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All Journal Jurnal Teknologi Perikanan dan Kelautan Jurnal Akuakultur Rawa Indonesia Maspari Journal JOURNAL OF COASTAL DEVELOPMENT Jurnal Perikanan dan Kelautan Berkala Perikanan Terubuk Maspari Journal Jurnal Pengabdian Kepada Masyarakat Sakai Sambayan Jurnal Perikanan dan Kelautan Journal of Aquatropica Asia Aquasains : Jurnal Ilmu Perikanan dan Sumberdaya Perairan e-Jurnal Rekayasa dan Teknologi Budidaya Perairan Jurnal Riset Akuakultur Scripta Biologica Journal of Aquaculture and Fish Health Jurnal Sains Teknologi Akuakultur Journal of Tropical Marine Science Jurnal Inovasi Pembangunan GEMBIRA (Pengabdian Kepada Masyarakat) Jurnal Pengabdian Fakultas Pertanian Universitas Lampung Jurnal Perikanan dan Kelautan Jurnal Perikanan JARI : Jurnal Akuakultur Rawa Indonesia
Siti Hudaidah
Department Of Fisheries And Marine Science, Faculty Of Agriculture, University Of Lampung, Jl. Prof. Sumantri Brojonegoro, Bandar Lampung, Lampung 35141, Indonesia
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Journal : Jurnal Riset Akuakultur

 1 
EVALUASI PENGGUNAAN LIMBAH PENDEDERAN IKAN KERAPU BEBEK (Cromileptes altivelis) DENGAN KONSENTRASI BERBEDA SEBAGAI MEDIA KULTUR Spirulina sp. SKALA MENENGAH Larasati, Ellen; Pertiwi, Ris Restu; Hudaidah, Siti; Putri, Berta; Alhafizoh, Fatimah; Alfionita, Wuni; Husna, Asmaul
Jurnal Riset Akuakultur Vol 20, No 2 (2025): Juni (2025)
Publisher : Politeknik Kelautan dan Perikanan Jembrana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/jra.20.2.2025.181-194

