Chen-Tung Arthur Chen

Chen-Tung Arthur Chen
National Sun Yat-sen University | NSYSU · Department of Oceanography

PhD

About

459
Publications
147,602
Reads
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18,223
Citations
Citations since 2017
115 Research Items
8401 Citations
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201720182019202020212022202305001,0001,500
201720182019202020212022202305001,0001,500
Introduction
Prof. Chen has been a Professor of the National Sun Yat-sen Univ., Taiwan, since 1985. He has sat on numerous international committees, including the International Geoshpere-Bioshpere Programme (vice chair, 2009-2015), the IGBP/IHDP/WCRP/DIVERSITAS GCP, MAIRS, SCOR and WOCE. He also served as one of the executives of the JGOFS SSC between 1992–1995. Prof. Chen's specialty is on the nutrients and carbon cycle in the oceans, ocean acidification (including hydrothermal systems), global change (including paleoclimates) and sediment heavy metals. His recent work is across disciplines toward integrated Earth System science on the regional to global scales. Besides having 370 of his own scientific papers published, he was awarded the highly-coveted 5M¥ Biwako Prize for Ecology from Japan in 1997.
Additional affiliations
June 2010 - present
Second Institute of Oceanography MNR
Position
  • Sea-Star visiting chair professor
June 2008 - August 2014
Zhejiang University
Position
  • Qiu-shi Chair professor
June 2007 - August 2011
Xiamen University
Position
  • Visiting chair professor

Publications

Publications (459)
Article
Full-text available
Like other high-latitude seas, the subpolar Bering and Okhotsk Seas in the northernmost Pacific Ocean changed rapidly from 1998 to 2018. The sea surface temperature (SST) increased by 0.62 and 0.41 °C/decade, respectively, much higher than the global rate of 0.108 °C/decade from 2000 until 2015. Despite this rapid warming, the chlorophyll content d...
Article
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The studies of iron (Fe), copper (Cu), and zinc (Zn) isotopic compositions in seafloor andesites are helpful in understanding the metal stable isotope fractionation during magma evolution. Here, the Fe, Cu, and Zn isotopic compositions of andesites from the Kueishantao hydrothermal field (KHF) off northeastern Taiwan, west Pacific, have been studie...
Article
Full-text available
The stable carbon isotopic composition of marine particulate organic matter (δ ¹³ C POM ) varies with source and environmental conditions. Dissolved carbon dioxide (CO 2 ) concentration is thought to influence δ ¹³ C POM more than temperature, but this relationship is poorly constrained in marginal seas. Here we present δ ¹³ C POM , hydrographic an...
Article
Full-text available
Background Geothermal systems have contributed greatly to both our understanding of the functions of extreme life and the evolutionary history of life itself. Shallow-sea hydrothermal systems are ecological intermediates of deep-sea systems and terrestrial springs, harboring unique and complexed ecosystems, which are well-lit and present physicoche...
Preprint
Full-text available
The shallow-water hydrothermal vents (SVs) located off Kueishan (KS) Islet, Taiwan, are one of the most intensively studied vent systems. Here, two distinct vent types were identified as white vents (WVs) and yellow vents (YVs), based on the color, physical and chemical characteristics of vent plumes. The endemic vent crabs (Xenograpsus testudinatu...
Article
The Fukushima accident released short-lived Cs-134 and longer-lived Cs-137 to the ocean. The amount, although substantial, is much less than that produced during the atomic bomb tests 60 years ago. But, the latter has received little attention. Here we found only Cs-137 in waters near the origin of the Kuroshio. The speed of the Kuroshio current ge...
Article
In this study, surface sediments along the mainstream of the Kapuas River were determined for sedimentary phosphorus (P) species, which include exchangeable-P (Ex-P), iron-bound P (Fe-P), apatite P (Ca-P), detrital P (De-P), and organic P (OP). The objective of this study was to determine the dynamics of sedimentary P species in the world’s longest...
Article
Full-text available
Strontium (Sr), hydrogen (H) and oxygen (O) in vent fluids are important for understanding the water–rock interaction and hydrothermal flux in hydrothermal systems. We have analyzed the Sr, H and O isotopic compositions of seawater, vent fluid and hydrothermal plume samples in the Kueishantao hydrothermal field, as well as their calcium (Ca), total...
