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Andre Rachmat S
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Journal of Fish Health (JFH) Department of Aquaculture Faculty of Agriculture, Mataram University Jl. Pendidikan No. 37 Mataram, 83125
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Journal of Fish Health
Published by Universitas Mataram
ISSN : -     EISSN : 27982955     DOI : https://doi.org/10.29303/jfh.v2i2
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
The Journal of Fish Health (JFH) has an objective to publish and provide high-quality scientific contributions to the field of fish health. These contributions are sourced from innovative research that encourages science and technology development in the field of fish health on a national and international scale. This journal serves as a communication medium for researchers, academics, students, and communities. This journal is published two times a year in June and December. We accept review papers and full research articles. The Journal of Fish Health’s scope includes:  1. Fish Pharmaceutical 2. Fish Environmental Health 3. Microbiology 4. Biotechnology 5. Parasitology, etc. 6. Aquaculture 7. Management of Water Resources 8. Fishery Technology 9. Capture Fisheries Technology 10. Marine Science and Technology 11. Fisheries Agribusiness The Journal of Fish Health (JFH) accepts manuscripts written in English and Bahasa (Indonesian). The Journal of Fish Health (JFH) only processes submitted original script related to the scope of fish health and not being published by other publishers. The Journal of Fish Health (JFH) is jointly published by the Department of Aquaculture, Faculty of Agriculture, Mataram University. We strongly prefer to receive manuscripts via our online submission system. Using this system, authors can upload manuscript files (text, figures, and supplementary information) directly to our system and check on the status of their manuscripts during the review process. First, kindly please register as the author, and then you should log in to submit your papers. Please don´t forget to tick the author when you make a registration.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Perairan
Articles 240 Documents
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Development of a Community-Based Sustainable Coral Reef Ecosystem Conservation Model through the Integration of Local Wisdom and Scientific Approaches in North Lombok Regency Aryani Rahmawati; Lalu Achmad Tan Tilar Wangsajati Sukmaring Kalih; Hamid; Luh Gede Sumahiradewi; Sri Agustina; Ilham
Journal of Fish Health Vol. 6 No. 1 (2026): Journal of Fish Health
Publisher : Aquaculture Department, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/hamgmh29

Abstract

Coral reef ecosystems in North Lombok Regency are increasingly threatened by overfishing, destructive practices, pollution, and climate change, despite their vital role in supporting biodiversity and coastal livelihoods. This study aims to identify and analyze the ecological, socio-economic conditions, and local wisdom of coastal communities in the development of a community-based sustainable marine conservation model in North Lombok Regency. Sampling was conducted using purposive sampling on 50 respondents consisting of fishermen, marine tourism operators, and coastal communities involved in the utilization of marine resources. Data collection methods included field surveys, coral reef condition observations, water quality parameter measurements, and the distribution of questionnaires and in-depth interviews. Data analysis used a quantitative and qualitative descriptive approach integrated into the formulation of a conceptual model. The results showed that (1) live coral cover was in the good category, ranging from 60 to 70%, and was supported by relatively stable water quality parameters, (2) the community had a high level of economic dependence on marine resources, (3) local wisdom such as Awig-awig still plays a role in regulating resource use, but has not been systematically integrated with a scientific approach, and (4) the development of a conservation model that integrates quantitative biophysical data with social legitimacy based on local wisdom within the village institutional framework is considered feasible to implement. This model emphasizes the importance of community participation, regional policy support, technical assistance, and conservation-based economic incentives to ensure ecosystem sustainability and the welfare of coastal communities.
Characterization and Inventory of Ectoparasites in Cultivated Fish at the Aquaculture Technology Development Center (BPTPB) Cangkringan, Sleman, Special Region of Yogyakarta Safira, Ayu; Rahma, Mahdania Aulia; Salsabila, Sherly Naswa; Rahayu, Subekti; Ambarwati, Dewi; Ulkhaq, Mohammad Faizal
Journal of Fish Health Vol. 6 No. 2 (2026): Journal of Fish Health
Publisher : Study Program of Aquaculture, Department of Fisheries and Marine Science, Faculty of Agriculture, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jfh.v6i2.9836

