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INDONESIA
Jurnal Perikanan Universitas Gadjah Mada
Published by Universitas Gadjah Mada
ISSN : 08536384     EISSN : 25025066     DOI : -
Core Subject : Science, Agriculture,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Immunology & microbiology
Jurnal Perikanan Universitas Gadjah Mada are published to promote a critical review of the various investigative issues of interest in the field of fisheries between the researchers, academics, students and the general public, as a medium for communication, dissemination, and utilization of wider scientific activities.
Arjuna Subject : -
Articles 460 Documents
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Molecular, Morphological and Production Performance Analysis of Introduced Black Tilapia Strains Oreochromis sp. Yanti, Dwi Hany; Soelistyowati, Dinar Tri; Carman, Odang; Hardiantho, Dian; Nasrullah, Hasan; Alimuddin, Alimuddin
Jurnal Perikanan Universitas Gadjah Mada Vol 27, No 2 (2025)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jfs.103567

Abstract

Evaluating the introduced black tilapia strains from molecular to production performance is essential in aquaculture to ensure genetic purity, reproductive efficiency and sustainable production improvement. However, uncontrolled hybridization and limited molecular evaluation of introduced strains have often led to inconsistent performance in hatcheries and grow-out systems. This study aimed to identify and characterize introduced black tilapia strains from Thailand (MAG NIN, BIG NIN and GIFT) compared to locally developed SAKTI strain from Indonesia based on molecular, morphological and production performance aspects. Molecular characterization was performed using cytochrome oxidase subunit I (COI) gene sequences from three fish per strain. Morphological aspects were assessed based on body dimensions and proportions from ten fish per strain. Production performance focused on reproductive and growth parameters. Reproductive parameters  including fecundity, egg size, hatching rate and larval survival rate, while growth performance parameters comprised specific growth rate, aquaculture productivity, feed conversion ratio, sex ratio and survival rate. Results revealed that all introduced strains shared the same species as the SAKTI strain, identified as Oreochromis niloticus. Morphologically, BIG NIN exhibited a significantly longer body shape compared to other strains (p < 0.05). BIG NIN also demonstrated superior production performance (p < 0.05). These findings highlight the importance of integrating molecular and performance-based evaluations to support selective breeding and strain improvement  programs for enhancing tilapia productivity.
Physical Characteristics of Water to Indicate and Improve Gonad Development of Climbing Perch (Anabas testudineus) in Peat Swamp Habitats Bungas, Kartika; Elvience, Rosana; Rosita, Rosita; Ashari, Fadhil Muhamad
Jurnal Perikanan Universitas Gadjah Mada Vol 27, No 2 (2025)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jfs.104935

Abstract

Peat swamps are aquatic ecosystems that have distinctive physicochemical characteristics that can affect fish life, including the Climbing perch (Anabas testudineus). This study aims to analyse the physics of water and gonad maturity of Climbing Perch in peat swamps, to understand the relationship between environmental conditions and the reproductive cycle of Climbing Perch species (Anabas testudineus). The water physics parameters measured included temperature, brightness, depth, and Total Dissolved Solid (TDS), which were compared with the Gonad Maturity Level of Climbing perch caught from the research stations (Station-1, Station-2, and Station-3) in Tanjung Taruna peat swamps. The results showed that the physical parameters of the waters play an important role in the reproduction of the Climbing Perch (Anabas testudineus). Variations in temperature, brightness, depth, and TDS affect metabolism and the hormonal system that regulates gonadal development. Optimal temperature promotes the secretion of reproductive hormones, while extreme temperatures inhibit gonad maturation. Brightness and depth affect eating activities, physiological comfort, and stress levels that impact energy allocation for reproduction. TDS ideally maintains osmotic balance, while high TDS reduces energy for gonadal development and spawning success.
Curative Efficacy of Yellow Root (Arcangelisia flava) Extract Against Aeromonas hydrophila Bacterial Infection in Climbing Perch (Anabas testudineus) Maryani, Maryani; Monalisa, Shinta Sylvia; Rozik, Mohamad; Elvince, Rosana
Jurnal Perikanan Universitas Gadjah Mada Vol 27, No 2 (2025)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jfs.104970

