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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.
PEMANFAATAN MAKANAN DAN PERTUMBUHAN IKAN BANDENG (Chanos chanos) YANG DIINTRODUKSI DI WADUK IR.H. DJUANDA, JAWA BARAT Triyanto Triyanto; Mohammad Mukhlis Kamal; Niken TM. Pratiwi
LIMNOTEK Perairan Darat Tropis di Indonesia Vol. 21 No. 1 (2014)
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/limnotek.2014.13275

Abstract

Penebaran ikan bandeng (Chanos chanos) di waduk Ir. H. Djuanda Reservoir bertujuan untuk memanfaatkan makanan alami seperti plankton yang melimpah di perairan waduk yang subur. Penelitian dilakukan pada bulan Desember 2009-Februari 2010 pada empat stasiun yang mewakili kondisi waduk. Pengumpulan contoh ikan dilakukan setiap 10 hari dengan jaring insang percobaan, * mata jaring 1-2,5. Panjang jaring adalah 35 m dan tinggi 2 m. Penelitian bertujuan untuk mengevaluasi keberhasilan penebaran bandeng didasarkan pada konsumsi makanan dan pertumbuhan ikan. Hasil penelitian menunjukkan bahwa ikan bandeng mampu memanfaatkan plankton yang tersedia sebagai makanan. Berdasarkan perhitungan indeks Preponderace, makanan utama ikan bandeng terdiri dari fitoplankton (35,256,42%) dan zooplankton (12,22-42,8%). Dominasi makanan dari kelompok fitoplankton adalah Cynophyceae (10,05-31,12%) dan dari zooplankton adalah Copepoda (3,33-27,79%). Pertumbuhan ikan bandeng mencapai 0,26-1,1% dengan laju pertambahan panjang harian mencapai 0,2-2,1 mm/hari. Parameter pertumbuhan ikan bandeng seperti panjang L 8 adalah 34,7 cm dan koefisien pertumbuhan (K) adalah 4,2/tahun.
Co-Authors ACHMAD FAHRUDIN Achmad Fahrudin Achmad Fahrudin Achmad Fahrudin Achmad Fahrudin Achmad Fahrudin Adi Spy Supriyadi Agoes Mardiono Jacoeb Agus Alim Hakim Agus Atmadipoera Agus Oman Sudrajat Ahmad, Aditiyawan Ahyar Pulungan Aisyah Qurota A’yun ALI MASHAR Ali Mashar Ali Mashar Ali Suman Ali Suman Ali Suman Aliati Iswantari Ansori, Ma'mun Apriana Vinasyiam Ariane Koch-Larrouy Arif Miftahul Aziz, Arif Miftahul Arif Wibowo Ario Damar Arlita, Kriswidya Aulia Nur Larasati Ayesha Hafizh Ayu, Inna Puspa Beatrix M. Rehatta Beginer Subhan Boimin Booth, Hollie Bosman, Ofan Cahyanti, Wahyulia Dade Jubaedah Dade Jubaedah Darmawan, Aldo Dawi, Mario Raja Sani Deni Irawan, Deni Deni Radona, Deni Dewi SLKT DIKRURAHMAN DIKRURAHMAN Dudi Muhammad Wildan Dwi Yuni Wulandari DYAH WIDYA SARI Efin Muttaqin Eko Prianto, Eko Elok Faiqoh Enan M Adiwilaga Endang Juniardi Endi Setiadi Kartamihardja Endi Setiadi Kartamihardja Eristyana Yunindio Sari ERNIK YULIANA Etty Riani Fazril Saputra Fera Permata Putri, Fera Permata Firja Hasanah Nabillah FORCEP RIO INDARYANTO Forcep Rio Indaryanto G Yulianto Gadis Sri Haryani Gadis Sri Haryani Gatot Yulianto Gatot Yulianto Gilang Rusrita Aida Grin Tommy Panggabean Harahap, Wini Aafini J Haris Setiawan Helmy Akbar Hendrik Sombo Hollie Booth I Nyoman Suyasa Ibnu Budiman Iis Diatin Iman Wahyudin Irin Iriana Kusmini, Irin Iriana Ismudi Muchsin Ismudi Muchsin Ismudi Muchsin Iwan Hasri Iwan Hasri Jabbar, Meuthia Aula Jakaria Jakaria Jifi Abu Ammar Jojo Subagja Kadarwan Soewardi Karila Dyastari Kasturi Ramdayani Kiagus Abdul Azis Kristanto, Anang Hari Kurniawan Kurniawan La Ode Syahlan S Sagala Larashati, Sekar Lisa Ipambonj Luky Adrianto Luky Adrianto Mala Nurilmala Mas Davino Sayaza Mennofatria Boer Mia Setiawati Mirza Dikari Kusrini Muhamad Fatah Nashrullah Muhammad Arif Nasution Muhammad Nizar Muhammad Nizar Muhammad Nizar Mu’amar Abdan NEVIATY PUTRI ZAMANI Niken TM. Pratiwi Niken Tunjung Murti Pratiwi Nina Nurmalia Dewi Nugroho, Dwiyoga Nurhalis Wahidin NURLISA A. BUTET Nurlisa Alias Butet Nurseptiani, Sifa Oktavia, Nia Otong Zenal Arifin Prakoso, Vitas Atmadi Pratiwi, Niken TM. Prihatiningsih Prihatiningsih Qonita Sinatrya Radityani, Fitri Afina Rahayu, Endah Sri Rahmat Kurnia Ralph Mana RETNO PUJI ASTUTI RIDWAN AFFANDI RIDWAN AFFANDI Ridwan Affandi Ridwan Affandi Ridwan Affandi Rika Astuti Risa Tiuria Riza, Nurasiah Rizkhy Ananda Wida Rachman Rizsa Mustika Pertiwi Robin Bahari Rohmah, Lailia Nur Ronny I. Wahju Rudhy Gustiano Rumagia, Faizal Sagala, La Ode Syahlan S SAHIDAN MUHLIS Sakina, Edna Samir, Octavianto Shinta Pardede SHINTA TRILESTARI PARDEDE Sifa Nurseptiani Sigid Hariyadi Sigid Hariyadi Simon, Okta Singgih Afifa Putra Siti Rahmawati Stuart J Campbell Sukmaraharja Tarigan Sulistiono Sulistiono Sulistiono Sulistiono Sulistiono SULISTIONO SULISTIONO Sulistiono Sulistiono Surjanto, Didiek Syamsiar, Syamsiar Syarifah Nurdawati Syed Sartaj Alam T Tarsidin Taryono Taryono Taryono Taryono Taryono, Taryono Tatag Budiardi Thomas Hidayat Tjahjo Tri Hartono Triyanto Triyanto Triyanto Trie Triyanto Triyanto Triyanto Triyanto Triyanto, Triyanto Utama, Darma Vergia Wenda Mulia Widoretno, Mey Ristanti Wildan, Dudi Muhammad Y. Rahmah Yanti Sinaga Yonvitner Yulia Fitrianingsih Yunizar Ernawati Yunizar Ernawati Yusli Wardiatno Yuspita, Ni Luh Eta Zairion Zulfa Huriah