Metabarcoding Reveals Diversity of Potentially Toxic Algae in Papeete Port (Tahiti).
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| Autores principales: | , , , |
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| Formato: | Artículo científico |
| Lenguaje: | en |
| Publicado: |
Toxins
2025
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| _version_ | 1868266160089202688 |
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| author | Fernandez, Sara Cartairade, Lucie Garcia-Vazquez, Eva Planes, Serge |
| author_facet | Fernandez, Sara Cartairade, Lucie Garcia-Vazquez, Eva Planes, Serge Fernandez, Sara Cartairade, Lucie Garcia-Vazquez, Eva Planes, Serge |
| collection | PubMed - marine biology |
| contents | Metabarcoding Reveals Diversity of Potentially Toxic Algae in Papeete Port (Tahiti). Fernandez, Sara Cartairade, Lucie Garcia-Vazquez, Eva Planes, Serge DNA Barcoding, Taxonomic Animals Polynesia Dinoflagellida Marine Toxins Environmental Monitoring Haptophyta Harmful Algal Bloom Diatoms Ships Biodiversity Harmful algae are transported in various compartments of maritime vessels, making ports with heavy maritime traffic potential hotspots for their introduction and spread. In this study, we investigate the port of Papeete (Tahiti, French Polynesia), a key hub for numerous South Pacific shipping routes. Using metabarcoding on DNA extracted from water samples (environmental DNA, eDNA) we identified 21 species of harmful algae comprising to Bacillariophyceae (4), Dinophyceae (14), and Haptophyta (3 species). Three of those species are directly associated with fish mortality events without recognized toxigenic capacity. The remaining harmful algae species are known to produce a wide range of toxins, like the ciguatoxin produced by endemic sp., domoic acid, haemolysins, yessotoxins, and others. Health risks such as ciguatera and paralytic shellfish poisoning were identified. An increase in frequency in Papeete port waters was parallel to an increase in ciguatera fish poisoning events in Tahiti, which suggests the value of eDNA analysis for early warning of harmful algae presence. Management measures, including banning fishing near the ports, could prevent public health risks associated with harmful algae blooms. |
| format | Artículo científico |
| id | pubmed_40864100 |
| institution | PubMed |
| language | en |
| publishDate | 2025 |
| publisher | Toxins |
| record_format | pubmed |
| spellingShingle | Metabarcoding Reveals Diversity of Potentially Toxic Algae in Papeete Port (Tahiti). Fernandez, Sara Cartairade, Lucie Garcia-Vazquez, Eva Planes, Serge DNA Barcoding, Taxonomic Animals Polynesia Dinoflagellida Marine Toxins Environmental Monitoring Haptophyta Harmful Algal Bloom Diatoms Ships Biodiversity Metabarcoding Reveals Diversity of Potentially Toxic Algae in Papeete Port (Tahiti). Fernandez, Sara Cartairade, Lucie Garcia-Vazquez, Eva Planes, Serge DNA Barcoding, Taxonomic Animals Polynesia Dinoflagellida Marine Toxins Environmental Monitoring Haptophyta Harmful Algal Bloom Diatoms Ships Biodiversity Harmful algae are transported in various compartments of maritime vessels, making ports with heavy maritime traffic potential hotspots for their introduction and spread. In this study, we investigate the port of Papeete (Tahiti, French Polynesia), a key hub for numerous South Pacific shipping routes. Using metabarcoding on DNA extracted from water samples (environmental DNA, eDNA) we identified 21 species of harmful algae comprising to Bacillariophyceae (4), Dinophyceae (14), and Haptophyta (3 species). Three of those species are directly associated with fish mortality events without recognized toxigenic capacity. The remaining harmful algae species are known to produce a wide range of toxins, like the ciguatoxin produced by endemic sp., domoic acid, haemolysins, yessotoxins, and others. Health risks such as ciguatera and paralytic shellfish poisoning were identified. An increase in frequency in Papeete port waters was parallel to an increase in ciguatera fish poisoning events in Tahiti, which suggests the value of eDNA analysis for early warning of harmful algae presence. Management measures, including banning fishing near the ports, could prevent public health risks associated with harmful algae blooms. |
| title | Metabarcoding Reveals Diversity of Potentially Toxic Algae in Papeete Port (Tahiti). |
| topic | DNA Barcoding, Taxonomic Animals Polynesia Dinoflagellida Marine Toxins Environmental Monitoring Haptophyta Harmful Algal Bloom Diatoms Ships Biodiversity |
| url | https://pubmed.ncbi.nlm.nih.gov/40864100/ |