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All Journal Jurnal Gamma E-Dimas: Jurnal Pengabdian kepada Masyarakat Acta Aquatica: Aquatic Sciences Journal Jurnal Riset Akuakultur Jurnal Pengabdian Kepada Masyarakat MEMBANGUN NEGERI Jurnal Gema Ngabdi Amalee: Indonesian Journal of Community Research & Engagement Indonesian Journal of Tropical Aquatic Jurnal Abdi Insani Community Development Journal: Jurnal Pengabdian Masyarakat Journal of Community Service and Empowerment PENGABDI: Jurnal Hasil Pengabdian Masyarakat Jurnal Pengabdian Masyarakat (ABDIRA) JAGO TOLIS : Jurnal Agrokompleks Tolis Depik Jurnal Ilmu-Ilmu Perairan, Pesisir dan Perikanan Depik Jurnal Ilmu-Ilmu Perairan, Pesisir, dan Perikanan Jurnal Perikanan

Riza Rahman Hakim

Universitas Muhammadiyah Malang

Author-ID : 1304599

Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Economics, Econometrics & Finance Education Engineering Environmental Science Health Professions Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Nursing Public Health Social Sciences Other

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ESTIMATION OF LEAF-LITTER DECOMPOSITION RATE Avicennia sp. ON THE NUTRIENTS CONTENT IN WONOREJO MANGROVE AREA, SURABAYA Hariyadi, Hariyadi; Hakim, Riza Rahman; Fitri, Ruhul Jihadil
Jurnal Perikanan Unram Vol 15 No 2 (2025): JURNAL PERIKANAN
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jp.v15i2.1457

The ecosystems of mangrove are one of the unique coastal ecosystems which have ecological and socio-economic functions. Mangroves have a significant role in supporting fisheries resources. Leaf-litter is a nutrient contributor released to the sea water and is functioned by aquatic biota both in the marine and estuary. The method used in this study is purposive random sampling method which refer to the category based on mangrove density. The average production of mangrove litter Avicennia sp, for 30 days at station I was 1.04 g/m²/ day, station II was 1.20 g/m²/day, station III was 0.75 g/m²/day. The leaf-litter decomposition rate at station I, experienced a decomposition process of 65%, at station II at 62.33%, and station III at 69.42%. The content of nitrogen (N) and fosfor (P) nutrients at station I is an average of N 0.74% and P 0.07%, station II is N 0.76% and P 0.05%, station III is N 0.74% and P 0 , 07%. The total amount of nutrients released in the Mangrove Information Center forest area, Wonorejo - Surabaya is nitrogen (N) 443.81 kg/m²/year and phosphor (P) 34.103 kg/m²/year.

Penerapan Teknik Budidaya Ikan Nila Dengan Sistem Kolam Air Deras Di Wisata Boonpring Kabupaten Malang Hakim, Riza Rahman; Indrawan, Rindya Fery
Jurnal Gema Ngabdi Vol. 7 No. 1 (2025): JURNAL GEMA NGABDI
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jgn.v7i1.524

Fish cultivation using a high-flowed water pond system is one of the most effective methods for cultivating freshwater fish such as tilapia. The high-flowed water pond culture method has several advantages, including high dissolved oxygen, adequate natural food, high stocking density, and lower pond costs. This method needs to be developed in fish farming groups, especially those with abundant water sources. The implementation of this community service program aims to disseminate intensive tilapia farming technology with a high-flowed water pond system to the community, especially in the Boonpring tourism area, Sanankerto Village, Malang Regency. The stages of the activity include training on the application of tilapia aquaculture in high-flow water pond systems, which includes material on the basic principles of high-flow water pond technology, tilapia aquaculture in high-flow water pond systems, and feeding management. This was followed by the construction of a demonstration plot for tilapia aquaculture in a high-flowed water pond system, as well as assistance from the beginning of seed stocking until harvest. The tilapia rearing period is carried out for 5–6 months until the fish reaches the consumption size. The size of tilapia consumed by Indonesians is between 2 and 5 fish per kilogram. This depends on consumer demand. From the harvest results, the survival rate (SR) of tilapia is 88%, with a feed conversion ratio (FCR) of 1.3. Seeing the potential, it is recommended to increase the number of high-flowed water ponds.

