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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 471 Documents
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Early Detection of Heavy Metal Pollution with Biological Markers in Freshwater Clam (Corbicula javanica) in Maros River, Indonesia Erni Indrawati; Ratnawati Ratnawati; Hadijah Hadijah; Rizal Akbar Alydan; Jalil Jalil; Dahlifah Dahlifah
Jurnal Perikanan UGM (Journal of Fisheries Sciences) Vol 28, No 1 (2026)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jfs.110351

Abstract

This study aims to determine suitable biomarkers as monitoring tools for detecting heavy metal pollution in the Maros River. The analysis results showed that the livers of Corbicula javanica from the Maros River contained metallothionein Pb and metallothionein Cd. The average accumulation values of Pb and Cd that induced the appearance of metallothionein Pb were 0.001628 ppm and 0.004929 ppm, respectively. This study demonstrates that Corbicula javanica clams exhibit a significant biological response to exposure to heavy metals Pb and Cd in the Maros River, as evidenced by high bioaccumulation levels, the presence of the molecular biomarker metallothionein, and disturbances in physiological parameters such as the Gonad Somatic Index (GSI). Cd exhibited higher and faster accumulation patterns and Bioaccumulation Factor (BCF) values compared to Pb, indicating stronger toxicity potential and biological retention. The expression of Cd and Pb metallothionein in liver tissue, which appeared in the first and fifth weeks of exposure, demonstrated the high sensitivity of these biomarkers as early detection tools for heavy metal contamination. Conversely, although the GSI values of river freshwater clam were significantly lower than those of the control group, this parameter proved less sensitive to specific metal types, making it unsuitable as a sole indicator for early detection of contamination. The positive correlation between metal concentrations in tissues and shifts in physiological distribution, as determined by Principal Component Analysis (PCA), further supports the finding that freshwater clams experience stress accumulation over time. Based on the results obtained, Pb metallothionein and Cd metallothionein are biological markers (biomarkers) that can be used as tools for early detection of water pollution.
Field Testing of Multispecies Probiotics on Health Status, Water Quality, and Productivity of Pacific White Shrimp (Litopenaeus vannamei) Lindah Erlia Safira Siregar; Sinung Rahardjo; Tb. Haeru Rahayu; Putu Angga Wiradana
Jurnal Perikanan UGM (Journal of Fisheries Sciences) Vol 28, No 1 (2026)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jfs.111975

Abstract

Shrimp farming has rapidly grown into a significant sector worldwide, providing economic benefits and high-quality food. Probiotics are widely used in shrimp farming to enhance growth and prevent diseases. However, reports on the field-scale application of multispecies probiotics in shrimp farming are minimal. This study aims to evaluate the effectiveness of multispecies probiotics on the health status, production performance, and water quality of L. vannamei shrimp farming at a field scale. L. vannamei post-larvae were reared in maintenance ponds. The shrimp seeds were stocked in 10 plots (50×50×2 m²) and acclimated for 7 days. Multispecies probiotics were administered after acclimatization, and health status parameters, production performance, and water quality were subsequently measured. The results indicated that multispecies probiotics combined with molasses and fermented bran were ineffective at preventing V. parahaemolyticus growth, as evidenced by the health status of L. vannamei. However, multispecies probiotics improved production performance and water quality through the end of the maintenance period. This study highlights the effectiveness of multispecies probiotics in enhancing production performance and water quality. Further research is needed to understand the mechanism of action of these probiotics in vannamei shrimp at a field scale.
Evaluation of Mangrove Area Changes and Fisheries Production in South Lampung Coastal: Spatio-Temporal Analysis Lalik Salistia Citra; Muliawati Handayani; Mulkan Nuzapril
Jurnal Perikanan UGM (Journal of Fisheries Sciences) Vol 28, No 1 (2026)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jfs.112551

