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Journal of Fisheries & Marine
Published by Universitas Airlangga
ISSN : 20855842     EISSN : 25280759     DOI : https://doi.org/10.20473/jipk.v16i1.44436
Core Subject : Science,
Biochemistry, Genetics & Molecular Biology
Jurnal Ilmiah Perikanan dan Kelautan (JIPK; English: Scientific Journal of Fisheries and Marine) ISSN International Centre | ISSN:2528-0759 (Online) | ISSN: 2085-5842 (Print) JIPK is a peer-reviewed and open access biannually (April and November) that published by the Faculty of Fisheries and Marine, Universitas Airlangga. The aim of JIPK is to publish exciting, empirical research, recent science development, and high-quality science that addresses fundamental questions in fisheries and marine. JIPK only accepts manuscripts written in full English and processes submitted original script related of scope to fisheries and marine science and not being published by other publishers. We publish four categories of papers; 1) Original research papers, 2) Critical review articles, 3) Short communications, and, 4) Special Issue on applied or scientific research relevant to freshwater, brackish and marine environments. This journal gives readers the state of art of the theory and its applications of all aspects of fisheries and marine science. The scope of this journal includes, but is not limited to the research results of: Aquaculture, Fish Diseases, Marine science, Oceanography, Aquatic resources management, Fisheries product technology, Fish capture, technology, Fishery agribusiness, Fishery biotechnology/molecular genetics, Fish health management. JIPK has been indexed in Scopus, DOAJ, Sinta 1, Dimensions, Crossref, and others indexing. This journal has been accredited as a 1st Grade Scientific Journal (Sinta 1) by the Ministry of Research, Technology, and Higher Education of Indonesia since 8 December 2020.
Arjuna Subject : Biokimia, Genetika dan Biologi Molekuler - Biokimia
Articles 560 Documents
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Scaling Digital Fisheries Management: The Role of e-PIT in Enhancing Data Accuracy and Operational Efficiency Suherman, Agus; Nurul Huda, Hamdan; Timilsina, Raja Rajendra; Hernuryadin, Yayan; Untoro, Firli; Amboro, R. Tono; Sock, Fatou; Koirala, Pankaj
Jurnal Ilmiah Perikanan dan Kelautan Vol. 17 No. 2 (2025): JURNAL ILMIAH PERIKANAN DAN KELAUTAN
Publisher : Faculty of Fisheries and Marine Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jipk.v17i2.69393

Abstract

Graphical Abstract   Highlight Research The implementation of e-PIT in Indonesia's fisheries governance led to a 475% increase in vessel arrivals from 2022 to 2024. Catch showed a 210% increase in 2024, reaching 1.167 billion kilograms, compared to 2023. The system enabled 161% growth in PHP revenue collection, from Rp 590.85 billion in 2023 to Rp 951.64 billion in 2024. A security evaluation (Pentest) of e-PIT revealed vulnerabilities, and effective security enhancements were made to ensure system reliability and scalability.     Abstract The e-PIT system has transformed fisheries management in Indonesia by improving data accuracy, efficiency, and transparency. This study examines the effects of e-PIT from 2022 to 2024, focusing on metrics such as vessel arrivals, catch data, and PHP revenue. A descriptive-exploratory approach was used to compare data before and after e-PIT's implementation. Findings show significant progress: vessel arrivals rose by 475%, catch amounts doubled to 1.167 billion kilograms, and PHP revenue increased by 161% to Rp 951.64 billion in 2024. Daily operations stabilized, with 257 transactions worth IDR 2.6 billion. While a security test found some vulnerabilities like unsecured cookies and outdated server settings, improvements have been made to enhance security, aligning with standards like ISO/IEC 27001. These measures ensure e-PIT's security, scalability, and reliability as a model for digital fisheries governance. The study concludes that e-PIT boosts efficiency, accuracy, and transparency. Recommendations include improving digital infrastructure, cybersecurity, and stakeholder engagement. Despite its focus on specific data and regions, the study offers insights for applying e-PIT in other developing countries, supporting global goals like SDG 14 and the FAO Fisheries Governance Framework.
The Suitability of Tomini Bay Gorontalo for Marine Tourism: Opportunities and Challenges Hamzah, Sri Nuryatin; Sahami, Femy M; Habibie, Sitty Ainsyah; Djunaidi, Sandrianto
Jurnal Ilmiah Perikanan dan Kelautan Vol. 17 No. 2 (2025): JURNAL ILMIAH PERIKANAN DAN KELAUTAN
Publisher : Faculty of Fisheries and Marine Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jipk.v17i2.69451