Rose anthocyanin microencapsulation for improving the color of two strains of koi Andriawan, Soni; Hakim, Riza Rahman; Hermawan, David; Bahiyya, Choridatul; Darmawan, Ari Wahyu; Miranda, Felix; Dahlia, Lisma; Dewantari, Arinta Agnie
Depik Jurnal Ilmu Ilmu Perairan, Pesisir, dan Perikanan Vol 14, No 3 (2025): SEPTEMBER 2025
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.14.3.46784

Koi fish coloration is genetically significant, but environmental factors and color quality can lead to degradation. Some individuals use synthetic dyes to enhance their appearance, which harms the environment. This study explored the effects of microencapsulated Rose sp. flower anthocyanin (MRFA) as a natural alternative dye to enhance the color of Sanke and Kohaku koi fish. Sanke exhibits orange-black hues, while Kohaku shows orange-white hues, allowing for comparative analysis. Before the experiment, MRFA was analyzed using FESEM and XRD to assess the particle size distribution and shape of the anthocyanin microcapsules. A Randomized Complete Design (CRD) with four treatments (T0, 150 mg (T1), 300 mg (T2), and 450 mg (T3)) and five replications were used. Data was analyzed with SPSS. Results showed that MRFA particles were distributed, though not entirely homogeneous (14 m to 170 m), with XRD spectra indicating interactions between maltodextrin and Rose sp. anthocyanin. Results showed that MRFA significantly improved certain color parameters in Sanke, particularly at moderate doses (T1 and T2), but the control group (T0) outperformed MRFA in some cases. In Kohaku, no significant improvement was observed compared to the control, suggesting that MRFA was less effective in enhancing whiteorange pigmentation. Overall, our findings indicate that MRFA supported koi growth but showed limited, strain-specific effects on coloration. Further studies with longer trials and larger populations are needed to confirm its potential as a natural feed additive.Keywords:Herbal extractCyprinus carpioKohakuPigmentSanke

Optimalisasi Pakan Ikan Mandiri melalui Teknologi Recirculating Aquaculture System (RAS) Berbantuan Solar Cell di Desa Parangargo Cholily, Yus Mochamad; Effendy, Machmud; Indrawan, Rindya Fery; Subairi, Subairi; Suwandayani, Beti Istanti; Hakim, Riza Rahman
Jurnal Pengabdian Masyarakat (ABDIRA) Vol 5, No 4 (2025): Abdira, Oktober
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/abdira.v5i4.1101

Waste management issues in Serang Regency, particularly in Desa Cerukcuk, have become a major concern due to the increasing volume of waste that polluting rivers, roadsides, and residential areas. To date, Serang Regency does not have land or facilities for a permanently operating Final Waste Disposal Site (TPSA). This situation has significant environmental impacts and indicates a gap between infrastructure needs and policy implementation practical reality. This study aims to evaluate the commitment of the Serang Regency This community service program focuses on optimizing independent fish feed production through the implementation of a Recirculating Aquaculture System (RAS) combined with a mini Solar Power Plant (PLTS) in Parangargo Village, Wagir District, Malang Regency. The program was designed to address the challenges of high commercial feed costs and dependence on grid electricity that have burdened local fish‐farming groups. The activities included socialization, training in independent fish feed production, installation of the RAS and mini PLTS technologies, business management mentoring, and outcome evaluation. The results show that energy efficiency increased by 20–30% after the installation of the mini PLTS, while feed costs decreased by 10–15% due to the availability of self-produced fish feed. The RAS technology also improved water quality and reduced fish mortality, leading to approximately a 10% increase in production per cycle. Moreover, the managerial and digital marketing skills of the partner groups—“Minaargo” Fish Farming Group and “Matoon” Youth Organization—significantly improved. This program strengthens the village’s food and energy independence and supports the achievement of the university’s Key Performance Indicators.

