globalchange  > 气候变化与战略
DOI: 10.3389/fmars.2020.00003
论文题名:
Contrasting Changes in Diel Variations of Net Community Calcification Support That Carbonate Dissolution Can Be More Sensitive to Ocean Acidification Than Coral Calcification
作者: Chou W.-C.; Liu P.-J.; Chen Y.-H.; Huang W.-J.
刊名: Frontiers in Marine Science
ISSN: 22967745
出版年: 2020
卷: 7
语种: 英语
英文关键词: calcification ; carbonate dissolution ; coral reef ; diel variation ; mesocosm ; ocean acidification
英文摘要: Previous studies have found that calcification in coral reefs is generally stronger during the day, whereas dissolution is prevalent at night. On the basis of these contrasting patterns, the diel variations of net community calcification (NCC) were monitored to examine the relative sensitivity of CaCO3 production (calcification) and dissolution in coral reefs to ocean acidification (OA), using two mesocosms that replicated a typical subtropical coral reef ecosystem in southern Taiwan. The results revealed that the daytime NCC remained unchanged, whereas the nighttime NCC decreased between the control (ambient) and treatment (OA) conditions, suggesting that carbonate dissolution could be more sensitive to OA than coral calcification. The average sensitivity of the integrated daily NCC to changes in the seawater saturation state (Ωa) was estimated to be a reduction of 54% in NCC per unit change in Ωa, which is consistent with the global average. In summary, our results support the prevailing anticipation that OA would lead to a reduction in the overall accretion of coral reef ecosystems. However, increased CaCO3 dissolution rather than decreased coral calcification could be the dominant driving force responsible for this OA-induced reduction in NCC. © Copyright © 2020 Chou, Liu, Chen and Huang.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/160039
Appears in Collections:气候变化与战略

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作者单位: Institute of Marine Environment and Ecology, National Taiwan Ocean University, Keelung City, Taiwan; Center of Excellence for the Oceans, National Taiwan Ocean University, Keelung City, Taiwan; Graduate Institute of Marine Biology, National Dong Hwa University, Pingtung, Taiwan; National Museum of Marine Biology and Aquarium, Pingtung, Taiwan; Department of Oceanography, National Sun Yat-sen University, Kaohsiung City, Taiwan

Recommended Citation:
Chou W.-C.,Liu P.-J.,Chen Y.-H.,et al. Contrasting Changes in Diel Variations of Net Community Calcification Support That Carbonate Dissolution Can Be More Sensitive to Ocean Acidification Than Coral Calcification[J]. Frontiers in Marine Science,2020-01-01,7
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