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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
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Articles 14 Documents
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Search results for , issue "Vol 7, No 2 (2025): October" : 14 Documents clear
OPTIMIZATION OF WATERJET THRUST FOR FISHING BOAT USING THE TAGUCHI METHOD Wahid, Mohammad Abdul; Muzaka, Khairul; Umar, Mega Lazuardi
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.v7i2.17301

Abstract

Indonesia is an archipelagic country with vast waters. Therefore, it is necessary to develop water transportation tools that support the exploitation of marine resources. Therefore, this study optimizes the waterjet thrust on fishing boat to determine the impact on fishermen's profits. Simulation to obtain the velocity at the nozzle outlet is carried out using CFD software.The purpose of this study is to obtain Waterjet Design Variation Variables that produce optimum Thrust Force. The design variables varied are the nozzle outlet diameter, the number of stator blades, and the number of rotor blades. Where each design variable has 3 levels and its degrees of freedom are 6. Thus, the Experimental Design uses the L9 orthogonal array matrix. The L9 orthogonal array matrix has 3 columns and 9 rows that can be used for 3 independent variables, each of which has 3 levels. From the test results, the smallest thrust force is 24.46 N in the 3rd Variation. Meanwhile, the highest thrust force is found in Variation 5, with design variables of nozzle outlet diameter of 80 mm, number of rotor blades of 4, and number of stator blades of 6. The highest thrust force is 38.58 N. The design variations that affect the thrust force are nozzle outlet diameter, number of stator blades and number of rotor blades. The results of the research have an impact on making it easier for fishermen to choose the specifications of the waterjet they will use.
OPERATIONAL WORK OF A SQUID TRANSPORTING SHIP CASE STUDY ON KM PERINIS JAYA 89 Ikhsan, Suci Asrina; Sari, Iya Purnama; Widagdo, Aris; Djunaidi, Djunaidi; Sumitro, Martinus Robinson; Aidil, Fikri
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.v7i2.16754

Abstract

Carrier vessels play a crucial role in the capture fisheries industry, particularly as transportation modes responsible for delivering harvested products from fishing grounds to the shore or port. This strategic function requires the implementation of clear Standard Operating Procedures (SOPs) to ensure that handling practices comply with regulations and meet quality standards. Therefore, assessing the application of SOPs on squid carrier vessels is essential to determine the extent to which existing procedures align with proper handling standards and regulatory requirements. The objective of this study is to evaluate the conformity of SOP implementation on squid carrier vessels with applicable regulations, identify weaknesses or inconsistencies in operational practices, and provide recommendations for improvements that may enhance product quality, operational efficiency, and the sustainability of fisheries enterprises. This research was conducted from March to May 2025, using KM Perintis Jaya 89 as the research object, a squid carrier vessel owned by Perintis Jaya International operating in Benoa, Bali. Data collection was carried out through direct observation during the vessel’s operational trips, including documentation of the number of trips, travel duration, cargo volume, and fuel consumption. The main focus of the assessment was the handling of squid, encompassing loading, storage, and unloading activities carried out by the carrier vessel. The findings indicate that KM Perintis Jaya 89 has implemented SOPs in accordance with policy directives. Proper and consistent SOP implementation supports effective and efficient vessel operations, thereby ensuring the maintained quality of squid products destined for market distribution.
UTILIZATION OF MANGROVE FRUIT (RHIZOPORA sp) AS AN ACTIVE INGREDIENT IN MAKING BODY SCRUB PREPARATION Pangestika, Widya; Nusaibah, Nusaibah; Tresnawati, Intan Yulia
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.v7i2.15516

