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All Journal HAYATI Journal of Biosciences Jurnal Akuakultur Indonesia Jurnal Teknologi Perikanan dan Kelautan Jurnal Pengolahan Hasil Perikanan Indonesia Jurnal Akuakultur Rawa Indonesia ILMU KELAUTAN: Indonesian Journal of Marine Sciences Microbiology Indonesia BIOTROPIA - The Southeast Asian Journal of Tropical Biology Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Omni-Akuatika Proceeding Simposium Nasional Kelautan dan Perikanan Jurnal Perikanan Universitas Gadjah Mada Indonesian Aquaculture Journal Jurnal Riset Akuakultur Media Akuakultur Jurnal Iktiologi Indonesia (Indonesian Journal of Ichthyology) Media Akuatika: Jurnal Ilmiah Jurusan Budidaya Perairan Jurnal Sains Terapan : Wahana Informasi dan Alih Teknologi Pertanian Makara Journal of Science Depik Jurnal Ilmu-Ilmu Perairan, Pesisir dan Perikanan Depik Jurnal Ilmu-Ilmu Perairan, Pesisir, dan Perikanan Journal of Fisheries & Marine Biodiversitas Journal of Biological Diversity

MUNTI YUHANA

Department Of Aquaculture, Faculty Of Fisheries And Marine Science, Bogor Agricultural University, Darmaga Campus, Bogor 16680, Indonesia

Author-ID : 433680

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Computer Science & IT Earth & Planetary Sciences Economics, Econometrics & Finance Education Engineering Environmental Science Immunology & microbiology Library & Information Science Medicine & Pharmacology Social Sciences Veterinary

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RESPONS IMUN UDANG VANAME PADA SISTEM BIOFLOK DENGAN KEPADATAN BERBEDA TERHADAP INFEKSI Vibrio parahaemolyticus Widanarni, Widanarni; Fadilah, Iin Nur; Cahyawati, Nadia; Yuhana, Munti; Sukenda, Sukenda; Gustilatov, Muhamad
Media Akuakultur Vol 20, No 2 (2025): Desember 2025
Publisher : Politeknik Kelautan dan Perikanan Bone

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/ma.20.2.2025.51-61

Budidaya udang vaname (Litopenaeus vannamei) pada kepadatan tinggi meningkatkan stres dan risiko infeksi bakteri, khususnya Vibrio parahaemolyticus. Teknologi bioflok (BFT) melalui penambahan karbon organik dapat meningkatkan biomassa mikroba heterotrof yang memperbaiki respons imun dan menurunkan virulensi bakteri. Penelitian ini bertujuan menganalisis respons imun dan resistansi udang yang dipelihara dengan padat tebar berbeda dalam sistem bioflok terhadap infeksi V. parahaemolyticus. Udang (0,44±0,02 g) dipelihara selama 7 hari sebanyak 16 perlakuan hasil kombinasi sistem bioflok dan kontrol (tanpa bioflok) dengan kepadatan 4, 8, 12, dan 16 ekor L-¹, lalu diuji tantang melalui perendaman dengan dosis V. parahaemolyticus 10u CFU mL-¹ dimulai sejak awal perlakuan. Hasil menunjukkan bahwa sistem bioflok meningkatkan parameter imun udang, termasuk total hemocyte count (THC), aktivitas fagositik (AF), respiratory burst (RB), dan aktivitas phenoloxidase (PO) secara signifikan (P<0,05) dibandingkan kontrol. Kelimpahan V. parahaemolyticus di air dan tubuh udang perlakuan bioflok lebih rendah dan berbeda signifikan (P<0,05) dengan kontrol positif. Bioflok juga meningkatkan tingkat kelangsungan hidup, dengan nilai pada kepadatan 4 ekor L-¹ (83,33±5,77%), dan tetap lebih baik dibandingkan kontrol hingga kepadatan 16 ekor L-¹. Sistem bioflok terbukti efektif meningkatkan respons imun, menekan infeksi V. parahaemolyticus, dan mempertahankan kelangsungan hidup udang vaname pada kepadatan tinggi.

