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Fakultas Ilmu Kedokteran Kesehatan dan Ilmu Alam(FIKKIA) Universitas Airlangga. Jl. Wijaya Kusuma No. 113, Kec. Giri, Kabupaten Banyuwangi, Jawa Timur, Indonesia 68425
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Journal of Aquaculture Science
Published by Universitas Airlangga
ISSN : 25500910     EISSN : 25794817     DOI : https://doi.org/10.20473/joas.v11i1.82312
Core Subject :
The Journal of Aquaculture Science (JoAS) is a medium for exchanging information and scientific work in the field of Aquaculture published by the Aquaculture Study Program, Faculty of Health, Medicine, and Life Sciences (FIKKIA) Airlangga University at Banyuwangi. Published scientific works include fish culture, reproduction, fish disease, fish nutrition, aquaculture environment, and biotechnology. 
Arjuna Subject : -
Articles 158 Documents
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Mapping the Level of Macrobenthic Diversity to Evaluate Environmental and Ecosystem Disturbances Shinta Hiflina Yuniari; Akbar Sandi Wijaya; Agus Fani Faisol
Journal of Aquaculture Science Vol 10 No 2 (2025): Journal of Aquaculture Science
Publisher : Airlangga University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/joas.v10i2.77489

Abstract

Pangpang Bay is used by the local community for aquaculture, traditional fishing and crabbing, drift net cage farming, and ecotourism. Macrobenthos, as key organisms in the food web and bioindicators of pollution due to their sessile nature and varying adaptability, were studied to assess the bay’s ecological health. This research aimed to map macrobenthic diversity (Shannon-Wiener Diversity Index, Evenness Index, and Simpson Dominance Index) to evaluate environmental disturbance levels. This research was conducted from June to July 2025. Using purposive sampling, twelve observation stations were established across the bay, from the periphery to the central zone. Data were analyzed descriptively and visualized spatially via GIS (ArcGIS). This study recorded 33 macrobenthic species representing four classes and 25 families. Species richness varied considerably among stations, ranging from 5 species (Stations 5 and 9) to 22 species (Station 12). Results showed moderate pollution levels: Shannon-Wiener Index (1.0 ≤ H’ ≤ 3.0) indicated intermediate diversity, consistent with moderately polluted waters. The Evenness Index (e ≈ 1) revealed high uniformity, with no dominant species, suggesting balanced species distribution. Similarly, the Simpson Dominance Index (D ≈ 0) confirmed the absence of dominance, aligning with high evenness. Overall, the study classifies Pangpang Bay as moderately polluted based on macrobenthic indices, highlighting the need for sustainable management to mitigate further degradation.
Identification of Vibrio Species and Total Vibrio Count in Kidney Tissue of Humpback Grouper (Cromileptes altivelis) Reared at Different Stocking Densities in Pond-Based Net Cages Nafila Junia Azadia; Gunanti Mahasri; Abdul Manan
Journal of Aquaculture Science Vol 11 No 1 (2026): Journal of Aquaculture Science
Publisher : Airlangga University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/joas.v11i1.78913

Abstract

The humpback grouper (Cromileptes altivelis) is a high-demand grouper species, both domestically and internationally. However, the utilisation of this cultivation system still faces obstacles, especially in the field of disease. This research was conducted to determine the total Vibrio count (TVC) and identify Vibrio species in the kidney tissue of humpback grouper reared with different stocking densities in pond-based net cages. The TVC examination method was carried out using serial dilution and grown on selective TCBS media. Bacterial identification was carried out by observing colony colour, Gram staining, and biochemical tests (catalase, SIM, TSIA, OF, and MRVP test). The results show that the highest TVC value was obtained from high-density treatment (1.9 × 104 CFU/g), meanwhile, the lowest TVC value was obtained from normal-density treatment (0.1 × 101 CFU/g). The results of bacterial identification showed that 3 of the 5 isolates obtained during the study (V1, V2, V4) were similar to V. fluvialis, V. alginolyticus, and V. parahaemolyticus based on biochemical tests. This study concluded that Vibrio bacteria similar to V. fluvialis, V. alginolyticus, and V. parahaemolyticus were found in the kidneys of grouper fish cultured at different stocking densities in net cages, and that the TVC values remained within the normal range.
Optimized Dunaliella salina-Salvinia molesta Probiotic Feed Enhances Hemocyte-Mediated Immunity of Litopenaeus vannamei under Taura Syndrome Virus Challenge Ryan Adi Taufiqurrahman; Reza Adrio Farezi; Fitri Khairunisa; Sabitha Helmi; Ratih Novita Praja; Arend Stam
Journal of Aquaculture Science Vol 11 No 1 (2026): Journal of Aquaculture Science
Publisher : Airlangga University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/joas.v11i1.82312

