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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 181 Documents
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PROFITABILITY OF THE TAMBAN SALAI FISH PROCESSING BUSINESS IN SINGKEP PESISIR DISTRICT LINGGA REGENCY Anisa, Nur; Tetty, Tetty; Hafsar, Khairul
Aurelia Journal Vol 6, No 2 (2024): October
Publisher : Politeknik Kelautan dan Perikanan Dumai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/aj.v6i2.13513

Abstract

Singkep Pesisir sub-district in Lingga Regency is home to six beautiful villages, including Berindat, Kote, Lanjut, Pelakak, Persing, and Sedamai. The local residents are primarily fishermen, and the area is well-known for the Tamban Salai fish processing business. This business is committed to providing high-quality fish products and is a significant contributor to the local economy. Our research aimed to determine the income and profitability of the Tamban Salai Fish Processing business in Singkep Pesisir district. We used a quantitative descriptive method and collected data through a census method. The financial analysis included Benefit Cost Of Ratio (B/C Ratio), Revenue Cost Of Ratio (R/C Ratio), Break-Even Point (BEP Unit), Break-Even Point (BEP Rupiah), Return On Equity (ROE), and Return On Investment (ROI) to measure the feasibility and profitability of the business. Our research found that the Tamban Salai Fish Processing business is a highly feasible and profitable business with a B/C Ratio of 4.00, R/C Ratio of 5.00, BEP Unit of 1,211.62 kg, and BEP Rupiah of Rp10,787.91. The Return On Equity (ROE) was 84%, and Return On Investment (ROI) was 35%. At the Tamban Salai Fish Processing business, we believe in delivering the best quality products to our customers while contributing to the local economy. Our commitment to excellence has allowed us to establish ourselves as a trustworthy and reliable business. We are proud of our success and look forward to continuing to serve our customers with the same dedication and commitment.
OPTIMIZING THE SUBSTITUTION LEVEL OF Lemna perpusilla IN COMMERCIAL FEED TO ENHANCE GROWTH AND FEED EFFICIENCY OF COMMON CARP (Cyprinus carpio) FINGERLINGS Sinaga, Daniel; Matondang, Muhaini
Aurelia Journal Vol 7, No 1 (2025): April
Publisher : Politeknik Kelautan dan Perikanan Dumai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/aj.v7i1.14022

Abstract

Feed production costs constitute the largest expense incurred by fish farmers. Common carp (Cyprinus carpio) is highly favored by consumers due to its delicious taste and affordable price. Rearing common carp fingerlings requires high costs, particularly for feed provision. Feed supplements are needed to enhance feed quality, digestibility, and growth efficiency to reduce feed expenses. One potential feed ingredient derived from aquatic plants that can be used as a supplementary feed is Lemna perpusilla, which has high protein content and effectively improves feed quality for several freshwater fish species. This study used common carp fingerlings measuring 3–5 cm and was conducted from June to July 2023 at UPR Amphibi Batang Toru. A Completely Randomized Design (CRD) was applied with five treatments and three replications, using Lemna perpusilla supplementation at 0% (control), 10%, 20%, 30%, and 40%. The final results concluded that the most optimal and efficient Lemna perpusilla supplementation in feed was 40%, which significantly influenced the growth of common carp.
CALCULATION OF COOLING LOAD IN COLD STORAGE FOR CATCH STORAGE Tumpu, Mula; Putra, Moh. Nurhabibie Eka; Siahaan, Juniawan Preston; Abrori, M. Zaky Latief; Demeianto, Bobby; Haris, Dendi
Aurelia Journal Vol 6, No 2 (2024): October
Publisher : Politeknik Kelautan dan Perikanan Dumai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/aj.v6i2.14671

