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All Journal Biogenesis: Jurnal Ilmiah Biologi Research Journal of Life Science Jurnal Sains Teknologi dan Lingkungan (JSTL) Jurnal Penelitian Pendidikan IPA (JPPIPA) Jurnal Biologi Tropis Jurnal Pengabdian Magister Pendidikan IPA GANEC SWARA Jurnal Pengabdian Kepada Masyarakat MEMBANGUN NEGERI Bantenese Jurnal Pengabdian Masyarakat Jurnal Gema Ngabdi Jurnal Lemuru : Jurnal Ilmu Perikanan dan Kelautan Indonesia Jurnal Ilmiah Profesi Pendidikan Jurnal Abdi Insani BERNAS: Jurnal Pengabdian Kepada Masyarakat Arwana: Jurnal Ilmiah Program Studi Perairan Jurnal Pengabdian Perikanan Indonesia Jurnal Media Akuakultur Indonesia TEKIBA : Jurnal Teknologi dan Pengabdian Masyarakat Penamas: Journal of Community Service INCOME: Indonesian Journal of Community Service and Engagement Journal of Fish Health Jurnal Pepadu Journal of Fish Nutrition Depik Jurnal Ilmu-Ilmu Perairan, Pesisir dan Perikanan Carmin: Journal of Community Service JPMP Depik Jurnal Ilmu-Ilmu Perairan, Pesisir, dan Perikanan Jurnal Perikanan Alamtana Jurnal Wicara Desa
Rangga Idris Affandi
Universitas Mataram
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The Effect of Exposure to Polystyrene Microplastics in Feed on the Growth of Tilapia (Oreochromis niloticus) Setyono, Bagus Dwi Hari; Saomadia, Baiq Triska; Affandi, Rangga Idris
Jurnal Penelitian Pendidikan IPA Vol 10 No 12 (2024): December
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v10i12.7924

Abstract

Indonesia is a country that is rich in natural resources and has various potentials that can be developed, especially in the field of aquaculture. Aquaculture activity that is often carried out by Indonesian people is the cultivation of tilapia (Oreochromis niloticus). Apart from that, Indonesia is known as the second largest contributor of plastic waste in the world after China. The scattered plastic waste will be degraded into microplastics which can then spread to tilapia farming locations. The aim of this research is to determine the effect of exposure to polystyrene microplastics given to tilapia feed on their growth. The research method used was a completely randomized design with 4 treatments and 3 replications with doses P1 = 0 mg/0.75 g feed (control), P2 = 0.01 mg/0.75 g feed, P3 = 0.1 mg/ 0.75 g feed, and P4 = 1 mg/0.75 g feed. The parameters tested were absolute weight growth, absolute length growth, spesific growth rate (SGR), feed conversion ratio (FCR) and water quality. The results obtained were that the effect of exposure to polystyrene microplastics in feed was significantly different on absolute weight growth, SGR, and FCR in tilapia (Oreochromis niloticus), but not significantly different on absolute length growth.
The Effect of Exposure to Microplastic Polystyrene (PS) in Feed on the Haematology of Tilapia (Oreochromis niloticus) Saomadia, Baiq Triska; Setyono, Bagus Dwi Hari; Affandi, Rangga Idris
Journal of Fish Health Vol. 4 No. 1 (2024): Journal of Fish Health
Publisher : Aquaculture Department, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jfh.v4i1.4889