Abstract

Taura Syndrome Virus (TSV) is one of the diseases that is capable of causing mass mortality ranging from 40% to 90% during the post-larval and juvenile stages of vannamei shrimp. The prevention of viral diseases in shrimp generally relies on antibiotics or vaccines, but it's still not effective. The use of probiotic feed containing extracts from Dunaliella salina and Salvinia molesta can enhance shrimp immunity. This research aims to determine the optimization of D. salina and S. molesta carotenoids as an effective alternative for preventing Taura Syndrome Virus (TSV) based on in vivo test results. The methods used for this research are carotenoids from D. salina, which were extracted at peak density (day 6) using solvent extraction, while β-carotene was extracted by maceration using n-hexane for 24 hours under dark conditions. The obtained extract was stabilized with NaHCO₃ and further processed for microencapsulation. Biomass was Shrimp were given various feed formulations: F1 (conventional feed + injected with PBS solution 0.1 ml), F2 (conventional feed), F3 (1:1), F4 (1:2), F5 (2:1), all groups were exposed to 0.1 ml TSV virus, except F1.  Therefore, F4 was selected as the best formulation, as it was most effective in improving growth performance and survival rate, as well as acting as an immunostimulant by increasing hyaline, granular, and semi-granular cells based on in vivo test results.
An Overview of Smart Aquaculture: IoT-Based Domestication Strategies for the Channa Genus Rizal Akbar Hutagalung; Muhammad Fitri Yusof; Celestino da Cunha Barreto
Journal of Aquaculture Science Vol 11 No 1 (2026): Journal of Aquaculture Science
Publisher : Airlangga University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/joas.v11i1.86416

Abstract

Aquaculture continues to expand as a key contributor to global food security, yet the domestication of biologically sensitive and behaviorally aggressive species remains a major constraint in production systems. The genus Channa (snakehead fish) represents a high-value freshwater taxon whose culture development is limited by physiological sensitivity to environmental fluctuations, pronounced intra-specific aggression, and feeding instability under captive conditions. This overview summarizes the latest literature on the application of Internet of Things (IoT) technology in aquaculture and explores the consistency of this trend in other species, which may be relevant to the challenges of domestication in Channa. Previous studies on IoT use show that IoT-based systems are primarily used for real-time water quality monitoring and precision feeding management. Continuous monitoring of water quality using IoT provides better environmental stability, earlier detection of deviations, and reduced losses from stress compared to conventional manual observation. Simultaneously, automated and sensor-supported feeding strategies demonstrate improved feed conversion efficiency, reduced feed waste, and better regulation of feeding frequency. The literature as a whole shows that aquaculture is evolving towards more modern, controlled, technology- and data-based systems that are more efficient in resource use. Although empirical validation in Channa culture systems remains limited, further controlled experimental studies are required to assess the applicability of IoT-based management strategies in this genus.
Phenotypic Variation and Growth Performance of offsprings Betta splendens Generations from Crown Tail and Double Tail Hybridization Darmawan Setia Budi; Diki Firdiansyah; Akhmad Taufiq Mukti
Journal of Aquaculture Science Vol 11 No 1 (2026): Journal of Aquaculture Science
Publisher : Airlangga University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/joas.v11i1.88935

Abstract

Betta fish (Betta splendens) are ornamental fish with a long history of domestication and selective hybridization aimed at enhancing phenotypic variation. This study aimed to evaluate the effect of reciprocal hybridization between crowntail (CT) and doubletail (DT) strains on the phenotypic variation of the offspring. Four breeding combinations were applied: TA (CT♂ × CT♀), TB (DT ♂ × DT ♀), TC (CT♂ × DT♀), and TD (DT♂ × CT♀), representing intra- and inter-strain crosses between crowntail (CT) and doubletail (DT) broodstock. The experiment was conducted for 75 days, from spawning to juvenile rearing. Observed parameters included meristic and morphometric characteristics, coloration, growth performance, and survival rate of the offspring. The results indicated that reciprocal hybridization significantly affected the observed parameters. Male and female offspring from treatments TC (0.99681) and TD (0.99709) showed closer correlations with control TA (CT♂ × CT♀) in meristic characters. In terms of morphometric traits, male offspring from treatments TC (0.99054) and TD (0.98765) were more closely associated with treatment TA, whereas female offspring showed a stronger correlation with treatment TD. Hybridization between crowntail and doubletail white platinum strains produced novel color variations, including platinum-red and platinum-silver phenotypes. Furthermore, the growth performance of reciprocal hybrids differed significantly (p < 0.05) from that of the control groups. These findings demonstrate that reciprocal crossing between crowntail and doubletail strains influences phenotypic expression in offspring.
Phytoplankton Productivity and Abundance in Three Main River Estuaries of Muncar Fishing Harbor, Banyuwangi, East Java, Indonesia Lutviana Dewi; Alin Asyabil; Rahmi Valina; Damai Diniariwisan
Journal of Aquaculture Science Vol 11 No 1 (2026): Journal of Aquaculture Science
Publisher : Airlangga University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/joas.v11i1.89060