Article
Full-text available
Antibiotic resistance genes (ARGs) became an emerging contaminant, and were found to accumulate in natural and man-made environments. A comprehensive understanding of the diversity and abundance of ARGs in pristine environments is critical for defining the baseline levels of environmental ARGs. However, there is limited information available on the...
Article
Full-text available
Hydrothermal vents are one of the important sources of major or trace elements in the ocean. The elemental fluxes, however, may be dynamic due to coastal processes and hydrothermal plumes, especially in shallow-water hydrothermal vents. We collected water samples by using the trace-metal clean technique inside and outside two shallow-water hydrothe...
Article
Full-text available
Effective data management plays a key role in oceanographic research as cruise-based data, collected from different laboratories and expeditions, are commonly compiled to investigate regional to global oceanographic processes. Here we describe new and updated best practice data standards for discrete chemical oceanographic observations, specificall...
Article
The precipitation and dissolution processes of CaCO3 are essential to the marine carbon cycle and are relevant to climate research. Nevertheless, one of the nagging questions is why the precipitation of CaCO3 rarely occurs without the help of biological activity even in the surface seawater, where the calcite saturation state (Ω, expressed as the r...
Article
The chemical and isotopic characteristics of calcium (Ca) in subduction zones are closely related to the budget of Ca and carbon cycles. Here we investigate the ultra-high Ca concentrations that characterize the hydrothermal fluids discharged from two types of vents, named the Zhudanqu brine vent (ZDQ) and the Huwaichi vapor spring (HWC), in the Lu...
Article
Seven cruises were carried out in a bay scallop (Argopecten irradians) farming area and its surrounding waters, North Yellow Sea, from March to November 2017 to study the dynamics of the carbonate system and its controlling factors. Results indicated that the studied parameters were highly variability over a range of spatiotemporal scales, comprehe...
Article
Full-text available
The release of anthropogenic radiocesium to the North Pacific Ocean (NPO) has occurred in the past 60 years. Factors controlling 137Cs (half-life, 30.2 year) and 134Cs (half-life, 2.06 year) activity concentrations in the Kuroshio east of Taiwan and the Taiwan Strait (latitude 20° N–27° N, longitude 116° E–123° E) remain unclear. This study collect...
Article
Full-text available
Small rivers are complex ecosystems facing threats from human activities and climate change. Therefore, studying the sediment and water chemistry of several streams in the East Sepik Province of Papua New Guinea will enhance our understanding of the characteristics of remote aquatic systems. We found high total organic carbon (OC) and vanillic acid...
Article
Full-text available
Submarine groundwater discharge (SGD) is an important source of nutrients in many coastal regions, yet little information is available on its carbonate chemistry and controlling factors. This study examined the processes and factors controlling the hydrogeochemistry and acidic property of the groundwaters and SGD waters of two isolated coral island...
Article
Full-text available
A portion of the charcoal and soot produced due to wildfires and combustion of fossil fuels on land enters the atmosphere and aquatic systems as black carbon (BC). Much of the airborne BC has a diameter of a few nanometers to tens of micrometers. This particulate matter (PM), especially around or smaller than 1um (PM1), can travel for thousands of...
Article
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This paper presents data on carbon and nitrogen stable isotopes in benthos from shallow-water hydrothermal vents (SV) and nearby non-vent rocky reefs (NV) located in northeastern Taiwan, which is related to the article “Isotopic niche differentiation in benthic consumers from shallow-water hydrothermal vents and nearby non-vent rocky reefs in north...
Article
Aerobic oxidation of short-chain alkanes was observed in gas samples from the Lutao intertidal hydrothermal vents in Taiwan, during storage at 20 °C for up to 29 months without adding bacterial strains and replenishing substrates. The carbon isotope fractionation factors (εC) of methane (C1), ethane (C2), and propane (C3), were calculated using the...
