CO 2 at the start of the tidal emersion to simulate future acidification ( + 1500 µ atm p CO 2 , target pH 7.5) modified net production and calcification rates in the pools. By day, pools were fertilized by the increased CO 2 ( + 20 % increase in NCP, from 10 to 12 mmol O 2 m −2 h −1 ), while there was no measurable impact on NCC. During the night, pools experienced net community dissolution (NCC < 0), even under present-day conditions, when waters were supersaturated with regard to aragonite. Adding CO 2 to the pools increased nocturnal dissolution rates by 40 % (from − 0.7 to − 1.0 mmol CaCO 3 m −2 h −1 ) with no consistent impact on nocturnal community respiration. Our results suggest that ocean acidification is likely to alter temperate intertidal community metabolism on sub-daily timescales, enhancing both diurnal community production and nocturnal calcium carbonate dissolution. Article in Journal/Newspaper Ocean acidification Directory of Open Access Journals: DOAJ Articles Biogeosciences 20 20 4289 4306 |
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Open Polar |
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Directory of Open Access Journals: DOAJ Articles |
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language |
English |
topic |
Ecology QH540-549.5 Life QH501-531 Geology QE1-996.5 |
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Ecology QH540-549.5 Life QH501-531 Geology QE1-996.5 N. Dorey S. Martin L. Kwiatkowski Ocean acidification enhances primary productivity and nocturnal carbonate dissolution in intertidal rock pools |
topic_facet |
Ecology QH540-549.5 Life QH501-531 Geology QE1-996.5 |
description |
Human CO 2 emissions are modifying ocean carbonate chemistry, causing ocean acidification and likely already impacting marine ecosystems. In particular, there is concern that coastal, benthic calcifying organisms will be negatively affected by ocean acidification, a hypothesis largely supported by laboratory studies. The inter-relationships between carbonate chemistry and marine calcifying communities in situ are complex, and natural mesocosms such as tidal pools can provide useful community-level insights. In this study, we manipulated the carbonate chemistry of intertidal pools to investigate the influence of future ocean acidification on net community production (NCP) and calcification (NCC) at emersion. Adding CO 2 at the start of the tidal emersion to simulate future acidification ( + 1500 µ atm p CO 2 , target pH 7.5) modified net production and calcification rates in the pools. By day, pools were fertilized by the increased CO 2 ( + 20 % increase in NCP, from 10 to 12 mmol O 2 m −2 h −1 ), while there was no measurable impact on NCC. During the night, pools experienced net community dissolution (NCC < 0), even under present-day conditions, when waters were supersaturated with regard to aragonite. Adding CO 2 to the pools increased nocturnal dissolution rates by 40 % (from − 0.7 to − 1.0 mmol CaCO 3 m −2 h −1 ) with no consistent impact on nocturnal community respiration. Our results suggest that ocean acidification is likely to alter temperate intertidal community metabolism on sub-daily timescales, enhancing both diurnal community production and nocturnal calcium carbonate dissolution. |
format |
Article in Journal/Newspaper |
author |
N. Dorey S. Martin L. Kwiatkowski |
author_facet |
N. Dorey S. Martin L. Kwiatkowski |
author_sort |
N. Dorey |
title |
Ocean acidification enhances primary productivity and nocturnal carbonate dissolution in intertidal rock pools |
title_short |
Ocean acidification enhances primary productivity and nocturnal carbonate dissolution in intertidal rock pools |
title_full |
Ocean acidification enhances primary productivity and nocturnal carbonate dissolution in intertidal rock pools |
title_fullStr |
Ocean acidification enhances primary productivity and nocturnal carbonate dissolution in intertidal rock pools |
title_full_unstemmed |
Ocean acidification enhances primary productivity and nocturnal carbonate dissolution in intertidal rock pools |
title_sort |
ocean acidification enhances primary productivity and nocturnal carbonate dissolution in intertidal rock pools |
publisher |
Copernicus Publications |
publishDate |
2023 |
url |
https://doi.org/10.5194/bg-20-4289-2023 https://doaj.org/article/5bef4ada4794483b928bdeacff5f6423 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
Biogeosciences, Vol 20, Pp 4289-4306 (2023) |
op_relation |
https://bg.copernicus.org/articles/20/4289/2023/bg-20-4289-2023.pdf https://doaj.org/toc/1726-4170 https://doaj.org/toc/1726-4189 doi:10.5194/bg-20-4289-2023 1726-4170 1726-4189 https://doaj.org/article/5bef4ada4794483b928bdeacff5f6423 |
op_doi |
https://doi.org/10.5194/bg-20-4289-2023 |
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Biogeosciences |
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20 |
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20 |
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4289 |
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4306 |
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