Abstract

Fish farming has increased significantly compared to capture fisheries due to overfishing and the excessive exploitation of wild fish resources. However, the intensification of aquaculture systems is often followed by the emergence of various diseases, including ectoparasite infestations. Ectoparasites are important pathogens that can reduce fish productivity and health status. Their presence may cause clinical symptoms such as wounds and hemorrhages on the skin and gills, respiratory disorders, abnormal swimming behavior, and even mortality in fish. This study aimed to identify and inventory the types of ectoparasites infesting cultured fish at the Center for Aquaculture Technology Development (BPTPB) Cangkringan, Sleman, Special Region of Yogyakarta, and to determine their prevalence and intensity levels. The research applied a descriptive method through field observations and microscopic examinations, with scraping techniques performed on the skin, fins, and gills of fish. A total of 85 fish samples were examined, consisting of tilapia (n=20), carp (n=21), koi (n=24), and catfish (n=20). The results revealed six ectoparasite taxa infecting cultured fish: Trichodina, Gyrodactylus, Dactylogyrus, Ichthyophthirius multifiliis, Myxobolus, and Epistylis. Among these, Trichodina showed the highest prevalence and intensity, reaching 100% prevalence with an intensity of 840.5 parasite individuals per fish. In contrast, the lowest values were recorded for Gyrodactylus, with a prevalence of 4.76% and an intensity of 1 parasite individual per fish. These findings indicate the need for effective fish health management and parasite control strategies to prevent infections that may reduce aquaculture productivity.
Isolation and Molecular Identification of Pathogenic Bacteria in Giant Gourami (Osphronemus gouramy) Cultivated in Tamansari and Singasari Villages, Banyumas Regency Lenterani, Febiana; Purbomartono, Cahyono; Pratama, Ikhsan
Journal of Fish Health Vol. 6 No. 2 (2026): Journal of Fish Health
Publisher : Study Program of Aquaculture, Department of Fisheries and Marine Science, Faculty of Agriculture, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jfh.v6i2.9837

Abstract

Giant gourami (Osphronemus gouramy) is a freshwater fishery commodity with high economic value and is widely cultivated in Banyumas Regency. However, the emergence of diseases caused by pathogenic bacteria often becomes an obstacle in cultivation activities because it can reduce the survival rate and productivity of fish. This study aims to identify the types of pathogenic bacteria found in gouramy fish raised in Tamansari and Singasari Villages, Banyumas Regency. The research method was carried out by taking liver samples of gouramy fish which were then isolated on TSA media. Identification was carried out based on the morphological characteristics of bacterial colonies, the Gram KOH test, and molecular identification. The results showed that from both locations, several bacterial isolates were obtained with similar colony morphological characteristics, namely round (circular), small size, smooth edges, smooth surface, and cream color. The results of the Gram KOH test showed that all isolates were Gram-negative bacteria. Based on these characteristics, the isolates have similarities with the genus Acinetobacter which is often found as an opportunistic bacteria in freshwater fish. The results of molecular identification also showed that the bacteria obtained from the cultivated gouramy fish were Acinetobacter sp. This study provides a preliminary overview of the presence of opportunistic bacteria such as Acinetobacter sp., which have the potential to become pathogens in gourami when water quality conditions are unstable.
Identification and Characterization of Fungi Associated with Shrimp from Whiteleg Shrimp Ponds in East Java Zahroh, Fika; Lifani, Shierly Zaissiliya Clarissa; Rachmadhany, Rentienna; Safira, Ayu; Putri, Rama Nia Julia; Melati, Noerita Widya; Puspitasari, Yunita Ika Putri; Pardede, Maria Agustina
Journal of Fish Health Vol. 6 No. 2 (2026): Journal of Fish Health
Publisher : Study Program of Aquaculture, Department of Fisheries and Marine Science, Faculty of Agriculture, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jfh.v6i2.9838

