Distribution of Aureococcus anophagefferens in relation to environmental factors and implications for brown tide seed sources in Qinhuangdao coastal waters, China

Zhang, Qing‐Chun; Yu, Rencheng; Zhao, Jiayu; Kong, Fan‐Zhou; Chen, Zhen-Fan; Niu, Zhuang; Ling, Xiang

doi:10.1016/j.hal.2021.102105

Cited by 13 publications

(2 citation statements)

References 47 publications

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“…A. anophagefferens cells were abundant during the brown tide period in Qinhaungdao coastal waters, which can be seen as an indicator of brown tide. Zhang et al [32] reported that A. anophagefferens abundance was strongly positively correlated with nitrite and temperature. DON is commonly thought of as the main nitrite resource, and it is vital for improving A. anophagefferens-induced brown tide [46,47].…”

Section: Function Of Transfer From Tn To a Anophagefferensmentioning

confidence: 99%

“…However, it has been proven by many previous studies that the vertical nutrient condition also plays a vital role in affecting harmful algal bloom [33]. In addition to nutrients, some other pressure variables, such as salinity, temperature, and the distribution of Chl-a, influence A. anophagefferens growth, migration, and spatiotemporal distribution [32]. Hence, a 3D-coupled model involving a hydrodynamic model, an ecological model, and a particle tracking model should be further established to simulate the real process of A. anophagefferens-induced brown tide, which is expected to be developed in following studies to improve the forewarning system.…”

Section: Comparison With Other Forewarning Systemsmentioning

confidence: 99%

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A Simple Model for a Fast Forewarning System of Brown Tide in the Coastal Waters of Qinhuangdao in the Bohai Sea, China

Wang

Kuang

et al. 2022

Applied Sciences

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Qinhuangdao, a famous coastal resort city in northeastern China, has been affected by the rapid growth of harmful algae. The brown tide induced by Aureococcus anophagefferens (A. anophagefferens) first occurred along Qinhuangdao’s coastline in 2009, and it then developed into a harmful alga for the Bohai Sea. Based on MIKE 21, we construct a 2D coupled hydrodynamic and transport model to study the variation and distribution of total nitrogen (TN), and establish the relationship between A. anophagefferens, dissolved organic nitrogen (DON), and TN to provide a fast forewarning system for brown tide in Qinhuangdao. This model considers the decay, diffusion, and settling of TN, and the model results are in good agreement with the measured tidal level, current, and TN, indicating that the model is capable of capturing the observed TN distribution during the brown tide period. The transfer function relating TN to A. anophagefferens leads to a reliable fast forewarning and monitoring system. Moreover, the transferred A. anophagefferens cell density can be used to forecast the regional risk level of brown tide with a specific color indicator. The implementation of national policy relating to marine ecosystems decreases the nearshore concentration of N, P, and other nutrients, and therefore decreases harmful algal blooms. The fast routine assessment of brown tide by the present warning system provides robust guidance for the government to take action.

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Section: Function Of Transfer From Tn To a Anophagefferensmentioning

confidence: 99%

Section: Comparison With Other Forewarning Systemsmentioning

confidence: 99%