Responses of a coastal phytoplankton community to increased nutrient input from the Changjiang (Yangtze) River

Zhou, Mingjiang; Shen, Zhongrong; Yu, Rencheng

doi:10.1016/j.csr.2007.02.009

Cited by 506 publications

(258 citation statements)

References 25 publications

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“…The enhanced nutrient concentrations caused by increasing anthropogenic activities had stimulated red tide outbreaks around the plume front (Chai et al, 2006;Wang, 2006;Zhou et al, 2008) where both light and nutrient were sufficient for algae growth. At stations Y9 and Y9a, TSM concentrations decreased dramatically (Fig.…”

Section: Joint Effect Of Cdw and Coastal Upwelling On Phytoplankton Pmentioning

confidence: 99%

Joint effect of freshwater plume and coastal upwelling on phytoplankton growth off the Changjiang River

Tseng¹,

Lin

Dai

et al. 2014

Biogeosciences

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Section: Joint Effect Of Cdw and Coastal Upwelling On Phytoplankton Pmentioning

confidence: 99%

Joint effect of freshwater plume and coastal upwelling on phytoplankton growth off the Changjiang River

Tseng¹,

Lin

Dai

et al. 2014

Biogeosciences

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“…Continental discharge is one of the main sources of terrigenous sediments, nutrients, and anthropogenic pollution in the sea and can significantly affect seabed morphology, water quality, primary productivity, and fishery in coastal areas (e.g., Emmet, 2006;Milliman et al, 2007;Zhou et al, 2008;Rabalais, 2010). Generally, the majority of fluvial runoff and the related discharge of its suspended and dissolved constituents on a regional scale are provided by the largest local rivers, and small rivers (i.e., rivers with small drainage basins and small annual discharges) usually play an insignificant role.…”

Section: Introductionmentioning

confidence: 99%

Small river plumes off the northeastern coast of the Black Sea under average climatic and flooding discharge conditions

Osadchiev

Korshenko

2017

Ocean Sci.

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Abstract. This study focuses on the impact of discharges of small rivers on the delivery and fate of fluvial water and suspended matter at the northeastern part of the Black Sea under different local precipitation conditions. Several dozens of mountainous rivers flow into the sea at the study region, and most of them, except for several of the largest, have little annual runoff and affect adjacent coastal waters to a limited extent under average climatic conditions. However, the discharges of these small rivers are characterized by a quick response to precipitation events and can significantly increase during and shortly after heavy rains, which are frequent in the considered area. The delivery and fate of fluvial water and terrigenous sediments at the study region, under average climatic and rain-induced flooding conditions, were explored and compared using in situ data, satellite imagery, and numerical modeling. It was shown that the point-source spread of continental discharge dominated by several large rivers under average climatic conditions can change to the linesource discharge from numerous small rivers situated along the coast in response to heavy rains. The intense line-source runoff of water and suspended sediments forms a geostrophic alongshore current of turbid and freshened water, which induces the intense transport of suspended and dissolved constituents discharged with river waters in a northwestern direction. This process significantly influences water quality and causes active sediment load at large segments of the narrow shelf at the northeastern part of the Black Sea compared to average climatic discharge conditions.

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“…Recent results, however, showed that at the mouth of the Yangtze River the nitrate concentration has increased about three-fold in 40 years, from 1.3 mg l -1 in the 1960s to 3.7 mg l -1 in the 1980s and to 5.0 mg l -1 in 1990-2004. Phosphate concentration increased by a factor of 30%, from 0.056 mg l -1 in the 1980s to 0.073 mg l -1 in 1990-2004 (Zhou et al 2008). Monitoring stations at the lower reach of the Yellow River, China's second longest river, revealed a three-fold increase in nitrogen concentrations over the 10 years between 1990 and 1999 (Xia et al 2002).…”

Section: Nutrient Enrichment In China's Surface Watersmentioning

confidence: 99%

“…In the 1960s, there was only one recorded red tide incident every 5 years in China's coastal waters. But now there are 90 red tides each year on average (Zhou et al 2008). Although this dramatic increased figure may partly be explained by the improved monitoring in recent years, it is well accepted that we are now having more worst red tides (Li and Daler 2004;Yang and Hodgkiss 2004).…”

Section: Introductionmentioning

confidence: 99%

Eutrophication in a Chinese Context: Understanding Various Physical and Socio-Economic Aspects

Gao

Zhang

2010

AMBIO

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Eutrophication is now a ubiquitous water quality impairment in China. The first step toward restoration of eutrophicated water bodies is a marked reduction of nutrient loadings in their drainage basins. However, the combination of a number of physical and socio-economic factors is now producing compounded increases in nutrient loads while the nutrient assimilation capacities of natural systems are decreasing. Meanwhile, most of the lakes in densely populated part of China are shallow and very susceptible to anthropogenic alteration. Therefore, in spite of ascending efforts in eutrophication control upward trends of algal blooms in both fresh and coastal waters have been observed for the past two decades. Huge knowledge gap exists in our understanding of the sources and pathways of nutrient losses to aquatic ecosystems. Successful water quality restoration of China's eutrophic waters relies not only on more resource input but also more emphasis on basic, integrated, and management-oriented research.

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Responses of a coastal phytoplankton community to increased nutrient input from the Changjiang (Yangtze) River

Cited by 506 publications

References 25 publications

Joint effect of freshwater plume and coastal upwelling on phytoplankton growth off the Changjiang River

Joint effect of freshwater plume and coastal upwelling on phytoplankton growth off the Changjiang River

Small river plumes off the northeastern coast of the Black Sea under average climatic and flooding discharge conditions

Eutrophication in a Chinese Context: Understanding Various Physical and Socio-Economic Aspects

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