Abstract

Fungal infections in shrimp are one of the main challenges in shrimp farming activities that have the potential to reduce productivity levels and crop quality. Fungi are known as opportunistic microorganisms that can cause serious problems, especially when pond environmental conditions are not supportive. Fungal attacks generally occur when shrimp experience physiological stress due to temperature fluctuations, changes in salinity, decreased water quality, or excessively high stocking densities. This study was conducted to identify and characterize the types of fungi associated with shrimp ponds in three main cultivation areas in East Java, namely Banyuwangi, Jember, and Gresik. The fungal isolation process was carried out using Sabouraud Dextrose Agar (SDA) media and incubated at 27°C. Morphological identification was carried out by observing the characteristics of colonies, the shape and color of hyphae, and the structure of conidia. The results of the observations obtained were 6 fungal isolates divided into two main groups, namely yeast including Candida sp., Rhodotorula sp., and Brettanomyces sp. The most commonly found mold species were Aspergillus flavus, Aspergillus fumigatus, and Aspergillus niger. The results of this study demonstrate the potential of fungal probiotics in shrimp farming ecosystems and serve as a basis for developing disease prevention strategies for whiteleg shrimp in East Java's shrimp ponds.
Study of the Presence of Streptococcosis in Tilapia Cultivation in Banyumas Regency Saputra, Kukuh Andre Setya; Purbomartono, Cahyono; Pratama, Ikhsan; Mulia, Dini Siswani; Rijal, Muhammad Azharul
Journal of Fish Health Vol. 6 No. 2 (2026): Journal of Fish Health
Publisher : Study Program of Aquaculture, Department of Fisheries and Marine Science, Faculty of Agriculture, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jfh.v6i2.9839

Abstract

Tilapia is the most widely cultivated fish in Banyumas which is susceptible to bacterial diseases caused by the increasing number of disease cases in tilapia (Oreochromis niloticus) due to high cultivation intensification. One of the diseases that often attacks is streptococcosis caused by the bacteria Streptococcus sp., which can cause mass mortality and major economic losses for farmers. The purpose of this study was to identify pathogenic bacteria in farmed tilapia in Banyumas. The method used in this study was a purposive sampling method, namely by taking samples of tilapia that have characteristics of disease symptoms such as protruding eyes, damaged fins, and red wounds on the scales from three locations, namely Beji Village, Karangsalam Village, and Pasir Wetan Village. Bacterial samples were obtained from four organs, namely the brain, kidneys, eyes, and liver, then observed the morphology of bacterial colonies and Gram KOH tests were carried out. The results showed that bacterial colonies found in most organs were round to irregular in shape, white to yellowish in color, and Gram positive, which shows the characteristics of Streptococcus sp. bacteria. Based on these results, it can be concluded that Streptococcus sp. bacteria are still the main threat in tilapia cultivation in Banyumas, so it is necessary to take preventive measures through the implementation of good biosecurity, the use of immunostimulants, and the development of vaccines to maintain the sustainability of tilapia cultivation businesses, especially in Banyumas Regency.
Trophic Structure and Vulnerability of Fish Species Exploited by Bottom Gillnet in the Coastal Waters of Lambur Luar Village, Jambi, Indonesia Magwa, Rizky Janatul; Khairunisa, Ade; Mairizal; Gelis, Ester Restiana Endang; Wulanda, Yoppie; Yunita, Lauura Hermala; Khaldun, Muhammad Hafidz Ibnu; Leni, Yusyam; Rolin, Febrina
Journal of Fish Health Vol. 6 No. 2 (2026): Journal of Fish Health
Publisher : Study Program of Aquaculture, Department of Fisheries and Marine Science, Faculty of Agriculture, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jfh.v6i2.9852

