Species composition and abundance of crustose coralline algae and formation of Xinfeng algal reef in Northwestern Taiwan

© 2024 Phycological Society of America.

Bibliographische Detailangaben
Veröffentlicht in:Journal of phycology. - 1966. - (2024) vom: 15. Dez.
1. Verfasser: Lin, Showe-Mei (VerfasserIn)
Weitere Verfasser: Liu, Li-Chia, Shiao, Jen-Chieh, Huang, Chih-Chien, Tseng, Li-Chun, Lee, Hsin
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2024
Zugriff auf das übergeordnete Werk:Journal of phycology
Schlagworte:Journal Article Chamberlainium Dawsoniolithon Phymatolithon Xinfeng algal reef carbon‐14 dating reef‐forming coralline algae δ18O signatures
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520 |a The composition and abundance of crustose coralline algae (CCA) have been documented in the Xinfeng algal reef (XAR). Eight CCA species were identified, including four in Phymatolithon (P. margoundulatum, P. taiwanense, P. variabile, and Phymatolithon sp.) and four only identified to the genus level (Chamberlainium sp. and three Dawsoniolithon spp.). Chamberlainium sp. was the most abundant species, while the three species of Dawsoniolithon were rarely observed. The CCA coverage varied from 18% ± 15% to 27% ± 21% in spring seasons of 2021-2024, but there were no significant differences. Based on carbon-14 dating, the CCA sediments in the XAR were estimated to be 5850-5990 years old. These CCA sediments were primarily composed of two paleo-CCA species, resembling modern Chamberlainium sp. and Dawsoniolithon sp. 1. However, the modern species of Phymatolithon, which are widespread and abundant in the algal reefs of northwestern Taiwan, were not observed in the CCA sediments. It is unclear whether their absence was due to fragile thalli after their death or their lack of occurrence, and this requires further investigation. The paleoenvironmental data and biogenic sediment composition analysis suggests that the XAR started to develop ~6000 years ago when the sea surface temperature began to decrease and seawater turbidity increased due to rainfall. Additional CCA sediment samples from this algal reef are needed to fully understand the historical changes in the paleo-environments in the XAR 
650 4 |a Journal Article 
650 4 |a Chamberlainium 
650 4 |a Dawsoniolithon 
650 4 |a Phymatolithon 
650 4 |a Xinfeng algal reef 
650 4 |a carbon‐14 dating 
650 4 |a reef‐forming coralline algae 
650 4 |a δ18O signatures 
700 1 |a Liu, Li-Chia  |e verfasserin  |4 aut 
700 1 |a Shiao, Jen-Chieh  |e verfasserin  |4 aut 
700 1 |a Huang, Chih-Chien  |e verfasserin  |4 aut 
700 1 |a Tseng, Li-Chun  |e verfasserin  |4 aut 
700 1 |a Lee, Hsin  |e verfasserin  |4 aut 
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