Abstract

Graphical Abstract    Highlight Research 1. The potential of coral reefs for marine tourism has been calculated. 2. The potential of coralfish for marine tourism has been identified. 3. Water quality parameters are supporting factors for the sustainability of marine tourism. 4. The suitability of snorkeling and diving tourism has been mapped.     Abstract The waters of Tomini Bay, which boast the longest coastline in Gorontalo Province at 572.5 km, hold significant marine tourism potential, warranting further study and development. This research evaluated the potential and suitability of marine tourism in the Tomini Bay Gorontalo area, specifically snorkeling and diving. Data were collected on coral reef conditions, reef fish communities, and water quality parameters from six locations, including Pinomontiga, Kurenai, and Kaisomaru Beach, as well as Dulanga, Bitila, and Lahe Islands. Coral reef conditions were assessed using the underwater photo transect method, while reef fish data were collected using the underwater visual census method. Physical water parameter data measured were temperature (°C), salinity (‰), pH, dissolved oxygen (mg/L), current speed (cm/s), and brightness (m). The analysis of coral cover was conducted using Coral Point Count with Excel extensions (CPCe), while the suitability for snorkeling and diving tourism was assessed using the Tourism Suitability Index. The results showed that most locations had moderate to excellent coral reef conditions, high coral and fish diversity, and water quality that supported marine tourism activities. Among the six locations studied, two, namely Pinomontiga Beach and Lahe Island, were rated highly suitable for snorkeling and diving, while Kaisomaru Beach was not suitable. Other places, including Kurenai Beach and Bitila Island, were rated as suitable. These results provide essential information for developing sustainable marine tourism in Tomini Bay Gorontalo and can serve as a reference for local government in planning environmentally friendly tourism activities.                
Water Mass and Indirect Estimation of Turbulent Mixing Based on Observational CTD Yoyo Data in Flores Sea Waters, Indonesia Harsono, Gentio; Yuliardi, Amir Yarkhasy; Wirasatriya , Anindya; Purwanto, Budi; Cabral, Mario
Jurnal Ilmiah Perikanan dan Kelautan Vol. 17 No. 2 (2025): JURNAL ILMIAH PERIKANAN DAN KELAUTAN
Publisher : Faculty of Fisheries and Marine Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jipk.v17i2.70809

Abstract

Graphical Abstract   Highlight Research Three distinct water layers were identified: surface (0-50 m), thermocline (50-180 m), and deep (>180 m). The thermocline layer is the most stable, with high Brunt-Väisälä frequency and low Thorpe displacement values. The highest energy dissipation rates were observed in the thermocline layer. Vertical diffusivity values were highest in the thermocline layer and decreased with depth.     Abstract The Flores Sea is on the western ITF trajectory connecting the Pacific and Indian oceans. Identification and quantification of turbulent mixing of water masses in the Flores Sea are essential for analyzing large-scale ocean circulation processes, including the circulation of the Indonesian ocean interior. However, direct estimations of turbulent mixing in the Flores Sea as a part of the ITF are underestimated. This research aims to determine water conditions, stratification, and water mass structures. This research used data obtained from the CTD instrument applying a Yoyo casting method deployed in March − April 2023. On the other hand, the Thorpe method was used to estimate turbulent vertical mixing based on the values ​​of energy dissipation and vertical diffusivity. The waters are stratified into three layers, mixed layer (1−50 m), thermocline layer (50−180 m), and deep layer (180−500 m). The CTD data showed the presence of a stable thermocline layer dominated by ITF water masses carrying water masses from the Pacific Ocean (North Pacific Intermediate Water (NPIW) and North Pacific Subtropical Water (NPSW)) from the western ITF path. The energy dissipation value obtained at the study site was about 3.36E-07 W Kg-1 and the vertical diffusivity value was approximately 5.25E-05 m2s-1. The thermocline layer showed a large energy dissipation value which was strongly associated with the friction of the ITF, suggesting that turbulent mixing in this region is primarily driven by the interaction of ITF water masses with the surrounding environment.
Front Meter Vol 17 No 2 Rozi
Jurnal Ilmiah Perikanan dan Kelautan Vol. 17 No. 2 (2025): JURNAL ILMIAH PERIKANAN DAN KELAUTAN
Publisher : Faculty of Fisheries and Marine Universitas Airlangga

