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INDONESIA
Indonesian Aquaculture Journal
Published by Kementerian Kelautan dan Perikanan RI
ISSN : 02150883     EISSN : 25026577     DOI : -
Core Subject : Science, Agriculture,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology
Indonesian Aquaculture Journal is a peer-reviewed and open access journal based in Indonesia that globally/internationally accepts and publishes scientific articles in the field of aquaculture. The journal is hosted and managed by the Center for Fisheries Research, Indonesian Ministry of Marine Affairs and Fisheries and serving as a scientific platform to share research information in and contribute to the development of various disciplines of aquaculture including genetics, reproduction, nutrition and feed, fish health and diseases, engineering, and environmental assessment.
Arjuna Subject : -
Articles 344 Documents
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DIFFERENT LED LIGHT EFFECT ON GONAD MATURATION AND GENE EXPRESSION IN FEMALE SYNODONTIS BROODSTOCKS (Synodontis sp.) Sinansari, Shofihar; Sudrajat, Agus Oman; Arfah, Harton; Alimuddin, Alimuddin; Kusrini, Eni; Carman, Odang
Indonesian Aquaculture Journal Vol 19, No 2 (2024): (December, 2024)
Publisher : Agency for Marine and Fisheries Extension and Human Resources

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/iaj.19.2.2024.179-187

Abstract

The study investigated the influence of the different LED light spectrums on the maturation of the gonads in female synodontis broodstock and examined the maturation-related gene expression levels. Female synodontis were exposed to four different LED light spectra, specifically: white, blue, green, and red, for a continuous period of 120 days rearing. This study employed a completely randomized design, consisting of four treatments and five individual fish as replication for each treatment. An analysis was conducted on the gonadosomatic index (GSI), hepatosomatic index (HSI), gonad histology, estradiol levels, kiss2 and gnrh2 mRNA expression levels. The utilization of blue LED light treatment is highly effective in enhancing the reproductive parameters in female synodontis fish. The results show that brain and gonad kiss2 mRNA expression levels are not significantly different (P<0.05), while gnrh2 mRNA expression levels were significantly different (P<0.05) and had the highest expression in the gonads. The results suggest that light exposure can induce changes in the expression levels of kiss2 and gnrh2 mRNA, as well as control reproduction.
CALLUS INDUCTION IN Kappaphycus alvarezii USING INDOLE-3-ACETIC ACID (IAA) and 6-BENZYLAMINOPURINE (BAP) FOR SEEDSTOCK DEVELOPMENT Mulyono, Mugi; Salsabila, Mutia Safa; Rasnijal, Muhammad; Fadilah, Siti; Putra, Angkasa
Indonesian Aquaculture Journal Vol 20, No 1 (2025): (June, 2025)
Publisher : Agency for Marine and Fisheries Extension and Human Resources

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/iaj.20.1.2025.1-10

Abstract

The commercially important red seaweed Kappaphycus alvarezii is extensively cultivated for carrageenan production. Despite its economic value, large-scale reproduction and genetic enhancement remain limited due to its low regeneration potential. This study aimed to optimize plant growth regulator (PGR) concentrations for efficient callus induction in K. alvarezii. A completely randomized design was employed, comprising five treatments with varying concentrations of indole-3-acetic acid (IAA) and 6-benzylaminopurine (BAP), along with a control lacking PGRs. A total of 180 explants from meristematic tissues of acclimatized thalli were cultured (30 explants per treatment). The highest callus induction rate (88%) was achieved with 1.50 mg/L IAA and 5 mg/L BAP (Treatment F), with visible callus formation beginning around day 38. A progressive color change from brown to white was observed, indicating active cellular proliferation. Other treatments exhibited lower induction rates, ranging from 0% (control) to 61% (Treatment D). These findings underscore the critical influence of auxin–cytokinin interactions on callogenesis and offer an optimized hormonal regime for improving in vitro culture efficiency. The established protocol provides a valuable platform for future large-scale propagation and genetic improvement strategies in K. alvarezii, contributing to the advancement of seaweed biotechnology.
MORPHOMETRIC AND MOLECULAR VARIATION OF NEON TETRA FISH (Paracheirodon innesi) FROM BOJONGSARI DISTRICT, INDONESIA Musthofa, Siti Zuhriyyah; Alimuddin, Alimuddin; Arfah, Harton; Sulistyowati, Dinar Tri; Carman, Odang; Kusrini, Eni
Indonesian Aquaculture Journal Vol 19, No 2 (2024): (December, 2024)
Publisher : Agency for Marine and Fisheries Extension and Human Resources

