The carbon sink of the Coral Sea, the world's second largest marginal sea, weakened during 2006–2018

Zhang, Siqi; Bai, Yan; He, Xianqiang; Yu, Shujie; Song, Zhenya; Gong, Fang; Zhu, Qiankun; Pan, Delu

doi:10.1016/j.scitotenv.2023.162219

Cited by 4 publications

(1 citation statement)

References 65 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Carbon cycling processes in coral atolls are influenced by various factors, including seasonal variations in the hydrographic environment, the composition of benthic communities, and the health of coral reefs (Gattuso et al, 1996;Zhao et al, 2016;Zhang et al, 2023). The benthic community of Zhongsha Atoll is predominantly composed of reef-building corals (Huang et al, 2023).…”

Section: Influence Of Coral Reef Distribution On Plankton Production ...mentioning

confidence: 99%

Planktonic carbon metabolism of an underwater coral atoll in the oligotrophic sea: a case study of Zhongsha Atoll, Central South China Sea

Xiang,

Zhong,

et al. 2023

Front. Mar. Sci.

View full text Add to dashboard Cite

Coral atolls are widely recognized as oases of remarkable biodiversity and productivity within the oligotrophic open ocean. However, considerable debate surrounds the net carbon metabolism of planktonic communities in oceanic coral atolls and their contribution to the overall carbon budget of the ocean. Zhongsha Atoll, situated in the central South China Sea, represents one of the largest submerged reef atolls globally. Despite its significance, the ecological environment and characteristics of community production and metabolism at Zhongsha Atoll have been scarcely studied, and it remains uncertain whether these features differ from those observed in barrier-type reefs. In this study, we examined the gross primary production (GPP), community respiration (CR), and net community production (NCP) of the planktonic community in Zhongsha Atoll and its surrounding waters from 22 June to 6 July 2020. We also analyzed the potential influences of their distribution patterns. Our findings revealed that CR did not vary significantly with depth and it was considerably higher than GPP. As a result, the waters at the euphotic depth of Zhongsha Atoll were found to be heterotrophic, with negative NCP. Additionally, the correlation analysis demonstrated a negative relationship between NCP and CR. The NCP values were -35.28 ± 26.73 and -53.18 ± 31.77 mg C m-3 d-1 for the surface and chlorophyll maximum (DCM) layers, respectively. The NCP for the upper water column was -3023 mg C m-2 d-1. The waters above the reef flat (FL) exhibited higher primary productivity, with GPP in the surface and DCM layer being 1.61 and 2.71 times greater, respectively, than in the surrounding oceanic regions. However, the FL displayed a greater level of heterotrophy due to its stronger CR. In conclusion, the carbon metabolism of the planktonic community in submerged Zhongsha Atoll acts as a source of atmospheric CO2, and the distribution of coral reefs considerably contributes to the efficiency of carbon cycling within the atoll.

show abstract

Section: Influence Of Coral Reef Distribution On Plankton Production ...mentioning

confidence: 99%

Planktonic carbon metabolism of an underwater coral atoll in the oligotrophic sea: a case study of Zhongsha Atoll, Central South China Sea

Xiang,

Zhong,

et al. 2023

Front. Mar. Sci.

View full text Add to dashboard Cite

show abstract

A novel biosensing strategy on the dynamic and on-site detection of Vibrio coralliilyticus eDNA for coral health warnings

Chen,

Bin,

Liu

et al. 2024

Bioelectrochemistry

View full text Add to dashboard Cite

Remotely sensed retrieval of air-sea carbon flux and acidification risk in Chinese Bohai Sea based on a semi-analytical mechanism model with hour-level GOCI image and ERA5 reanalysis data

Yu,

Liu,

et al. 2024

Journal of Cleaner Production

View full text Add to dashboard Cite

The carbon sink of the Coral Sea, the world's second largest marginal sea, weakened during 2006–2018

Cited by 4 publications

References 65 publications

Planktonic carbon metabolism of an underwater coral atoll in the oligotrophic sea: a case study of Zhongsha Atoll, Central South China Sea

Planktonic carbon metabolism of an underwater coral atoll in the oligotrophic sea: a case study of Zhongsha Atoll, Central South China Sea

A novel biosensing strategy on the dynamic and on-site detection of Vibrio coralliilyticus eDNA for coral health warnings

Remotely sensed retrieval of air-sea carbon flux and acidification risk in Chinese Bohai Sea based on a semi-analytical mechanism model with hour-level GOCI image and ERA5 reanalysis data

Contact Info

Product

Resources

About