Abstract

Indonesia is one of the countries that has the largest archipelago area in the world. Indonesia's vast territorial waters also present major challenges in terms of environmental management. One problem that is getting worse is plastic waste. Over time, plastic waste scattered in the environment will degrade into small particles which are usually called microplastics. Tilapia (Oreochromis niloticus) is one of the economically and ecologically important freshwater fish species. This fish is not only an important source of protein for humans, but also plays a role in the balance of the marine ecosystem. Exposure to microplastics in fish can occur in various ways, including through contaminated feed. The aim of this study was to determine the effect of exposure to polystyrene (PS) microplastics in feed on the blood profile of tilapia (Oreochromis niloticus). The treatments given were P1 without exposure to microplastics, P2 with 0.01 mg/0.75 g, P3 with 0.1 mg/0.75 g, and P4 with 1 mg/0.75 g. The parameters measured in the study were blood profiles, including hematocrit, hemoglobin, erythrocytes, leukocytes, leukocyte differential and survival rate. The results obtained in this study were that hematocrit levels and survival rates had an effect on fish growth, while erythrocyte, leukocyte and leukocyte differential values had no significant effect on the blood profile of Nile fish exposed to polystyrene microplastics.
The Abundance of Bacteria Associated with Intertidal Seaweeds Sargassum sp. and Kappaphycus alvarezii in Ekas Bay Muahiddah, Nuri; Cokrowati, Nunik; Affandi, Rangga Idris; Junaidi, Muhammad; Sumsanto, Muhammad; Dwiyanti, Septiana; Asri, Yuliana; Lumbessy, Salnida Yuniarti
Journal of Fish Health Vol. 4 No. 1 (2024): Journal of Fish Health
Publisher : Aquaculture Department, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jfh.v4i1.4898

Abstract

This study investigates the abundance and diversity of bacteria associated with two intertidal seaweeds, Sargassum sp. and Kappaphycus alvarezii, in Ekas Bay. Intertidal zones are dynamic environments where seaweeds and their associated microbial communities play crucial roles in ecological processes. Seaweeds host a variety of bacteria that contribute to nutrient cycling, seaweed health, and overall ecosystem function. The primary variable measured in this study was the bacterial abundance, expressed as Colony Forming Units per milliliter (CFU/mL). The conclusion of these findings has positive implications for the environmental health around the floating raft, base stakes, Sargassum sp. and Kappaphycus alverazii. The absence of harmful bacteria supports the sustainability of aquatic ecosystems and can provide positive benefits for the species inhabiting those areas.
Natural Feed Nitzschia sp. Culture on Laboratory Scale Susianti, Lena; Affandi, Rangga Idris
Journal of Fish Health Vol. 4 No. 2 (2024): Journal of Fish Health
Publisher : Aquaculture Department, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jfh.v4i2.5515

Abstract

Natural feed is fish feed that has the form of microscopic organisms found in waters. Commonly used natural feeds are phytoplankton, zooplankton, protozoa, microcrustaceans, microscopic invertebrates, and others. The need for natural feed is growing in line with the increasing fisheries cultivation efforts. Phytoplankton has a very important role in waters, its ecological function as a primary producer and the beginning of the food chain causes phytoplankton to often be used as a measure of the fertility of waters. One of the phytoplankton that is abundant in waters because of its ability to survive even in extreme conditions and has a fat content is Nitzschia sp., a member of the Bacillariophyceae class. Nitzschia sp. plays an important role as a primary producer and is widely used as natural feed for marine organism larvae such as crustaceans, bivalves, and fish. The purpose of this study was to determine the laboratory-scale Nitzschia sp. natural feed culture technique to support cultivation activities. This research was conducted from March to April 2024 at the Marine Aquaculture Center (BPBL) Lombok, West Sekotong, West Lombok Regency, West Nusa Tenggara. The research methods used are descriptive methods and field observations (surveys). The results that the laboratory scale Nitzschia sp. natural feed culture technique includes equipment sterilization activities, culture preparation, seed distribution, density calculation and harvesting. Factors that affect the growth of Nitzschia sp. are culture media that are free from contamination, initial stocking density, light intensity of 2000-5000 Lux, water quality (pH, salinity, and temperature).
Effectiveness of Octopus (Octopus sp.) Ink Exctract on the Growth of Catfish (Clarias sp.) Infected with Aeromonas hydrophila Saputra, Marta Ade; Scabra, Andre Rachmat; Affandi, Rangga Idris
Journal of Fish Health Vol. 5 No. 1 (2025): Journal of Fish Health
Publisher : Aquaculture Department, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jfh.v5i1.6102