Abstract

Small-scale fisheries in coastal areas utilize various fishing gears, including bottom gillnet, which can catch fish species with different trophic levels. Fishing activities may influence the trophic structure of fish communities and the vulnerability of species to exploitation. This study aimed to analyze the trophic structure, vulnerability level, conservation status based on the IUCN Red List, and Mean Trophic Level (MTL) of fish species caught using bottom gillnet in the coastal waters of Lambur Luar Village, Tanjung Jabung Timur Regency. The study used a survey method with data collected through direct observation of fishermen's catches. Data analysis included catch species composition, trophic level values ​​obtained from the FishBase database, vulnerability analysis of each species, identification of IUCN conservation status, and calculation of Mean Trophic Level (MTL) based on the proportion of catch composition. The results showed that the catches consisted of 20 species, with trophic groups dominated by mesopredators (50%) and top predators (25%), while omnivores and herbivores were found in smaller proportions. Vulnerability analysis indicated that most species were categorized as having low to moderate vulnerability, although several species showed high vulnerability to fishing pressure. Based on the IUCN Red List, most species were classified as Least Concern (LC). The calculated Mean Trophic Level (MTL) was 3.2, indicating that the catches were dominated by mid-level carnivorous fish species.
Efficacy of Kremah (Alternanthera sp.) Leaf Extract in Reducing Methomyl-Induced Effects on Leukocyte Response in Nile Tilapia (Oreochromis niloticus) Fathiyah, Dinda Nurul; Ramadhani, Ayu Winna; Islamy, R Adharyan; Aisyah, Diana; Hasan, Veryl
Journal of Fish Health Vol. 6 No. 2 (2026): Journal of Fish Health
Publisher : Study Program of Aquaculture, Department of Fisheries and Marine Science, Faculty of Agriculture, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jfh.v6i2.9886

Abstract

Intensification of tilapia (Oreochromis niloticus) farming around agricultural land increases the risk of contamination by the toxic and genotoxic pesticide methomyl, which can trigger oxidative stress, and immune system disorders. The use of natural materials with antioxidant potential, such as kremah (Alternanthera sp.) leaf extract, is an alternative to mitigate these effects. This study was conducted to evaluate the effect of immersion in kremah leaf extract on the leukocyte differential of tilapia exposed to methomyl. A completely randomized design was applied, consisting of four treatments with three replications, namely control, and doses of 20, 30, and 40 ppm. The fish were exposed to 3.2 ppm methomyl for 96 hours and then immersed in the extract for 14 days. The observed parameters comprised leukocyte differential, clinical signs, and water quality, all of which were analyzed using one-way ANOVA followed by an LSD test (p < 0.05). The findings indicated that methomyl exposure led to an increase in monocytes while reducing lymphocyte levels. Immersed in 40 ppm extract for 14 days provided the best results by decreasing monocytes (4.00%), as well as increasing lymphocytes (82.00%) and hemoglobin levels to near normal. It was concluded that kremah leaf extract effectively mitigates oxidative stress and genetic damage caused by methomyl, with an optimal dose of 40 ppm for 14 days.
The Effect of Noni Fruit (Morinda citrofolia) on Controlling Argulus sp. in Common Carp (Cyprinus carpio) Chahyati, Dwi; Diniarti, Nanda; Rahmadani, Thoy Batun Citra
Journal of Fish Health Vol. 6 No. 2 (2026): Journal of Fish Health
Publisher : Study Program of Aquaculture, Department of Fisheries and Marine Science, Faculty of Agriculture, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jfh.v6i2.9944

Abstract

Argulus sp. is one of the ectoparasites that commonly infects common carp (Cyprinus common carpio) and can reduce fish health and productivity. One environmentally friendly control method is the use of natural ingredients such as noni fruit (Morinda citrofolia) which contains bioactive compounds that have antiparasitic properties. This study aimed to analyze the effect of noni fruit extract on the control of Argulus sp. in common carp and to determine the effective dosage for controlling the parasite. The study used an experimental method with a Completely Randomized Design (CRD) consisting of four treatments of noni fruit extract concentration: P1 (1%), P2 (2%), P3 (3%), and P4 (4%) with five replications. The observed parameters included fish survival rate, Argulus sp. mortality time, parasite mortality, prevalence, and intensity of parasite infestation. The result showed that the administration of noni fruit extract had a significant effect on mortality, prevalence and intensity of Argulus sp. infestation. The best treatment was obtained at a concentration of 2% (P2), with a fish survival rate of 100%, Argulus sp. mortality of 98,67%, prevalence of 4 %, and infestation intensity of 0.2 parasites each fish.
Sublethal Exposure to Polystyrene Microplastics Alters Swimming Behaviour and Reduces Survival of Whiteleg Shrimp (Litopenaeus vannamei) Saptatriani, Nurbaiti; Setyono, Bagus Dwi Hari; Mulyani, Laily Fitriani
Journal of Fish Health Vol. 6 No. 2 (2026): Journal of Fish Health
Publisher : Study Program of Aquaculture, Department of Fisheries and Marine Science, Faculty of Agriculture, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jfh.v6i2.9983

