Major controlling factors for spatio-temporal variations in the macromolecular composition and primary production by phytoplankton in Garolim and Asan bays in the Yellow Sea

Abstract Since 2007, Ulva prolifera disasters have occurred every year in the South Yellow Sea of China, the largest green tide disaster in the world. The inter-annual differences make such disasters monitoring and early warning difficult. This study used remote sensing data (2015–2019) to determine its spatio-temporal variations in all life cycle. The results showed a lay effect between the NDVI-mean and the coverage area of U. prolifera. The spatio-temporal distribution of U. prolifera showed stages and regional differences. From late April to early May, U. prolifera first emerged near the Subei Shoal. After development in the middle of the Yellow Sea, U. prolifera outbroke in the eastern sea area of Shandong and Jiangsu, declined in the Shandong sea area, and disappeared near Qingdao. The cycle lasted for approximately 90 days. The sea surface temperature was the necessary condition for the disaster, and the sea wind field was the main driving force for its horizontal drift. This study overcomes the poor timing and continuity of remote sensing data in the monitoring of U. prolifera. It provides a theoretical reference for forecasting the outbreak period of U. prolifera and can aid policy-makers to avert such disasters in advance.

Download Full-text

Spatio-temporal variations of sea surface halocarbon concentrations and fluxes from southern Yellow Sea

Biogeochemistry ◽

10.1007/s10533-014-0007-x ◽

2014 ◽

Vol 121 (2) ◽

pp. 369-388 ◽

Cited By ~ 11

Author(s):

Gui-Peng Yang ◽

Bin Yang ◽

Xiao-Lan Lu ◽

Hai-Bing Ding ◽

Zhen He

Keyword(s):

Yellow Sea ◽

Temporal Variations ◽

Sea Surface ◽

Southern Yellow Sea ◽

Spatio Temporal

Download Full-text

Datasets on the spatial distribution of mercury and its controlling factors in the Yellow Sea

Data in Brief ◽

10.1016/j.dib.2021.106792 ◽

2021 ◽

Vol 35 ◽

pp. 106792

Author(s):

Do Hyun Jeong ◽

Wooyoung Jeong ◽

Saehun Baeg ◽

Jihun Kim

Keyword(s):

Spatial Distribution ◽

Yellow Sea ◽

Controlling Factors ◽

The Yellow Sea

Download Full-text

Distribution of dissolved gaseous mercury (DGM) and its controlling factors in the Yellow Sea and Bohai Sea

Ecotoxicology and Environmental Safety ◽

10.1016/j.ecoenv.2019.05.049 ◽

2019 ◽

Vol 180 ◽

pp. 715-722 ◽

Cited By ~ 2

Author(s):

Guoyi Cheng ◽

Dan Li ◽

Yanbin Li

Keyword(s):

Yellow Sea ◽

Bohai Sea ◽

Controlling Factors ◽

The Yellow Sea ◽

Gaseous Mercury ◽

Dissolved Gaseous Mercury

Download Full-text

The silica-carbon biogeochemical cycle in the Bohai Sea and its responses to the changing terrestrial loadings

10.5194/bg-2016-42 ◽

2016 ◽

Author(s):

Jun Liu ◽

Lex Bouwman ◽

Jiaye Zang ◽

Chenying Zhao ◽

Xiaochen Liu ◽

...

Keyword(s):

Primary Production ◽

Water Column ◽

Yellow Sea ◽

Bohai Sea ◽

Critical Role ◽

The Yellow Sea ◽

Organic C ◽

Riverine Input ◽

The Bohai Sea ◽

River Loads

Abstract. Silicon (Si) and carbon (C) play key roles in the river and marine biogeochemistry. The Si and C budgets for the Bohai Sea were established on the basis of measurements at a range of stations and additional data from the literature. The results show that the spatial distributions of reactive Si and organic C (OC) in the water column are largely affected by the riverine input, primary production and export to the Yellow Sea. Biogenic silica (BSi) and total OC in sediments are mainly from marine primary production. The major supply of dissolved silicate (DSi) comes from benthic diffusion, riverine input alone accounts for 17 % of reactive Si inputs to the Bohai Sea; the dominant DSi removal from the water column is diatom uptake, followed by sedimentation. Rivers contribute 47 % of exogenous OC inputs to the Bohai Sea; the dominant outputs of OC are sedimentation and export to the Yellow Sea. The net burial of BSi and OC represent 3.3 % and 1.0 % of total primary production, respectively. Primary production has increased by 10 % since 2002 as a result of increased river loads of DSi and BSi. Our findings underline the critical role of riverine Si supply in primary production in coastal marine ecosystems.

Download Full-text