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/iaj.19.2.2024.133-145

Abstract

Neon tetra, Paracheirodon innesi, is endemic to rivers and streams in southeastern Colombia, eastern Peru, and western Brazil and is commercially traded as aquarium fish in the world. In Indonesia, neon tetras were mass produced in Bojongsari District, Depok, West Java as the centre of neon tetra fish production. Understanding their genetic variation is useful for implementing their selective breeding programs, environmental restoration, and estimating genetic contributions in stocks. The current study aimed to investigate the patterns of morphometric and molecular diversity using randomly amplified polymorphic DNA-polymerase chain reaction techniques among farmed broodstocks of P. innesi in Indonesia. Three populations, namely: the Bojongsari, Curug, and Pondok Petir derived from the Bojongsari District, Depok, west Java, were used in the study. Thirty live fish from each location were analyzed based on 25 truss morphometric characters. Sixty fresh fish samples were obtained for DNA analysis using the RAPD-PCR technique, which uses three random primers. Principal component analysis (PCA) was performed to distinguish morphometric variations among populations. Morphological and molecular analysis displayed a similar result that Bojongsari and Pondok Petir neon tetra fish had high similarities, while Curug neon tetra was distinguished from others. The closest genetic distance was between the Pondok Petir and Curug populations (0.4088), while the farthest genetic distance was between the Curug and Bojongsari populations (0.4138). The results will be useful in developing breeding programs to improve broodstock quality.
SPECIES IDENTIFICATION AND GENETIC DIVERSITY OF PORTUGUESE OYSTER (Crassostrea angulata): IMPLICATIONS FOR BREEDING IN VIETNAM Nguyen, Luan Thanh; Nguyen, Thong Hoang; Nguyen, Loc Hong; Le, Nguyen Hoang Khoi; Nguyen, Suong Thao; Nguyen, Thanh Minh; Nguyen, Tri Nhu; Nguyen, Sang Van
Indonesian Aquaculture Journal Vol 20, No 1 (2025): (June, 2025)
Publisher : Agency for Marine and Fisheries Extension and Human Resources

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/iaj.20.1.2025.75-86

Abstract

Cupped oyster has emerged as the predominant mollusk farmed domestically in Vietnam because of its exceptional adaptability to the local subtropical and tropical climates. However, considerable confusion remains regarding the identity of the cultivated species due to the taxonomic ambiguity between Portuguese cupped oyster (Crassostrea angulata) and Pacific cupped oyster (Crassostrea gigas). This study aims to clarify the species identity of the most commonly farmed cupped oysters in Vietnam and to evaluate genetic diversity and the suitability of oyster strains for a breeding program including three Vietnamese strains (Quang Ninh, Khanh Hoa, and Vung Tau) and one wild population from Taiwan. Based on mitochondrial DNA cytochrome c oxidase subunit I (COI) sequences, our results confirmed that all samples in Vietnam and Taiwan are C. angulata. Furthermore, this study performed genetic analyses using mtCOI sequences and five microsatellites. Populations in Vietnam and Taiwan maintain high levels of genetic diversity, with the average number of alleles per population varied between 7.80 to 16.0, and there was no statistical difference between observed and expected heterozygosity (P > 0.05), except in the hatchery population Vung Tau. The samples collected from this population suffered a great loss of heterozygosity and occupied the highest Fis value (Fis = 0.3), which is likely due to the small size of founding stock and long-term artificial breeding by local hatchery farmers, resulting in a strong genetic bottleneck and inbreeding depression. Pairwise FST calculated by microsatellites with a range of 0.043 to 0.093 revealed significant (P < 0.05) levels of genetic differentiation among oyster lines. Collectively,  our findings clarify the taxonomic status of farmed oysters in Vietnam and highlight the importance of crossing among different strains in future breeding programs to maximize the genetic gain and avoid inbreeding, especially when using the oyster strain from Vung Tau.
OPTIMIZATION OF MUSTIKA COMMON CARP CULTURE TO INCREASE FISH FARMERS’ INCOME IN BANGKINANG, KAMPAR: A PRODUCTIVITY AND ECONOMIC ANALYSIS Himawan, Yogi; Ariyanto, Didik; Suharyanto, Suharyanto; Palimirmo, Flandrianto Sih
Indonesian Aquaculture Journal Vol 20, No 2 (2025): (December, 2025)
Publisher : Agency for Marine and Fisheries Extension and Human Resources