Abstract

Body scrub is a cosmetic product that can remove dead skin cells, brighten the skin, and exfoliate dead skin cells in the stratum corneum. Body scrubs can be made from several types of plants, one of which is mangrove fruit. The purpose of this research is to create a body scrub that can moisturize the skin and contain high levels of antioxidants.This study was conducted on 4 treatments with the addition of mangrove (Rhizophora sp), namely F0 (Control), F1 (10% mangrove), F2 (15% mangrove) and F3 (20% mangrove). From the hedonic test conducted on 30 woman panelists aged 17-25 years, it was found that the sample that obtained the highest score was F1. Based on the results of the homogeneity test, it is known that all treatments in this study showed that the body scrub produced from this study was homogeneous. The results of the pH test showed that all body scrub preparations met the skin pH criteria, 4.5-7. Skin moisture after being smeared  for 5 days with body scrub increased every days.The results of the irritation test for each test sample showed negative results, The results of the antioxidant test (IC50) in F0 (Control) were 86664.78 mg/kg, in F1 (Addition of 10% mangrove) the IC50 value was 696.41 mg/kg, this shows that the addition of mangrove (Rhizophora sp) has a significant effect on the antioxidant activity of the body scrub preparation. This research proves that Rhizophora sp mangrove can be used as a body scrub preparation.
WATER QUALITY AND VIBRIO DYNAMICS IN VANNAMEI SHRIMP HATCHERY AT PT DELTA WINDU PURNAMA, SITUBONDO Dwi Saputro, Nella Azzahra; Suprakto, Bambang; Aonullah, Asep Akmal
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.v7i2.15680

Abstract

Vannamei shrimp (Litopenaeus vannamei) is a high-value aquaculture commodity. However, during the post-larval rearing phase, fluctuations in water quality and high abundance of Vibrio can cause stress and larval mortality. Therefore, evaluation of rearing practices and water quality is important to support successful juvenile shrimp production. This study aims to evaluate water quality, health, and growth of vannamei shrimp juveniles during the post-larval rearing period. Rearing was conducted from PL4–5 to PL10–11 using three tanks measuring 6 x 4 x 2 meters (water volume 40 tons), each labeled A6, B4, and B11. The fry quality results showed that all tanks achieved grade A, with optimal stadia development and gut muscle ratio. Observations on juvenile shrimp health revealed no necrosis, low Vibrio infection, and high stress resistance. Observations on post-larval growth showed an average length of 7.76–9.27 mm and an average survival rate of 88%, exceeding the minimum standard of SNI 7311:2009. Therefore, effective water quality management and control of Vibrio abundance during the rearing period of shrimp post-larvae can significantly improve the survival rate and quality of vannamei shrimp post-larvae.
THE EFFECT OF SHRIMP PROTEIN HYDROLYSATE FORTIFICATION (Acetes erythareus) ON THE QUALITY OF FARFALLE PASTA Husein, Rheza Aryanda; Suparmi, Suparmi; Sumarto, Sumarto
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.v7i2.16524

Abstract

This study aims to determine the effect of rebon shrimp protein hydrolysate fortification (Acetes erythareus) on the quality of farfalle pasta which includes organoleptic aspects (appearance, texture, aroma, and taste) and chemical content (water content, ash, protein, fat, and carbohydrates). The method used was a non-factorial Completely Randomized Design (CRD) with four fortification concentration treatments, namely 0% (P0), 5% (P5), 10% (P10), and 15% (P15) of the weight of wheat flour. The results showed that the addition of rebon shrimp protein hydrolysate had a significant effect on all quality parameters tested. Treatment P10 was the best treatment based on a combination of organoleptic test results and nutritional content, with characteristics of bright yellow color, typical pasta aroma with a slight shrimp odor, dense and brittle texture, and delicious taste with a touch of shrimp flavor. Proximate values in P10 treatment included water content of 8.79%, ash 1.32%, protein 14.65%, fat 1.39%, and carbohydrate 73.85%. Fortification of rebon shrimp protein hydrolysate was proven to significantly improve the quality and nutritional value of farfalle pasta.
THE EFFECT OF SHRIMP PROTEIN HYDROLYSATE FORTIFICATION (Acetes erythareus) ON THE QUALITY OF RICE FLOUR INSTANT PORRIDGE Yova, Surya Dirga; Suparmi, Suparmi; Dewita, Dewita
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.v7i2.16633

