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All Journal Journal of Aquatropica Asia Jurnal Kelautan Tropis Aquasains : Jurnal Ilmu Perikanan dan Sumberdaya Perairan e-Jurnal Rekayasa dan Teknologi Budidaya Perairan Barakuda 45 Jurnal KALANDRA Jurnal Pengabdian Fakultas Pertanian Universitas Lampung Jurnal Perikanan dan Kelautan
Agus Setyawan
Jurusan Budidaya Perairan Universitas Lampung Alamat : Jurusan Budidaya Perairan, Fakultas Pertanian, Universitas Lampung Jl. Soemantri Brojonegoro Gedong Meneng No. 1 Bandar Lampung 35145
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Journal : Jurnal Perikanan dan Kelautan

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Applications of Sedimentation Bank in Tidal Aquaponic Systems in Reducing NH3 in Cultivation Tilapia (Oreochromis niloticus) Hotlan Albert Adventus Sitompul; Eko Efendi; Agus Setyawan
Jurnal Perikanan dan Kelautan Vol. 26 No. 2 (2021): June
Publisher : Faculty of Fisheries and Marine, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.26.2.131-136

Abstract

The success of a culture depends on the quantity and quality of water used in fish culture without water exchange, the concentration of aquaculture waste such as ammonia (NH3) will increase very rapidly and is toxic to the cultivated organism. One of the innovations applied in fish farming is integrating plants through an aquaponics system. This study aims to determine the effect of using a settling tub in reducing ammonia waste (NH3) and growth in tilapia aquaculture using an aquaponic tidal system. The size of the initial tilapia seeds used is 3-4 cm. There are two treatments used, without settling tub (A) and addition of settling tub (B) with three replications. However, the results showed no significant differences (P>0.05) between treatments for all parameters observed. It is necessary to carry out further research on different fish and plants to see the optimization in reducing ammonia waste (NH3).
Isolation and Screening of Amylolytic and Proteolytic Thermophilic Bacteria from Way Panas Hot Spring, Kalianda, South Lampung Laras Mahestri; Esti Harpeni; Agus Setyawan
Jurnal Perikanan dan Kelautan Vol. 26 No. 3 (2021): October
Publisher : Faculty of Fisheries and Marine, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.26.3.161-168

Abstract

Amylolytic and proteolitic activity from thermophilic bacteria have been observed from the Way Panas hot springs, Kalianda, South Lampung. This study aims to isolate and screen amylase and protease enzyme-producing thermophilic bacteria and their potential in fisheries. A total of 8 bacterial isolates were examined from the Way Panas hot spring, Kalianda. Each was cultured on selective medium for amylase and protease production. The results showed that 4 bacterial isolates were able to hydrolyze starch (A.WP.50.1, A.WP.50.1, A.WP.50.3, and A.WP.50.4) were able hydrolyze starch and no bacterial isolates had hydrolysis activity against protein. The highest activity of amylolitic was achieved by A.WP.50.4 bacteria isolate. Based on the phenotype, biochemistry assay, and 16s rDNA sequencing, the A.WP.50.4 bacteria isolate have high similarity and identified as Bacillus cereus.
Co-Authors Ahmad Fauzy Arumning Tias Fauziah Chatammi Akbar Deny Sapto C.U Deny Sapto Chondro Utomo Eko Efendi Ervia Yudiati Esti Harpeni Esti Harpeni Herman Apriyanto Hilma Nahwa Firdausi Hilma Putri Fidyandini Hilma Putri Fidyandini Hotlan Albert Adventus Sitompul Insafitri, I Irwani Irwani Jayawarsa, A.A. Ketut Joshua Sahat H Sitohang Laras Mahestri Limin Santoso Mega Cania Munti Sarida Nidya Kartini Ria Hindra Sari Rinda Aryani Putri Septi Diana Sari Siti Hudaidah Suparmono - Supono Supono Supono Supono Tarsim - Wardiyanto - Wardiyato Wardiyato Yudha Trinoegraha Adiputra Yudha Trinoegraha Adiputra Zevinna Kurnia W