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/iaj.20.2.2025.123-132

Abstract

A trial of common carp culture using a selected population was conducted in Bangkinang, Kampar Regency, Riau Province. This research aims to develop the socio-economic aspects of rural society, especially among common carp farmers in this area. The main material used was the Mustika common carp, a selected common carp population renowned for its disease resistance and fast growth. A local common carp population obtained from local hatcheries was used for comparison. The individual size of fish stocked was 10-15 grams. A total of six units of static net cages in the Kampar River and six units of floating net cages in the Kotopanjang Reservoir were used for triplicate culturing fish. The trial culture was conducted for 12 weeks. The results showed that Mustika common carp performed significantly better than local common carp, as indicated by high survival rates, growth rates, and individual harvested weights. The harvested yield, FCR, and productivity of Mustika common carp were also better than those of the local common carp. From an economic perspective, the used of Mustika common carp in both trial sites yielded higher margins and benefit-cost (B/C) ratios, faster in term of returns on investment (RoI) and payback periods (PP), and potentially increasing fish production by approximately 4.45% annually than local common carp. These results suggest that cultivating the Mustika common carp was more feasible for farmers in the area. The study highlights the need for high-quality fish seeds and advocates for collaboration between the government and private sectors to enhance common carp farming and improve the socio-economic levels of rural communities.
PRODUCTION PERFORMANCE AND FINANCIAL ANALYSIS OF GLASS EEL (Anguilla bicolor) NURSERY AT DIFFERENT STOCKING DENSITIES USING RAS Aslia, Aslia; Budiardi, Tatag; Hadiroseyani, Yani; Diatin, Iis
Indonesian Aquaculture Journal Vol 20, No 2 (2025): (December, 2025)
Publisher : Agency for Marine and Fisheries Extension and Human Resources

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/iaj.20.2.2025.197-208

Abstract

Eel aquaculture remains dependent on wild-caught glass eels, whose supply fluctuates seasonally and peaks during the rainy season. Improving nursery efficiency through optimized stocking density is therefore essential. This study evaluated the effects of three stocking densities (1, 2, and 3 g L-¹) on the production performance and financial feasibility of glass eel (Anguilla spp.) nursery operations in recirculating aquaculture systems (RAS). Stocking density significantly affected survival, biomass yield, and profitability (p < 0.05). The highest density (3 g L-¹) resulted in the lowest survival rate (35.69 ± 3.70%), which was significantly lower than both 1 g L-1 and 2 g L-¹, yet produced the greatest biomass (11.42 ± 0.57 g L-¹). Financial analysis showed that all treatments were viable, with 3 g L-¹ yielding the highest profit (IDR 378,035,622 ± 45,089,672). Despite reduced survival, profitability remained relatively stable across treatments, indicating that biomass gain compensated for mortality-related losses. These findings demonstrate that a stocking density of 3 g L-1 provides the most advantageous balance between production output and economic return for glass eel nursery operations in RAS.
EFFECT OF NEGATIVE REDOX POTENTIAL OF DRY SEDIMENT ON THE INFECTIVITY OF Vibrio parahaemolyticus, GROWTH AND HEALTH STATUS OF PACIFIC WHITELEG SHRIMP Putri, Shofii Amaliah; Sukenda, Sukenda; Yuhana, Munti; Nirmala, Kukuh
Indonesian Aquaculture Journal Vol 20, No 2 (2025): (December, 2025)
Publisher : Agency for Marine and Fisheries Extension and Human Resources

