Journal of Marine Studies
Volume 1, Issue 2 (July, 2024)

Compositional analysis of invertebrate communities in Raja Ampat conservation zones using environmental DNA (eDNA)

Arina Ruzanna (Department of Marine Science, Faculty of Agriculture, Universitas Malikussaleh. Reuleut Main Campus, 24355 North Aceh)
Hawis Madduppa (Department of Marine Sciences, Faculty of Fisheries and Marine Sciences, IPB University, Kampus IPB Dramaga, Bogor)
Nurlisa Alias Butet (Department of Water Resource Management, Faculty of Fisheries and Marine Sciences, IPB University, Kampus IPB Dramaga, Bogor)



Article Info

Publish Date
27 Jul 2024

Abstract

Raja Ampat conservation area is divided into three zones: the core zone, the tourism zone, and the open zone. This region is crucial for sustainable fisheries and environmental management, yet it is under significant anthropogenic pressure. Accurate species detection is essential for inventory and diversity surveys, and environmental DNA (eDNA) methods have been shown to be more effective than conventional techniques. This study aimed to evaluate whether V9 primers could detect multispecies invertebrate compositions, assess community structure and contributions within each zone, and identify significant differences in invertebrate diversity among the zones. A total of 66 eDNA samples were collected from water and sediment columns across the three zones. Samples were extracted using the NucleoSpin™ kit (Macherey-Nagel) protocol, amplified with universal eukaryote primers targeting the 18S gene, and sequenced using Illumina MiSeq. Taxonomic analysis was performed using QIIME2 software and the SILVA database. The study identified 19 invertebrate species. The Shannon-Wiener (H') and Simpson (D) indices revealed greater species diversity in the core zone compared to the tourism and open zones. However, the Kruskal-Wallis test indicated no significant differences in species diversity across the zones. SIMPER analysis demonstrated a high percent contribution of species in each zone. This study highlights the effectiveness of eDNA methods for biodiversity assessment and offers valuable insights into invertebrate community structures within the Raja Ampat conservation area.

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Journal Info

Abbrev

JoMS

Publisher

Subject

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry Earth & Planetary Sciences Environmental Science

Description

Journal of Marine Studies (JoMS) is an international peer-reviewed, open-access scientific journal dedicated to publishing novel research articles, critical-review articles, case studies, short communications, methodological advances, and data papers on all aspects of the marine environment that ...