Abstract

Mangrove ecosystems play an important role in supporting the productivity of coastal capture fisheries by providing habitats, spawning grounds, and nursery areas for various fish species, as well as by facilitating ecological connectivity with adjacent coastal waters. This study aims to evaluate changes in mangrove cover in South Lampung Regency during 2020-2023, examine the variability of capture-fisheries production, and analyze the statistical relationships among these variables. The methods employed include multitemporal spatial analysis of Landsat 8 imagery using supervised classification and NDVI calculations, combined with statistical analyses based on Pearson correlation and simple linear regression, using fisheries production data obtained from the Department of Marine and Fisheries. The results indicate that mangrove cover increased from 475.5 ha in 2020 to 551.9 ha in 2023, in line with rehabilitation programs implemented in several coastal districts. During the same period, capture fisheries production reached 125,168 tons, dominated by squid, scads, yellowtail scads, anchovies, groupers, swimming crabs, and white shrimp. Statistical analysis revealed a powerful relationship between mangrove expansion and the catches of several key fisheries commodities. These findings are consistent with previous studies highlighting the importance of mangrove ecosystems for fisheries productivity and emphasize the role of mangrove conservation in supporting sustainable capture fisheries and coastal management in South Lampung Regency.
Effect of Adding Minced Mackerel Fish (Scomberomorus commerson) Meat as A Protein Source in the Production of Cassava Crackers Rifky Ardytiandi; Junianto Junianto; Kiki Haetami; Iis Rostini
Jurnal Perikanan UGM (Journal of Fisheries Sciences) Vol 28, No 1 (2026)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jfs.112618

Abstract

The protein content of cassava crackers can be increased by adding minced mackerel. This research aims to determine the optimal percentage of mackerel fish mince to be added to the production of cassava crackers that yields the most preferred product, and to determine the proximate composition of the most preferred product. The method used was experimental: the production of cassava crackers with different levels of mackerel mince addition, comprising four treatments (0%; 7.5%; 10%; and 12.5%), with 20 semi-trained panellists as replicates, to determine the panellists’ preference for cassava crackers. The parameters observed in this study were the level of preference (hedonic) test, which was analysed using non-parametric statistics with the Friedman test, followed by multiple comparison tests and Bayes tests for decision making, as well as proximate tests to determine the moisture content, ash content, fat content, protein content, carbohydrate content, and calcium content. The results showed that cassava crackers with 10% mackerel meat added were the most preferred based on the Bayes method analysis and preference levels with average scores of 8.3 for appearance, 8.3 for aroma, 8.6 for taste, and 8 for texture. The proximate test results were moisture content 4.12%, ash content 3.41%, fat content 25.53%, protein content 4.51%, and carbohydrate content 72.26%, with an expandability of 59.22%.
Evaluation of Genetic Variation in Hybrid Catfish (Sangkuriang × Thai) Employing PCR-RAPD Markers Kurnia Anggraini Rahmi; Putriku Nadzira Sativa; Alimuddin Alimuddin; Dinar Tri Soelistyowati
Jurnal Perikanan UGM (Journal of Fisheries Sciences) Vol 28, No 1 (2026)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jfs.113208

Abstract

Hybridization is the process of crossing individuals with different genotypes to produce offspring with superior traits. In this study, Sangkuriang catfish were crossed with introduced Thai catfish to obtain heterosis in hybrid seeds. The objective was to analyze the genetic diversity of these hybrid seeds using the PCR-RAPD method. Specifically, the primers OPA-13, OPB-08, OPC-19, and OPD-02 were used. Crossbreeding involved Sangkuriang female and Thai male broodstock, with four pairs of broodfish used via a semi-natural spawning method. After spawning, hybrid seeds from each pair were reared separately in containers under uniform conditions for 1.5 months. DNA samples were then collected from the fin tissue of each replicate of the crosses, and were grouped according to size categories: large (7-8 cm), medium (5-6 cm), small (3-4 cm), and broodstock, with 30 samples per size category for each replicate. The results revealed a polymorphism percentage of 72.95-93.88%, heterozygosity values of 0.167-0.232, and an average genetic distance among hybrid seeds from the three size categories and broodstock ranging from 0.001-0.018.
Factors Influencing Fishermen to Process Their Catches Into Value-Added Products - A Case Study of Banyuwangi Regency Khoirina Fajriani; Khairani Mardhiah
Jurnal Perikanan UGM (Journal of Fisheries Sciences) Vol 28, No 1 (2026)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jfs.110894