Abstract

The demand for nutritious and practical instant food products continues to increase; however, many rice flour–based instant porridges still have low protein content, indicating the need for fortification innovations to enhance their nutritional value. Rebon shrimp (Acetes erythareus) is an abundant protein source with potential use as a fortification ingredient, yet its application in the form of protein hydrolysate and the optimal concentration required to improve product quality have not been extensively studied. This study aimed to determine the effect of rebon shrimp protein hydrolysate fortification on the quality of rice flour–based instant porridge and to identify the best concentration that produces an optimally formulated product. The research employed a Completely Randomized Design (CRD) with four treatments: B0 (0%), B5 (5%), B10 (10%), and B15 (15%) addition of protein hydrolysate based on the weight of rice flour. The parameters tested included organoleptic attributes (appearance, aroma, taste, and texture) and chemical analysis (moisture, ash, protein, fat, and carbohydrate contents). The results demonstrated that fortification with rebon shrimp protein hydrolysate significantly affected all quality parameters tested. The B10 treatment produced the best quality, with scores for appearance (8.28), aroma (7.48), texture (8.39), taste (7.08), and nutritional composition including moisture (4.82%), ash (1.99%), protein (9.20%), fat (3.35%), and carbohydrates (89.15%), all of which meet the quality standards for instant porridge based on SNI 01-7111.4-2005. It can be concluded that fortification with 10% rebon shrimp protein hydrolysate is the optimal concentration for improving the quality and nutritional value of rice flour–based instant porridge. 
MONITORING MANGROVE COVER DYNAMICS FOLLOWING SHRIMP POND EXPANSION USING NORMALIZED DIFFERENCE VEGETATION INDEX (NDVI) ANALYSIS IN BULAKSETRA, PANGANDARAN Hakim, Muhammad Romdonul; Firdaus, Anas Noor; Baswantara, Arif; Kelana, Perdana Putra
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.v7i2.17410

Abstract

The mangrove ecosystem along the coast of Bulaksetra, Pangandaran, West Java, plays a crucial role in mitigating potential tsunami disasters. However, over the last five years, the Bulaksetra mangrove ecosystem area has seen intensive operation of local shrimp ponds, which has negatively impacted the growth and health of the surrounding mangrove stands. This study aims to monitor the changes in mangrove cover from 2020 to 2024 within the Bulaksetra mangrove ecosystem using Sentinel-2 satellite imagery. The methodology employed to determine the extent and condition of mangrove cover involves the analysis of the Normalized Difference Vegetation Index (NDVI) processed using the Google Earth Engine (GEE) platform. The results indicate significant habitat degradation within the Bulaksetra mangrove ecosystem, evidenced by a 96.94% loss of the Dense canopy class by 2024. This shift in density class is characterized by a transition from the Dense class to the Sparse (54.37%) and Moderate (42.58%) classes, accompanied by a 5.18% decrease in the total mangrove area. Conversely, the area occupied by shrimp ponds has continuously expanded, with a growth rate reaching 1.31 hectares per year. The expansion of shrimp ponds demonstrates a negative correlation with mangrove cover in the Bulaksetra mangrove area during the 2020 – 2024 period.
QUALITY ANALYSIS AND FORMALIN IDENTIFICATION OF SALTED FISH AT THE PASAR PAGI PEMALANG, CENTRAL JAVA Afifah, Rufnia Ayu; Sayuti, Mohammad; Nur, Shinta Dia
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.v7i2.15045

