Biocalcification crisis in the continental shelf under ocean acidification
Ocean acidification (OA) is a persistent challenge for humans and is predicted to have deleterious effects on marine organisms, especially marine calcifiers such as coral and foraminifera. Benthic foraminifera is an important component of sediment in the continental shelf, while little is known abou...
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ftdoajarticles:oai:doaj.org/article:24f60ddace3549e7a06c673d9c3efd01 2023-11-12T04:23:41+01:00 Biocalcification crisis in the continental shelf under ocean acidification Shuaishuai Dong Yanli Lei Tiegang Li Yifei Cao Kuidong Xu 2023-11-01T00:00:00Z https://doi.org/10.1016/j.gsf.2023.101622 https://doaj.org/article/24f60ddace3549e7a06c673d9c3efd01 EN eng Elsevier http://www.sciencedirect.com/science/article/pii/S1674987123000890 https://doaj.org/toc/1674-9871 1674-9871 doi:10.1016/j.gsf.2023.101622 https://doaj.org/article/24f60ddace3549e7a06c673d9c3efd01 Geoscience Frontiers, Vol 14, Iss 6, Pp 101622- (2023) Benthic foraminifera pCO2 Ocean acidification Continental shelf Calcium carbonate deposit Yellow Sea Geology QE1-996.5 article 2023 ftdoajarticles https://doi.org/10.1016/j.gsf.2023.101622 2023-10-22T00:43:26Z Ocean acidification (OA) is a persistent challenge for humans and is predicted to have deleterious effects on marine organisms, especially marine calcifiers such as coral and foraminifera. Benthic foraminifera is an important component of sediment in the continental shelf, while little is known about the impact of ocean acidification on benthic foraminifera both at the community and individual level and associated calcium carbonate deposition. We conducted eight months continued culture experiment under the scenario of 400, 800, 1200 and 1600 ppm pCO2 gradients on living benthic foraminifera from four stations in the continental shelf of the West Pacific Ocean. Statistic results showed OA had a negative effect on the abundance of benthic foraminifera. In contrast, the diversity increased roughly under OA conditions implying OA might stimulate the emergence of rare species and promote community diversity to some extent. In addition, we confirmed that the offshore area wasn’t the refuge for benthic foraminifera while the nearshore one had more resistance to moderate acidification. Calcareous species Protelphidium tuberculatum was the dominant species occupying on average 75% in all treatments and its shell diameter, weight and thickness showed a decrease, indicating the decrease of calcification of benthic foraminifera. A relationship between the weight of P. tuberculatum and pCO2 (R2 = 0.96) was established. Based on the present work, calcareous benthic foraminifera deposited 8.57 × 104 t calcium carbonate per year and this might reduce by nearly half and 90% under 800 and 1200 ppm scenarios, which indicates a biocalcification crisis under ongoing OA. This work shows an analogy for palaeoceanic OA and also provides new insights into the sediment of calcium carbonate in the future. Article in Journal/Newspaper Ocean acidification Directory of Open Access Journals: DOAJ Articles Pacific Geoscience Frontiers 14 6 101622 |
institution |
Open Polar |
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Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Benthic foraminifera pCO2 Ocean acidification Continental shelf Calcium carbonate deposit Yellow Sea Geology QE1-996.5 |
spellingShingle |
Benthic foraminifera pCO2 Ocean acidification Continental shelf Calcium carbonate deposit Yellow Sea Geology QE1-996.5 Shuaishuai Dong Yanli Lei Tiegang Li Yifei Cao Kuidong Xu Biocalcification crisis in the continental shelf under ocean acidification |
topic_facet |
Benthic foraminifera pCO2 Ocean acidification Continental shelf Calcium carbonate deposit Yellow Sea Geology QE1-996.5 |
description |
Ocean acidification (OA) is a persistent challenge for humans and is predicted to have deleterious effects on marine organisms, especially marine calcifiers such as coral and foraminifera. Benthic foraminifera is an important component of sediment in the continental shelf, while little is known about the impact of ocean acidification on benthic foraminifera both at the community and individual level and associated calcium carbonate deposition. We conducted eight months continued culture experiment under the scenario of 400, 800, 1200 and 1600 ppm pCO2 gradients on living benthic foraminifera from four stations in the continental shelf of the West Pacific Ocean. Statistic results showed OA had a negative effect on the abundance of benthic foraminifera. In contrast, the diversity increased roughly under OA conditions implying OA might stimulate the emergence of rare species and promote community diversity to some extent. In addition, we confirmed that the offshore area wasn’t the refuge for benthic foraminifera while the nearshore one had more resistance to moderate acidification. Calcareous species Protelphidium tuberculatum was the dominant species occupying on average 75% in all treatments and its shell diameter, weight and thickness showed a decrease, indicating the decrease of calcification of benthic foraminifera. A relationship between the weight of P. tuberculatum and pCO2 (R2 = 0.96) was established. Based on the present work, calcareous benthic foraminifera deposited 8.57 × 104 t calcium carbonate per year and this might reduce by nearly half and 90% under 800 and 1200 ppm scenarios, which indicates a biocalcification crisis under ongoing OA. This work shows an analogy for palaeoceanic OA and also provides new insights into the sediment of calcium carbonate in the future. |
format |
Article in Journal/Newspaper |
author |
Shuaishuai Dong Yanli Lei Tiegang Li Yifei Cao Kuidong Xu |
author_facet |
Shuaishuai Dong Yanli Lei Tiegang Li Yifei Cao Kuidong Xu |
author_sort |
Shuaishuai Dong |
title |
Biocalcification crisis in the continental shelf under ocean acidification |
title_short |
Biocalcification crisis in the continental shelf under ocean acidification |
title_full |
Biocalcification crisis in the continental shelf under ocean acidification |
title_fullStr |
Biocalcification crisis in the continental shelf under ocean acidification |
title_full_unstemmed |
Biocalcification crisis in the continental shelf under ocean acidification |
title_sort |
biocalcification crisis in the continental shelf under ocean acidification |
publisher |
Elsevier |
publishDate |
2023 |
url |
https://doi.org/10.1016/j.gsf.2023.101622 https://doaj.org/article/24f60ddace3549e7a06c673d9c3efd01 |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
Geoscience Frontiers, Vol 14, Iss 6, Pp 101622- (2023) |
op_relation |
http://www.sciencedirect.com/science/article/pii/S1674987123000890 https://doaj.org/toc/1674-9871 1674-9871 doi:10.1016/j.gsf.2023.101622 https://doaj.org/article/24f60ddace3549e7a06c673d9c3efd01 |
op_doi |
https://doi.org/10.1016/j.gsf.2023.101622 |
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Geoscience Frontiers |
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14 |
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6 |
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101622 |
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