Intensive Litopenaeus vanamei pond performance with irrigation system based on Distribution of Vibrio spp. Claritha Madonsa; Bambang Widigdo; Majariana Krisanti; Munti Yuhana
Depik Vol 11, No 2 (2022): August 2022
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.11.2.24946

Intensive shrimp ponds are characterized by the high stocking density of shrimp and artificial feeding and are equipped with an irrigation network system. The purpose of this study was to analyze the intensive L.vannamei pond with an irrigation system based on Vibrio spp. distribution to determine environmental quality degradation in terms of the treat of pathogenic bacteria. This study was carried out for one production cycle from March toJuly 2021 in an intensive shrimp farm in Sarjo Village, Pasangkayu Regency, West Sulawesi. The parameters analyzed in this study consisted of Total Bacterial Count (TBC), Total Vibrio Count (TVC), yellow and green colony Vibrio spp. in water using the spread plate method. Water samples for bacterial analysis were taken from 1) source water: (a) surface (050 cm depth) and (b) pump mouth; 2) treatment pond; 3) aquaculture pond; 4) Waste Water Treatment Ponds (WWTP); 5) outlet (before discharge into public waters). The results showed that the distribution of bacteria from seawater to WWTPs pond still increased the abundance of Vibrio spp., although the abundance of Vibrio spp. is still safe or below the maximum limit of 104 CFU/mL. Distribution of Vibrio bacteria in Intensive L.vannamei Pond Sarjo Village, West Sulawesi gave a relatively good pond performance because it was characterized by an abundance of Vibrio bacteria in the pond irrigation system from inlet to outlet which was still below the maximum limit and high pond productivity.Keywords:Intensive shrimp pondPathogenicVibrio spp.Pond performanceAquaculture

CURRENT MICROBIOLOGICAL ASPECTS IN HIGH MOUNTAIN LAKE RESEARCH MUNTI YUHANA; KURT HANSELMANN
BIOTROPIA Vol. 13 No. 1 (2006): BIOTROPIA Vol. 13 No. 1 June 2006
Publisher : SEAMEO BIOTROP

Remote and normally unpolluted high mountain lakes provide habitats with no or very limited anthropogenic influences and, therefore, their hydrodynamics are mostly regulated by the natural conditions. Researches in high mountain lakes deal with measuring and modeling the response of the habitats to environmental changes especially correlated to acid deposition, pollutants influx and climatic variability. The microbial world has also become a focus in many studies of these extreme ecosystems. Despite the pressure of harsh and extreme conditions, microbial communities living in these habitats developed flexible strategies and show quick adaptation to climate oscillation. New aspects in microbiological studies in recent high mountain lake research are presented in this paper.Key words : High mountain lake, extreme environment, microbial communities, microbial diversity, psychrotolerant microbe, molecular microbe

BACTERIAL COMMUNITY SHIFTS OF A HIGH MOUNTAIN LAKE IN RESPONSE TO VARIABLE SIMULATED CONDITIONS: AVAILABILITY OF NUTRIENTS, LIGHT AND OXYGEN MUNTI YUHANA; THOMAS HORATH; KURT HANSELMANN
BIOTROPIA Vol. 13 No. 2 (2006): BIOTROPIA Vol. 13 No. 2 December 2006
Publisher : SEAMEO BIOTROP

We studied bacterial population composition shifts by exposing natural water samples to variable simulated environmental conditions. The samples were taken from Lake Jori XIII (2640 m a.s.l), an oligo-to mesotrophic cold freshwater lake, located in the eastern Swiss Alps. The Jori lakes are characterized as remote, unpolluted high mountain lakes with a long period of ice cover and typically low nutrient concentrations. Culture independent techniques (PCR-based analyses) were used for detection and molecular characterization of a large number of bacteria most of which are still uncultivable. Bacterial community shifts over three ecological conditions (nutrients, light and oxygen availability) were detected by using Temporal Temperature gradient Gel Electrophoresis (TTGE) of a PCR-amplified part of the 16S rRNA gene. The bacterial populations responded differently to the variable conditions, as revealed by TTGE pattern shifts during the experiment. Key words: Temporal Temperature gradient Gel Electrophoresis (TTGE), ARB, small subunit ribosomal RNA gene (SSU rRNA gene), alpine freshwater lake JOri XIII, PCR

EFFECTS OF HUMIC ACID ADDITION TO FEEDS WITH HEAVY METAL CADMIUM CONTAMINATION FROM GREEN MUSSELS ON THE GROWTH PERFORMANCE OF ASIAN SEABASS Rasidi Rasidi; Dedi Jusadi; Mia Setiawati; Munti Yuhana; Muhammad Zairin Jr.; Ketut Sugama
BIOTROPIA Vol. 26 No. 3 (2019): BIOTROPIA Vol. 26 No. 3 December 2019
Publisher : SEAMEO BIOTROP

