Ecological thresholds of phytoplankton community across environmental gradients in the harmful algal blooms-frequently-occurring, subtropical coastal waters, East China Sea

This paper designs and develops a tool for detecting HABS from ENVI+IDL+ArcEngine. With a friendly and artistic interface offered by third party control, this tool provides a function of HABs monitoring in East China Sea via Remote Sensing Images inversion. Through rows of buttons on the menu bar, this tool allows calculating spectrum reflectance, browsing field work data, interpolating in situ measurement data, retrieving water property parameters, and detecting HABs position by the threshold of chlorophyll-a and sea surface temperature. Data management module programmed in Structured Query Language (SQL) in our tool simplifies the data process and stores a large amount of information. This paper elaborates the original design, functional modules, and multi data sources that gives a general view toward this tool.

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Occurrence and potential risks of harmful algal blooms in the East China Sea

The Science of The Total Environment ◽

10.1016/j.scitotenv.2009.02.040 ◽

2009 ◽

Vol 407 (13) ◽

pp. 4012-4021 ◽

Cited By ~ 110

Author(s):

Jinhui Wang ◽

Jianyong Wu

Keyword(s):

East China Sea ◽

Harmful Algal Blooms ◽

Algal Blooms ◽

East China ◽

The East China Sea ◽

China Sea ◽

Potential Risks

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Spatial, seasonal and species variations of harmful algal blooms in the South Yellow Sea and East China Sea

Hydrobiologia ◽

10.1007/s10750-006-0108-1 ◽

2006 ◽

Vol 568 (1) ◽

pp. 245-253 ◽

Cited By ~ 137

Author(s):

DanLing Tang ◽

BaoPing Di ◽

Guifeng Wei ◽

I-Hsun Ni ◽

Im Sang Oh ◽

...

Keyword(s):

East China Sea ◽

Yellow Sea ◽

Harmful Algal Blooms ◽

Algal Blooms ◽

East China ◽

South Yellow Sea ◽

The South ◽

China Sea ◽

The South Yellow Sea

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Elevated pCO2 Impedes Succession of Phytoplankton Community From Diatoms to Dinoflagellates Along With Increased Abundance of Viruses and Bacteria

Frontiers in Marine Science ◽

10.3389/fmars.2021.642208 ◽

2021 ◽

Vol 8 ◽

Author(s):

Ruiping Huang ◽

Jiazhen Sun ◽

Yunlan Yang ◽

Xiaowen Jiang ◽

Zhen Wang ◽

...

Keyword(s):

Primary Production ◽

East China Sea ◽

Algal Blooms ◽

Phytoplankton Community ◽

Seawater Temperature ◽

Plankton Community ◽

Bacterial Degradation ◽

East China ◽

Natural Seawater ◽

China Sea

Eutrophic coastal regions are highly productive and greatly influenced by human activities. Primary production supporting the coastal ecosystems is supposed to be affected by progressive ocean acidification driven by increasing CO2 emissions. In order to investigate the effects of high pCO2 (HC) on eutrophic plankton community structure and ecological functions, we employed 9 mesocosms and carried out an experiment under ambient (∼410 ppmv) and future high (1000 ppmv) atmospheric pCO2 conditions, using in situ plankton community in Wuyuan Bay, East China Sea. Our results showed that HC along with natural seawater temperature rise significantly boosted biomass of diatoms with decreased abundance of dinoflagellates in the late stage of the experiment, demonstrating that HC repressed the succession from diatoms to dinoflagellates, a phenomenon observed during algal blooms in the East China Sea. HC did not significantly influence the primary production or biogenic silica contents of the phytoplankton assemblages. However, the HC treatments increased the abundance of viruses and heterotrophic bacteria, reflecting a refueling of nutrients for phytoplankton growth from virus-mediated cell lysis and bacterial degradation of organic matters. Conclusively, our results suggest that increasing CO2 concentrations can modulate plankton structure including the succession of phytoplankton community and the abundance of viruses and bacteria in eutrophic coastal waters, which may lead to altered biogeochemical cycles of carbon and nutrients.

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