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Abstract

Back Meter Vol 17 No 2 Rozi
Jurnal Ilmiah Perikanan dan Kelautan Vol. 17 No. 2 (2025): JURNAL ILMIAH PERIKANAN DAN KELAUTAN
Publisher : Faculty of Fisheries and Marine Universitas Airlangga

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Abstract

Deep Learning Models Performance on Marine Fish Species Classification Awalludin, Ezmahamrul Afreen; Anang, Nur Muhammad Afiq
Jurnal Ilmiah Perikanan dan Kelautan Vol. 17 No. 3 (2025): JURNAL ILMIAH PERIKANAN DAN KELAUTAN
Publisher : Faculty of Fisheries and Marine Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jipk.v17i3.71815

Abstract

Graphical Abstract   Highlight Research The ResNet50 presented the highest accuracy for classifying 20 marine fish species in the study. The performance comparison demonstrated that ResNet50 outperformed both AlexNet and GoogLeNet. Transfer learning enabled effective feature extraction from limited datasets. Deep learning models offer potential for automating the classification of marine fish     Abstract Identifying marine fish species accurately can be difficult due to their subtle anatomical and colour pattern similarities, which often result in misclassification during ecological assessments and fisheries operations. Manual identification methods are time-consuming and prone to errors especially in high throughput environments such as fish markets. In this study, transfer learning is used to evaluate three deep learning models ResNet-50, AlexNet and GoogLeNet on a total of 20,325 images from twenty marine fish species acquired from Kuantan (Pahang) and Mengabang Telipot (Kuala Nerus), Malaysia. All images were morphologically classified as complete fish, head, body and tail. The dataset was subjected to preprocessing procedures which encompassed image resizing, pixel normalization and data augmentation techniques that consists of random rotation (±15°), horizontal flipping, adjustments to brightness and contrast (±20%) and cropping. Subsequently, the dataset was partitioned into 80% training set (16,260 images), 10% validation set (2,032 images) and 10% testing set (2,033 images). The classification patterns were analysed using confusion matrices and standard metrics such as accuracy, precision and recall. ResNet-50 outperformed other models achieving ideal results with 100% accuracy, precision and recall in every category. With 99.5% and 99.4% accuracy, GoogleNet and AlexNet came in second and third, respectively. This study shows that deep learning models especially ResNet-50 achieved an accurate and efficient way to classify fish species automatically. With multi-view images, data augmentation and transfer learning, the model performs well even in difficult visual conditions. These results support its use in real-time fisheries monitoring, biodiversity studies, and environmental impact assessments
Seagrass Ecosystem Assesment for Dugong Conservation: Integrating Anthropogenic Activites and Oceanographic Parameters in East Java’s Coastal Waters Dewi, Citra Satrya Utama; Ciptadi, Gatot; Wahyudi, Slamet; Wiadnya , Dewa Gede Raka; Semedi, Bambang; Sukandar, Sukandar; Isdianto, Andik; Sunuddin, Adriani; Herandarudewi, Sekar Mira; Tarno, Hagus
Jurnal Ilmiah Perikanan dan Kelautan Vol. 17 No. 3 (2025): JURNAL ILMIAH PERIKANAN DAN KELAUTAN
Publisher : Faculty of Fisheries and Marine Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jipk.v17i3.71841