Abstract

Polystyrene microplastics (PS) in aquaculture systems may impair shrimp behaviour and survival, yet experimental evidence directly linking exposure intensity with easily observable behavioural indicators remains limited. This study evaluated the effects of sublethal PS exposure on swimming behaviour and survival of whiteleg shrimp during a 45-day rearing period. A completely randomized design was applied using four treatments: 0, 10, 20, and 30 mg/L PS, each with three replicates. PL-30 whiteleg shrimp were stocked at 20 individuals per 20-L container. Swimming behaviour was repeatedly assessed using three categories: BN (normal swimming), BL (weak swimming), and BL;DD (weak swimming with bottom-resting tendency). Survival data were analysed using ANOVA followed by Duncan’s multiple range test at a 5% significance level, whereas behavioural observations were interpreted descriptively. Behavioural deterioration followed a consistent dose-related pattern. The control group remained normal throughout the observation period, while the 20–30 mg/L treatments shifted earlier toward BL and BL;DD. Survival was highest in the control (73.33 ± 5.77%) and declined to 31.67–36.67% in PS-exposed groups. ANOVA indicated a significant treatment effect on survival (F(3,8) = 28.263; p < 0.001), and Duncan’s test separated the control from all exposed treatments, whereas the 10–30 mg/L treatments remained in the same homogeneous subset. Because water quality remained within an acceptable range, the behavioural shift and reduced survival were more plausibly linked to PS exposure than to deterioration in rearing conditions. These findings highlight swimming behaviour as a practical early-warning indicator in shrimp culture exposed to microplastics.
Potential of Halophilic Bacteria from Hypersaline Waters to Reduce Polyethylene Microplastic Abundance in Artemia sp. Culture: A Preliminary Indication of Degradation Based on Gravimetric Weight Loss Al Humaero, Nanda Wahyuni; Amir, Sadikin; Setyono, Bagus Dwi Hari
Journal of Fish Health Vol. 6 No. 2 (2026): Journal of Fish Health
Publisher : Study Program of Aquaculture, Department of Fisheries and Marine Science, Faculty of Agriculture, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jfh.v6i2.10038

Abstract

Polyethylene (PE) microplastic contamination in aquaculture systems can increase plastic particle exposure in zooplankton, including Artemia sp., while also elevating the risk of biological disturbance in cultured organisms. This study evaluated the potential of halophilic bacteria isolated from hypersaline waters to reduce PE microplastic abundance in Artemia sp. and to provide a preliminary indication of PE degradation based on gravimetric weight loss. A completely randomized design with six treatments and three replications was applied: P0 (without microplastics and bacteria), KN (PE 2 mg/L), KP (bacteria 106 CFU/mL), P1 (PE 2 mg/L + bacteria 106 CFU/mL), P2 (PE 2 mg/L + bacteria 107 CFU/mL), and P3 (PE 2 mg/L + bacteria 108 CFU/mL). The primary response variables were microplastic abundance in Artemia sp. and PE degradation efficiency, whereas growth, survival, and water quality were treated as supporting variables. The treatments significantly affected microplastic abundance in Artemia sp. KN produced the highest abundance (0.1100 particles/individual), whereas bacterial addition reduced the value to 0.0267 particles/individual in P1, 0.0267 in P2, and 0.0467 in P3. PE weight loss ranged from 20.0% to 31.1%, with the highest value recorded in P1. These findings suggest that a halophilic bacterial inoculum of 106 CFU/mL was the most promising level for early-stage PE bioremediation in Artemia culture systems. Nevertheless, because degradation was assessed only by gravimetric loss, the result should be interpreted as a preliminary indication and still requires abiotic controls, SEM, and FTIR confirmation.

Page 24 of 24 | Total Record : 240

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