Physical drivers of Noctiluca scintillans (Dinophyceae) blooms outbreak in the northern Taiwan Strait: A numerical study

Lin，Zhonghao1,2; Zhan，Peng3; Li，Jianping4; Sasaki，Jun5; Qiu，Zhongfeng1; Chen，Chun6; Zou，Shuangyan7; Yang，Xiaotong1,2; Gu，Haifeng1,2,8

2024-03-01

10.1016/j.hal.2024.102586

Harmful Algae   影响因子和分区

1568-9883

1878-1470

The red Noctiluca scintillans (RNS) blooms often break out near Pingtan Island, in the northern Taiwan Strait from April to June. It is essential to gain insights into their formation mechanism to predict and provide early warnings for these blooms. Previous studies and observations showed that RNS blooms are the most likely to occur when winds are weak and shifting in direction. To explore this phenomenon further, we employed a high-resolution coastal model to investigate the hydrodynamics influencing RNS blooms around Pingtan Island from April to June 2022. The model results revealed that seawater exhibited weak circulation but strong stratification during RNS blooms. Residence time were examined through numerical experiments by releasing passive neutrally buoyant particles in three bays of Pingtan Island. The results showed a significantly longer residence time during RNS blooms, indicating reduced flushing capabilities within the bays, which could give RNS a stable environment to multiply and aggregate. This hydrodynamic condition provided a favorable basis for RNS blooms breakout near Pingtan Island. The shifts and weakening of the prevailing northeast wind contributed substantially to weakening the flow field around Pingtan Island and played a crucial role in creating the hydrodynamics conducive to RNS blooms. Our study offers fresh insights into the mechanisms underpinning RNS blooms formation near Pingtan Island, providing a vital framework for forecasting RNS blooms in this region.

Hydrodynamic conditions Noctiluca scintillans Numerical modeling Residence time Stratification

SCI

英语

其他

PLANT & ANIMAL SCIENCE

2-s2.0-85184827557

Scopus

1.School of Marine Sciences,Nanjing University of Information Science and Technology,Nanjing,210044,China
2.Third Institute of Oceanography,Ministry of Natural Resources,Xiamen,361005,China
3.Department of Ocean Science and Engineering,Southern University of Science and Technology,Shenzhen,518055,China
4.Shenzhen Institute of Advanced Technology,Chinese Academy of Sciences,Shenzhen,1068 Xueyuan Avenue,518055,China
5.Department of Socio-Cultural Environmental Studies,Graduate School of Frontier Sciences,The University of Tokyo,Chiba,5-1-5 Kashiwanoha, Kashiwa,277-8563,Japan
6.Island Research Center,Ministry of Natural Resources,Pingtan,350400,China
7.Agricultural and rural development service center of Pingtan comprehensive experimental area,Fuzhou,350004,China
8.Observation and Research Station of Island and Coastal Ecosystem in the Western Taiwan Straits,MNR,Xiamen,361005,China

Lin，Zhonghao,Zhan，Peng,Li，Jianping,et al. Physical drivers of Noctiluca scintillans (Dinophyceae) blooms outbreak in the northern Taiwan Strait: A numerical study[J]. Harmful Algae,2024,133.

Lin，Zhonghao.,Zhan，Peng.,Li，Jianping.,Sasaki，Jun.,Qiu，Zhongfeng.,...&Gu，Haifeng.(2024).Physical drivers of Noctiluca scintillans (Dinophyceae) blooms outbreak in the northern Taiwan Strait: A numerical study.Harmful Algae,133.

Lin，Zhonghao,et al."Physical drivers of Noctiluca scintillans (Dinophyceae) blooms outbreak in the northern Taiwan Strait: A numerical study".Harmful Algae 133(2024).