Abstract

Graphical Abstract   Highlight Research 1. The study successfully identified the utilization of coastal and marine areas within the research site. 2. Oceanographic parameters across the study area have been analyzed, providing insights into variations in environmental conditions favoring seagrass ecosystem resilience. 3. The structure of seagrass vegetation has been thoroughly observed, revealing differences in species composition, density, and coverage. 4. Furthermore, the study establishes the connectivity between coastal and marine spatial utilization, oceanographic factors, and seagrass ecosystem dynamics, highlighting their interdependent relationships.     Abstract This study aims to assess the ecological status of seagrass meadows and their relationship with dugong (Dugong dugon) habitats across four distinct ecological regions in East Java, Indonesia. Field assessments were conducted to evaluate seagrass community structure, oceanographic parameters, and the intensity of human activities. Seagrass distribution was mapped using Sentinel-2A satellite imagery, while seagrass health was evaluated through the Seagrass Ecological Quality Index (SEQI) and Importance Value Index (IVI). Statistical analyses, including Analysis of Variance (ANOVA) and Principal Component Analysis (PCA), were employed to identify significant differences and key environmental drivers. The results revealed marked spatial variation in oceanographic characteristics and seagrass coverage (p < 0.05). PCA showed that anthropogenic factors—particularly marine space utilization such as aquaculture and coastal development—were major contributors to seagrass degradation. Elevated nutrient concentrations were also associated with declining seagrass health, indicating land-based pollution as a dominant stressor. These findings underline the urgent need for integrated coastal zone management. Strengthening conservation policies, reducing terrestrial runoff, and implementing sustainable marine spatial planning are critical to safeguard seagrass ecosystems and ensure the long-term survival of dugong populations in Indonesian waters.
In silico and In vitro Antibacterial Activity of Centella asiatica Leaves Bioactive Compounds Against Aquaculture Pathogenic Bacteria Andriyanto, Septyan; Maftuch, Maftuch; Andayani, Sri; Nafiqoh, Nunak; Gardenia, Lila; Novita, Hessy; Nursid, Muhammad
Jurnal Ilmiah Perikanan dan Kelautan Vol. 17 No. 3 (2025): JURNAL ILMIAH PERIKANAN DAN KELAUTAN
Publisher : Faculty of Fisheries and Marine Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jipk.v17i3.72072

Abstract

Graphical Abstract     Highlight Research The GC-MS analysis of the asiatica leaves extracts identified 53 bioactive compounds. The crude extracts of asiatica showed antibacterial efficacy against fish pathogenic bacteria. 13-Hexyloxacyclotridec-10-en-2-one has the potential to be an inhibitor of DNA gyrase. Bioactive compounds derived from C. asiatica leaves extracts show potential as antibacterial agents.     Abstract Antimicrobial agents are crucial for managing bacterial infections in fish cultures. Centella asiatica is a medicinal plant recognised for its diverse bioactive compounds with important antibacterial properties. The present study aimed to investigate the antibacterial activity of C. asiatica leaves bioactive compounds on fish pathogenic bacteria using an in vitro and in silico approach. The maceration method was used to extract bioactive compounds from C. asiatica leaves and was identified using Gas Chromatography-Mass Spectrometry (GC-MS). In vitro analysis of antibacterial activity was evaluated using the minimum inhibitory concentration method. While in silico molecular docking is applied alongside assessing Lipinski's rules of five, as well as absorption, distribution, metabolism, excretion, and toxicity properties. The result of the GC-MS examination of the C. asiatica leaf extracts identified 53 bioactive compounds. In vitro studies showed antibacterial efficacy of leaf extracts against fish pathogenic bacteria (Streptococcus agalactiae, Bacillus subtilis, and Staphylococcus aureus) with minimum inhibitory concentration values of 12,5 mg/ml. In silico molecular docking analysis showed that several bioactive compounds have the potential to be DNA gyrase inhibitors. Compound 13-Hexyloxacyclotridec-10-en-2-one has the highest inhibition with binding energy of −7,4 Kcal/mol compared to ciprofloxacin as drug standard with a binding energy value −7,3 Kcal/mol. The following compound is gamma.-Muurolene (−6,7 Kcal/mol), Copaene (−6,6 Kcal/mol) and Humulene (−6,6 Kcal/mol). These results suggest that bioactive compounds of C. asiatica leaves extracts hold promise as potential antibacterial agents for treating fish pathogenic bacteria infections.
Characteristics of Water-Soluble Collagen Extracted from Catfish (Pangasius sp.) Skin Using Different Acetic Acid (CH3COOH) Concentrations S.Pi., M. Si, Patmawati; Nuzil Romadhoni, Puput; Puspitaningsih , Devi; Sulmartiwi, Laksmi; Nirmala, Dwitha; Endi Rahmantyo, Lastiko; Moechthar, Oemar; Raseetha, Siva; Akmal Alwi Husein, Mohamad; Khadijah Zai
Jurnal Ilmiah Perikanan dan Kelautan Vol. 17 No. 3 (2025): JURNAL ILMIAH PERIKANAN DAN KELAUTAN
Publisher : Faculty of Fisheries and Marine Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jipk.v17i3.72086

