Distribution of reactive aluminum under the influence of mesoscale eddies in the western South China Sea

Liu, Jiaxing; Zhou, Linbin; Tan, Yehui; Wang, Qiong; Hu, Zi‐Min; Li, Jiajun; Jiang, Xin; Ke, Zhixin

doi:10.1007/s13131-017-1046-7

Cited by 11 publications

(7 citation statements)

References 45 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…An investigation of the subsurface CHL response to eddies is of great importance for a comprehensive understanding of the biogeochemical roles of eddies in regional ecosystems. Figure presents a ship‐based cruise section (at 110.5 ° E) that crossed the center of a cyclonic eddy in the south and an anticyclonic eddy in the north in late August 2013 (Liu et al, ). The location of the cyclonic (anticyclonic) eddy is outlined by the negative (positive) SLA and the counterclockwise (clockwise) rotation of surface current anomalies.…”

Section: Resultsmentioning

confidence: 99%

“…Hu et al () reported a cold eddy that generates significant upward domes of isotherms, leading to 2–3 °C of surface cooling and up to 8 °C of subsurface temperature decrease. These vertical movements of warm/cold water are accompanied by vertical transport of biogeochemical substances, which are expected to modulate local ecosystems (Hu et al, ; Lin et al, ; Liu et al, ; Lu et al, ; Yan et al, ). As proposed by Lu et al (), high WSCS primary productivity is spatiotemporally consistent with high kinetic energy, which is associated with intense eddy activity (Chen et al, ; Cheng & Qi, ).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Eddy‐Induced Chlorophyll Anomalies in the Western South China Sea

Zhan

et al. 2019

JGR Oceans

Self Cite

View full text Add to dashboard Cite

The western South China Sea (WSCS) exhibits intense mesoscale eddy activity, especially in summer. However, the influence of the eddies on regional ecosystems is not well understood. By analyzing historical in situ observations, satellite-derived near-surface chlorophyll (CHL) data and eddy data, we investigated the composite response of CHL to eddies in the WSCS. The results show that eddies decrease CHL in the WSCS and that nearly half of this decrease is attributed to the activity of anticyclonic eddies during summer when they are much more energetic than cyclonic eddies. A comparison between local and nonlocal eddies suggests that the CHL response to the eddies is dominated by local dynamics rather than being trapped and transported from neighboring regions. In situ observations provide evidence that intense convergence and downwelling in anticyclonic eddies deepen the mixed layer depth and subsurface CHL maximum depth. The decreased nutrients in the euphotic layer inhibits the growth of phytoplankton, resulting in a weakened subsurface CHL maximum (by 54%) and decreased CHL in the entire euphotic layer (by 41% for the upper 100 m). Considering the greater number and area of anticyclonic eddies compared with cyclonic eddies, eddy activity might cause an upper ocean CHL decrease of~7% in the WSCS in summer. This study demonstrated that the response of CHL to eddies in the WSCS differs in both spatial distribution and seasonal variation from those in other subregions of the SCS, emphasizing the importance of considering regional variability in eddies and large-scale environments when evaluating the biogeochemical influences of eddies.Plain Language Summary Mesoscale eddies, both local and nonlocal, enrich the circulation system in the western South China Sea (WSCS), giving rise to complex regional biogeochemical environments. To gain insights into the role of eddies in regional ecosystems, we investigated the composite near-surface chlorophyll (CHL) anomalies within thousands of eddies in the WSCS. The results show a noticeable near-surface CHL decrease induced by the eddies, and nearly half of this decrease is attributed to the activity of anticyclonic eddies in summer. During this period, intense downwelling in anticyclonic eddies results in much deeper and weaker subsurface CHL maximums than those in cyclonic eddies, as well as the backgrounds. This study demonstrates that the CHL response to eddies in the WSCS differs in both spatial distribution and seasonal variation from those in the northern and eastern SCS, emphasizing the importance of considering regional variability in eddies and large-scale environments when evaluating the biogeochemical influences of eddies.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Eddy‐Induced Chlorophyll Anomalies in the Western South China Sea