Abstract

Limbah pendederan ikan kerapu bebek (Cromileptes altivelis), kaya akan nitrogen (N) dan fosfor (P), berpotensi mencemari lingkungan apabila dibuang tanpa pengolahan. Penelitian ini bertujuan menentukan konsentrasi optimal limbah pendederan tersebut sebagai media kultur Spirulina sp. skala menengah. Limbah disaring (filter 25 µm) dan disterilkan menggunakan autoklaf (121°C, 15 menit, 1 atm) pada konsentrasi 10%, 15%, 20% dan 25%. Kultur dilakukan selama 9 hari dalam wadah fiberglass volume 15 L, diinokulasi dengan kepadatan awal 1 x 106 sel mL-1, diaerasi secara terus-menerus, dan diberikan pencahayaan. Rancangan percobaan yang digunakan adalah rancangan acak lengkap (RAL) dengan tiga ulangan untuk mengevaluasi laju pertumbuhan Spirulina sp., penurunan konsentrasi nitrat dan fosfat, serta parameter kualitas air (suhu, salinitas, pH, dan intensitas cahaya). Hasil menunjukkan bahwa perlakuan limbah 20% menghasilkan kepadatan tertinggi (6,43 x 106 sel m L-1) dan efisiensi penurunan konsentrasi nitrat sebesar 96,0% (dari 5,99 ± 0,13 mg L-1 menjadi 0,24 ± 0,05 mg L-1) dan penurunan fosfat sebesar 67,7% (dari 6,66 ± 0,34 mg L-1 menjadi 2,15 ± 0,32 mg L-1). Penelitian ini menunjukkan bahwa limbah pendederan C. altivelis yang disterilisasi efektif digunakan sebagai media kultur Spirulina sp. skala menengah, dengan konsentrasi 20% memberikan hasil pertumbuhan, efisiensi penyerapan nutrien, dan kestabilan kualitas air terbaik, sehingga berpotensi diterapkan sebagai strategi bioremediasi berkelanjutan dalam konsep akuakultur sirkular.Effluent from humpback grouper (Cromileptes altivelis) nursery operations is rich in nitrogen (N) and phosphorus (P), posing a risk of environmental pollution if discharged untreated. This study aimed to determine the optimal concentration of humpback grouper nursery effluent as a rearing medium for Spirulina sp. cultured at an intermediate scale. The effluent was filtered (25 µm) and sterilized using an autoclave (121°C, 15 minutes, 1 atm) at concentrations of 10%, 15%, 20%, and 25%. Spirulina sp. was cultured at an initial density of 1 x 106 cells mL-1 in 15-L fiberglass tanks that were continuously aerated and illuminated for 9 days.  A completely randomized design (CRD) with three replications was used to evaluate the growth rate of Spirulina sp., the reduction of nitrate and phosphate concentrations, and water quality parameters (temperature, salinity, pH, and light intensity). Results showed that the 20% wastewater produced the highest cell density (6.43 × 10⁶ cells mL-1) and achieved a nitrate concentration reduction efficiency of 96.0% (from 5.99 ± 0.13 mg L-1 to 0.24 ± 0.05 mg L-1) and a phosphate reduction of 67.7% (from 6.66 ± 0.34 mg L-1 to 2.15 ± 0.32 mg L-1). This study demonstrated that sterilized effluent from humpback grouper nursery can be used as the rearing medium for Spirulina sp. cultured at an intermediate scale, with a 20% concentration providing optimal growth, nutrient removal efficiency, and stable water quality, thereby supporting its potential use as a sustainable bioremediation and circular aquaculture strategy.
Co-Authors Abidin, Z Adetya Putri Anica Rahmawati Aditya Kusuma Nugroho Agung Prasetyo Agus Setyawan Agus Setyawan Agus Setyawan Agus Setyawan Agus Setyawan Ainul Kahfi Ajeng Angrum Ningsih Alfionita, Wuni Alhafizoh, Fatimah Almira Lahay Amin, Muhammad Khaliqul Andhika Bayu Saputra Andi Bimantara Anma Hari Kusuma Anma Hari Kusuma Anma Hari Kusuma, Anma Hari Arif Wibowo Arif, Mas Achmad Syamsul Asmaul Husna Azwar Ibrahim Berta Putri Berta Putri Berta Putri Berta Putri Chatammi Akbar Cindy Ria Nuari Cory Pravita Widaksi Dede Nur Abdul Halim Deny Sapto Chondro Utomo Dewi Retno Sari Dharta Mahardani Dina Tri Madya Ningsih Dio Vinski Aquardo Doni Putra Pradana Dwiki, Elba Ediwarman Ediwarman EFFENDI, Eko Ekadana Putra Sebayang eko efendi Eko Efendi Eko Effendi Elba Dwiki Elisdiana, Yeni Erna Rochana Fadhli Dzil Ikrom Febrinawati, Nanda Fidyandini, Hilma Putri Firdausi, Hilma Nahwa Firmansyah User Firsta Rahmasari Fredi Wintoko Gesty Ayu Akbaidar Henky Mayaguezz Henky Mayaguezz Henni Wijayanti Henni Wijayanti Maharani Henni Wijayanti Maharani Henny Wijayanti Henny Wijayanti Maharani Hermawan Fornando Hermawan Fornando, Hermawan Hilma Nahwa Firdausi Hilma Putri Fidyandini Indra Gumay Yudha Istikomah Istikomah Jariyah Endang Setiawati Jayawarsa, A.A. Ketut Joshua Sahat H Sitohang Kesuma, Widi Indra Lahay, Almira Larasati, Ellen Leonardo Bambang Diwi Dayanto Limin Santo Limin Santoso Limin Santoso Limin Santoso Limin Santoso Limin Santoso Luh Putu Ratna Sundari Mahrus Ali Mahrus Ali Mahrus Ali Margie Brite Mas Achmad Syamsul Arif Mas Tri Djoko Sunarno Maulid Wahid Yusup Maulidiyanti . Mayaguezz, Henky Moh Muhaemin Moh Muhaemin Moh Muhaemin Moh Muhaemin Moh. Muhaemin Moh. Muhaemin Moh. Muhaemin Muhammad Gilang Ramadhan Muhammad Khaliqul Amin Munti Sarida Nanda Febrinawati Naskuroh, Nurul Zikra Niken Puspita Sari Nindri Yarti Norma Valensi Putri Novita Panigoro Nuning Mahmudah Noor Nuron Nafsihi Pertiwi, Ris Restu PUJI LESTARI Ramadhan, Muhammad Gilang Rara Diantari Rara Diantari Reni Antika Rina Hesti Utami Rini Lian Agustina Rosdinar . Rosdinar ., Rosdinar Sanjaya, Achmad Santanumurti, Muhammad Browijoyo Santrika Khanza Septa Indarti Setiawan, Aqshal Dwi Sinaga, Edward Gracealdo Sinaga, Edward Gracelado Sudarmono - Sulvina . Sumino, Sumino Suparmono Suparmono Supono . Supono Supono Supono Supono Supriya, Supriya Susanti, Oktora Tari Putri Anggraini Tarsim - Tarsim - Tarsim Tarsim Tri Ayu Lestari Turovika, Yeti Barokah Utomo, Deny Sapto C Wardiyanto . Wardiyanto Wardiyanto, Wardiyanto Yeni Elisdiana Yudha Adiputra Yudha Trinoegraha Adiputra Yudha Trinoegraha Adiputra Yudha Trinugraha Adiputra Yudha Trinugraha Adiputra Yuriska Selviani Yusup, Maulid Wahid Zulfikar Zafeskan Ronapati