Article
Full-text available
The basic idea of the heralded microbial carbon pump (MCP) was that any recalcitrant dissolved organic matter (RDOM) that is not microbially degraded for extended periods effectively stores carbon in the oceans. This store, however, is only 2% of the dissolved inorganic carbon (DIC) pool. Further, the pumping efficiency of the DIC pool is 400-600 t...
Article
Full-text available
Based on the International Convention for the Control and Management of Ships’ Ballast Water and Sediments (the Ballast Water Management Convention, or BWM Convention) of the International Maritime Organization, from 8 September 2017, all ships must have an approved Ballast Water Management Treatment System (BWTS) to prevent the invasion of alien s...
Article
In this article dissolved oxygen results of research cruises through the Persian Gulf during 2018–2019 are discussed. The results showed that summer to autumn hypoxia occurred mainly at depths ≥ 50 m to the bottom. This seasonal hypoxia started in late summer reaching its greatest severity in mid-autumn with an area of 50,000 km² in the Persian Gul...
Article
Full-text available
The United States Department of Energy (DOE)’s Ocean Margins Program (OMP) cruise EN279 in March 1996 provides an important baseline for assessing long-term changes in the carbon cycle and biogeochemistry in the Mid-Atlantic Bight (MAB) as climate and anthropogenic changes have been substantial in this region over the past two decades. The distribu...
Article
Shallow-water hydrothermal vents (SVs) off Kueishan (KS) Islet are located along the northeastern coast of Taiwan. Although the trophic relationships of the sublittoral (15 – 30 m) and upper bathyal (200 – 300 m) vents in this region have been investigated, a comparison of SVs and adjacent non-vent ecosystems has not been undertaken. We compared th...
Article
Terrestrial sediment supply and its composition, aquatic productivity and coastal hydrodynamics together control the nature of organic matter (OM) that buried in ocean margins. Distinguishing their individual roles in river-dominated continental margins is challenging, but crucial for understanding (i) the regional carbon cycle in modern times and...
Article
Full-text available
The Kuroshio—literally “the Black Stream”—is the most substantial current in the Pacific Ocean. It was called the Black Stream because this oligotrophic current is so nutrient-poor in its euphotic zone that the water appears black without the influence of phytoplankton and the associated, often colored dissolved organic matter. Yet, below the eupho...
Article
Full-text available
The La Niña of 2007/2008 was particularly strong, so was the southward flow of the cold, nutrient-rich Changjiang (Yangtze River) Diluted Water (CDW) when the winter monsoon started to blow in the fall. Here we use shipboard data in 2008 in two transects, one in the southwestern East China Sea and one in the southern Taiwan Strait, to show that as...
Article
Full-text available
A hydrothermal vent system is one of the most unique marine environments on Earth. The cycling hydrothermal fluid hosts favorable conditions for unique life forms and novel mineralization mechanisms, which have attracted the interests of researchers in fields of biological, chemical and geological studies. Shallow-water hydrothermal vents located i...
Article
In situ field investigations coupled with laboratory incubations were employed to explore the surface sedimentary phosphorus (P) cycle in a mariculture area adjacent to the Yangma Island suffering from summer hypoxia in the North Yellow Sea. Five forms of P were fractionated, namely exchangeable P (Ex-P), iron-bound P (FeP), authigenic apatite (CaP...
Article
Full-text available
Since half a century ago, the number and area of dead zones (dissolved oxygen (DO) < 2 mg L −1 or 30% saturation) in the coastal oceans has increased dramatically. As widely recognized, the increased terrestrial nutrient and organic matter inputs are the two main factors causing the eutrophication of many coastal oceans. Here we show with decadal o...
Article
Large eutrophic river plumes can lead to hypoxic near-bottom water during summer. However, how the carbonate system in this stratified water column varies at a daily to weekly scale is still unclear. At the end of the first severe El Niño Southern Oscillation event in the 21st century during 2015/2016, high temperature, high salinity water was obse...
Chapter
Full-text available
The Kuroshio is the most significant current in the western North Pacific Ocean and affects a wide area. This work shows that the intrusion of the oligotrophic upper-layer West Philippine Sea seawater into the South China Sea (SCS) as the branch of Kuroshio reduced the productivity and hence the fluxes of sinking particles in the SCS between 2013 a...
