Phytoplankton pigment patterns and community composition in the northern South China Sea during winter

Zhai, Hongchang; Ning, Xin; Tang, Xuexi; Hao, Qiang; Le, Fengfeng; Qiao, Jing

doi:10.1007/s00343-011-0111-x

Cited by 21 publications

(7 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…C a and C w are the concentrations of OVOCs in the atmosphere (around 10 m above sea level) and in the sea surface water (6 m depth), respectively. K H is the dimensionless, temperature-dependent Henry's law constant, which was described in Sander (1999) and which was modified for each OVOC by using empirically determined apparent partition coefficients for the different OVOCs from Zhou and Mopper (1990).…”

Section: Flux Calculationsmentioning

confidence: 99%

Oxygenated volatile organic carbon in the western Pacific convective center: ocean cycling, air–sea gas exchange and atmospheric transport

et al. 2017

View full text Add to dashboard Cite

Abstract. A suite of oxygenated volatile organic compounds (OVOCs – acetaldehyde, acetone, propanal, butanal and butanone) were measured concurrently in the surface water and atmosphere of the South China Sea and Sulu Sea in November 2011. A strong correlation was observed between all OVOC concentrations in the surface seawater along the entire cruise track, except for acetaldehyde, suggesting similar sources and sinks in the surface ocean. Additionally, several phytoplankton groups, such as haptophytes or pelagophytes, were also correlated to all OVOCs, indicating that phytoplankton may be an important source of marine OVOCs in the South China and Sulu seas. Humic- and protein-like fluorescent dissolved organic matter (FDOM) components seemed to be additional precursors for butanone and acetaldehyde. The measurement-inferred OVOC fluxes generally showed an uptake of atmospheric OVOCs by the ocean for all gases, except for butanal. A few important exceptions were found along the Borneo coast, where OVOC fluxes from the ocean to the atmosphere were inferred. The atmospheric OVOC mixing ratios over the northern coast of Borneo were relatively high compared with literature values, suggesting that this coastal region is a local hotspot for atmospheric OVOCs. The calculated amount of OVOCs entrained into the ocean seemed to be an important source of OVOCs to the surface ocean. When the fluxes were out of the ocean, marine OVOCs were found to be enough to control the locally measured OVOC distribution in the atmosphere. Based on our model calculations, at least 0.4 ppb of marine-derived acetone and butanone can reach the upper troposphere, where they may have an important influence on hydrogen oxide radical formation over the western Pacific Ocean.

show abstract

Section: Flux Calculationsmentioning

confidence: 99%

Oxygenated volatile organic carbon in the western Pacific convective center: ocean cycling, air–sea gas exchange and atmospheric transport

et al. 2017

View full text Add to dashboard Cite

show abstract

“…More recently, Hung and Gong (2010) used different Nitex screens (10, 50, 150 lm) to separate sinking particles in the northern South China Sea (SCS) where diatoms are the main phytoplankton group (Ning et al, 2004;Zhai et al, 2011). Hung and Gong (2010) found that POC and 234 Th in the 1-50 lm fraction contained the largest proportion of bulk POC (53-60%) and 234 Th (66-80%), respectively.…”

Section: Introductionmentioning

confidence: 98%

234Th in different size classes of sediment trap collected particles from the Northwestern Pacific Ocean

Hung

Gong

Santschi

2012

Geochimica et Cosmochimica Acta

View full text Add to dashboard Cite

“…A higher correlation between F. profunda and surface chlorophyll occurs at the basinal TJ-A (R 2 = 0.7071) site, with lower levels at both the relatively coastal TJ-E (R 2 = 0.3754) and TJ-G (R 2 = 0.5645) sites (Figure 7a). This is due to the Noëlaerhabdaceae coccolithophores being one of the productive phytoplankton groups, and they contribute more to the surface organic carbon production at a further distance from coastal regions, which is confirmed by sea water biomarker (Li et al, 2014) and phytoplankton pigment (Zhai et al, 2011) investigations in the SCS. Additionally, in other oceans, for example, coccolithophores contributed approximately 10-20% to the primary production in Iceland 10.1029/2019JG005070…”

Section: Implications For Paleoceanography and Future Climatementioning

confidence: 69%

Two Production Stages of Coccolithophores in Winter as Revealed by Sediment Traps in the Northern South China Sea

et al. 2019

View full text Add to dashboard Cite

Coccolithophores, originating in the Late Triassic, are one of the most successful marine calcifying algae living in modern oceans. Coccoliths are the calcareous fossil remnants left in marine sediments after coccolithophores die. These calcite scales record the conditions of the surface ocean (e.g., primary productivity, seawater temperature, and carbonate chemistry) and are expected to be a promising subject in paleoceanographic and paleoclimatic studies. Hence, a comprehensive understanding of the ecology and phenology of living coccolithophores, as well as their interactions with other plankton groups, is needed to develop better constraints on their uses in paleoenvironmental studies. Here we show modern coccolithophore production through the coccolith fluxes from sediment traps at a ~500‐m water depth from 2013 to 2015 in the northern South China Sea. In addition to the expected seasonality of the coccolithophore production that occurs during winter seasons due to the strong water mixing induced by monsoon winds, a two‐stage mode for the coccolithophore production is also recognized in relatively “coastal” waters. The first stage includes the production of Gephyrocapsa oceanica in December, when the macronutrient inventory is built, and the second stage describes the growth of Emiliania huxleyi in late February with the depletion of silicate nutrients. This two‐stage mode originates from subtle differences in the nutrient assimilation ability between the two species. In addition, coccolithophore production is significantly influenced by the decadal oceanic events (i.e., El Niño) in the northern South China Sea.

show abstract

Phytoplankton pigment patterns and community composition in the northern South China Sea during winter

Cited by 21 publications

References 21 publications

Oxygenated volatile organic carbon in the western Pacific convective center: ocean cycling, air–sea gas exchange and atmospheric transport

Oxygenated volatile organic carbon in the western Pacific convective center: ocean cycling, air–sea gas exchange and atmospheric transport

234Th in different size classes of sediment trap collected particles from the Northwestern Pacific Ocean

Two Production Stages of Coccolithophores in Winter as Revealed by Sediment Traps in the Northern South China Sea

Contact Info

Product

Resources

About