Although it contains heavy metals, the highly nutritious green mussel Perna viridis is used as a fish meal replacement in fish diets. Fortunately, humic acid (HA) has the ability to chelate heavy metals in animal feeds. Its addition to fish feed formulation is, therefore, needed to prevent the accumulation of heavy metals in the fish's body. Hence, an experiment using a Completely Randomized Design (CRD) with 5 treatments and 3 replications was conducted to evaluate the performance and feed efficiency of Asian seabass Lates calcarifer juveniles with the addition of HA to their green mussel–based diet containing the heavy metal cadmium (Cd). Five experimental diets were formulated with different dosages of HA addition at 0, 400, 800, 1200, and 1600 mg kg⁻¹ of feed as treatments A, B, C, D, and E, respectively. The experimental diets were given to triplicate groups of 15 Asian seabass juveniles with an initial body weight of 4.30 ± 0.60 g over a 70-day cultivation period, feeding until satiation. The results showed that feed consumption, feed digestibility, protein retention, growth performance, and feed efficiency were significantly affected by HA addition in the fish diet. Among all treatments, HA addition of 1600 mg kg⁻¹ produced the best biological response from the Asian seabass. To conclude, the HA addition of 1600 mg kg⁻¹ into the diet was the best dosage, resulting in optimal growth performance and feed efficiency in Asian seabass. The highest dose of HA in Cd-contaminated feeds could reduce Cd content, but had not yet been able to eliminate Cd in fish meat. Therefore, green mussel meal, with HA addition as an alternative protein source, has potential as a feed additive for Cd-contaminated diets of Asian seabass juveniles.

Impact of Bukit Dua Belas rainforest transformation to oil palm plantation on phylogenetic of soil bacterial communities in Sarolangun, Jambi, Sumatra, Indonesia MARINI WIJAYANTI; ARIS TRI WAHYUDI; MUNTI YUHANA; MARTIN ENGELHAUPT; ANJA MERYANDINI
Biodiversitas Journal of Biological Diversity Vol. 20 No. 3 (2019)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d200326

Abstract. Wijayanti M, Wahyudi AT, Yuhana M, Engelhaupt M, Meryandini A. 2019. Impact of Bukit Dua Belas rainforest transformation to oil palm plantation on phylogenetic of soil bacterial communities in Sarolangun, Jambi, Sumatra, Indonesia. Biodiversitas 20: 811-818. Land use change from forest to oil palm plantation at Sumatra could decrease biodiversity, including bacterial diversity. The case of Bukit Dua Belas transformation from forest to oil palm plantation was gotten for measuring shift community of soil bacterial in both areas. The diversity of bacterial communities from rainforest and oil palm plantation topsoil in Sumatra was studied using pyrosequencing of 16S rRNA gene and common biodiversity indices. Phylogenetic approach was used to reveal the community shift of bacterial phyla and genera in both areas. Ecological approach was carried out by measuring soil pH, TC (total carbon), TN (total nitrogen), AP (available phosphorous), bacterial diversity with Shannon and Simpson indices, and bacterial richness with Chao1-ACE index and OTUs. Bacterial diversity and richness on lowland forest topsoil and oil palm plantation soil were not different, as soil pH, TC, and TN as substrate factors were not different significantly. The majority of sequences related to Acidobacteria (56.33%), Proteobacteria (27.43%), Actinobacteria (7.11%), and Cyanobacteria (5.55%) were from forest; whereas those related to Acidobacteria (50.11%), Proteobacteria (31.63%), Actinobacteria (7.58%), Chloroflexi (2.60%), and Gemmatimonadetes (2.71%) invented from oil palm plantation. Acidobacteria was the most dominant phyla in both habitats, because soil pH in both areas was acidic (3.77 - 4.80 pHH2O). The genera of alpha-proteobacteria dominated in genera phylotype of bacterial 16S rRNA phylogenetic revealed in both forest and oil palm plantation topsoil. The most genera in phylogenetic tree are Burkholderia from Beta-proteobacteria. The bacterial community shift occurred in forest transformation, even though the oil palm plantation showed more bacterial phyla and genera than the lowland rainforest.

