Millennial calcification trends in Porites corals: Resilient skeletal density and vulnerable linear extension in response to environmental change
Global coral reefs are currently facing widespread declines in calcification rates, a trend that underscores the need to understand variations between calcification in contemporary and ancient corals. This study investigates the changes in coral calcification over the last millennium by analyzing 21...
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ftchacadscgigcas:oai:ir.gig.ac.cn:344008/78506 2024-09-30T14:40:51+00:00 Millennial calcification trends in Porites corals: Resilient skeletal density and vulnerable linear extension in response to environmental change Deng, Guangchao Chen, Xuefei Kang, Huiling Zhao, Jian-xin Wei, Gangjian 2024-06-01 http://ir.gig.ac.cn/handle/344008/78506 https://doi.org/10.1016/j.gloplacha.2024.104456 英语 eng ELSEVIER GLOBAL AND PLANETARY CHANGE http://ir.gig.ac.cn/handle/344008/78506 doi:10.1016/j.gloplacha.2024.104456 Physical Geography Geology Porites lutea corals Linear extension rate Skeletal density Calcification rate Northern South China Sea Last millennium Geography Physical Geosciences Multidisciplinary SOUTH CHINA SEA GROWTH-RATES OCEAN ACIDIFICATION CLIMATE-CHANGE PARTIAL-PRESSURE REEFS TEMPERATURE RECORDS CO2 IMPACTS 期刊论文 2024 ftchacadscgigcas https://doi.org/10.1016/j.gloplacha.2024.104456 2024-09-16T14:26:10Z Global coral reefs are currently facing widespread declines in calcification rates, a trend that underscores the need to understand variations between calcification in contemporary and ancient corals. This study investigates the changes in coral calcification over the last millennium by analyzing 21 subfossil and 11 modern coral samples from a marginal reef in the northern South China Sea. Our results reveal that although coral skeletal density has remained relatively stable, significant differences are evident in linear extension rates between the Medieval Climate Anomaly (MCA, 900-1300 CE) and the Little Ice Age (LIA, 1550-1850 CE), as well as between the preand post-industrial periods. This finding suggests that inshore Porites corals have greater resilience in their skeletal density compared to linear extension rates when responding to environmental changes. Our analysis indicates that sea surface temperature (SST) is the primary environmental driver influencing coral calcification, with a positive correlation observed between SST and both modern coral linear extension and calcification rates. In contrast, factors such as seawater pH, salinity, and total solar irradiance appear to have minimal impact on coral skeletal growth. Therefore, the lower linear extension and calcification rates observed in the LIA corals, as compared to the MCA corals, are likely due to the cooler temperatures during the LIA. We also hypothesize that the extended period of cold SST from the LIA to the early 20th century may have led to the reduced linear extension and calcification rates in modern corals, with recent warming insufficient to facilitate a return to the optimal skeletal growth observed during the MCA. Report Ocean acidification Guangzhou Institute of Geochemistry: GIG OpenIR (Chinese Academy of Sciences) Global and Planetary Change 237 104456 |
institution |
Open Polar |
collection |
Guangzhou Institute of Geochemistry: GIG OpenIR (Chinese Academy of Sciences) |
op_collection_id |
ftchacadscgigcas |
language |
English |
topic |
Physical Geography Geology Porites lutea corals Linear extension rate Skeletal density Calcification rate Northern South China Sea Last millennium Geography Physical Geosciences Multidisciplinary SOUTH CHINA SEA GROWTH-RATES OCEAN ACIDIFICATION CLIMATE-CHANGE PARTIAL-PRESSURE REEFS TEMPERATURE RECORDS CO2 IMPACTS |
spellingShingle |
Physical Geography Geology Porites lutea corals Linear extension rate Skeletal density Calcification rate Northern South China Sea Last millennium Geography Physical Geosciences Multidisciplinary SOUTH CHINA SEA GROWTH-RATES OCEAN ACIDIFICATION CLIMATE-CHANGE PARTIAL-PRESSURE REEFS TEMPERATURE RECORDS CO2 IMPACTS Deng, Guangchao Chen, Xuefei Kang, Huiling Zhao, Jian-xin Wei, Gangjian Millennial calcification trends in Porites corals: Resilient skeletal density and vulnerable linear extension in response to environmental change |
topic_facet |
Physical Geography Geology Porites lutea corals Linear extension rate Skeletal density Calcification rate Northern South China Sea Last millennium Geography Physical Geosciences Multidisciplinary SOUTH CHINA SEA GROWTH-RATES OCEAN ACIDIFICATION CLIMATE-CHANGE PARTIAL-PRESSURE REEFS TEMPERATURE RECORDS CO2 IMPACTS |
description |
Global coral reefs are currently facing widespread declines in calcification rates, a trend that underscores the need to understand variations between calcification in contemporary and ancient corals. This study investigates the changes in coral calcification over the last millennium by analyzing 21 subfossil and 11 modern coral samples from a marginal reef in the northern South China Sea. Our results reveal that although coral skeletal density has remained relatively stable, significant differences are evident in linear extension rates between the Medieval Climate Anomaly (MCA, 900-1300 CE) and the Little Ice Age (LIA, 1550-1850 CE), as well as between the preand post-industrial periods. This finding suggests that inshore Porites corals have greater resilience in their skeletal density compared to linear extension rates when responding to environmental changes. Our analysis indicates that sea surface temperature (SST) is the primary environmental driver influencing coral calcification, with a positive correlation observed between SST and both modern coral linear extension and calcification rates. In contrast, factors such as seawater pH, salinity, and total solar irradiance appear to have minimal impact on coral skeletal growth. Therefore, the lower linear extension and calcification rates observed in the LIA corals, as compared to the MCA corals, are likely due to the cooler temperatures during the LIA. We also hypothesize that the extended period of cold SST from the LIA to the early 20th century may have led to the reduced linear extension and calcification rates in modern corals, with recent warming insufficient to facilitate a return to the optimal skeletal growth observed during the MCA. |
format |
Report |
author |
Deng, Guangchao Chen, Xuefei Kang, Huiling Zhao, Jian-xin Wei, Gangjian |
author_facet |
Deng, Guangchao Chen, Xuefei Kang, Huiling Zhao, Jian-xin Wei, Gangjian |
author_sort |
Deng, Guangchao |
title |
Millennial calcification trends in Porites corals: Resilient skeletal density and vulnerable linear extension in response to environmental change |
title_short |
Millennial calcification trends in Porites corals: Resilient skeletal density and vulnerable linear extension in response to environmental change |
title_full |
Millennial calcification trends in Porites corals: Resilient skeletal density and vulnerable linear extension in response to environmental change |
title_fullStr |
Millennial calcification trends in Porites corals: Resilient skeletal density and vulnerable linear extension in response to environmental change |
title_full_unstemmed |
Millennial calcification trends in Porites corals: Resilient skeletal density and vulnerable linear extension in response to environmental change |
title_sort |
millennial calcification trends in porites corals: resilient skeletal density and vulnerable linear extension in response to environmental change |
publisher |
ELSEVIER |
publishDate |
2024 |
url |
http://ir.gig.ac.cn/handle/344008/78506 https://doi.org/10.1016/j.gloplacha.2024.104456 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_relation |
GLOBAL AND PLANETARY CHANGE http://ir.gig.ac.cn/handle/344008/78506 doi:10.1016/j.gloplacha.2024.104456 |
op_doi |
https://doi.org/10.1016/j.gloplacha.2024.104456 |
container_title |
Global and Planetary Change |
container_volume |
237 |
container_start_page |
104456 |
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1811643321719717888 |