Harmful Algal Blooms: Distribution and Diversity

A special issue of Diversity (ISSN 1424-2818).

Deadline for manuscript submissions: 31 October 2026 | Viewed by 1616

Special Issue Editor


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Guest Editor
Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
Interests: harmful algal blooms; metabolites; multi-omics; cyanobacteria; microalgae; dinoflagellate; ecological disaster; phycotoxin; ichthyotoxicity; allelopathy
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Special Issue Information

Dear Colleagues,

Harmful Algal Blooms (HABs) pose severe threats to aquatic ecosystems, human health, and global economies. Ecologically, they disrupt food webs by depleting oxygen, creating vast "dead zones" that cause mass mortality of fish and other aquatic life. Furthermore, potent toxins produced by certain species can bioaccumulate within the food chain, leading to poisoning events in upper trophic levels, including birds and marine mammals, thereby critically undermining biodiversity and ecosystem stability, and even damaging fisheries/aquaculture.

Compounded by the dual pressures of climate change and anthropogenic disturbances, eutrophication intensifies, and the frequency, scale, and duration of HABs are increasing globally. This alarming trend underscores the critical necessity and urgency for advanced research. Understanding HABs’ ecological impacts, spatial distribution patterns, species/diversity dynamics, and omics is critical for mitigation.

This Special Issue in Diversity aims to gather cutting-edge research (e.g., ecological impact, distribution modeling, diversity surveys) to advance HAB science, supporting evidence-based management strategies. We invite contributions that unravel HAB complexities across aquatic environments.

Dr. Lixia Shang
Guest Editor

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Keywords

  • harmful algal blooms (HABs)
  • spatial distribution
  • omics
  • algal diversity

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Published Papers (1 paper)

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Research

16 pages, 1773 KB  
Article
Seasonal Dynamics of Phytoplankton Community Structure and Environmental Drivers in the Coastal Waters of the Leizhou Peninsula, China
by Jianming Li, Menghan Gao, Bihong Liu, Yingyi Fan, Junyu Wei, Yulei Zhang, Feng Li, Ning Zhang and Zhangxi Hu
Diversity 2025, 17(12), 867; https://doi.org/10.3390/d17120867 - 17 Dec 2025
Cited by 1 | Viewed by 1186
Abstract
To investigate the seasonal dynamics of phytoplankton community structure and its relationship with environmental factors in the coastal waters of the Leizhou Peninsula, China, surveys were conducted at 21 stations during four seasonal cruises: autumn (August 2022), winter (December 2022), spring (March 2023), [...] Read more.
To investigate the seasonal dynamics of phytoplankton community structure and its relationship with environmental factors in the coastal waters of the Leizhou Peninsula, China, surveys were conducted at 21 stations during four seasonal cruises: autumn (August 2022), winter (December 2022), spring (March 2023), and summer (June 2023). A total of 174 phytoplankton species from 7 phyla were identified. Species richness peaked in summer (93 species, 5 phyla), followed by winter (80 species, 3 phyla), spring (79 species, 5 phyla), and autumn (75 species, 5 phyla). Bacillariophyta dominated throughout the year, with Skeletonema costatum (Greville) Cleve 1878 and Chaetoceros lorenzianus Grunow 1863 being consistently dominant across all seasons. Phytoplankton cell density showed a distinct seasonal pattern, highest in autumn, followed by summer, and lower in spring and winter. Diversity indices (H, J, D) indicated moderately to heavily polluted waters. Redundancy analysis identified salinity, dissolved inorganic nitrogen, chlorophyll a (Chl a), pH, water temperature, chemical oxygen demand, and dissolved silicon as key environmental drivers, with their influence varying seasonally: salinity was strongest in summer, Chl a in winter, and multiple factors jointly shaped the community in spring and autumn. This study provides a comprehensive assessment of phytoplankton biodiversity and clarifies the environmental drivers of their distribution in the coastal waters of the Leizhou Peninsula, China. Full article
(This article belongs to the Special Issue Harmful Algal Blooms: Distribution and Diversity)
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