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Authentic Research of Global Fisheries Application Journal (Aurelia Journal)
Published by Politeknik Kelautan dan Perikanan Dumai
ISSN : -     EISSN : 27157113     DOI : -
Core Subject :
Aurelia menerbitkan beberapa artikel dari hasil penelitian asli dan inovatif untuk memberikan pengetahuan dan penelitian terbaru kepada para pembaca tentang ilmu dan teknologi perikanan dan kelautan serta pengembangan pengelolaannya. Scope: Teknologi Perikanan Laut, Agribisnis Perikanan, Manajemen dan Teknologi Budidaya Perairan, Teknologi Pengolahan Hasil Laut, Pengelolaan Sumberdaya Perairan, Kearifan Lokal Masyarakat Pesisir, Teknologi Mekanisasi Perikanan, Kebijakan Kelautan dan Perikanan
Arjuna Subject : -
Articles 14 Documents
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Search results for , issue "Vol 7, No 2 (2025): October" : 14 Documents clear
IMPLEMENTATION OF A WEB-BASED REAL-TIME MONITORING SYSTEM FOR VIBRATION, TEMPERATURE, AND NOISE OF REFRIGERATION MACHINES WITH MICROCONTROL Abrori, M. Zaki Latif; Demeianto, Bobby; Idrus, Muhamad Amril; Marsono, Marsono; Arafat, Yasser; Hermawan, Ade; Nurita, Yani
Aurelia Journal Vol 7, No 2 (2025): October
Publisher : Politeknik Kelautan dan Perikanan Dumai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/aj.v7i2.18186

Abstract

Real-time monitoring of vibration, temperature, and noise in refrigeration machines using microcontrollers is still rarely discussed, although it plays a crucial role in maintaining machine performance and supporting decision-making for predictive maintenance. This research aims to design and implement a microcontroller-based monitoring system capable of measuring and recording machine operational parameters in real-time with adequate accuracy. The system uses an accelerometer sensor for vibration detection, an infrared thermometer for temperature measurement, and an electret microphone for noise monitoring. The data is processed by a microcontroller equipped with an SD card module for storage and a WiFi connection for remote access via the web. The test results show that this device can detect changes in vibration with an Mean Absolute Error value of 0.34 m/s², temperature with a Mean Absolute Percentage Error value of 1.35%, and provides real-time data that can be accessed wirelessly through other devices connected to the WiFi network. The contribution of this research lies in providing a monitoring solution that improves operational efficiency, minimizes the risk of downtime, and supports the optimal management and maintenance of refrigeration machines. 
FINANCIAL FEASIBILITY OF VANNAMEI SHRIMP (Litopenaeus vannamei) FARMING (CASE STUDY: RUPAT UTARA MADANI FOUNDATION) Aisyah, Siti; Zen, Linda Waty; Tetty, Tetty
Aurelia Journal Vol 7, No 2 (2025): October
Publisher : Politeknik Kelautan dan Perikanan Dumai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/aj.v7i2.15165

Abstract

The study of the feasibility of vannamei shrimp (Litopenaeus vannamei)  aquaculture business is very important to be conducted  as an effort  to support  the establishment of productivee cultivation businesses and provide optimal economic benefits for the local community. The objectives of this study was to assess business income, financial feasibility based on the B/C Ratio, Break Even Point, and Payback Period, as well as sensitivity analysis. The average business income within three years was Rp 422,563,849.The financial viability of the Vannamei shrimp (Litopenaeus vannamei) aquaculture business for three years was calculated, obtaining a B/C Ratio of 0.52, a BEP volume of 13,423 kg,a BEP price of Rp 40,373.11, and a payback period of 6 years and three months.Sensitivity analysis on the increase in the price of production input costs by 10%, obtained a B/C Ratio value of 0.44, a BEP volume  14,165 kg, a BEP price of Rp 42,602 and Payback period of 7 years 1 month.The fluctuating selling price of shrimp, combined with the high death rate of shrimp in the second and third years, rendered this shrimp farming enterprise unprofitable. 
IMPLEMENTATION OF COLD CHAIN SYSTEM IN FROZEN POCKET YELLOWFIN TUNA (Thunnus albacares) Napitupulu, Romauli Juliana; Hasna, Hanifah; Panjaitan, Pola S. T
Aurelia Journal Vol 7, No 2 (2025): October
Publisher : Politeknik Kelautan dan Perikanan Dumai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/aj.v7i2.15456