Phytochemical screening and antibacterial activity test of Curcuma zedoaria, C. aeruginosa, and C. mangga extracts against Aeromonas hydrophila ADE DWI SASANTI; WIDANARNI WIDANARNI; SUKENDA SUKENDA; DINAMELLA WAHJUNINGRUM; MUNTI YUHANA; MIA SETIAWATI
Biodiversitas Journal of Biological Diversity Vol. 26 No. 4 (2025)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d260409

Abstract. Sasanti AD, Widanarni, Sukenda, Wahjuningrum D, Yuhana M, Setiawati M. 2025. Phytochemical screening and antibacterial activity test of Curcuma zedoaria, C. aeruginosa, and C. mangga extracts against Aeromonas hydrophila. Biodiversitas 26: 1573-1580. The chemical compounds found in plants, with their potent antibacterial properties, hold significant potential as alternatives to antibiotics. This study aimed to identify the compounds present in the extracts of C. zedoaria or zedoary, C. aeruginosa, pink and blue ginger, and C. mangga or mango turmeric and to test their antibacterial activity against A. hydrophila. The extract of C. zedoaria, C. aeruginosa, and C. mangga extracts were obtained by maceration in 70% ethanol at a solvent ratio of 1:5 (w/v). The compounds in the extracts were identified by phytochemical analysis, followed by Gas Chromatography-Mass Spectrometry (GC-MS) analysis. The extraction results showed extract yields of C. zedoaria 9.87% (w/w), C. aeruginosa 9.89% (w/w), and C. mangga 9.56% (w/w), respectively. The phytochemical analysis revealed that C. zedoaria extract contained the highest levels of flavonoids as quercetin and curcumin, compared to other extracts. The highest total flavonoids, tannins, saponins, and total phenolic compound contents were found in the C. aeruginosa extract, whereas the highest antioxidant content was found in the C. mangga extract. GC-MS analysis detected the compound 1,2,3-propanetriol with the highest percentage area in C. zedoaria extract; in C. aeruginosa extract, the highest percentage area was found in the neocurdione compound. In comparison, in C. mangga extract, the highest percentage area was found in (E)-Labda-8(17), 12-dien-15, 16-dial compound. All three extracts showed significant antibacterial activity against A. hydrophila, as indicated by the inhibition zone of 9.37 to 14.40 mm. The Minimum Inhibitory Concentration (MIC) and Minimum Bactericidal Concentration (MBC) against A. hydrophila of the three extracts were 6.25 mg mL-1 and 50 mg mL-1, respectively, suggesting their potential as new antibacterial treatments.

Yeast probiotic Kodamaea ohmeri and Candida parapsilosis for enhancing growth performance and resistance of whitelegs shrimp (Litopenaeus vannamei) against Vibrio parahaemolyticus infections Mohammad Faizal Ulkhaq; Widanarni Widanarni; Dinamella Wahjuningrum; Munti Yuhana; Azfar Ismail
Jurnal Ilmiah Perikanan dan Kelautan 2026: IN PRESS ISSUE (JUST ACCEPTED MANUSCRIPT, 2026)
Publisher : Faculty of Fisheries and Marine Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar

Graphical Abstract Highlight Research Potential probiotic yeast non-Saccharomyces for the aquaculture sector has been explored. First report of probiotic yeasts K. ohmeri and C. parapsilosis in farmed shrimp for sustainable aquaculture. The effect of yeasts K. ohmeri and C. parapsilosis as growth promoters and immunostimulants against V. parahaemolyticus infection in whiteleg shrimp has been revealed. K. ohmeri and C. parapsilosis improve the growth performance and enhance the immune response of whiteleg shrimp to V. parahaemolyticus infection. Abstract Disease in shrimp aquaculture has been a serious problem that leads to reduced productivity and significant economic losses, one of which is caused by Vibrio parahaemolyticus. This pathogen causes acute hepatopancreatic necrosis disease (AHPND), resulting in high mortality in shrimp farming operations. The use of antibiotics as the primary solution for bacterial disease management has been prohibited due to adverse effects, including the development of antimicrobial resistance and environmental degradation. Probiotics have become one of the preferred alternatives because of their effectiveness in preventing disease and their environmentally safe. This study evaluated the effects of administering the yeast probiotics Kodamaea ohmeri and Candida parapsilosis on the growth performance and resistance of whiteleg shrimp challenged with V.parahaemolyticus. A total of 400 whiteleg shrimp (1.14±0.10 g, weight) were distributed into 20 glass aquaria (40×30×30cm) at a stocking density of 1 individual/L. The experiment used a completely randomized design with four treatments: positive control (PC), negative control (NC), K. ohmeri probiotic (KO), and C. parapsilosis probiotic (CP), each with five replicates. The probiotics were administered at a dose of 106 CFU/mL every morning for 30 days, after which a challenge test was conducted by immersion in V. parahaemolyticus RifR at a density of 105 CFU/mL for 7 days, except for the negative control. The results showed that administration of the probiotic K. ohmeri resulted in significantly better growth performance (p<0.05) and a greater reduction in total vibrio count and total V.parahaemolyticus RifR count than other treatment. In addition, K. ohmeri produced significant increase in total hemocyte count, differential hemocyte count, and survival rate than the other treatments (p<0.05) after the challenge period. In conclusion, the yeast probiotic K. ohmeri had a positive effect on growth performance and was capable of protecting whiteleg shrimp against V. parahaemolyticus infection.