Abstract

The fisheries sector plays a crucial role in supporting global food security and national economic growth, including in Indonesia. However, despite increased production and exports, the welfare of traditional fishermen remains lagging due to the suboptimal downstream processing and the unequal distribution of value within the fisheries supply chain. Fishermen often receive the smallest share of the economic value from their catch. This study aims to identify the factors influencing fishermen’s decisions to process their catch into value-added products to increase their income in Banyuwangi Regency. Banyuwangi Regency was selected because it has the third-highest fishery production in East Java Province, possesses several other prominent sectors-particularly tourism-and is located near the ferry port connecting Java to Bali. This research employs a quantitative approach using logistic regression analysis. Data were collected through questionnaires distributed to 120 fishermen in Banyuwangi Regency. The analysis results show that, to some extent, product processing training has a significant and positive impact on encouraging fishermen to add value to their catch. The logistic regression results show that processing training has a significant positive effect on fishermen’s decision to process their catch (B = 5.709; p = 0.019; Exp(B) = 301.670). Other variables, including marketing training, gadget ownership, education level, fishermen’s income, and social media usage, were not statistically significant individually (p > 0.05), but simultaneously contributed to the model (χ² = 28.043; p < 0.001). The model explains 63.6% of the variation in fishermen’s processing decisions (Nagelkerke R² = 0.636).
Frozen Biofloc Biomass as A Functional Feed Supplement Enhances Production Performance of Mexican Dwarf Crayfish (Cambarellus patzcuarensis) Ujang Subhan; Silmi Aulia Kamilah; Lantun Paradhita Dewanti; Irfan Zidni
Jurnal Perikanan UGM (Journal of Fisheries Sciences) Vol 28, No 1 (2026)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jfs.115523

Abstract

Cambarellus patzcuarensis is a freshwater ornamental crayfish with stable export demand, yet its culture performance is frequently constrained by the limited availability of feeds that resemble its natural trophic niche. This study investigated the potential of biofloc derived from red Nile tilapia (Oreochromis niloticus) culture as a functional natural feed supplement for C. patzcuarensis. A completely randomized design was employed with four treatments: Frozen biofloc biomass (FBB) supplementation at 10%, 15%, and 20% of biomass larva day⁻¹, and a control without FBB, each with three replicates. The plankton abundance in the biofloc suspension in this study was 418,000 ind/mL, which was dominated by the classes Chlorophyceae and Bacillariophyceae, with rotifers as the main zooplankton component. Proximate analysis showed that FBB had high nutritional potential, characterized by high moisture content (91.20%), crude protein (29.10% dw), crude lipid (3.04% dw), crude fiber (0.81% dw), ash (3.65% dw), and carbohydrates (63.40% dw). Water quality throughout the experimental period remained within optimal ranges for C. patzcuarensis rearing. Furthermore, the combined application of commercial feed at a 4% feeding rate with 15% FBB supplementation resulted in relatively improved culture performance, as reflected by a survival rate of 65.0 ± 7.51%, a specific growth rate of 3.59 ± 0.16% g day⁻¹, and a coefficient of variation of 13.31 ± 2.96%. These findings demonstrate that FBB can function as an effective feed supplement from the utilization of aquaculture effluent of the biofloc system, supporting growth performance and culture efficiency of C. patzcuarensis when applied at moderate supplementation levels.
Phylogenetic and Morphological Analysis of Bostrychus sinensis (Gobiiformes: Eleotridae) from Musi River, South Sumatra Sofian Sofian; Selviani Selviani; Indah Anggraini Yusanti; Humairani Humairani; Sujaka Nugraha; Leni Maryani; Rahma Mulyani; Ahmad Sundoko; Nadia Jely Monica; Haspen Wijaya; Iwan Kuncoro; Fazril Saputra
Jurnal Perikanan UGM (Journal of Fisheries Sciences) Vol 28, No 1 (2026)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jfs.116397