Abstract

Yellow root (Arcangelisia flava) demonstrates potential for combating bacterial infections in aquaculture due to its secondary metabolite content, which includes flavonoids, terpenoids, and protoberberine alkaloids. This study aimed to evaluate the efficacy of yellow root extract as a curative agent against Aeromonas hydrophila infection in Climbing Perch (Anabas testudineus). The method employed was an in vivo study using immersion treatments of yellow root extract at concentrations of 200, 400, and 600 mg/L, alongside a control (0 mg/L). Observations were conducted for 10 days post-infection and treatment, covering clinical symptoms and Survival Rate (SR). Prior to treatment, the fish exhibited clinical symptoms characteristic of A. hydrophila, such as red spots and exophthalmia. The results indicated that water quality parameters (temperature 26.4–27.1°C, pH 6.8–7.1, DO 3.28–3.47 mg/L) remained within optimal and stable ranges. In the extract treatment groups (B, C, and D), significant recovery was observed starting from day 3, achieving a 100% SR by day 10. In contrast, the control group (A) only attained an SR of 26.6%. This curative success is attributed to the mechanism of action of active compounds, which disrupt bacterial membranes and inhibit metabolism. It is concluded that A. flava extract is effective as a natural alternative treatment for bacterial infections in Climbing Perch.
Revisiting Gunung Anyar Mangrove Ecotourism: How Satisfaction Mediates Accessibility, Facilities, and Destination Image Heryono, Didik; Abidin, Zainal
Jurnal Perikanan Universitas Gadjah Mada Vol 27, No 2 (2025)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jfs.106012

Abstract

Indonesia holds substantial potential in sustainable coastal ecotourism development, including urban mangrove tourism such as Gunung Anyar Mangrove Ecotourism in Surabaya. Despite increasing visitor numbers, the destination still faces challenges in facilities and destination image. This study aims to examine the effect of accessibility, facilities, and destination image on revisit intention, with visitor satisfaction as a mediating variable. A quantitative approach was applied using Partial Least Squares Structural Equation Modeling (PLS-SEM) via WarpPLS 8.0. The results reveal that facilities and destination image significantly influence revisit intention both directly and indirectly through satisfaction. In contrast, accessibility shows a positive but statistically insignificant effect. These findings highlight the importance of enhancing facilities and destination image to improve satisfaction and visitor loyalty. This study contributes to the body of knowledge on tourist behavior in the context of sustainable urban mangrove ecotourism.
The Influence of Pb Levels in Water on Histopathology of Gills and Kidneys of Hemibagrus nemurus (Valenciennes, 1840) in Siak River, Pekanbaru, Riau Yusfiati, Yusfiati; Putri, Sri Handayani; Prameswari, Ulan
Jurnal Perikanan Universitas Gadjah Mada Vol 27, No 2 (2025)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jfs.106986

Abstract

Waste metals from the Siak River in Indonesia's Riau Province can enter fish organs and change their structure and metabolic functions. This study looks for heavy metal concentrations in the water and structural organ alterations of Hemibagrus nemurus (Valenciennes, 1840). Fish and river water samples were collected at sites 1 (Limah Puluh district) and 2 (Rumbai Pesisir district). The Atomic Absorption Spectrophotometry (AAS) method tests kidney and gill Pb samples. Siak River Pb readings in locations 1 and 2 were 0.113 mg/L and 0.072 mg/L in January 2024 and 0.105 and 0.128 mg/L in October. Gill and kidney Pb were 0.0132 and 0.2726 mg/kg. Fish kidneys were reddish-black at two sites, while gills were bright red at site one and dark red at site two. In all samples, edema, fusion, hyperplasia, telangiectasis, and epithelial lifting indicate fish gill tissue injury. Kidney tissue abnormalities also indicate injury. It is concluded that Pb levels in the Siak River exceeded the permissible limit in 2024, resulting in edema, necrosis, degeneration, and damage to the kidneys and gills of fish. The ecosystem of the river may be harmed by elevated Pb levels in the water, which have also injured fish organs.
Optimizing Red Tilapia Juvenile (Oreochromis niloticus) Nursery in Recirculating Aquaculture with Ultrafine Bubbles System at Variable Stocking Densities Subhan, Ujang; Meisani, Isni; Afriza, Azka Reyza; Nuruhwati, Isni; Grandiosa, Roffi; Al Mujahid, Muhammad Abdul Aziz
Jurnal Perikanan Universitas Gadjah Mada Vol 27, No 2 (2025)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jfs.107148

