| Issue |
EPJ Web Conf.
Volume 344, 2025
AI-Integrated Physics, Technology, and Engineering Conference (AIPTEC 2025)
|
|
|---|---|---|
| Article Number | 01018 | |
| Number of page(s) | 5 | |
| Section | AI-Integrated Physics, Technology, and Engineering | |
| DOI | https://doi.org/10.1051/epjconf/202534401018 | |
| Published online | 22 December 2025 | |
https://doi.org/10.1051/epjconf/202534401018
Diversity of marine algae assessed by environmental DNA metabarcoding: A case study from Gili Genting, Gili Labak, and Karang Takat-Indonesia
1 Department of Marine Science, Faculty of Agriculture, Universitas Trunodjoyo Madura. Jl. Raya Telang, Bangkalan 69162, East Java, Indonesia,
2 Department of Biology, Faculty of Science and Mathematics, Universitas Diponegoro. Jl. Prof. Sudarto, S.H., Tembalang, Semarang 50275, Central Java, Indonesia
3 Yayasan MERO Foundation, Banjar Dinas Muntig, Tulamben, Kubu, Karangasem 80853, Bali, Indonesia
4 Diponegoro Marine Biodiversity Project Laboratory, Universitas Diponegoro. Jl. Prof. Sudarto, S.H., Tembalang, Semarang 50275, Central Java, Indonesia
5 Department of Marine Science, Faculty of Fisheries and Marine Sciences, Universitas Diponegoro. Jl. Prof. Sudarto, S.H., Tembalang, Semarang 50275, Central Java, Indonesia
* Corresponding author: insafitri@trunojoyo.ac.id
Published online: 22 December 2025
Environmental DNA (eDNA) metabarcoding has emerged as a powerful tool for detecting and monitoring marine biodiversity, particularly for taxa that are difficult to identify using traditional methods. The objective in this study is to assess the diversity of marine algae, including Chlorophyta, Phaeophyta, and Rhodophyta, in three coastal sites of Indonesia: Gili Genting, Gili Labak, and Karang Takat. eDNA samples were collected and sequenced to identify algal taxa and estimate their relative abundance across locations. The results revealed clear spatial variations in algal communities. Gili Genting showed dominance of Micromonas pusilla and other Chlorophyta species associated with nutrient-enriched waters. Karang Takat exhibited higher Rhodophyta diversity, reflecting a stable and mature benthic environment. Gili Labak displayed lower algal diversity and abundance, possibly due to limited substrate availability or lower DNA yield. These findings highlight the effectiveness of eDNA metabarcoding in detecting fine-scale spatial patterns of algal diversity and provide valuable insights for monitoring and managing tropical coastal ecosystems in Indonesia.
© The Authors, published by EDP Sciences, 2025
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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