Abstract

This study aims to calculate the cooling load required in Cold Storage to store fish catches. Cold Storage is an important facility in the fisheries industry to maintain the quality and freshness of the product. Accurate cooling load calculation is essential to design an efficient and energy-saving refrigeration system. The methodology used includes data collection on Cold Storage specifications, environmental conditions, and characteristics of the stored products. The cooling load is calculated by considering factors such as transmission loads through walls, roofs, and floors; product loads; air infiltration loads; internal loads from lights, equipment, and personnel; and other loads. The calculation results show that the total cooling load for Cold Storage with a certain capacity is 17.68 kW. Sensitivity analysis was conducted to evaluate the effect of various parameters on the cooling load. This study also provides recommendations for optimizing Cold Storage design and operational strategies to improve energy efficiency. The results of this study can be used as a reference in designing and operating Cold Storage for more effective and economical storage of fish catches.
GROWTH PERFORMANCE AND SURVIVAL RATE OF SAND LOBSTER (Panulirus homarus sp.) IN AN INDOOR SYSTEM Khaerudin, Khaerudin; Indrayati, Artin; Aulia, Deni; Sabariyah, Nunung; Umidayati, Umidayati
Aurelia Journal Vol 7, No 1 (2025): April
Publisher : Politeknik Kelautan dan Perikanan Dumai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/aj.v7i1.15064

Abstract

Sand lobster (Panulirus homarus sp.) is one of the promising fishery commodities with high economic value and is considered a leading export species in Indonesia's fisheries sector. The cultivation of sand lobster using floating net cages (KJA) in the sea still faces many challenges. Therefore, innovative cultivation technologies for lobsters are urgently needed. This study aims to assess the growth performance and survival rate of sand lobsters cultivated in a closed system (indoor system). The research was conducted using four fiberglass tanks measuring 4 x 2 x 1 m (water height 0.5 m). The average initial body weight (IBW) of the lobster seed used was 79.8 ± 5.8 (mean ± SE) with a stocking density of 10 individuals/m². The feed provided consisted of trash fish and golden apple snails, with a feeding rate of 15% of the total biomass. Growth sampling was conducted every three weeks. Sand lobsters cultivated for nine weeks (63 days) had an average final body weight (FBW) of 91.1 ± 5.2 grams/individual. The weight gain (WG) and specific growth rate (SGR) of the sand lobsters during the study were 14.2 ± 1.5% and 0.22 ± 0.02%, respectively. The feed conversion ratio (FCR) during the study was 10.1 ± 0.1, while the average daily growth (ADG) was 0.19 ± 0.01 grams/day. The survival rate (SR) of the sand lobsters decreased over the maintenance period, reaching 75.6 ± 2.8% by the end of the study. 
IDENTIFICATION OF THE PRESENCE OF DUGONG, SEAGRASS HABITAT, AND THREATS IN THE WATERS OF BANTEN PROVINCE Khalifa, Muta Ali; Saad, Moch; Santoso, Prakas; Prabowo, Nico Wantona; Jasmine, Agitha Saverti; Dewantara, Esza Cahya
Aurelia Journal Vol 6, No 2 (2024): October
Publisher : Politeknik Kelautan dan Perikanan Dumai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/aj.v6i2.15021

Abstract

The waters of Banten Province are one of the habitats of Dugong and many other protected species because it is supported by the many seagrass ecosystems found. The purpose of this study was to identify the presence, seagrass beds, dugong, other protected species, and their threats in Banten Waters. Information data regarding the presence of dugong, threats to dugong, community perceptions regarding dugong and seagrass beds, as well as additional information on other protected species (such as turtles, dolphins, sharks and whales) were taken by conducting in-depth interview methods to respondents. The interview questionnaire was based on the CMS-UNEP standardized dugong questionnaire. The number of respondents was determined with a proportion of 70% in locations with strong dugong information and the rest in neighboring locations. The results showed that dugong, dolphins, turtles, sharks and whales were found in Pandeglang Waters. While in Serang Waters dugong, porpoise, dolphin, turtle and whale shark were found. Threats to the life of dugong and other biota in Pandeglang Waters are the presence of gill net fishing gear and sero, if there is a dugong caught, it is not sold for food but sold to Sea World Ancol under the pretext of rescue.  There are two threats in Serang: poachers from the Wadas area and the construction of an international port that changes habitat, pollutes, and can cause accidents. Seagrass beds can be found almost along the entire coast of Pandeglang and Serang. The main threat to seagrass beds is environmentally unfriendly coastal change.
QUALITY CHARACTERISTICS OF CANNED CRAB PROCESSING (Portunus pelagicus) Sipahutar, Yuliati Hotmauli; Dijaya, Ganis Aprila; Afifah, Rufnia Ayu; Arif, Galih AF
Aurelia Journal Vol 6, No 2 (2024): October
Publisher : Politeknik Kelautan dan Perikanan Dumai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/aj.v6i2.13759

