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Algae Distribution, Risk, and Prediction

A special issue of Water (ISSN 2073-4441). This special issue belongs to the section "Biodiversity and Functionality of Aquatic Ecosystems".

Deadline for manuscript submissions: 20 November 2025 | Viewed by 50

Special Issue Editor


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Guest Editor
1. Key Laboratory of Water and Sediment Sciences, College of Environmental Sciences and Engineering, Peking University, Ministry of Education, Beijing 100871, China
2. School of Human Settlements and Civil Engineering, Xi'an Jiaotong University, Xi'an 710049, China
Interests: algal ecology; ecological protection and restoration; algal bloom early warning; risk prevention

Special Issue Information

Dear Colleagues,

Algae were vital contributors to primary productivity and nutrient cycling of aquatic ecosystems. They play a crucial role in maintaining the ecological balance and monitoring the environmental health of water bodies. Their dynamics and distribution were intricately influenced by various factors, such as light, temperature, and nutrients. However, the increasing impacts of anthropogenic stressors and climate change have led to a rise in harmful algal bloom (HAB) events across diverse water bodies. These blooms not only disrupt aquatic ecosystems but also release toxins that contaminate water sources, threaten human health, as well as devastate fisheries and aquaculture. As a result, addressing the risks associated with algae has become a pressing global environmental challenge.

To address these challenges, this special issue, entitled “Algae Distribution, Risk, and Prediction”, focuses on advancing our understanding of algal ecology, with an emphasis on biodiversity, spatiotemporal distribution patterns, and the mechanisms driving toxin production. Meanwhile, it also advances innovative early-warning systems and management strategies to mitigate the ecological risks posed by HABs. By integrating cutting-edge research and practical solutions, this issue aims to support sustainable water resource management and enhance the resilience of aquatic ecosystems in the face of global environmental changes. Through a multidisciplinary approach, it provides valuable insights for policymakers, researchers, and stakeholders, offering effective strategies to protect water quality and safeguard ecosystem health.

Dr. Jiawen Wang
Guest Editor

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Keywords

  • algae
  • biodiversity
  • spatiotemporal distribution
  • risk
  • management

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Published Papers (1 paper)

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Research

13 pages, 2844 KiB  
Article
Influence of Distribution Spacing on Intraspecific Competition in the Brown Seaweed Sargassum thunbergii Along the Luhua Coast, China
by Fukun Gui, Kai Zong, Jinhuai Ni, Sunzhaocong Lan, Jianpeng Lu, Tumusenge Daniel, Dejun Feng, Xu Yang, Guangyang Zhang, Lili Mei, Jun Li, Xueping Lin, Xunmeng Li, Hongzhou Chen and Qingping Zou
Water 2025, 17(12), 1735; https://doi.org/10.3390/w17121735 (registering DOI) - 8 Jun 2025
Abstract
Sargassum thunbergii is a dominant seaweed species in the intertidal zone along the coast of China. It provides various ecological services, such as primary productivity, marine carbon sequestration, and water purification. To investigate the population structure characteristics of Sargassum thunbergii, the Hegyi [...] Read more.
Sargassum thunbergii is a dominant seaweed species in the intertidal zone along the coast of China. It provides various ecological services, such as primary productivity, marine carbon sequestration, and water purification. To investigate the population structure characteristics of Sargassum thunbergii, the Hegyi competition model was employed to quantify intraspecific competition within populations in the intertidal zone of Luhua Island, China. The results showed that the competition intensity decreased as a power function (y = 1.93x−0.89, R2 = 0.28) with increasing seaweed height. Intraspecific competition had minimal effects on seaweeds taller than 50 cm. Seaweeds at lower population levels exhibited more stable competition indices. Therefore, the model can reliably predict intraspecific competition intensity in Sargassum thunbergii. The sample circle method was applied to identify an optimal intraspecific competitive range of 50 cm for intertidal populations of Sargassum thunbergii. This study provides scientific guidance for seaweed spacing and rational harvesting during ecological restoration. Moreover, it offers valuable insight for conserving other macroalgae, such as Sargassum fusiforme, and restoring seaweed beds ecologically. Full article
(This article belongs to the Special Issue Algae Distribution, Risk, and Prediction)
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