Chapter
The Okhotsk Sea is located in a subarctic zone with characteristics such as ice cover in winter. Like other high-latitude seas, the Okhotsk Sea is undergoing rapid changes. Notably, its sea surface temperature (SST) increased by about 4.5 °C/century between 1998 and 2016, exceeding the reported rate of increase of 1.3 °C/century between 1982 and 20...
Chapter
The tropical/subtropical South China Sea (SCS) is the largest marginal sea in the world. Like other warm bodies of water, its sea surface temperature (SST) is rising, albeit more slowly (0.012 °C/yr between 1998 and 2016) than that of cold-water regions at high latitudes. The chlorophyll concentration increased at 0.0012 μg/L/yr during that period,...
Chapter
The subarctic Bering Sea is the northernmost marginal sea in the Asia-Pacific region and, like other seas at high latitudes, it is changing rapidly. One of the most notable changes is the sea surface temperature (SST), which increased by approximately 5.5 °C/century (p = 0.14) from 1998 to 2016—a much higher rate than the reported global rate of 1....
Article
Full-text available
Syntheses of carbonate chemistry spatial patterns are important for predicting ocean acidification impacts, but are lacking in coastal oceans. Here, we show that along the North American Atlantic and Gulf coasts the meridional distributions of dissolved inorganic carbon (DIC) and carbonate mineral saturation state (Ω) are controlled by partial equi...
Article
Full-text available
The environmental characteristics of colloidal toxic trace metals Cd, Cu and Pb in riverine and estuarine waters collected from two urban rivers of Yantai City in eastern China, the Guangdang and Xin'an Rivers, were investigated using a modified centrifugal ultrafiltration (CUF) method in conjunction with acid extraction and inductively coupled pla...
Article
Full-text available
The Taiwan Strait (TS) connects two of the largest marginal seas in the world, namely the East China Sea (ECS) and the South China Sea (SCS). When the NE monsoon prevails, the fresh, nutrient-rich but P-limited China Coastal Current (CCC) flows southward. Yet, part of the CCC turns eastward after entering the TS and then turns back toward the ECS....
Article
Abiogenic hydrocarbons are fundamentally important for understanding the deep microbial communities and the origin of life. The generation of abiogenic hydrocarbons was proposed to be limited to ultramafic-hosted hydrothermal systems, fueled by the serpentinization product H2. Here, we present the discharge of short-chain alkanes from an andesitic...
Article
When fine particulates such as those with a diameter of approximate 1 μm (particulate matter, PM1) are released from fossil fuel combustion into the air, they warm the atmosphere and contribute to millions of premature death in humans each year. Considerable quantities of PM1 eventually enter the oceans as suspended particulates, yet subsequent rem...
Article
The Lutao hydrothermal field is an intertidal arc-volcanic system located offshore southeast Taiwan, hosting a Zhudanqu (ZDQ) vent and a Huwaichi (HWC) spring with strongly contrasting fluid chemistry. Low Mg, moderately enriched Cl, and H⁺ with respect to seawater indicate that the ZDQ endmember was derived from the brine phase that was formed dur...
Article
Phytoplankton response to interannual climate variability has an important regulatory effect on the regional marine ecological environment and carbon cycle. In this study, we focused on the phytoplankton response in the upwelling region of the Sulu Ridge to the El Niño-Southern Oscillation (ENSO) based on monthly remote sensing chlorophyll-a concen...
Article
This research characterizes the temporal and spatial variability of the seawater carbonate chemistry on the near-shore waters of the northern Persian Gulf and Makran Sea. In general, normalized total alkalinity (nAT) showed a westward decrease along the coasts of Makran Sea and the Persian Gulf. Intertidal seawater was always supersaturated in term...
Book
This book discusses temporal changes in six Asia-Pacific marginal seas and two west boundary currents in the Northwest Pacific. Covering time scales varying from years to decades, it provides a comprehensive review of the long-term changes in various physical variables, including sea level, sea surface temperature, water mass index, current and tra...