Co-Authors , Alimuddin , Rahman, , Achmad Farouq ADE DWI SASANTI Ade Dwi Sasanti Adna Sumadikarta ADNI OKTAVIANA Afif, Usamah Afiff , Usamah Agus Alim Hakim Aldy Mulyadin Aliati Iswantari Alimuddin Alimuddin Alimuddin Angela M Lusiastuti Angela Mariana Lusiastuti Angela Mariana Lusiastuti Angela Mariana Lusiastuti Angela Mariana Lusiastuti ANGELA MARIANA LUSIASTUTI Anis Zubaidah Anja Meryandini ANJA MERYANDINI Annisa Astri Anggraeni Arief Muhammad Arini Resti Fauzi Aris Tri Wahyudi ARIS TRI WAHYUDI Ayi Santika Ayi Santika Azfar Ismail Bako, Surandha Cahyawati, Nadia Citarasu, Thavasimuthu Claritha Madonsa Claritha Madonsa Darna Andrian Ramadhan DEDI JUSADI Destianingrum, Nurin Dalilah Ayu Dinamella Wahjuningrum Eddy Supriyono Efianda, Teuku Reza Emei Widiyastuti Enang Harris Enang Harris Enang Harris Endang Susianingsih Endang Susianingsih Endang Susianingsih Engelhaupt, Martin Fachriyan Hasmi Pasaribu Fachriyan Hasmi Pasaribu Fachriyan Hasmi Pasaribu Fadilah, Iin Nur Faoziyatunnisa, Nurul Fauzi, Arini Resti Filibertus Tantio Firdausi, Amalia Putri Fitriana Nazar Gustilatov, Muhamad Hamida Pattah Hamsah Hamsah Hary Krettiawan Hasan Nasrullah Hasan Nasrullah Hermawaty Abubakar Hessy Novita Hessy Novita Iis Sumartini Iman Rusmana Ince Ayu Khairana Kadriah Ince Ayu Khairana Kadriah Ince Ayu Khairani Kadriah Inem Ode Inka Destiana Sapitri Irzal Effendi Istiqomah, Amalia Julie Ekasari Ketut Sugama Ketut Sugama Khasanah, Noviati Rohmatul Kukuh Nirmala KURT HANSELMANN KURT HANSELMANN KURT HANSELMANN Kustiariyah Tarman La Ode Baytul Abidin La Ode Muhammad Arsal Laely Nuzullia Lili Sholichah Lilik Setiyaningsih Linuwih Aluh Prastiti M. Zairin Junior Majariana Krisanti Marini Wijayanti MARINI WIJAYANTI MARTIN ENGELHAUPT MIA SETIAWATI Mia Setiawati Mira Mawardi Mohammad Faizal Ulkhaq Muhammad Arif Mulya Muhammad Zairin Jr. Muhammad Zairin Jr. Muharijadi Atmomarsono Nababan, Yanti Inneke Nasrullah, Hasan Neltje Nobertine Palinggi Nugroho, Riyanto Nur Bambang Priyo Utomo Nuri Kamaliah, Syarifah Nuzullia, Laely Ode, Inem Pariakan, Arman Putra, The Best Akbar Esa Putri Shandra Ramhirez Putri, Shofii Amaliah Ramhirez, Putri Shandra Ranta Sumadi Rasidi Rasidi Rasidi Rasidi Ricko Reynalta Rini, Adityawati Fajar Ronald Kriston Sauttua Nainggolan Rr. Bellya Anasti Maharani S.H. Dwinanti Salamah Salamah Sefti Heza Dwinanti, Sefti Heza Soko Nuswantoro Sri Hariati Sri Nuryati Sudrajat, R Herman Sukenda Sukenda Sukenda Sukenda Sukenda, Sukenda, Suleman, Gabriella Augustine Syamsiar, Syamsiar Tambun, Andreas Taufiq Abdullah, Taufiq THOMAS HORATH Tri Heru Prihadi Tsani Untsa, Agista Usman Usman Usman Usman UTUT WIDYASTUTI WAODE MUNAENI WAWAN ABDULLAH SETIAWAN Wicaksono, Baref Agung WIDANARNI WIDANARNI Widanarni Widanarni WIDANARNI WIDANARNI Woro Nur Endang Sariati Yunarty Yunarty Yusli Wardiatno Zakki Zainun Zulfani, Anisa

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