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Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology
Published by Universitas Diponegoro
ISSN : 18584748     EISSN : 25490885     DOI : -
Core Subject : Education,
Education
SAINTEK PERIKANAN (p-ISSN: 1858-4748 dan e-ISSN: 2549-0885) adalah jurnal ilmiah perikanan yang diterbitkan oleh Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro. Jurnal ini diterbitkan 2 (dua) kali setahun (Februari dan Agustus).
Arjuna Subject : -
Articles 526 Documents
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CONSUMER ACCEPTANCE OF SENSORY CHARACTERISTICS IN POWDERED BROTH EXTRACTS FROM VANNAMEI SHRIMP (Litopenaeus vannamei) SHELLS WITH DIFFERENT FILLERS Toga Mahaji; Bagus Hadiwinata; Muhamad Latiful Khobir; Nelvia Mai Susanti; Nurul Aulia; Irmayadi Sastra; Robert Martua Simanjuntak
Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology Vol 22, No 3 (2026): SAINTEK PERIKANAN
Publisher : Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ijfst.22.3.281-289

Abstract

To date, shrimp shell waste has not been fully utilized and often causes environmental problems. This study aims to determine the optimal filler formulation for producing shrimp shell powder broth based on consumer preference and product quality characteristics. This study used four filler formulations (total 10 g) in the shrimp shell extract, namely: F1 (10 g wheat flour), F2 (5 g wheat flour + 5 g cornstarch), F3 (5 g wheat flour + 5 g tapioca starch), and F4 (5 g wheat flour + 5 g rice flour). The tests conducted included a hedonic test (30 panellists), a descriptive test (spider web), a chemical analysis (proximate composition), and a microbiological test (Total Plate Count/TPC). The hedonic test results showed that formula F3 (a mixture of wheat flour and tapioca) was the best and most preferred by the panellists, with an average liking score of 4.11. Product F3 showed superior characteristics in colour, aroma, taste, texture, and solubility compared with the other formulations.
ANALYSIS OF THE INTERACTION BETWEEN TIME AND BAIT TYPE ON THE EFFECTIVENESS OF CATCHING BIJINANGKA FISH (Upeneus moluccensis) Julius Mose Rahaningmas; Armin Armin
Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology Vol 22, No 3 (2026): SAINTEK PERIKANAN
Publisher : Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ijfst.22.3.211-217

Abstract

Fishing for bijinangka (Upeneus moluccensis) in the waters of Tual City generally involves using a handline in the morning and evening with worms (Dendronereis pinnaticirris) and anchovies (Engraulis sp.) as bait. This study aims to analyze the effects of bait type, fishing time, and the interaction between the two on the catch yield of bijinangka. The method used in this study was experimental fishing with a factorial design. Data were analyzed using two-way ANOVA via the SPSS application. The results showed that bait type had a significant effect on catch yield (F(1,92) = 309.897, p < 0.001), accounting for 77.1% of the variation. The fishing time factor also showed a significant effect (F(1,92) = 791.890, p < 0.001), accounting for 89.6% of the variation. There was a significant interaction between bait type and fishing time (F(1,92) = 65.533, p < 0.001) with a partial eta-squared value of 0.416. The most effective combination for catching bijinangka fish is using  worms as bait in the morning. 
EFFICACY OF HONEY AS A NATURAL EXTENDER FOR PRESERVING THE POST-THAW PHYSIOLOGICAL PROFILE OF KISSING GOURAMI (Helostoma temminckii) SPERM Revita Syefti Palmi; Muhammad Abror; Azmi Afriansyah; Danang Yonarta
Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology Vol 22, No 3 (2026): SAINTEK PERIKANAN
Publisher : Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ijfst.22.3.274-280

Abstract

Cryopreservation is a crucial technique for preserving fish spermatozoa; however, its success heavily relies on the efficacy of extenders in mitigating cellular damage during the freeze-thaw process. Honey, rich in antioxidants and capable of modulating extracellular osmotic pressure, presents a promising natural cryoprotectant. This study aimed to determine the optimal concentration of honey as a natural extender for the cryopreservation of kissing gourami (Helostoma temminckii) spermatozoa. The experimental study utilized a Completely Randomized Design (CRD) with three biological replicates to evaluate extender formulations by combining honey and Ringer's lactate solution at concentrations of 0% (P0), 0.25% (P1), 0.5% (P2), and 0.75% (P3) honey, supplemented with 10% dimethyl sulfoxide (DMSO) as an intracellular cryoprotectant and 10% egg yolk. Initial evaluations of fresh sperm demonstrated an optimal physiological baseline: a volume of 0.6 mL, pH 7.0, milky white coloration, a concentration of 1.11 × 10⁹ cells mL⁻¹, a mass movement score of 5, and 93.2% viability. After 14 days of cryopreservation in liquid nitrogen (-196°C), Analysis of Variance (ANOVA), followed by the Least Significant Difference (LSD) test, revealed that the addition of 0.5% honey (P2) exhibited the most effective and statistically significant (p<0.05) protective efficacy. This optimal dose successfully maintained a mass movement score of 4, prolonged motility duration to 112 seconds, and preserved the highest spermatozoa viability at 76.18%. In conclusion, supplementing with 0.5% honey serves as an effective natural extender as it significantly minimizes cold-shock damage while preserving the physiological viability and motility dynamics of H. temminckii spermatozoa during low-temperature storage.
DIFFERENCES IN PLANKTON COMMUNITY STRUCTURE BASED ON ABUNDANCE AND BIOMASS IN A TROPICAL RESERVOIR Syahnan Aly Lubis; Riska Aprisanti; Zakiah Zakiah
Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology Vol 22, No 3 (2026): SAINTEK PERIKANAN
Publisher : Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ijfst.22.3.290-299

