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The spatial and temporal distribution of floating green algae in the Subei Shoal in 2018 retrieved by Sentinel-2 images
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Chao Yuan1, 2, Jingyu Zhang1, Jie Xiao1, 2, Mingzhu Fu1, 2, Xuelei Zhang1, 2, *, Tingwei Cui1, Zongling Wang1, 2
Haiyang Xuebao | 2020, 42(8) : 12 - 20
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Haiyang Xuebao | 2020, 42(8): 12-20
• Progress on the development and prevention of Yellow Sea green tide •
The spatial and temporal distribution of floating green algae in the Subei Shoal in 2018 retrieved by Sentinel-2 images
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Chao Yuan1, 2, Jingyu Zhang1, Jie Xiao1, 2, Mingzhu Fu1, 2, Xuelei Zhang1, 2, *, Tingwei Cui1, Zongling Wang1, 2
Affiliations
  • 1 Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
  • 2 Laboratory of Marine Ecology and Environmental Science, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266237, China
Published: 2020-08-25 doi: 10.3969/j.issn.0253-4193.2020.08.002
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Since 2007, the annually Yellow Sea green tide (YSGT) have caused significant economic losses and serious social impacts in China. Previous research indicated that the floating green algal was originated from Subei Shoal, southwestern Yellow Sea, while the early development of floating green algae in the shoal remains unclear. Using Sentinel-2 high-resolution images, we extracted the floating green algae information in 2018. The effects of topography, sea surface temperature and sea surface wind on the distribution and development of floating green algae were studied using CCMP sea wind data and Microwave+IR Signal Fusion SST sea surface temperature data. The results showed that the first sign of floating green algae by satellites was detected in the south of Subei Shoal on May 23. The floating green algae expanded northwards in June, and decayed on July 13. The floating green algae could be traced back to the edge of Prophyra aquaculture area, aggregated and formed stripes along the sand grooves in the Subei Shoal. These stripes stretched tens of kilometers with width of 10–200 m and existed throughout the development of YSGT. In the region of north to Subei Shoal, the distribution and drifting of floating green algae were highly associated with wind directions. Based on our research, it is feasibleand cost-effective to collect and remove the floating algae in the Subei Shoal.

Ulva prolifera green tide  /  Subei Shoal  /  Sentinel-2  /  sea surface temperature  /  wind direction
Chao Yuan, Jingyu Zhang, Jie Xiao, Mingzhu Fu, Xuelei Zhang, Tingwei Cui, Zongling Wang. The spatial and temporal distribution of floating green algae in the Subei Shoal in 2018 retrieved by Sentinel-2 images[J]. Haiyang Xuebao, 2020 , 42 (8) : 12 -20 . DOI: 10.3969/j.issn.0253-4193.2020.08.002
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Article Info
doi: 10.3969/j.issn.0253-4193.2020.08.002
  • Receive Date：2019-11-10
  • Online Date：2026-03-26
  • Published：2020-08-25
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  • Received：2019-11-10
  • Revised：2020-03-23
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Affiliations
    1 Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
    2 Laboratory of Marine Ecology and Environmental Science, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266237, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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