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All Journal JURNAL GALUNG TROPIKA JURNAL SAINS DAN TEKNOLOGI PERIKANAN (JIKAN) Journal of Aquaculture Science
Rizky Kusma Pratiwi
Universitas Brawijaya
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Engineering Environmental Science Social Sciences

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Efforts to Reduce Organic Matter In Shrimp Aquaculture Wastewater With Various Bacterial Consortium Trademarks Diana Arfiati; Shofiyatul lailiyah; Rizky Kusma Pratiwi; Dini Alvateha; Fidhiyah Dita Dahria Aisyah; Karina Farkha Dina
Journal of Aquaculture Science Vol 6 No 1IS (1): Vol 6 Issue Spesial 2021 Journal of Aquaculture Science
Publisher : Airlangga University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31093/joas.v6i1IS.162

Abstract

Shrimp aquaculture wastewater after the end of the rearing period has a high total organic matter (TOM) content of up to 87.74 mg/L. If the wastewater is disposed of directly without any efforts to reduce or treatment, it will disturb public waters ecosystem because of the high organic matter. The aim of this study was to determine the rate of reduce of organic matter in pond aquaculture waste. The study was carried out in January 2021. Pond wastewater samples were taken from the Tambak at the end of the maintenance period (120 days of maintenance). The trademarks of the bacterial consortium are EM4, Bio HS, BIO Prisma, Starbio plus, BIO2000, and Biolet. The experimental research was arranged in a completely randomized design with 6 treatments and 4 replications. Each treatment was filled with 2 liters of wastewater plus 6 ml of a liquid bacterial consortium. As for the solid bacterial consortium, 1 gram/L was added. Measurements of total organic matter, temperature, pH, dissolved oxygen, salinity and carbon dioxide were carried out every 24 hours for 72 hours of observation. The results showed that during 72 hours of immersion the highest percent reduction in organic matter was in treatment E (BIO 2000) of 95% (87.74 mg/L to 4.11 mg/L). The lowest percentage decrease was in treatment D (Starbio plus) of 83.4% (87.74 mg/L to 14.54 mg/L). However, in general 6 types of bacterial consortium trademarks can degrade organic matter. The levels of temperature, pH, dissolved oxygen and salinity are in optimum conditions, while carbon dioxide exceeds the threshold caused by the high activity of overhauling organic matter by bacteria. The conclusion was obtained that the trademark of the bacterial consortium BIO2000 was the most effective in reducing organic matter for 72 hours. Keyword : Shirmp wastewater, Tambak, Bioremediation, Organic Matter, Microorganis
Evaluasi Komparatif Penggunaan Tepung Cacing dan Tepung Ikan sebagai Sumber Bahan Baku Protein Pakan terhadap Performa Pertumbuhan Ikan Lele Andi Masriah; Rizky Kusma Pratiwi; Vina Nur Nadiro; Muhamad Dwi Cahya; Nidya Aufa Rosie Hariyono; Bela Safira; Easty Khairunnisa; Shierleen Zahra Badzlin
Jurnal Galung Tropika Vol 14 No 1 (2025)
Publisher : Fakultas Pertanian, Peternakan dan Perikanan Universitas Muhammadiyah Parepare

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31850/jgt.v14i1.1372

Abstract

Fishmeal is the primary raw material in fish feed formulations as a source of protein raw materials. Its limited availability and fluctuating prices encourage using alternative protein sources, one of which is worm meal. This study compare the use of fish meal and worm meal in catfish (Clarias sp.) feed the hepatosomatic index (HSI), blood glucose levels, and gastric emptying rate. The research was conducted using an experimental method with two treatments: fishmeal-based and worm meal-based. HSI data obtained were analyzed by independent-sample T-test analysis, while data on blood glucose levels and gastric emptying rate were analyzed descriptively. The results showed no significant difference (p>0.05) between treatments on hepatosomatic index. Fluctuations in blood glucose levels are also in line with the rate of gastric emptying, which is not too different between treatments. This study showed that worm meal has the potential to be used as an alternative to fish meal in catfish feed without causing physiological changes.
Effectiveness of Using Bioball and Pumice Biofiltration on Water Quality in Recirculating Tilapia Cultivation System Rizky Kusma Pratiwi; Andi Masriah; Zakiyyah Nur Inayah; Vina Nur Nadiro; Vika Maulidiyah; Muhamad Dwi Cahya; Admiral Amin Supit; Muhammad Zidny Sahlan; Beby Adi Surya Saputra; Stevanus Bondan Wijaya
Jurnal Sains dan Teknologi Perikanan Vol 6 No 1 (2026): APRIL
Publisher : Fisheries Science Study Program, Faculty of Science and Technology, Muhammadiyah University of Sidenreng Rappang.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55678/jikan.v6i1.2749

Abstract

The use of simple filter media can reduce organic waste materials in Nile tilapia aquaculture systems. The performance of biofilters is strongly influenced by the type of media used, depending on their characteristics in supporting biofilm formation. This study aimed to analyze the effectiveness of bioball and pumice as biofilter media on water quality and the growth performance of Nile tilapia (Oreochromis niloticus) in a recirculating aquaculture system. The research was conducted from October to November 2024 at the Integrated Farming Laboratory, PSDKU Universitas Brawijaya Kediri, using an experimental method. Two treatments were applied, namely bioball (P1) and pumice (P2), with observations on water quality parameters including temperature, pH, dissolved oxygen (DO), Total Organic Matter (TOM), alkalinity, ammonia, nitrate, and phosphate, as well as fish growth parameters including absolute growth, specific growth rate (SGR), and survival rate (SR). Data were analyzed using the Independent Sample T-Test, while alkalinity, absolute growth, and survival rate were analyzed using the non-parametric Mann–Whitney U test. The results showed that the use of biofilter media did not have a significant effect (p>0.05) on all water quality parameters, but showed a significant difference in absolute growth. Pumice media demonstrated better performance in increasing DO (5.6–10.3 mg/L) and reducing organic matter with a removal efficiency of 33–70% and ammonia up to 94%. In terms of growth performance, the pumice treatment produced higher values of absolute growth (2.52 ± 0.26 g), SGR (2.53 ± 0.18%/day), and SR (86.7 ± 4.7%) compared to bioball. Therefore, pumice has the potential to be recommended as a promising biofilter medium for improving water quality and growth performance of Nile tilapia in recirculating aquaculture systems.
Co-Authors Admiral Amin Supit Andi Masriah Beby Adi Surya Saputra Bela Safira Diana Arfiati Dina, Karina Farkha Dini Alvateha Easty Khairunnisa Fidhiyah Dita Dahria Aisyah Muhamad Dwi Cahya Muhammad Zidny Sahlan Nidya Aufa Rosie Hariyono Shierleen Zahra Badzlin Shofiyatul lailiyah Stevanus Bondan Wijaya Vika Maulidiyah Vina Nur Nadiro Zakiyyah Nur Inayah