Abstract

The rapid development of industry and aquaculture in the coastal waters of Muncar has increased the amount of organic and inorganic pollutants entering the area. However, data on water quality in this region are rarely available. This study was conducted at three major river estuaries—Muara Kalimoro, Muara Wagud, and Muara Stail—using phytoplankton as bioindicators. Sampling was conducted over three months (March–April) using a plankton net (25-mesh size). This study identified four classes of phytoplankton: Chlorophyceae (2 genera), Bacillariophyceae (5 genera), Cyanophyceae (1 genus), and Eustigmatophyceae (1 genus). During observations in March, the highest variation and evenness indices (1.69 and 1.06) were recorded at Stations 3 and 2, respectively (0.94 and 0.86). However, in February and March, the highest dominance index was recorded at Stations 2 and 3, with Chlorella being the most abundant genus at all three locations, at 31,250 L⁻¹. The Muncar River estuary was classified as moderately contaminated (β meso-saprobic). These findings indicate that dissolved organic matter content influences phytoplankton community dominance. Specifically, the continuously increasing anthropogenic nutrient load risks disrupting the stability of phytoplankton dynamics, potentially triggering single-species dominance and degrading the quality of estuarine ecosystems in tropical waters. These results suggest that phytoplankton dynamics can serve as an effective early warning system for detecting anthropogenic pressures in tropical estuarine ecosystems.
Effects of Corn Oil Supplementation on Gonad Maturation, Gonadosomatic Index, And Fecundity in Silver Rasbora (Rasbora Argyrotaenia) Elsa R. A. Audina; Farida Mauludia; Akhmad T. Mukti; Nur Rohmah Heny Handayani
Journal of Aquaculture Science Vol 11 No 1 (2026): Journal of Aquaculture Science
Publisher : Airlangga University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/joas.v11i1.89070

Abstract

A 42-day experiment was conducted to determine the effects of corn oil supplementation on gonadal maturity, gonadosomatic index, and fertility in Rasbora argyrotenia broodstock. The experiment used a completely randomized design with three treatments and five replicates. The doses administered were: Treatment 1 (T1): 20 mL/kg of feed, Treatment 2 (T2): 25 mL/kg of feed, and Treatment 3 (T3): 30 mL/kg of feed. Fish (6.87 ± 0.42 cm) were reared in 25-liter aquariums at a density of 1 fish per liter. Supplementation of corn oil at a dose of 30 mL/kg of feed showed significant effects on gonadal maturity (70% reached stage IV), gonadosomatic index (11.58 ± 2.57), and fecundity (998.39 ± 9.06 eggs). Higher doses of corn oil were directly proportional to the gonadosomatic index and the number of eggs produced by R. argyrotaenia broodstock. The supplementation of corn oil in the diet significantly improved the reproductive performance of the wader pari fish, making it a viable nutritional strategy to optimize the production of R. argyrotaenia.
Physiological Adaptation of Limnobium laevigatum in Palm Oil Mill Effluent (POME) for Enhanced Phytoremediation Efficiency Dahlia Wulan Sari; Widya Rahayu; Dwi Retna Kumalaningrum
Journal of Aquaculture Science Vol 11 No 1 (2026): Journal of Aquaculture Science
Publisher : Airlangga University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/joas.v11i1.89103

Abstract

The study aimed to evaluate a stepwise adaptation approach to improve process efficiency and operational resilience of Limnobium laevigatum in a palm oil mill effluent (POME) treatment system. The acclimatization treatments involved using POME concentrations of 50% and 75% for 6 days. The parameters observed were biomass productivity, morphological response, and levels of phosphate, nitrate, ammonia nitrogen, and chemical oxygen demand (COD). Through a gradual adaptation process, the system demonstrated significantly more stable performance. This is evident from biomass growth (71.0 ± 4.7%), the number of leaves (88.6 ± 2.8%), and shoot production (211.1 ± 19.2%). Although root length decreased by 38.0 ± 16.2% at a 75% concentration, L. laevigatum was still able to effectively filter pollutants. The removed pollutants included phosphate (23.7 ± 1.3%), nitrate (30.1 ± 8.1%), ammonia nitrogen (4.6 ± 1.9%), and COD (20.8 ± 2.3%). These findings indicate that multilevel adaptation enhances the treatment efficiency and operational resilience of L. laevigatum under high-concentration POME conditions. This approach provides a practical and scalable strategy for optimizing macrophyte-based wastewater treatment systems, particularly for agro-industrial wastewater rich in organic matter.

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