Abstract

Crab is a fishery commodity that has high economic value. This research aims to determine the quality characteristics of the canned crab processing, which consists of: processing process flow, quality testing of raw materials and final products, application of temperature, yield, productivity and waste management. Data collection using observation, interviews and company documentation. Data analysis using comparative descriptive. The research results show that pasteurization of crab in cans goes involve 14 process stages starting from receiving raw materials to delivery. The organoleptic quality test result for raw materials and final products were 8,16 and 8,25. The results of microbiological test according to SNI, namely the TPC of raw materials and final products is 3.4 x 104 and 11 x 103 col/g. E. coli, Salmonella, S. aureus, V. cholerae were negative, there were no foreign body findings. The Chloramphenicol (CAP) test results for raw materials and final products were 0.015 and 0.012 ppb. Total weight for Jumbo Black can 96.46%, Lump Black Can 96,97%, Lump Seawings 96,25%, Claw Meat 94.48% and Cocktail 98.46%. The application of temperature has been good, namely receiving raw materials 1,35°C, sorting 3,28°C, Darkroom checking 3,53°C, Mixing 6,43°C, Filling and weighing 5,34°C and Closing cans 9,16°C. The yield at the picking stage was 32,8% and the sorting stage was 96,02%.  Productivity at the Special meat and Claw meat sorting stage reached 1,92 kg/hour/person and the filling and weighting stage was 20,5, cans/hour/person. Shell's solid waste is sold for animal feed, liquid waste is processed through the Waste Water Treatment Plant.
THE GROWTH PERFORMANCE OF WHITE SNAPPER (Lates calcarifer) FINGERLINGS IN ODE AQUACULTURE AND AGRICULTURE HATCHERY UNIT, BRUNEI-MUARA BRUNEI DARUSSALAM DISTRICT Ritonga, Lusiana BR; Harijono, Teguh; Asmarany, Anja; Widodo, Agus; Aonullah, Asep Akmal; Akbar, M.Baihaqi; Affisramyraj, Rizky
Aurelia Journal Vol 7, No 1 (2025): April
Publisher : Politeknik Kelautan dan Perikanan Dumai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/aj.v7i1.14754

Abstract

White snapper (Lates calcarifer) is a high value aquaculture commodity with increasing market demand. This study aimed to analyzed the growth performance of white snapper fry during the nursery phase at the ODE Aquaculture and Agriculture Hatchery Unit, Brunei-Muara District, Brunei Darussalam, from March to June 2023.The nursery utilized controlled fiberglass tanks equipped with aeration and a flow-through water system. Two types of tanks were used: rectangular tanks measuring 4 × 1.5 × 1 m (capacity: 6,000 L) and circular tanks with a diameter of 2 m (capacity: 3,140 L). A total of 100,000 fry were stocked, with 30,000–40,000 fry per tank. Observed parameters included survival rate (SR), absolute length growth rate, absolute weight growth rate, specific growth rate (SGR), and feed conversion ratio (FCR). Water quality parameters measured were temperature, salinity, and pH. Results indicated an absolute length growth rate of 1.2 cm/week, surpassing previous studies reporting only 0.4 cm/week. The absolute weight growth rate was 1.3 g/week, exceeding the 0.6–1 g/week range reported in other research. The FCR was 0.33, demonstrating excellent feed efficiency. However, the survival rate was 30.77%, below the standard for controlled nursery systems (>50%), likely due to high stocking density and cannibalism. Harvest size ranged from 8 to 9 cm. Water quality remained stable, with temperatures between 31–32.5°C, pH levels from 7.6–8.3, and salinity ranging from 30–32 ppt. Despite the low survival rate attributed to high stocking density, the nursery phase at this facility achieved commendable growth rates compared to previous studies. This success is supported by stable water quality and the provision of high-protein feed.
UTILIZATION AND ENGINEERING OF PISTON WASTE BY SHOT PEENING METHOD AS ALTERNATIVE MATERIAL FOR FISHING VESSEL PROPELLERS Priyambodo, Bambang Hari; Yaqin, Rizqi ilmal; Fattah, Rauuf Nur; Slamet, Sugeng
Aurelia Journal Vol 6, No 2 (2024): October
Publisher : Politeknik Kelautan dan Perikanan Dumai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/aj.v6i2.14967

