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Frederik Rijoly
Universitas Pattimura
Aerospace Engineering Agriculture, Biological Sciences & Forestry Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Dentistry Economics, Econometrics & Finance Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Mathematics Mechanical Engineering Medicine & Pharmacology Nursing Public Health Social Sciences Veterinary

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Coral Reef Fish Community in the Waters of Osi Island West Seram Maluku Sara Haumahu; Indra Komalia; Frederik Rijoly
Nekton Vol 6 No 1 (2026): Nekton
Publisher : Politeknik Negeri Sambas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47767/nekton.v6i1.1107

Abstract

Coral reef fish are a crucial fishery resource in tropical waters, including Maluku. Information regarding the species of coral reef fish caught in the waters of Osi Island, West Seram District, is still limited. This study aimed to identify the coral reef fish species captured in the waters of Osi Island and its surroundings based on their meristic and morphometric characteristics. The research was conducted in December 2024, utilizing 12 fish specimens caught by local fishermen. Species identification was carried out through the observation of meristic and morphometric characters, which were then matched with identification keys and taxonomic literature. The results revealed seven coral reef fish species belonging to five genera: Lutjanus, Pterocaesio, Myripristis, Sargocentron, and Siganus. The species identified included Lutjanus rufolineatus, Lutjanus fulviflamma, Pterocaesio tesselata, Myripristis berndti, Myripristis murdjan, Sargocentron tiereoides, and Siganus fuscescens. Pterocaesio tesselata and Siganus fuscescens were the most commonly found species, with three specimens of each. The meristic and morphometric characteristics of all specimens fell within the ranges described in previous studies for these species. This study contributes additional baseline information on the diversity of coral reef fish in Maluku waters.
Struktur Komunitas dan Biomassa Ikan Target pada Terumbu Karang KKLD Misool Selatan, Papua Barat Daya Frederik Rijoly; Stefanno Markus Anthony Rijoly; Kedswin Gerson Hehanussa
INSOLOGI: Jurnal Sains dan Teknologi Vol. 5 No. 2 (2026): April 2026
Publisher : Yayasan Literasi Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55123/insologi.v5i2.7844

Abstract

Coral reef ecosystems are among the most biodiverse marine ecosystems and play a crucial role in supporting tropical fisheries productivity and the sustainability of coastal resources. Monitoring the biomass of target fish is an important indicator for assessing ecosystem condition and the effectiveness of marine protected area management. This study aimed to analyze species richness and the biomass structure of target fish in the Food Security and Tourism Sub-Zone of the Regional Marine Conservation Area (KKLD) of South Misool, Southwest Papua. Data were collected from May 8 to 16, 2025, at 12 sites using the Underwater Visual Census (UVC) method at depths of 5 m and 12 m. The results recorded 80 species belonging to 15 families, with species richness ranging from 22 to 43 species per site. The total biomass of target fish reached 1665.62 tons/km², ranging from 24.97 to 640.03 tons/km², with the highest biomass observed at Magic Mountain and the lowest at Fyabya. Biomass distribution was strongly influenced by the presence of large-bodied and schooling species. Correlation analysis indicated no significant relationship between species richness and fish biomass (p > 0.05), suggesting that biomass is primarily driven by body size and the dominance of particular species rather than species number. Overall, the target fish community in this area is considered to be in good condition and supports sustainable coral reef ecosystem management.
Co-Authors Hehanussa, Kedswin Gerson Indra Komalia Sara Haumahu Stefanno M A Rijoly