Abstract

Cold chain systems are essential in maintaining the quality and safety of frozen fishery products, particularly yellowfin tuna, which has high economic value. This study evaluates the implementation of the cold chain system in the production of frozen yellowfin tuna saku at a processing company. The research was conducted using a descriptive method through direct observation and temperature monitoring across all stages of the cold chain, including receiving of raw material, processing, and cold storing. Temperature measurements were conducted on tuna, water, and processing rooms, using three tuna samples per observation, with triplicate measurements for each sample. The results demonstrated that tuna temperatures remained below the Indonesian regulatory limit of 4.4°C throughout processing, with raw material temperatures averaging 2.4 ± 0.76°C. Water temperatures during temporary storage averaged 3.5°C, while washing water ranged from 25–27°C. Room temperatures across processing areas were maintained between 22–23°C, complying with the company’s standard maximum of 25°C. The Air Blast Freezer (ABF) operated at –35 to –38.9°C, with an average of –37.76 ± 1.12°C across ten weeks, surpassing both company and national standards (≤ –18°C). Cold storage temperatures ranged from –20°C to –30°C, maintaining the product core temperature at –18°C. Although overall temperature control complied with required standards, the findings indicate the need for more stringent temperature monitoring to minimize fluctuations at several critical stages. The study concludes that the cold chain system is effectively implemented, but improvements in consistent temperature stability are necessary to further prevent quality degradation.
FEASIBILITY ANALYSIS OF WINGED PEARL OYSTER (Pteria penguin) CULTIVATION BUSINESS IN PALABUSA WATER BAUBAU Syah, Prima Insamilandari; Djai, Suhaiba; Ihsan, Fadhli Insani; T, Suhartin; Fitrianti, Fitrianti
Aurelia Journal Vol 7, No 2 (2025): October
Publisher : Politeknik Kelautan dan Perikanan Dumai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/aj.v7i2.17562

Abstract

Mabe pearl oyster (Pteria penguin) cultivation has great potential as an alternative source of income for coastal communities through the production of high-value pearls and value-added by-products. This study aims to analyze the technical and financial feasibility of this cultivation in the waters of Palabusa, Baubau City, Southeast Sulawesi. The research employed a case study method using primary data collected through observation and interviews, and secondary data obtained from literature studies. Data were analyzed both technically and financially. The technical analysis showed that the geographic condition of Palabusa, which is surrounded by small islands, provides natural protection from large waves. Water quality parameters, including temperature (29–31°C), salinity (31–32 ppt), transparency (6–9 m), current velocity (0.22 m/s), depth (6–10 m), and seagrass–sandy substrate, were within the optimal range for pearl oyster cultivation. The applied longline culture system (6×6 m) achieved a high survival rate of 85%. Financial analysis revealed that an initial investment of IDR 166,500,000 for floating cages, boats, and equipment was highly feasible. The Net Present Value (NPV) was IDR 232,700,884 (at a 10% discount rate), Internal Rate of Return (IRR) 60% per year, and Payback Period (PP) 1.58 years (~19 months). The Break-Even Point (BEP) was reached at 5,068 units or a selling price of IDR 9,645 per unit, generating a net profit of IDR 105,308,188 per cycle. The study concludes that mabe pearl oyster farming in Palabusa Waters is technically and financially feasible, offering high profitability and rapid investment returns, making it a promising and sustainable enterprise.

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