Abstract

Bostrychus cf. sinensis, a member of the family Eleotridae, was first identified in the Muara Telang region, Banyuasin, South Sumatra. Specimens collected from tidal channels were subsequently analyzed genetically using DNA barcoding with the Cytochrome Oxidase Subunit 1 (COI) gene. The molecular analysis revealed that the Muara Telang specimens shared 98.55% genetic similarity with Bostrychus sinensis from the Seom River, South Korea. According to genetic guidelines, a divergence greater than 3% may indicate a distinct species. The genetic divergence observed was 0.243, equivalent to 243 nucleotide variations out of 1,000 bases analyzed. Phylogenetic analysis showed that Bostrychus cf. sinensis from Muara Telang clustered within the same clade as Bostrychus sinensis but still exhibited genetic polymorphism at 8 distinct sites. Therefore, this specimen was designated as Bostrychus cf. sinensis. The COI gene sequence data for Bostrychus cf. sinensis from Muara Telang have been deposited in GenBank under accession MK777294.1.
Determinants of the Productivity of Home-Based Blue Swimming Crab Pickers in Cirebon Regency Iskandar Kanna; Iwang Gumilar; Junianto Junianto
Jurnal Perikanan UGM (Journal of Fisheries Sciences) Vol 28, No 1 (2026)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jfs.116423

Abstract

The productivity of home-based blue swimming crab pickers is an important factor in the sustainability of the export-oriented home-based crab industry.  This research aims to analyse the factors that influence the productivity of home-based crab pickers in Cirebon Regency.  Specifically, this research aims to analyze: (1) the influence of individual characteristics on work motivation; (2) the influence of the work environment on work motivation; (3) the influence of work motivation on sanitation-hygiene practices; (4) the influence of work motivation on productivity; and (5) the influence of sanitation-hygiene practices on the productivity of home-based crab pickers.  The research was conducted with 40 home-based crab pickers in Cirebon Regency, using a quantitative approach and the partial least squares structural equation modelling (PLS-SEM) method.  The results showed that individual characteristics had a positive and significant effect on work motivation (β = 0.508; p < 0.05), whereas the work environment had a weaker but significant effect (β = 0.368; p < 0.05). Work motivation has a positive and significant effect on sanitation-hygiene practices (β = 0.621; p < 0.05) and a direct and significant effect on productivity (β = 0.416; p < 0.05). In addition, sanitation and hygiene practices are proven to have a positive and significant effect on productivity (β = 0.491; p < 0.05). The high coefficient of determination (R²) indicates that the model has strong predictive ability for explaining home-based crab pickers' productivity. This finding emphasises the importance of strengthening individual aspects and implementing sanitation and hygiene as strategies to increase productivity in household-scale crab processing units.
Ichthyodiversity in Ngurah Rai Magrove Forest Park, Bali I Nyoman Yoga Parawangsa; Sang Ayu Made Putri Suryani; Prawira Atmaja Tampubolon
Jurnal Perikanan UGM (Journal of Fisheries Sciences) Vol 28, No 1 (2026)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jfs.117520

Abstract

Ngurah Rai Mangrove Forest Park, located on Bali Island, is a mangrove ecosystem supporting numerous species. However, information on the park’s fish diversity remains limited, resulting in an incomplete inventory of its fish biodiversity. To address this, the present study examines the diversity and conservation status of fish species in the park. Specifically, sampling occurred from August to November 2022 using spears, fishing rods, bubu traps, and experimental gill nets. Data analysis included relative abundance, diversity index, evenness, dominance, and species richness. As a result, a total of 178 individuals from 28 families and 39 species were recorded, with Plotosus lineatus exhibiting the highest relative abundance (12.36). The respective index values for diversity, evenness, dominance, and species richness were 3.29, 0.90, 0.05, and 7.33. Regarding conservation status, most recorded fish species were classified as Least Concern according to the IUCN, while one Vulnerable species (Oreohormis mossambicus) and one Near Threatened species (Scomberomorus commerson) were also found. Taken together, these ecological indices indicate that the park supports diverse fish species.

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