Abstract

This study aims to evaluate the utilization of used piston waste as an alternative material for making fishing boat propellers. Engineering is carried out to improve its mechanical properties by shot peening treatment. Shot peening is a surface treatment method by shooting small steel ball particles in a controlled manner. In this study, used pistons were recycled and used as the basic material for propellers, then shot peening was carried out with a pressure of 8 bar with variations in shooting duration for 5, 10, 15, and 20 minutes. Testing includes testing the chemical composition of the specimen, tensile testing, and observing the micro structure. Tensile testing is to determine mechanical strength, while macro photography is to identify changes in surface structure. The results of the chemical composition test state that the recycled piston is AL-Si-Cu. Meanwhile, the results of the tensile test show that the longer the shot peening duration, the tensile strength of the material increases significantly. Shot peening with a duration of 20 minutes gives the highest strength. The increase in tensile strength is 43% or 113 MPa compared to the non-treatment specimen. Micro structure observations show that the shot peening process creates a denser surface layer, so that tensile strength can be increased. This research is expected to be a reference for the propeller industry to increase production efficiency and sustainability.
THE ECONOMIC IMPACT OF SAND MINING ON COASTAL COMMUNITIES IN PANTAI HARAPAN VILLAGE, LINGGA REGENCY Fauzy, Fauzy; Hafsar, Khairul; Tetty, Tetty
Aurelia Journal Vol 7, No 1 (2025): April
Publisher : Politeknik Kelautan dan Perikanan Dumai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/aj.v7i1.15768

Abstract

Sand mining activities can absorb labor and also be a source of pollution that causes damage in the form of mud and turbidity. Since its establishment in 2019 to 2024, there has been no clarity regarding the mining permits carried out. Sand mining activities involve taking river sand and causing environmental impacts that result in river water pollution around the mine and even into the sea. The purpose of the study was to calculate the income of coastal communities before and after sand mining, calculate the percentage change in income of coastal communities due to sand mining and calculate the percentage of labor absorption created from sand mining activities in Pantai Harapan Village, Lingga Regency. The research was conducted in March-April 2024 in Pantai Harapan Village, Selayar District using a quantitative descriptive method. The number of samples in the study was 42 respondents. The research uses income analysis, percentage changes in income and labor absorption with existing formulas using Microsoft Excel software. The results of the study showed that the average change in community income before mining was IDR 24,517,452/year, after mining it was IDR 37,297,230/year. The percentage change in income of the people of Pantai Harapan Village after mining is 20%. The absorption of labor due to sand mining is 4%.
PREVALENCE OF IRIDOVIRUS AND VIRAL NERVOUS NECROSIS IN CANTANG GROUPER (Ephinephelus fuscogottatus x Ephinephelus lanceolatus) Alfianti, Fadia Tantri; Wahyudi, Dzikri; Kusuma, Prasetya Wahyu; Wibowo, Wahyu Budi; Prabowo, Guntur; Suhermanto, Achmad
Aurelia Journal Vol 6, No 2 (2024): October
Publisher : Politeknik Kelautan dan Perikanan Dumai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/aj.v6i2.13467

Abstract

Cantang grouper is a leading commodity, especially hatchery centers, namely East Java and Bali which is Indonesia's flagship. The growth of cantang grouper fish is hampered by one of the diseases caused Iridovirus and Viral Nervous Necrosis (VNN). These two diseases attacks the seed stage which causes high mortality, so that early detection is needed for preventive action. This study aims to detect and inventory of Iridovirus and VNN in cantang grouper. This research was carried out at BPBAP Situbondo, Irodovirus was detected using conventional PCR and VNN using rRT-PCR. Cantang grouper samples measuring 2,5-12 cm came from Situbondo and its surroundings, Bali and Lombok with a total of 23 samples. The test results showed that all samples were negative for Iridovirus, while the VNN examination showed 3 positive samples and 20 negative samples. Observation of clinical symptoms showed that the cantang grouper were in good health, swimming actively and did not show symptoms of Iridovirus and VNN infection. The prevalence of VNN infection in cantang grouper 13,04% which was included in the category of frequent infections.

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