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/iaj.20.2.2025.133-144

Abstract

Sediment serves as a site for the accumulation of aquaculture waste. Oxidation-Reduction Potential (ORP) is an index indicating anaerobic conditions. A combination of host, pathogen, and suboptimal environmental quality can lead to disease outbreaks. One such disease is Acute Hepatopancreatic Necrosis Disease (AHPND), caused by Vibrio parahaemolyticus. This study was aimed to analyse the impact of sediment drying on infectivity of V. parahaemolyticus growth and health status of Pacific whiteleg shrimp. The sediment ORP used at the initial study was -37 mV. The sediment was dried for 120 hours at a temperature of 40.75 ± 2.73 °C. A total of 15 shrimp/aquarium with an average body weight of 2.35±0.22 g/individual were reared in aquarium sized 20x25x30 cm3 containing dried and undried sediment for 120 hours, then contaminated with 105 CFU/mL V. parahaemolyticus through immersion from the start of rearing until 20 days later. The results showed that sediment drying was able to reduce bacterial abundance and increase ORP sediment. The longer duration of cultivation, the more the sediment ORP decreased. Sediment ORP decreased with increasing shrimp farming duration. The highest bacterial abundance in the sediment on thrid phase of study was observed in the positive control treatment on D+10 ((2.02±0.39)x104 CFU/g), then it decreased until the end. Meanwhile, bacterial abundance in water and hepatopancreas decreased until the end of the study. Survival rates, immune responses, and growth parameters of shrimp with sediment drying were higher than the positive control (p<0.05) but not significantly different from the negative control. The histopathology of shrimp hepatopancreas profile in the sediment drying treatment was better compared to the positive control.
IMPACT OF PROTEIN AND PROBIOTIC SUPPLEMENTATION ON IMMUNITY AND SURVIVAL OF Clarias gariepinus UNDER PATHOGEN CHALLENGE IN AQUACULTURE Admasu, Firew; Wakjira, Mulugeta; Bayissa, Tokuma Negisho; Bacha, Ketema
Indonesian Aquaculture Journal Vol 20, No 2 (2025): (December, 2025)
Publisher : Agency for Marine and Fisheries Extension and Human Resources

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/iaj.20.2.2025.185-195

Abstract

Bacterial infections, particularly those caused by Pseudomonas aeruginosa, pose a threat to aquaculture and lead to economic losses in African catfish (Clarias gariepinus). This study evaluates the effects of dietary protein and probiotic supplementation on fish health, growth performance, and survival following P. aeruginosa infection, using both in vitro and in vivo approaches. The in vitro assays determined the infective dose of P. aeruginosa and its interactions with probiotics. At the same time, in vivo trials assessed survival, behavioral responses, feed utilization efficiency, and pathological changes over 72 hours. Furthermore, fish were fed varying protein levels (35%, 40%, and 45%) and probiotic concentrations (1:2:3 ratio) for two months before being challenged with bacteria. Higher protein (40–45%) and probiotic supplementation (2–3 mL) significantly improved survival rates (up to 83.33%), reduced weight loss, and mitigated organ damage as opposed to groups with lower supplementation (50% survival), though lower than the uninfected controls (100% survival). The improved survival and reduced pathological damage in probiotic-supplemented fish suggest a potential enhancement of immune defense mechanisms and overall physiological resilience. Probiotics have been reported to modulate immune responses by promoting beneficial microbiota, competing with pathogens, and supporting host immunity, which may contribute to the observed protective effects. Additionally, probiotic-fed groups exhibited improved water quality with lower accumulation of nitrogenous waste in infected tanks. These findings suggest that protein- and probiotic-enriched diets enhance disease resilience, feed efficiency, and water quality in aquaculture, supporting sustainable fish production through nutritional and health improvement. Future research is recommended to investigate immune-related biomarkers to better understand the immune-modulatory effects of these dietary interventions.
IMAGE PROCESSING METHOD TO DETECT THE POSITION OF VANNAMEI SHRIMP IN MUDDY WATERS Waryanto, Waryanto; Setiawan, Joga Dharma; Arianto, Mochammad; Sedayu, Bakti Berlyanto; Hartanti, Ninik Umi; Suyono, Suyono; Dina, Karina Farkha; Alamsyah, Heru Kurniawan; Aziz, Hozin; Taukhid, Imam; Supriyanto, Supriyanto; Zulkarnain, Riza; Siregar, Zaenal Arifin
Indonesian Aquaculture Journal Vol 20, No 2 (2025): (December, 2025)
Publisher : Agency for Marine and Fisheries Extension and Human Resources

