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Triyanto
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Journal : LIMNOTEK

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Morphometric and Genetic Variations of Freshwater Eels (Anguilla spp.) in Poso River, Central Sulawesi: Implications for Conservation Strategies Samir, Octavianto; Kamal, Mohammad Mukhlis; Kurnia, Rahmat; Larashati, Sekar; Triyanto; Widoretno, Mey Ristanti
LIMNOTEK Perairan Darat Tropis di Indonesia Vol. 30 No. 2 (2024)
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/limnotek.2024.5582

Abstract

The freshwater eel, Anguillids, is a valuable nutrition and commodity fish found in various freshwater environments. However, the world's population of Anguillids are declining because of habitat degradation, pollution, and barriers to migration, all of which are prevalent threats to freshwater ecosystems such as the Poso River in Central Sulawesi. Establishing conservation areas is one of the efforts to protect Anguillids and their habitats, which requires information on the anguillids morphometrics and genetics, where high morphometric and genetic variations are indicators of adaptation or evolution of the species to survive environmental changes. Therefore, the study aims to assess the morphometric and genetic variations  in the Poso River, Central Sulawesi. Samples were collected along the Poso River in the range of May 2021 and August 2023 . Different fishing gears were used depending on the location and Anguillids’ phase of life. A total of 150 eel samples were used for morphometric analysis, out of which 38 were selected randomly for the genetic one. Genetic diversity analysis was performed based on the Cytochrome c Oxidase I (COI).  The study successfully identified three species: A. bicolor, A. celebesensis, and A. marmorata. The key characteristic distinguishing the three species was ADL/TL ratio. Most coefficients of variation of morphometric characters of each species were above 10%, indicating medium to high variation. A total of 11 haplotypes were identified, of which six belong to A. marmorata and five to A. celebesensis. Generally, haplotype diversity was low, ranging from 0.2923 to 0.9333, and nucleotide diversity ranged from 0.0005 to 0.0046. The low genetic diversity observed in this study is likely a result of the migratory nature of Anguillids. Morphometric and genetic variations can support restocking as a conservation strategy to bolster wild populations. However, comprehensive studies must be conducted to understand all aspects impacting Anguillid resources for establishing conservation areas to protecti their populations and habitats.
Co-Authors Abd. Firman Bunta Anggraheni, Siska Fitri Ani Subekti Anisa Diah Ariana, Yudi Ario Wiraya Aris Eko Wibowo Astuti, Efi Tri Aurora Rizky Andira Bramastia Cintiara Kinanti, Tabita Deni Zein Tarsidi Dewi Gunawati Dhidhi Pambudi Djono Edeltrudis Ertin Resi Endrise Septina Rawanoko Erie Riza Nugraha Fafa Andreawan Falendra Jovanka Farida Nurhasanah Fedyana Wahyu Widjaya Ferry Sulistiyono Fitriana, Laila Getut Pramesti Getut Pramesti Hanifah Nur Istanti Harahap, Cicely Delfina Herawati, Emerta Retna Hidayatulloh, Muhammad Muslim Hieronymus Purwanta Indriayu, Mientasih Irwan Abbas Ismail, Aziah Ismiyanto Kissi Mandriyani Kisti Handayani Larashati, Sekar Lete, Patrisius Remby Maarten Dolk, Maarten Madiong, Dwi Ayu Ratnasari A. Marsaoly, M. Azrul MAULANA, BARIQ Misnah Misnah Mohammad Mukhlis Kamal Mohd Hairy Ibrahim Mola, Sebastian Adi Santoso Muh. Nuryatno Muhammad Adib Sugih Arto Muhammad Hendri Nuryadi, Muhammad Hendri Muhammad Nurtanto Muhammad Nuryatno Muhtarom, M. Mukhopadhyay, Tirtha Prasad Mutohhari, Farid Narmoatmojo, Winarno Nina Noor Fitrihana noventari, Widya Noventari NUR KHOLIFAH Nurrahman, Muhammad Pa, Bernard Jose Adrian Junio Ajilo Pinem, Sixdes Silvani Rahman, Hend Mubarak Abdul Rahmat Kurnia Rasid Yunus, Rasid Rawanoko, Endrise Septine Resi Sepsilia Elvera Reza Rey Naldi Rima Vien Permata Hartanto Rizky, Armando Rusyda, Sabila Fa'iz Sabrina, Anggela Safitri, Raya Gilang Salsalova, Andrea Samir, Octavianto Saputri, Ryna Ginanti Eka Ayu satya, Danang Septian Eko Rahmanto Setya Ratna Dianuri Sistya Rachmawati Slamet Riyanto Supianto Susi Dwi Mulyani Sutimin , Leo Agung Tiwuk Widiastuti Triana Rejekiningsih dkk Tuti, Dewi Setyas Utami, Aprilia Nur Wahyudin Noe, Wahyudin Wardani, Devina Kusuma Widoretno, Mey Ristanti Widya Noventari, Widya WINARNO Y Agus Bagus Budi N Yudi Ariana Yuli Adhani Zahra, Aulia Fatimatuz