Abstract

Plankton are important bioindicators for assessing the ecological condition of water bodies. However, an abundance based approach does not always reflect energy distribution within an ecosystem because small organisms can dominate numerically without contributing comparable biomass. his situation can cause ecological decoupling, a discrepancy in ecological interpretation between abundance-based and biomass-based indicators. This study aims to analyze and compare plankton community structure based on abundance and biomass and to evaluate the presence of ecological decoupling in the Koto Panjang Reservoir as a representative of a tropical reservoir influenced by hydrological dynamics and anthropogenic pressures. The study was conducted from May 2025 to April 2026 at six stations representing the riverine, transitional, and lacustrine zones. Plankton samples were analyzed using the Sedgwick–Rafter Counting Cell method, while biomass was estimated using the biovolume approach. The analysis included Bray–Curtis cluster analysis, ecological indices, Pearson correlation, linear regression, and Bland–Altman analysis. The results revealed three distinct spatial zones (riverine, transitional, and lacustrine), with plankton communities dominated by Staurastrum spp., members of the Desmidiaceae family. Phytoplankton abundance ranged from 531,000 to 1,297,000 cells L⁻¹, while phytoplankton biomass ranged from 0.19 to 0.85 mg L⁻¹. Abundance-based indices showed higher Shannon diversity values (2.74–2.97) compared to biomass-based indices (0.54–0.66). The relationship between the two approaches was relatively weak (r = 0.41–0.48; R² = 0.17–0.23 indicating differences in how community structure is represented. Pearson correlation analysis, linear regression, and Bland–Altman plots revealed a weak relationship and low agreement between the two approaches, confirming ecological decoupling. These findings suggest that integrating abundance- and biomass-based indicators is necessary to make assessments of the ecological condition of tropical reservoirs more comprehensive and representative of community structure and energy distribution within the ecosystem.
INCOME DIVERSIFICATION AND FINANCIAL STABILITY OF FISH PROCESSING MICRO-ENTERPRISES IN URBAN PRABUMULIH, SOUTH SUMATRA Muzzakie Nur Habibi; Yunita Yunita; Selly Oktarina
Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology Vol 22, No 3 (2026): SAINTEK PERIKANAN
Publisher : Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ijfst.22.3.202-210

Abstract

Small-scale fish processing groups (Poklahsar) play a crucial role in supporting urban food security and local economies. However, they frequently face financial instability due to market volatility and fluctuating access to raw materials, necessitating effective income diversification strategies. This study aims to evaluate the income diversification on the financial stability of a fish processing and marketing group (Poklahsar) in Prabumulih City. A case study approach was employed, focusing on a single, integrated collective enterprise (Poklahsar Etalase) by conducting a census of all its 10 individual members, with data collected from August 2025 to January 2026 through structured questionnaires and financial records. Income diversification was assessed using the Herfindahl-Hirschman Index (HHI), while financial stability was evaluated through net cash flow and operational margins. The results indicate that the enterprise maintains an optimally diversified revenue stream, with an HHI value of 0.5001 resulting from a balanced composition of 49.14% fish-based and 50.86% non-fish-based products. This diversified income structure serves as a critical strategic buffer, effectively mitigating market volatility and resulting in a positive monthly net income of IDR 8,720,000.00. The findings confirm that product diversification is the primary determinant of financial stability, providing the necessary liquidity and operational resilience for the enterprise needs.. It is recommended that the group focus on strengthening raw-material supply chains and managerial coordination to sustain this diversified income structure and support the scalable growth of urban microenterprises.
AN ARTIFICIAL NEURAL NETWORK APPROACH FOR PREDICTING PELAGIC FISH HABITATS IN FISHERIES MANAGEMENT AREAS (WPP) 573 USING MULTI-PARAMETER SATELLITE DATA Rosyid Paundra Gamawan; Nur Mohammad Farda; Prima Widayani; Favian Mafazi Giska Putra; Widia Pangestika; Ailsa Afra Mawarid; Irfani Anis
Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology Vol 22, No 3 (2026): SAINTEK PERIKANAN
Publisher : Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ijfst.22.3.241-248

Abstract

Fisheries Management Area (WPP) 573 is one of the upwelling regions of the Indian Ocean supporting both neritic small pelagic and oceanic pelagic fisheries, and is affected by complex climate variability. This research modeled spatial probabilities of fish pelagic habitat using an optimized shallow architecture of a Feedforward Network, specifically a Multi-layer Perceptron integrated with oceanographic satellite data. This research utilized 492 validated fishing coordinates from Global Fishing Watch (GFW) collected throughout 2025 as presence labels. At the same time, oceanographic variables included sea surface temperature, distance to the nearest coral reef, chlorophyll-a, salinity, sea surface elevation, current velocity, and bathymetry. To prioritize model generalization and mitigate overfitting, this research implemented the MLP with a single hidden layer containing three neurons, optimized via the L-BFGS algorithm with strong regularization. The final model with spatially- constrained pseudo-absences, environmental distance filtering obtained a True Skill Statistic (TSS) of 0.68, a 5-fold cross-validation accuracy of 83.95% and a presence precision of 95%, indicating that the model possess a good ability to discriminate among habitats and it is robust to variation. The permutation importance highlighted SST as the strongest predictor (0.1386), followed by salinity (0.0976) and current velocity (0.0866). Dynamic habitat probability maps generated reveal fish catch potential zones that correspond to the biophysical conditions of the water mass. In summary, this study demonstrates that MLP-based prediction, reinforced by stringent parameter optimization, is a very suitable approach to identify pelagic fish habitats, thus assisting in fishing operations and sustainable fishery management in WPP 573.

Page 53 of 53 | Total Record : 526

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