Abstract

One material that can be used to improve feed quality is octopus ink. Octopus ink can serve as an alternative nutrient source to optimize catfish growth. Ink produced by cephalopods such as squid, octopus, and cuttlefish contains various components, including fat, protein, ash, and carbohydrates. The aim of this research is to determine the effect of administering octopus ink extract (Octopus sp.) on the growth of catfish (Clarias sp.) infected with Aeromonas hydrophila bacteria. The method used in this research was experimental, involving five treatments with three replications: treatment 1 (Control/P1), treatment 2/P2 (40 ml/kg), treatment 3/P3 (80 ml/kg), treatment 4/P4 (120 ml/kg), and treatment 5/P5 (160 ml/kg). The research steps included octopus ink extraction, a Lethal Concentration 50 (LC50) test, preparation of tools and materials, supplementation of octopus ink extract in feed, application of test treatments, challenge tests with Aeromonas hydrophila, and maintenance. The results of this research showed that treatment 5 (160 ml/kg) yielded the best outcomes in growth parameters, including an absolute weight of 1.26 grams, a specific growth rate of 0.57%/day, a feed convertion ratio (FCR) of 1.66, and a survival rate of 90%.
Efficiency of Using Kappa-Carrageenan as an Immunostimulant Agent in the Non-Specific Immune System of Vannamei (Litopenaeus vannamei) Infected with AHPND (Acute Hepatopancreatic Necrosis Disease) Azhar, Fariq; Scabra, Andre Rachmat; Muahiddah, Nuri; Affandi, Rangga Idris
Journal of Fish Health Vol. 5 No. 1 (2025): Journal of Fish Health
Publisher : Aquaculture Department, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jfh.v5i1.6358

Abstract

Vibrio parahaemolyticus is one of the bacteria that can attack whiteleg shrimp and cause Acute Hepatopancreatic Necrosis Disease (AHPND) or Early Mortality Syndrome (EMS) in shrimp. One alternative that can be used is the use of seaweed-based immunostimulants, namely k-carrageenan. The purpose of this study was to evaluate the effectiveness of k-carrageenan mixed in feed with different doses on increasing the immune system of whiteleg shrimp infected with AHPND. This study was conducted for 60 days with an experimental method in the form of a Completely Randomized Design (CRD) consisting of 5 treatments and 3 replications, namely, P1 (Positive Control): Commercial Feed + Vibrio parahaemolyticus Infection; P2 (Negative Control): Commercial Feed + 0.9% NaCl Infection; P3: Commercial Feed + Kappa-carrageenan 8 g / kg + Vibrio parahaemolyticus Infection; P4: Commercial Feed + Kappa-carrageenan 10 g/kg + Vibrio parahaemolyticus Infection; P5: Commercial Feed + Kappa-carrageenan 12 g/kg + Vibrio parahaemolyticus Infection. The results of this study indicate that the addition of 12 g/kg of k-carrageenan to the feed affects the survival rate and immune system of whiteleg shrimp infected with Vibrio parahaemolyticus.
Optimization of Hatchery Techniques to Enhance Larval Survival and Business Feasibility of Guppy (Poecilia reticulata) Setyono, Bagus Dwi Hari; Ula, Nurtia Nikmatul; Affandi, Rangga Idris
Journal of Fish Health Vol. 5 No. 2 (2025): Journal of Fish Health
Publisher : Aquaculture Department, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jfh.v5i2.7093

Abstract

Optimizing hatchery techniques for guppy (Poecilia reticulata) production is essential for improving reproductive efficiency and economic viability in small-scale ornamental aquaculture. This study evaluated the effectiveness of a simplified spawning system using sterilized aquaria (40×60×40 cm) with aeration and aquatic vegetation to create a semi-natural environment. Broodstock selection based on gonadal maturity and a male-to-female ratio of 2:4 resulted in high spawning success, with courtship behavior observed by day three. A staged feeding strategy—infusoria and egg yolk (days 1–3), Artemia nauplii (days 4–10), and Tubifex (days 11–21)—supported consistent larval growth from 0.5 cm to 1.6 cm over three weeks. Larval survival reached 91.1%, with 162 of 168 fry surviving by day 21. Stable water quality parameters (24–26°C, 7.6–7.9 mg/L dissolved oxygen, pH 6.7–7.1) were maintained through regular siphoning and water renewal. Economic analysis indicated system feasibility, with a production cost of IDR 1,369,250, revenue of IDR 1,620,000, and net profit of IDR 250,750. The benefit-cost ratio (R/C) was 1.18, the break-even point was achieved at 136.93 fry, and the payback period was 17.7 months. These findings highlight the biological and financial viability of low-cost guppy hatchery systems suitable for rural aquaculture settings. Future research should focus on scaling potential, feed alternatives, and digital monitoring to improve system sustainability and profitability.
Climate-Resilient Biofloc Aquaculture: Energy Efficiency, System Robustness, and Operational Adaptations under Changing Environmental Conditions (2020–2025) Setyono, Bagus Dwi Hari; Abidin, Zaenal; Affandi, Rangga Idris
Journal of Fish Health Vol. 5 No. 4 (2025): Journal of Fish Health
Publisher : Aquaculture Department, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jfh.v5i4.8259