EFEKTIVITAS PENAMBAHAN SUPLEMEN PAKAN YANG BERBEDA TERHADAP PIGMENTASI WARNA MERAH IKAN KOI KOHAKU (Cyprinus carpio) Sutarjo, Ganjar Adhywirawan; Hakim, Riza Rahman; Suryadewi, Nindya
Jurnal Riset Akuakultur Vol 18, No 2 (2023): (Juni, 2023)
Publisher : Politeknik Kelautan dan Perikanan Jembrana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/jra.18.2.2023.81-91

Tingkat kecerahan warna merah dan putih sangat menentukan kualitas dan harga dari ikan koi kohaku. Tujuan dari dilakukannya penelitian ini yaitu untuk mengetahui pengaruh penambahan suplemen yang berbeda berupa maggot, Spirulina platensis, dan astaxanthin pada pakan dalam meningkatkan kualitas pigmen warna merah pada ikan koi. Metode yang digunakan adalah metode eksperimental dengan rancangan acak lengkap (RAL). Perlakuan yang diberikan adalah perlakuan kontrol tanpa penambahan suplemen, pemberian suplemen yang berbeda berupa penambahan tepung maggot dengan dosis 20%, tepung S. platensis 1%, dan produk suplemen komersial astaxanthin 1% pada pakan komersial. Parameter utama yang diamati adalah perubahan warna diamati menggunakan TCF (toca color finder) dan hasil penilaian observasi lima orang panelis. Parameter lain yang diamati meliputi pertumbuhan panjang mutlak, pertumbuhan bobot mutlak, kelulushidupan, dan rasio konversi pakan. Dari hasil uji ANOVA dan beda nyata terkecil, dapat diketahui bahwa pengaruh terbaik terhadap pigmentasi warna merah dan kinerja pertumbuhan ikan koi kohaku diperoleh pada perlakuan D (astaxanthin 1%) dengan skor 2,49, pertumbuhan panjang mutlak 2,53 cm, pertumbuhan bobot mutlak 3,15 g, dan rasio konversi pakan terendah (0,66). Tingkat kelangsungan hidup ikan koi adalah 100%. Parameter kualitas air yang diamati (suhu, pH, oksigen terlarut, nitrat, nitrit, dan amoniak) tergolong optimal, dengan menggunakan sistem resirkulasi dengan filter dakron, bioball, dan batu karang jahe. Berdasarkan hasil penelitian ini, disimpulkan bahwa penambahan suplemen astaxanthin 1% pada pakan merupakan dosis yang efektif dalam meningkatkan warna merah pada ikan koi karena memiliki kandungan karotenoid yang tinggi dibandingkan suplemen yang lain.The brightness level of red and white greatly determines the quality and price of Kohaku koi. The aim of this study was to determine the effect of addition of different supplements in the form of maggot, Spirulina platensis, and astaxanthin to feed in improving the quality of red pigment in koi. The method used was an experimental method with a completely randomized design (CRD). The treatments given were a control treatment without adding supplements, addition of different supplements in the form of addition of maggot meal at a dose of 20%, S. platensis meal 1%, and commercial supplement products astaxanthin 1% in commercial feed. The main parameters observed were color changes observed using TCF (toca color finder) and the results of the observation assessment of five panelists. Other parameters observed included absolute length growth, absolute weight growth, survival, and feed conversion ratio. From the results of ANOVA and the smallest significant difference tests, it can be seen that the best effects for the red color pigmentation and growth performances of kohaku koi were obtained in treatment D (astaxanthin 1%) with a score of 2.49, absolute length growth of 2.53 cm, absolute weight growth of 3,15 g, and the lowest feed conversion ratio (0.66). The survival of koi was 100%. The water quality parameters observed (temperature, pH, dissolved oxygen, nitrate, nitrite, and ammonia) were classified as optimal, using a recirculation system with a dacron filter, bioball, and ginger coral. Based on the results of this study, it was concluded that addition of 1% astaxanthin supplement to feed is an effective dose in increasing the red color of koi because it has a high carotenoid content compared to other supplements.