Zhan

et al. 2019

JGR Oceans

Self Cite

View full text Add to dashboard Cite

show abstract

“…1). Over the last several decades, a number of studies have reported that marine plankton, especially marine phytoplankton such as diatoms, could remove or scavenge dissolved Al in seawater through adsorption on their surface or/and absorption into their cells (Liu et al 2017b;Moran and Moore 1988;Ren et al 2011).…”

Section: Accumulation and Uptake Of Al By Marine Organismsmentioning

confidence: 99%

“…Many studies focus on the scavenging effects of marine organisms on the distribution of Al in seawater, as marine organisms, especially microbes, can adsorb Al on their surface or absorb it into cells, thus decreasing dissolved Al concentrations in seawater (e.g., Liu et al 2017b; Moran and Moore 1988;Ren et al 2011). In contrast, the effects of Al on marine organisms are usually unnoticed.…”

Section: Introductionmentioning

confidence: 99%

Aluminum effects on marine phytoplankton: implications for a revised Iron Hypothesis (Iron–Aluminum Hypothesis)

et al. 2018

Self Cite

View full text Add to dashboard Cite

In contrast to substantial studies and established knowledge of aluminum (Al) effects 2 (mainly toxicity) on freshwater organisms and terrestrial plants, and even on human 3 health, only a few studies of Al effects on marine organisms have been reported, and our 4 understanding of the role of Al in marine biogeochemistry is limited. In this paper, we 5 the role of Al in the stimulation of phytoplankton growth and carbon sequestration in the 1 ocean depths. 2

show abstract

“…Many technologies can be developed to monitor and detect the presence of chlorophyll-a in the sea (Liu et al, 2017;Nneti Onyia et al, and Sala et al, 2018), one of which is a remote sensing technology that uses sensor technology and with multispectral capabilities (Cole et al, 2018;Grobler et al, 2013;van der Meer et al, 2012), multitemporal and high spatial resolution (Miura et al, 2008;Petitcolin & Vermote, 2002), the selection of satellite imagery as a vehicle for detecting water quality is indispensable.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Variance and Correlation Study of Chlorophyll-a in North and South Coast of Lombok Island Using Aqua MODIS Image Data

Wibisana

Zainab

Kamandang

et al. 2020

Aceh Int. J. Sci. Technol

View full text Add to dashboard Cite

Chlorophyll-a mapping is widely used in the coastal environment. The mapping results can be utilized as guidance for fishing activities. The presence of chlorophyll-a in phytoplankton is much investigated concerning the existence of fish as a source of livelihood for fishermen around the globe. One method extensively developed is the use of satellite imagery to map the chlorophyll-content in the coastal region from a small area to a global scale, such as Aqua MODIS image data. This study aims to monitor the distribution of chlorophyll-a on the north coast and south coast of Lombok island. Analysis of variance and parametric statistical tests with t-distribution was utilized to examine the correlation between the two types of chlorophyll-a distribution of the coast area, Lombok Island. The result shows that the distribution of chlorophyll-a concentrations on the north coast and the south of the coast is not the same abundance; the south coast of Lombok island has smaller variances, with the concentration distribution is relatively the same. It differs from the north part; the distribution shows less diversity. This result indicates that a reasonably wide interval wherein some coordinates has a relatively diffuse chlorophyll-a concentration with a sufficiently high distribution level. Analysis of variance result also shows that both the north and south coasts have different fertility levels for their coastal waters, which are characterized by the growth rate of chlorophyll-a on the surface water along the coastal region examined

show abstract

Distribution of reactive aluminum under the influence of mesoscale eddies in the western South China Sea

Cited by 11 publications

References 45 publications

Eddy‐Induced Chlorophyll Anomalies in the Western South China Sea

Eddy‐Induced Chlorophyll Anomalies in the Western South China Sea

Aluminum effects on marine phytoplankton: implications for a revised Iron Hypothesis (Iron–Aluminum Hypothesis)

Analysis of Variance and Correlation Study of Chlorophyll-a in North and South Coast of Lombok Island Using Aqua MODIS Image Data

Contact Info

Product

Resources

About