Prevention strategies for green tides at source in the Southern Yellow Sea

Yuqing Sun; Lulu Yao; Jinlin Liu; Yichao Tong; Jing Xia; Xiaohui Zhao; Shuang Zhao; Meilin Fu; Minmin Zhuang; Peimin He; Jianheng Zhang

doi:10.1016/j.marpolbul.2022.113646

Prevention strategies for green tides at source in the Southern Yellow Sea

Mar Pollut Bull. 2022 May:178:113646. doi: 10.1016/j.marpolbul.2022.113646. Epub 2022 Apr 12.

Authors

Yuqing Sun¹, Lulu Yao¹, Jinlin Liu², Yichao Tong¹, Jing Xia¹, Xiaohui Zhao³, Shuang Zhao⁴, Meilin Fu¹, Minmin Zhuang⁵, Peimin He⁶, Jianheng Zhang⁷

Affiliations

¹ College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai 201306, China.
² College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai 201306, China; North China Sea Environmental Monitoring Center, State Oceanic Administration, Qingdao 266061, China; The Key Laboratory of Zoological Systematics and Application, Hebei University, Baoding 071002, China. Electronic address: 15721539745@139.com.
³ State Key Laboratory of Eco-hydraulics in Northwest Arid Region, Xi'an University of Technology, Xi'an 710048, China.
⁴ College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai 201306, China. Electronic address: 1099978653@qq.com.
⁵ State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai 200062, China.
⁶ College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai 201306, China. Electronic address: pmhe@shou.edu.cn.
⁷ College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai 201306, China. Electronic address: jh-zhang@shou.edu.cn.

PMID: 35427815
DOI: 10.1016/j.marpolbul.2022.113646

Abstract

As global ecological disasters, green tide outbreaks have been observed in the Southern Yellow Sea (SYS) of China since 2007, resulting in considerable economic losses and environmental damage to the coastal cities of Jiangsu and Shandong Provinces. Therefore, prevention of green tides is crucial. Previous studies have revealed that a relatively small green tide outbreak scale in the SYS was observed in 2018 and 2020, with the green tides covering areas of 193 km² and 192 km² and durations of 91 days and 64 days, respectively. Killing green macroalgae attached to cultivation ropes in Neopyropia aquaculture areas, which has been considered a primary source of the blooms, early removal of Neopyropia aquaculture rafts, and green tide prevention in the SYS are the key reasons for the decrease in green tides in 2018 and 2020. Furthermore, to address the challenges associated with the current green tide source prevention measures, we proposed a comprehensive control method that combines ecological farming, early green tide prevention, and resource utilization. Potential secondary pollution caused by the chemicals used to control Ulva prolifera can be minimized. Conversely, Neopyropia yezoensis quality may be enhanced through continuous improvement of its culturing process, which in turn, could reduce the green tide blooming scale.

Keywords: Green tide; Neopyropia aquaculture; Prevention strategies; Southern Yellow Sea; Ulva prolifera.

Publication types

Review

MeSH terms

Aquaculture
Environmental Monitoring
Eutrophication
Seaweed*
Ulva*