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/iaj.20.2.2025.145-156

Abstract

One way to help the feeding process vannamei shrimp in ponds that have cloudy surface using constructed with a size of 50 × 50 × 18 cm with a water height in the pond of 7 cm from bottom, where the data in the form of images was obtained from data collection 25 times using a camera is placed at a height of 52 cm above the water surface. The pond’s entire surface was captured with one click of the camera. The number of vannamei shrimp used in this study was 7. The method used for data processing is thresholding, in which the threshold value is generated using a histogram-based technique from the image data. This method is employed to distinguish shrimp from non-shrimp regions in the image. From this study, a vannamei shrimp detection technique was developed, producing results in the form of a script that distinguishes vannamei shrimp objects from non-vannamei shrimp. The detection accuracy achieved using the thresholding method in this study is 94.28%. The positions of the shrimp were produced in the form of coordinates as a step to success according to the objectives of this study, which were able to detect positions, in order to help facilitate the process of feeding in ponds. This detection technique could be developed for application on full-scale ponds, utilizing cameras mounted on drones as a tool for detecting vannamei shrimp positions in cloudy pond water. This technology may be adapted to allow targeted feeding of shrimp in ponds, thus maximizing food consumption and minimizing food wastage.
CHARACTERZATION OF ENDOGENOUS BACTERIA AS POTENTIAL PROBIOTICS IN LARVAL REARING OF YELLOWFIN TUNA (Thunnus albacares) Astuti, Ni Wayan Widya; Setiadi, Ananto; Gunawan, Gunawan; Hutapea, Jhon Harianto; Muzaki, Ahmad; Haryanti, Haryanti
Indonesian Aquaculture Journal Vol 20, No 2 (2025): (December, 2025)
Publisher : Agency for Marine and Fisheries Extension and Human Resources

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/iaj.20.2.2025.209-220

Abstract

The main objective of this study was to determine the profile of endogenous intestinal bacteria of yellowfin tuna, Thunnus albacares that can function as potential probiotics in the digestive system and used for the maintenance of yellowfin tuna larvae. Wild yellowfin tuna, T. albacares was collected from the waters of Gerokgak, Buleleng, North Bali, Indonesia. Intestinal bacteria were isolated, identified, characterized, and followed by enzymatic hydrolysis activity tests, antagonistic tests and pathogenicity tests to select candidate bacteria as probiotics. The results of the enzymatic hydrolysis activity test showed that there were 4 isolates of candidate probiotic bacteria that were active in enzymatic synthesis for amylase, lipase, casease, lecithinase, gelatinase. Identification through Sanger sequencing resulted in 4 potential bacterial isolates as probiotics, namely Bacillus subtillis strain T-A1, Bacillus amyloliquefaciens strain T-N2, Bacillus subtillis strain T-O4, and Paraclostridium bifermentans strain T-O6. These four bacteria were not antagonistic between varieties and were not pathogenic in Tuna fish. Yellowfin tuna fed probiotic supplements grew faster (5.5002 ± 0.2 mm) than the control (4.9002 ± 0.4 mm). The success of yellowfin tuna seed production is expected to be sustainable and its implementation in the private sector for aquaculture purposes. 

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