DISEMINASI PAKAN MANDIRI PADA BUDIDAYA IKAN BERBASIS TEKNOLOGI RESIRCULATING AQUACULTURE SYSTEM (RAS) BERBANTUAN SOLAR CELL DI DESA PARANGARGO Cholily, Yus Mochamad; Effendy, Machmud; Indrawan, Rindya Fery; Subairi, Subairi; Hakim, Riza Rahman; Suwandayani, Beti Istanti
Community Development Journal : Jurnal Pengabdian Masyarakat Vol. 5 No. 5 (2024): Vol. 5 No. 5 Tahun 2024
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/cdj.v5i5.36270

Kegiatan pengabdian ini bertujuan untuk meningkatkan produktivitas dan efisiensi budidaya ikan di Desa Parangargo, Kecamatan Wagir, Kabupaten Malang, melalui diseminasi pakan mandiri dan penerapan teknologi Recirculating Aquaculture System (RAS) berbantuan solar cell. Permasalahan yang dihadapi petani ikan di desa ini adalah tingginya biaya pakan komersial dan energi yang berdampak pada rendahnya hasil budidaya. Metode pengabdian yang digunakan meliputi pelatihan, demonstrasi, dan pendampingan kepada petani ikan dalam memproduksi pakan mandiri dan mengoperasikan sistem RAS yang hemat energi. Hasil pengabdian menunjukkan bahwa penggunaan pakan mandiri mampu menurunkan biaya produksi sebesar 30%, sementara penerapan RAS berbantuan solar cell meningkatkan efisiensi penggunaan air hingga 40% dan mengurangi ketergantungan pada energi listrik konvensional. Pengabdian ini memberikan dampak positif terhadap peningkatan kesejahteraan petani ikan serta keberlanjutan budidaya ikan di daerah tersebut.

Teknologi Akuaponik sebagai Solusi Kemandirian Pangan Keluarga di Kelompok Kampung Wolulas Kecamatan Turen Kabupaten Malang: Aquaponic Technology as a Solution for Family Food Resilience in the Wolulas Village Group, Turen District, Malang Regency Hakim, Riza Rahman; Hariyadi, Hariyadi
Amalee: Indonesian Journal of Community Research and Engagement Vol. 2 No. 1 (2021): Amalee: Indonesian Journal of Community Research and Engagement
Publisher : LP2M INSURI Ponorogo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37680/amalee.v2i1.643

