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All Journal Jurnal Penelitian Sains Jurnal Sumberdaya Akuatik Indopasifik
Septimesy, Annisa
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Agriculture, Biological Sciences & Forestry Chemistry Earth & Planetary Sciences Environmental Science Mathematics Physics

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Keanekaragaman Jenis Ikan Sidat (Anguilla spp.) di Provinsi Bali Septiana, Dwi Rizki; Suryati, Ni Komang; Septimesy, Annisa; Ningsih, Ellis Nurjuliasti; Pamungkas, Yanu P; Muthmainnah, Dina; Fauziyah, Fauziyah
Jurnal Penelitian Sains Vol 27, No 2 (2025)
Publisher : Faculty of Mathtmatics and Natural Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56064/jps.v27i2.1165

Abstract

Ikan sidat (Anguilla spp.) merupakan ikan katadromus yang memiliki siklus hidup kompleks dari laut hingga perairan darat, dengan tahapan perkembangan dari telur yang menetas menjadi leptocephalus, glass eels, elvers, yellow eels, hingga silver eels. Penelitian ini bertujuan untuk mengidentifikasi keanekaragaman jenis berdasarkan morfologi, morfometrik, dan analisis genetik ikan sidat di Provinsi Bali. Identifikasi morfologi dilakukan dengan karakterisasi ano-dorsal fin, dan corak kulit, sedangkan uji morfometrik melibatkan pengukuran jarak sirip anal dan dorsal. Berdasarkan analisis morfologi, morfometrik, dan genetika penelitian ini berhasil mengidentifikasi tiga spesies utama ikan sidat yang ditemukan di perairan Provinsi Bali yaitu A. marmorata (58%), A. bicolor bicolor (40%), dan A. interioris (2%), dengan distribusi yang berbeda berdasarkan lokasi dan kondisi habitat. Analisis genetik menunjukkan bahwa A. marmorata memiliki tingkat homologi tinggi, A. interioris lebih jauh hubungannya tetapi masih terkait, sementara A. bicolor bicolor memiliki variasi genetik lebih beragam, memberikan dasar penting bagi pengelolaan dan konservasi sidat di Bali.
Peningkatan Efisiensi Pakan dan Performa Pertumbuhan Ikan Betok (Anabas testudineus) yang Dipelihara pada Periode Pemuasaan yang Berbeda Fitrani, Mirna; Amin, Mohamad; Rismoni, Indah; Wijayati, Marini; Septimesy, Annisa; Mulyani, Yenni Sri; Mukti, Retno Cahya
Jurnal Sumberdaya Akuatik Indopasifik Vol 9 No 3 (2025): Agustus
Publisher : Fakultas Perikanan dan Ilmu Kelautan, Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46252/jsai-fpik-unipa.2025.Vol.9.No.3.478

Abstract

Fish feed is known to account for 60-70% of total aquaculture costs, posing a significant challenge to farmers. To address the issue, this study explored the effectiveness of periodic starvation in improving feed efficiency and growth performance of climbing perch while reducing the cost of purchasing feed. The method used was a completely randomized design (CRD) analyzed using ANOVA. Four treatments were applied with three replicates each. The treatments consisted of P0 (no fasting), P1 (one day of fasting followed by one day of feeding), P2 (one day of fasting and two days of feeding), and P3 (one day of fasting and three days of feeding). The parameters observed included feed efficiency, growth in length and absolute weight, and fish survival rates. The results showed that periodic starvation significantly impacted the absolute body weight growth and feed efficiency (P<0.05). However, no effect was observed on the survival rates and absolute length growth. Among the treatments, P1 showed the best results, with feed efficiency of 21.87%, length growth of 0.23 cm, weight growth of 0.22 g, and survival rate of 100%. In conclusion, this study found that periodic starvation combined with feeding could significantly improve fish feed use efficiency and save fish farmers' costs.
Co-Authors Dina Muthmainnah Mirna Fitrani Mohamad Amin Mulyani, Yenni Sri Ni Komang Suryati, Ni Komang Ningsih, Ellis Nurjuliasti Pamungkas, Yanu P Retno Cahya Mukti Rismoni, Indah RR. Ella Evrita Hestiandari Septiana, Dwi Rizki Wijayati, Marini