Abstract

Climate change poses a significant threat to the sustainability of global aquaculture, including biofloc-based aquaculture systems (BFT). While BFT improves nutrient use efficiency and reduces water consumption, energy efficiency remains a key challenge, especially in terms of energy intensity and oxygen transfer (OTE/SOTE). This study conducts a systematic literature review (SLR) using the PRISMA 2020 method, focusing on energy efficiency in tilapia cultivation with BFT and adaptation strategies to climate variability. Key findings emphasize the importance of aeration, design optimization, and C/N management in minimizing energy consumption without compromising production. Additionally, integrating technologies like IoT/AI for adaptive DO control shows great potential in reducing energy intensity. This research contributes a systematic framework that links energy metrics with aeration design and operational adaptation strategies, offering guidance for developing more efficient and climate-resilient BFT systems. The study also recommends implementing renewable energy and smart water quality monitoring technologies to enhance aquaculture sustainability.
Evaluation of Alginate Use as an Immunostimulant in Litopenaeus vannamei Shrimp Aquaculture (Review) Muahiddah, Nuri; Effendi, Irzal; Supriyono, Eddy; Affandi, Rangga Idris
Journal of Fish Health Vol. 5 No. 4 (2025): Journal of Fish Health
Publisher : Aquaculture Department, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jfh.v5i4.8402

Abstract

The Pacific white shrimp (Litopenaeus vannamei) is one of the most important species in global aquaculture but remains highly vulnerable to bacterial, viral, and environmental stressors. Conventional reliance on antibiotics and chemicals has raised concerns over resistance and sustainability, underscoring the need for eco-friendly alternatives. Alginate, a natural polysaccharide extracted from brown seaweeds such as Sargassum, has emerged as a promising immunostimulant and functional feed additive. Experimental studies show that alginate supplementation enhances non-specific immune responses, including total haemocyte count, phenoloxidase, superoxide dismutase, phagocytic activity, and total plasma protein. At the molecular level, alginate upregulates immune-related genes (e.g., Toll, LGBP, proPO), resulting in higher resistance against Vibrio spp. and White Spot Syndrome Virus (WSSV). In addition, low molecular weight sodium alginate improves antioxidant activity and stress tolerance under cadmium exposure, while dietary supplementation supports growth performance and feed utilization. From a sustainability perspective, converting Sargassum biomass into alginate aligns with circular economy principles by transforming an abundant, underutilized seaweed into high-value aquafeed additives. This reduces dependency on antibiotics and synthetic chemicals while generating added value for coastal communities. Overall, alginate represents a multifunctional and cost-effective strategy to strengthen shrimp immunity, enhance resilience to pathogens and stressors, and promote environmentally responsible aquaculture production.
Feed production techniques using local raw materials for mud crab farmers in Madak Belek Hamlet, Sekotong District Diamahesa, Wastu Ayu; Lumbessy, Salnida Yuniarti; Azhar, Fariq; Abidin, Zaenal; Badrun, Badrun; Affandi, Rangga Idris; Sumsanto, Muhammad; Diniariwisan, Damai; Rahmadani, Thoy Batun Citra; Setyono, Bagus Dwi Hari
Penamas: Journal of Community Service Vol. 5 No. 4 (2025): Penamas: Journal of Community Service
Publisher : Nur Science Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53088/penamas.v5i4.2284