Aquaponics is a technology that combines fish and vegetable cultivation at one system. Aquaponics can be used as an alternative to drive food resilience at the family level. For it can also provide benefits for improving family nutrition by fulfilling animal and vegetable protein, it is necessary to disseminate this technology to the public. The implementation of this service community program aims to disseminate aquaponic technology to the community, especially in Kampung Wolulas Group, Turen District of Malang Regency. The method used in the program was to provide solutions and basic information related to aquaponics, which was implemented through training and applications as well as partner assistance. There were three models of appropriate aquaponic technology applied, namely the bucket pond, the round tarpaulin pond, and the square tarpaulin pond. The cultivation results showed the survival rate of catfish by 65% and the feed conversion ratio of 1,1. Based on the results of the aquaponics, it is more expected to be a solution for family food resilience, especially in partner groups. Akuaponik merupakan teknologi yang menggabungkan budidaya ikan dan tanaman sayuran dalam satu periode budidaya. Teknologi akuaponik bisa dijadikan alternatif untuk menggerakkan kemandirian pangan di tingkat keluarga. Karena sangat berguna untuk memberikan manfaat bagi peningkatan gizi keluarga melalui pemenuhan gizi protein hewani dan nabati, perlu adanya diseminasi teknologi akuaponik ini kepada masyarakat. Pelaksanaan program pengabdian ini bertujuan untuk mendiseminasikan teknologi akuaponik pada masyarakat khususnya di Kelompok Kampung Wolulas Kecamatan Turen, Kabupaten Malang. Metode yang digunakan dalam pelaksanaan Program Pengabdian Kelompok ini adalah memberikan solusi dan informasi dasar terkait teknologi akuaponik di kelompok mitra, yang dilaksanakan melalui kegiatan pelatihan dan aplikasi teknologi, serta pendampingan mitra. Terdapat 3 model teknologi tepat guna akuaponik yang diaplikasikan, yaitu model akuaponik dengan kolam bak ember, kolam terpal bundar, dan kolam terpal kotak. Hasil budidaya menunjukkan keberhasilan hidup ikan lele sebesar 65% dan rasio konversi pakan (FCR) sebesar 1,1. Dengan hasil penerapan teknologi akuaponik ini diharapkan dapat menjadi solusi kemandirian pangan keluarga khususnya di kelompok mitra.

Rose anthocyanin microencapsulation for improving the color of two strains of koi Soni Andriawan; Riza Rahman Hakim; David Hermawan; Choridatul Bahiyya; Ari Wahyu Darmawan; Felix Miranda; Lisma Dahlia; Arinta Agnie Dewantari
Depik Vol 14, No 3 (2025): SEPTEMBER 2025
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.14.3.46784

TREATMENT OF ADDITION OF SELENOMETIONIN IN FEED FOR GROWTH AND RESISTANCE OF JUVENIL BODY CANTANG FISH (Epinephelus fuscoguttatus x Epinephelus lanceolatus) Gitra - Yoga; David Hermawan; Riza Rahman Hakim
IJOTA (Indonesian Journal of Tropical Aquatic) Vol. 7 No. 1 (2024): February
Publisher : Universitas Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22219/ijota.v7i1.8542

Cantang grouper is a superior marine aquaculture commodity with high economic value; however, disease susceptibility and suboptimal growth remain major challenges in its culture. Selenium in the form of selenomethionine (Se) is known to function as an antioxidant and immunostimulant that may improve fish growth and health performance. Therefore, this study aimed to evaluate the effect of dietary selenomethionine supplementation on the growth, hematocrit levels, and phagocytic activity of Cantang grouper. This study employed an experimental method using a Completely Randomized Design (CRD) with five treatments and three replications. The treatments consisted of different Se supplementation levels in feed, namely 0 mg/kg (control), 4 mg/kg, 8 mg/kg, 12 mg/kg, and 16 mg/kg feed. Cantang grouper with an initial size of 8 cm and an average weight of 12.95 g were used as experimental fish. Parameters observed included growth performance, hematocrit levels after challenge with Vibrio vulnificus, and phagocytic activity following challenge with Staphylococcus aureus at 10⁷ CFU/mL. The results showed that selenomethionine supplementation significantly affected fish growth and immune response. The best performance was obtained in treatment E (16 mg Se/kg feed), which produced the highest final length (11.82 cm) and weight (26.63 g). The same treatment also resulted in the highest hematocrit value (27.59%) and phagocytic activity (37.09%). In conclusion, dietary supplementation of 16 mg Se/kg feed effectively enhanced growth and immune responses of Cantang grouper, indicating its potential application in improving aquaculture productivity and disease resistance.