Abstract

Salted fish is one of the popular fish processing products in Indonesia. Even popular, currently, many salted fish containing formalin are found on the market. Consumption of salted fish with formalin poses serious health risks to humans. This study aimed to analyze the quality of salted fish and identify the presence of formalin in salted fish sold at the Pemalang Morning Market, Central Java. A total of 12 types of salted fish were identified at the Pemalang Morning Market, comprising 21 individual samples. These samples were tested for quality parameters including moisture content, salt content, ash content, total bacterial contamination, and Escherichia coli contamination. In addition, qualitative tests were conducted to detect the presence of formalin. If formalin was detected, quantitative analysis was subsequently performed. The test results showed that the moisture content of the samples ranged from 22.92% to 38.19% (SNI maximum limit: 40%), the salt content ranged from 12.59% to 13.94% (SNI standard: 12–20%), and the ash content ranged from 0.22% to 0.29% (SNI maximum limit: 0.3%). Total bacterial contamination and E. coli levels also complied with the SNI standards, with limits of 5×10⁵ colonies/gram and <3 MPN/gram, respectively. Formalin identification results revealed that one out of the 21 salted fish samples contained formalin, with a measured concentration of 15.35 ppm. Based on these findings, it can be concluded that the quality of salted fish sold at the Pemalang Morning Market, Central Java, generally complies with the SNI standards. However, one sample was confirmed to contain formalin.
PHYTOPLANKTON (Skeletonema costatum) DENSITY ON LABORATORY SCALE USING DIFFERENT DOSES OF SILICATE FERTILIZER Ariyandani, Mita; Lisdayanti, Eka; Heriansyah, Heriansyah
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.v7i2.14595

Abstract

Silicate fertilizer is a micronutrient that is widely used by phytoplankton in its growth and development process. One type of microalgae that utilizes this nutrient is Skeletonema costatum. The growth of Skeletonema costatum is strongly influenced by the availability of nutrients, especially silicate, which functions in the formation of diatom cell walls. This research aims to determine the density level of Skeletonema costatum when applying silicate fertilizer at different doses on a laboratory scale. This research used an experimental method with four doses of silicate fertilizer, namely 3 ppm, 5ppm, 10ppm, 15ppm and 20ppm. The S. costatum culture was observed for 10 days under controlled laboratory conditions. The parameters observed were cell growth and density which were calculated every day using a hemocytometer. This research shows that applying silicate fertilizer at optimum doses can increase the growth of S. Costatum phytoplankton which is useful as natural food in aquaculture. The results of this study show that administration of silicate at a dose of 20 ppm was able to produce a cell density of 1.946.250 cells/ml. The growth of S. Costatum showed a significant increase in number, marked by the addition of 7-12 filaments. The most appropriate harvest time is in the exponential growth phase. Meanwhile, the results of measuring water quality parameters show values that are still within the optimal range for the growth of S. Costatum.
GROWTH OF Thalassiosira sp AND Chaetoceros sp. IN SCALE OF LABORATORY, INTERMEDIATE AND MASSAL Kurniaji, Ardana; Wahid, Eriyanti; Regan, Yip; Rasnijal, Muhammad; Normayanti, Novi
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.v7i2.15093

Abstract

The availability of high-quality live feeds, such as Thalassiosira sp. and Chaetoceros sp., is a critical factor for the success of shrimp aquaculture; however, it is often constrained by fluctuations in growth performance and cell density at different production scales. This study aimed to identify the growth of Thalassiosira sp. and Chaetoceros sp. at laboratory, intermediate, and mass scales. The research was conducted using an experimental method with a Completely Randomized Design (CRD) with two treatments and three replications. The treatments were different microalgae species cultured at different production scales and compared. Cell density data and growth phases were analyzed statistically using SPSS. The results showed that Chaetoceros sp. had higher growth compared to Thalassiosira sp. The cell density range of Chaetoceros sp. was 1.1×10⁷ - 5.0×10⁷ cells/mL, while Thalassiosira sp. was 1.7×10⁶ - 5.2×10⁶ cells/mL. The growth rate of Chaetoceros sp. also reached the peak of the exponential phase faster at Day of Culture (DOC) 4 compared to Thalassiosira sp., which peaked at DOC 5. Water quality during the study across all production scales showed an optimal range for the growth of both microalgae species.

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