Abstract

Graphical Abstract Highlight Research Optimized extraction enhances fish skin-based collagen as an alternative to bovine and porcine sources. Hydro-Extraction Advantage offer a cost-effective approach for producing high-purity, water-soluble collagen. Varying CH₃COOH concentrations influence collagen yield and solubility, impacting its potential applications in food, pharmaceutical, and cosmetic industries. Hydro-extracted collagen is biodegradable and free of harmful residues.     Abstract Collagen extraction from fish skin offers a sustainable approach to valorize fish processing by-products, and fish skin catfish (Pangasius sp.) is recognized as a promising collagen source. However, previous studies reported that in low water solubility, limiting its functional application in food, pharmaceutical, and cosmetic industries. To address this challenge, this study investigates the use of varying acetic acid concentrations (0.4, 0.6, and 0.8 M) during the hydrolysis stage prior to hydro-extraction, aiming to enhance the solubility and quality of the extracted collagen. Parameters measured included yield, solubility, proximate composition (protein, fat, air content, ash), organoleptic quality, molecular weight, amino acid profile and functional groups analysis. The best results were achieved with 0.6 M acetic acid, resulting in type I collagen coupled by the amide groups A, B, I, II, III, and molecular weights (65, 95, 130 and 270 kDa). The dominant amino acids identified was glycine. This treatment yielded a collagen extraction rate of 9.04% and solubility of 79.71%. The proximate composition included 67.34% protein, 14.87% fat, 8.48% moisture, and 10.69% ash. Organoleptic scores for appearance, odour, and texture were 7.80, 7.93, and 6.80, respectively. The collagen met the SNI 8076:2020 standard for protein content, moisture, and organoleptic attributes; however, fat and ash contents exceeded the specified limits. In conclusion, the acetic acid concentration significantly affects the physicochemical and sensory properties of collagen. Catfish skin shows strong potential as a raw material for collagen production, which supports its use in the food, pharmaceutical, and cosmetic sectors.
DNA Barcoding and Morphological Characters of Juvenile Plectropomus (Perciformes: Epinephelidae) Caught in Makassar Strait Mainna, Muth; Kadir, Nadiarti Nurdin; Husain, Aidah Ambo Ala; Hidayani, Andi Aliah; Umar, Widyastuti; Moore, Abigail Mary
Jurnal Ilmiah Perikanan dan Kelautan Vol. 17 No. 3 (2025): JURNAL ILMIAH PERIKANAN DAN KELAUTAN
Publisher : Faculty of Fisheries and Marine Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jipk.v17i3.72091

Abstract

Graphical Abstract   Highlight Research  Integrated DNA barcoding and morphological variations can improve the identification of grouper species. DNA barcoding confirms the morphological identification of Plectropomus (98-100% similar). High intraspecies genetic diversity revealed within Plectropomus in Makassar Strait. Potential cryptic species identified within Plectropomus based on genetic analysis.     Abstract  The high economic value of groupers has made them a popular choice in both local and international markets. However, identifying grouper species is also challenging due to complex morphological variations especially in the juvenile phase. An integrative approach combining DNA barcoding and morphometric analysis was applied to improve species identification accuracy and provide additional information on grouper stocks. This research aims to gain a deeper understanding of the morphological and genetic diversity of groupers caught in the juvenile phase from the Makassar Strait. Samples of the genus Plectropomus (n=6) collected from a fish landing site in Pangkajene Kepulauan Regency were identified based on morphology and using molecular methods (DNA barcoding). Phylogenetic and haplotype network analyses were performed. For all specimens the morphometric-meristic and molecular analyses were consistent (98-100% similarity) to known P. leopardus and P. oligacanthus accessions from GenBank. However, phylogenetic analysis: P. leopardus clustered into two distinct lower-level clades, and notably, two P. areolatus (Taiwan) resolved within the P. leopardus clade, while two P. laevis (Philippines) the resolved within the P. oligacanthus clade. Haplotype network showed high intraspecific genetic diversity, with P. leopardus forming four distinct haplotype groups and P. oligacanthus forming two groups. These findings collectively indicate that misidentification may be common and highlight the urgent need for further investigation into geographic barriers to gene flow and the potential existence of cryptic species or subspecies within Plectropomus. This study is expected to provide critical support for sustainable fisheries management and the conservation of marine biodiversity in the Makassar Strait.

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