Article
The particulate organic matter (POM) of shallow-water hydrothermal fields has been studied in the context of food web reconstruction, but the processes governing its biogeochemistry and dynamics are poorly explored. Here, we investigate the POM in the Kueishantao hydrothermal field using chemical and hydrodynamic approaches. The depletion of total...
Article
Full-text available
Compared to rivers in Europe and North America, Chinese rivers that discharge into oceans have different organic carbon (OC) transport characteristics. Out of the top 25 largest rivers worldwide, three (Changjiang, Huanghe, and Zhujiang rivers) are located in China, along with numerous small rivers. Thus, synthesized estimates of total riverine OC...
Article
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The ocean is the most important subsystem of the Earth’s climate system and functions as its heart, regulating the energy distribution of the planet [...]
Article
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We investigate suspended particles collected from the upper mixed layer in the inner shelf of the southern East China Sea during autumn 2013 for carbon and nitrogen (POC and PN) contents and their isotope compositions (δ13C and δ15N) along with hydrographic parameters to understand the sources and dynamics of particulate organic matter (POM) in the...
Article
Full-text available
In this study, two sediment cores (C1 and C2) were collected from the Andong salt marsh southwest of Hangzhou Bay and analysed to determine their different sedimentary phosphorus (P) forms. The changes in the sedimentary P forms over the past 30 years and the implication of these changes on environmental risks were determined. The low mean total P...
Article
Full-text available
We analyzed sulfur isotopes, trace elements and chalcophile elements (Se, Te, As, Sb, and Hg) in the native sulfur matrix from the Kueishantao hydrothermal system and conducted a systematic micro-analytical investigation. The sulfur matrix lacked all measured metals (e.g., Fe, Cu) and rare earth elements (REEs) while being significantly enriched in...
Article
Full-text available
The Taiwan Strait (TS) directly connects two of the richest fishing grounds in the world - the East China Sea (ECS) and the South China Sea (SCS). Carbon and nutrient supplies are essential for primary production and the Yangtze River is an important source for the ECS. However the ECS is severely P-limited. The TS transports an order of magnitude...
Article
As the largest Asian river and fourth world's largest river by water flow, the Changjiang River transports a considerable amount of terrigenous particulate organic carbon (POC) into ocean, which has experienced significant pressure from human activities. We conducted monthly sampling (from May 2015 to May 2016) at Datong, the most downstream non-ti...
Article
Rivers link land and ocean ecosystems, the two largest active carbon reservoirs in the world, and transport tremendous amounts of particulate organic carbon (POC) into marginal seas annually. Due to high spatiotemporal variations, estimations of riverine POC flux into the sea can be relatively inexact when based on field measurement only. In this s...
Article
Full-text available
The vent crab Xenograpsus testudinatus was firstly discovered in 2000 at the hydrothermal vent field off the coast of Kueishan Island. The present study attempts to understand the adaptive reproduction of this crab living in an extreme environment by examining its spatial and temporal distribution and isotopic signatures. The seasonal variation of...
Data
Deployment of the sediment trap. Left: The structure and setting of the sediment trap. The trap was deployed about 5m above the sea bottom. The length of trap tube is 55cm and has one membrane (diameter: 90mm; pore size: 4μm; polycarbonate) inside to collect the sink materials. Right: The picture of the trap in situ. (DOCX)
Data
The sinking materials collected from two sampling sites. Left: vent field, with many zooplankton (small materials with red color); Right: coral reef field, less zooplankton but have more macro algae fragments than vent field samples. (DOCX)
Data
Larval loss and spawning behavior in the crab vent crab Xenograpus testudinatus. (AVI)
Article
Full-text available
We measured particulate organic carbon (POC) fluxes from the euphotic zone into the twilight zone and deep waters (>1000 m) that occurred between the shelf and the basin in the South China Sea (SCS) and at the SouthEast Asia Time Series Station (SEATS) using floating sediment trap arrays. Additionally, selected sinking particles were imaged by scan...
Article
Full-text available
Shallow-water hydrothermal vent ecosystems are distinctly different from deep-sea vents, as other than geothermal, sunlight is one of their primary sources of energy, so their resulting microbial communities differ to some extent. Yet compared with deep-sea systems, less is known about the active microbial community in shallow-water ecosystems. Thu...