ANALYSIS OF MICROPLASTIC ABUNDANCE IN JERBUNG SHRIMP (FENNEROPENAEUS MERGUIENSIS) IN WIND SEA WATER, PASURUAN EAST JAVA PROVINCE Meishela Dwi Lawidya; Riza Rahman Hakim; Hariyadi Hariyadi
IJOTA (Indonesian Journal of Tropical Aquatic) Vol. 8 No. 1 (2025): February
Publisher : Universitas Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22219/ijota.v8i1.12358

Plastic production worldwide has increased the development of synthetic polymers in the mid-20th century. When disposed of in the marine environment, plastic can harm organisms in the sea. The plastic degradation process is very slow, and thus microplastic has the potential to last for a very long period of time in the marine environment (Hidalgo, et al , 2012). This can threaten organisms in the waters to consume microplastic continuously. The purpose of this study is to determine the captured shrimp in the waters are microplastic contaminated and to find out what type of microplastic is found. Shrimp sampling is done for two months, located in the Lekok Sea Waters, Pasuruan Regency, East Java. Shrimp samples that have been taken are then analyzed in the fisheries laboratory by taking shrimp intestines and shrimp meat and then adding 10% KOH at a ratio of 1: 3 and roasted using a temperature of 60˚C for 24 hours for the destruction process. Based on microplastic analysis of the shrimp, it was found that the largest abundance of microplastic was dominated by microplastic fiber types compared to other types such as fragments and films. The abundance results show that at station 1 the average is 1 - 43 particles / gram, station 2 the average abundance value of microplastic is 2 - 31 particles / gram, station 3 the average abundance is 2 particles / gram - 31 particles / gram with very diverse sizes.

Co-Authors Agista Tsani Untsa Ahmad Jumarding Ahmad Rusyda Hafidhi Albasa Ais Anantama Wibowo Albasa, Ahmad Rusyda Hafidhi Alisatul Amalia Andriyanto Andriyanto Anis Zubaidah Anis Zubaidah Anis Zubaidah Arfida Boedirochminarni Ari Wahyu Darmawan Arinta Agnie Dewantari Artadana, Ida Bagus Made Astuti, Triana Indri Azhari Azhari Bahiyya, Choridatul Budi Setyono Choridatul Bahiyya Dahlia, Lisma Darmawan, Ari Wahyu David Hermawan David Hermawan David Hermawan Dewantari, Arinta Agnie Dianita Wijayanti Diki Restu Setiawan Ditya, Yoga Candra Dony Prasetyo Erni Indrawati Felix Miranda Fitri, Ruhul Jihadil Ganjar Adhywirawan Sutarjo Ganjar Adhywirawan Sutarjo Gema Wahyudewantoro, Gema Gitra - Yoga Hany Handajani Hariyadi Hariyadi Hariyadi Hariyadi Hariyadi, Hariyadi Hermawan, David Hidayat, Reyhan Rafisyah Indrawan, Rindya Fery Irzal Effendi Ismi, Yuliani Jamhari Jamhari Kholista, Marry Ann Lailiyah, Ummi Badriyatul Lili Zalizar Lisma Dahlia M. Tang Machmud Effendy Machmud Effendy Machmud Effendy Marry Ann Kholista Maulidiya, Nurfitri Mega Fatimah Rosana Meishela Dwi Lawidya Miranda, Felix Moh. Nurhuda Mustaqim Mustaqim, Mustaqim Novin Farid Styo Wibowo Nur Subeki Nurfitri Maulidiya Nurhuda, Moh. Olivia Agustin Olivia Agustin Puji Sumarsono Rasyidi, Emil Salim Ridwan Ridwan Rini Mastuti Rogerio Lainus Tilman Sarmento Sary Astuty Aceh Soni Andriawan Subairi Subairi Suryadewi, Nindya Suwandayani, Beti Istanti Triana Indri Astuti Untsa, Agista Tsani Utomo, Waskito Dwi Wahyu Parmana Saputra Warkoyo Warkoyo Waskito Dwi Utomo Wenny Novita Sari Worowirastri E., Dyah Yohana Agustina Yudhistyan Hanif Rahmawan Yuliani Ismi Yus Mochamad Cholily

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