Abstract

The increased demand for red tilapia (Oreochromis niloticus) production requires a sufficient supply of high-quality juveniles. Technological innovation is crucial for developing quantifiable, highly productive, efficient, environmentally sustainable, and ecologically sound juvenile production systems. This study aimed to analyse the effect of high stocking density on the growth performance of red tilapia juveniles cultured using ultrafine bubble technology in a recirculating aquaculture system (UFBs-RAS). A completely randomised experimental design was used with four stocking density treatments: one control treatment (4 fish/L with aeration) and three treatments under the UFBs-RAS system at 4, 6, and 8 fish/L densities. Each treatment was replicated four times. The juvenile red tilapia used in this study had an average initial total length of 4.34 ± 0.23 cm and a weight of 1.47 ± 0.31 g. They were obtained from fishpond research at the FINDER UCoE Experimental Station, Universitas Padjadjaran. The findings indicated that UFBs-RAS facilitated optimal production performance, even at the maximum stocking density of 8 fish per liter. The performance metrics comprised a survival rate of 98.75%, a specific growth rate in weight of 4.93 ± 0.062%/d, a specific growth rate in length of 3.88 ± 0.05%/d, a protein efficiency ratio of 2.48 ± 0.02, a feed conversion efficiency of 96.5 ± 0.58%, and a coefficient of variation of 33.7 ± 1.2%. These data validate that incorporating UFBs-RAS is a viable and efficient method to improve the quality and productivity of red tilapia juveniles.
Comparing Vessel Monitoring System and Logbook Data for Skipjack Tuna Habitat Modeling in Eastern Indian Ocean Nurzeha, Ridwan; Gaol, Jonson Lumban; Agus, Syamsul Bahri; Alam, Al Fajar
Jurnal Perikanan Universitas Gadjah Mada Vol 27, No 2 (2025)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jfs.107568

Abstract

Skipjack tuna (Katsuwonus pelamis) is important to Indonesian fisheries, which lead to the need of accurate habitat prediction for sustainable management. This study assesses the spatiotemporal coverage and predictive utility of logbook and Vessel Monitoring System (VMS) data for skipjack habitat modeling using MaxEnt, with sea surface temperature (SST), chlorophyll-a, sea surface height (SSH), and salinity as predictors. Findings indicate VMS offers broader positional coverage but suffers from behavioral ambiguity, whereas logbook data, though spatially limited, provides higher accuracy due to direct catch reporting. Model evaluations showed comparable performance: the VMS-derived model achieved an AUC of 0.760 and an F1-score of 0.658, while the logbook-derived model yielded an AUC of 0.742 and an F1-score of 0.624. However, distribution analysis revealed the logbook-derived model performed better, with 87.5% of fishing events occurring in higher Habitat Suitability Index (HSI) areas compared to 73.1% for the VMS-derived model. These results suggest VMS data presents a viable alternative and comparative data source to logbook records for habitat modeling, offering opportunities to enhance fisheries management.
Induction of Allotriploidy in Pangasius and Its Effects on Growth Performance Through Tetraploid × Diploid Hybridization Urabi, Debby; Rahmi, Kurnia Anggraini; Carman, Odang; Sudrajat, Agus Oman; Arfah, Harton
Jurnal Perikanan Universitas Gadjah Mada Vol 27, No 2 (2025)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jfs.107986