Abstract

This community service activity focused on developing feed production techniques using local raw materials for mud crab farmers in Madak Belek Hamlet, Sekotong District. The main challenge faced by farmers is the high cost of commercial feed, which reduces profit margins. In fact, the area is rich in underutilized nutrient-rich local resources such as trash fish and seafood processing by-products. A participatory approach was applied, including observation, socialization, demonstration, hands-on training, and evaluation. The training emphasized feed formulation and the application of 5% wheat gluten as a binder, which had been proven in preliminary studies to enhance feed stability in water. The results showed an improvement in participants’ knowledge and skills in processing local ingredients into quality feed. The expected impacts include reducing dependence on commercial feed, lowering production costs, and improving the efficiency and sustainability of mud crab farming. For further optimization, feed performance testing on crab growth and economic feasibility analysis are required.
Co-Authors A Rahman Abd Saddam Mujib Abidin, Z Abidin, Zaenal Adriana Monica Sahidu Agustin, Pradita Ayu Aini, Kuratul Andi Maria Ulfa Andre Rachmat Scabra Angga, Prayogi Dwina Anggraini, Irika Devi Annisa Azzahra, Annisa ANNISA, KARIMA NUR Anton Anton Arning Wilujeng Ekawati Asri, Yuliana Atmawinata, Lalu Mukhtar Auliah, Jami'atul Awan Dermawan Ayu Diamahesa, Wastu Badrun Badrun Bagus Dwi Hari Setyono Bagus Dwi Hari Setyono BAGUS DWI HARI SETYONO Bagus Dwi Hari Setyono Baihaqi, Lalu Wirahadi Al BETARI ATHIYAH IRAWATI Chen, Peter Damai Diniariwisan Damai Diniariwisan Dewa Gede Semara Edi Dewi Putri Lestari Dewi Putri Lestari, Dewi Putri Diamahesa, Wastu Ayu Diniariwisan, Damai Dwi Budi Santoso Dwiyanti, Septiana Eddy Supriyono Fariq Azhar Gede Agus Surya Pratama Gede Sudiarta Gusti Ngurah Sugiana Hafizah, Imroatul Hizbulloh, Lalu I Gusti Lanang Parta Tanaya I Ketut Sudiarta Irzal Effendi Isnaini, Siti Kaswadi, Hendri Khairul Umam Laily Fitriani Laily Fitriani Mulyani Laily Fitriani Mulyani Lalu Mukhtar Atmawinata Lalu Mukhtar Atmawinata Lalu Wirahadi Al Baihaqi Lumbessy, Salnida Yuniarti M Junaidi, M Malik, Muhammad Dzakiy Marno, Septhian MAS’UD, NURYADIN IBNU Maudina, Finda Maulana, Rona MOHAMAD FADJAR Mohamad Fadjar Muhammad Amin Muhammad Junaidi Muhammad Junaidi Muhammad Marzuki Muhammad Marzuki Muhammad Sumsanto Mulyani, Laily Fitriani Nanda Diniarti Ni Made Darmadi Nunik Cokrowati Nur Rahmawati Nuri Muahiddah Nurlaila Nurlaila OLIVIA NINGSIH Panosa, Alief Erwanda Pebrianti, Ni Luh Mutiara Prapti, Az-Zahra Nandia Purwati, Siva Putri, Anesya Wandining Rahmadani, Thoy Batun Citra Rahmadhani, Thoy Batun Citra Retno Palupi Rhojim Wahyudi Riza Umami RR. Ella Evrita Hestiandari Rusmin Hari Nuryadin Rusmin Nuryadin Sahrul Alim Sang Ayu Made Putri Suryani Saomadia, Baiq Triska Sapto Andriyono Saputra, Marta Ade Septiana Dwiyanti Septiana Dwiyanti Septiana Dwiyanti Soenarky, Wiwin Iky Suhardinata Sukartono Sukartono Susianti, Lena Syawalina Fitria Syawalina Fitria Syawalina Hari Fitria Thoy Batun Citra Rahmadani Thoy Batun Citra Rahmadani Thoy Batun Citra Rahmadani Thoy Batun Citra Rahmadani Ula, Nurtia Nikmatul Wastu Ayu Diah Mahesa1 Wiwik Handayani Wulandari, Witri Yanti, Septiana Dwi Yatin, Nur Yuliana Asri Yuliana Asri Yuliana Asri Yuliana Asri Zaenal Abidin Zaenal Abidin