Abstract

Triploidization is a polyploidization technique used to produce fish with improved growth, while hybridization is another method to enhance genetic quality through crosses within or between species. This study evaluated the growth performance of allotriploid catfish at the seed stage. The experiment was conducted for 45 days at the Laboratory of Reproduction and Genetics of Aquatic Organisms, Bogor Agricultural University, using a completely randomized design with four treatments and three replications. The treatments consisted of allotriploid, autotriploid, hybrid diploid, and diploid fish. Ploidy analysis showed that allotriploid and autotriploid fish had up to three nucleoli per cell, while hybrid diploid and diploid fish had a maximum of two. Growth results indicated that allotriploid fish achieved the highest final weight (4.68±0.12 g) and length (2.79 ± 0.16 inches), followed by hybrid diploid, autotriploid, and diploid fish. ANOVA results confirmed significant differences in final weight and length among treatments, indicating that ploidy manipulation and hybridization had a substantial impact on growth. However, feed conversion ratio and survival rate did not differ significantly (P > 0.05). Overall, the findings indicate that allotriploid catfish seeds showed superior growth performance compared to autotriploid, hybrid diploid, and diploid fish.
The Molecular Study on the Identity, Genetic Composition, and Phylogenetic Relationships of Carcharhinus (Blainville, 1816) Sharks in the Western Waters of Aceh Bahri, Samsul; Ruzanna, Arina; Burhanis, Burhanis
Jurnal Perikanan Universitas Gadjah Mada Vol 27, No 2 (2025)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jfs.111404

Abstract

The shark genus Carcharhinus faces high exploitation pressure in the Western Waters of Aceh, while comprehensive genetic data to support conservation remains limited. This study aimed to identify species, analyze nucleotide composition, and reconstruct the phylogenetic relationships of Carcharhinus sharks using the Cytochrome c oxidase subunit I (COI) gene as a molecular marker. A total of 14 tissue samples were collected from three fish landing sites: Aceh Jaya, West Aceh, and Southwest Aceh. Standard procedures included DNA extraction, PCR amplification, sequencing, and bioinformatic analysis using BLAST for identification and MEGA for phylogenetic analysis via the Neighbor-Joining method. Molecular identification successfully confirmed the presence of six species: Carcharhinus falciformis (n=7), C. sorrah (n=3), C. brevipinna (n=1), C. amboinensis (n=1), C. amblyrhynchos (n=1), and C. limbatus (n=1), with identity matches ranging from 99.23-100%. Nucleotide composition analysis revealed a consistent bias towards Adenine and Thymine bases (AT-rich), a common characteristic of the elasmobranch mitochondrial genome. The reconstructed phylogenetic tree demonstrated that each species formed a solid monophyletic group with high bootstrap support. The analysis also confirmed C. brevipinna and C. amboinensis as sister taxa. No clear geographic population structure was found for widespread species, indicating high population connectivity within these waters. This molecular baseline data is crucial for supporting evidence-based fisheries management and conservation strategies for threatened shark species in Indonesia.
Analysis of Rusip Product Development: Product Profile, Raw Materials, Product Form, Packaging, and Marketing Techniques in Indonesia Junianto, Junianto; Hidayat, Syamsuddin; Putri, Ismi Nabila; Rizki, Muhammad Novandisya; Diana, Ratna Nurcahaya; Pamuji, Ginanjar; Firdaus, Nasywa Tsabita
Jurnal Perikanan Universitas Gadjah Mada Vol 27, No 2 (2025)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jfs.112874

Abstract

Rusip is a traditional fish fermentation product typical of coastal communities in Sumatra, particularly Bangka Belitung. Rusip is made from small fish such as anchovies or bilis that are fermented using salt and palm sugar. This product has the potential to be developed to increase production and competitiveness. This study aims to analyze the development of rusip based on product profile, raw materials, product form, packaging, and marketing techniques. The study was conducted qualitatively using a comparative descriptive analysis method. Data collection was carried out through secondary data observation by reviewing various literature sources related to rusip product development published between 2010 and 2025. The results show that rusip products have undergone developments in raw materials, product form, packaging, and marketing techniques. The raw material, which initially used anchovies, has now been replaced with rucah fish, while fermentation, which previously used spontaneous fermentation bacteria, now uses Lactic Acid Bacteria (LAB). In addition, the paste product form has been developed into a powdered seasoning form, non-vacuum packaging has been developed into vacuum packaging, and marketing techniques, which were initially carried out directly and gradually using WhatsApp and Facebook, have now shifted to e-commerce-based marketing such as Shopee and Instagram. 

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