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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 17 Documents
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Search results for , issue "Vol 6, No 2 (2024): October" : 17 Documents clear
ANTIBACTERIAL ACTIVITY OF HYDROXYAPATITE FROM FRESHWATER MUSSEL SHELL (Pilsbryochoncha sp.) AGAINST Streptococcus mutants BACTERIA Sidauruk, Santhy Wisuda; Rusdi, Rizky Ramadhan; Sari, N. Ira
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.v6i2.13519

Abstract

Unutilized mussel shells have the potential to become solid waste and potentially pollute the environment. In fact, the shell has a high calcium content of 61.39% which can be used as a precursor to hydroxyapatite. Hydroxyapatite is known to have antibacterial activity that causes dental caries, namely Streptococcus mutants. However, the antibacterial activity of HAp from mussel shells against S. mutans bacteria is not yet known. This study aims to determine the Minimum Inhibitory Concentration (MIC), Minimum Bactericidal Concentration (MBC) and determine the inhibition zone against S. mutants bacteria from hydroxyapatite of mussel shells. This research procedure started from hydroxyapatite synthesis, MIC test, MBC test, and inhibition zone analysis at several HAp concentrations, namely 12.5 mg/mL, 25 mg/mL, and 50 mg/mL, as well as positive control and negative control. The results showed that no KHM and KBM values were found at the HAp concentrations used. Furthermore, the diameter of the hydroxyapatite inhibition zone against S. mutants bacteria at concentrations of 12.5 mg/mL, 25 mg/mL, and 50 mg/mL, was 0 mm. Thus, the hydroxyapatite of mussel shells is neither bacteriostatic nor bacteriocidal.
EFFECT IMPACT OF 17α-METHYLTESTOSTERONE ON GROWTH PERFORMANCE AND FEED CONVERSION RATIO IN OF TILAPIA (Oreochromis niloticus) Suseno, Dewi Nurmalita; Hakimah, Nisa; Rianto, Budi; Setyastuti, Tri Ari; Pamaharyani, Luchiandini Ika
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.v6i2.14131

Abstract

Male tilapia fish grow faster than female tilapia, so administering synthetic steroids orally or by soaking has proven to be the simplest, easiest, most effective and reliable technology for sex reversal of tilapia larvae to become males. This research was conducted to analyze the administration of 17α- methyltestosterone on the growth rate and feed conversion of tilapia (O.niloticus). This study used a completely randomized design (CRD) consisting of 3 treatments and 4 replications. The optimum dose used is (60) mg/kg feed, and 0.5 ml/l. The results of this study showed that body weight gain with oral treatment had the best average, namely 226.83c ± 11.88; average length 12.79b ± 0.99, specific growth rate (SGR) 5.46c ± 0.06 and FCR namely 1.05a ± 0.06. Research on the effect of using 17α-methyltestosterone on the growth of oral male tilapia fish obtained the best results by not exceeding the residue limit (5 µg/L or 5 µg/kg) of synthetic steroids in the body of tilapia fish. 
MAPPING CRITICAL MANGROVE LAND USING GEOGRAPHIC INFORMATION SYSTEM TECHNOLOGY IN THE MANDEH AREA - SOUTH PESIR DISTRICT Pasaribu, Roberto Patar; Pranoto, Aris Kabul; Djari, Anthon Anthonny; -, Amelia Fitrina
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.v6i2.14030

Abstract

The mangrove ecosystem is an ecosystem that has high biodiversity. The mangrove ecosystem has physical functions, including protecting the coast from abrasion and erosion. This ecosystem also functions as a place for spawning, breeding and rearing for various marine organisms. This research aims to determine critical mangrove land using Geographic Information System Technology (GIS) applications and remote sensing techniques as an alternative method for mapping the condition of critical land in the mangrove ecosystem. The research location is in the Mandeh area, Koto XI Tarusan District in Pesisir Selatan Regency, West Sumatra Province. Based on data processing and analysis as well as on-site observations, the critical level of mangrove forests in the Mandeh area is not damaged 119,065 Ha (46.41%), damaged 105,325 Ha (41.05%) and very damaged 32,164 Ha (12.54%).The village areas that were damaged were in Sungai Nyalo Village, while those that were not damaged were in Teluk Raya Village.
ALYSIS OF MICROBIAL CONTAMINATION IN RED SNAPPER (Lutjanus sp.) AS EXPORT COMMODITY IN TARAKAN CITY Samsidar, Samsidar; Nasrudin, Abdul Rohman; Megawati, Megawati; Pamaharyani, Luchiandini Ika
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.v6i2.15009

Abstract

Red snapper (Lutjanus sp.) is one of the most popular fish species because of its delicious taste with thick and dense meat and high nutritional content such as protein, omega 3 fatty acids, vitamins, and minerals known to be very productive for heart health, brain, bones, and endurance. Red snapper (Lutjanus sp.) as a fishery product is perishable and requires good handling to maintain the quality standards of the fish. Fish quality is an important requirement in the export process based on predetermined standards to prevent biological, chemical, and physical hazards. One of the fish quality testing processes carried out is microbiological testing by looking at the Total Plate Number (ALT) of bacteria. The calculation is carried out based on the SNI 2332:2015 (How to tet microbiology-part 3: Determination of total plate count). Testing was carried out in the laboratory of the Fish Quarantine Centre, Quality Control and Safety of Fishery Products (BKIPM) in Tarakan City. The results showed that the tested red snapper samples contained 3,3 x 103 colonies/g and were still below the maximum limit of 5x105 colonies/g. Red snapper (Lutjanus sp.) in Tarakan City is considered safe and suitable for export in accordance with SNI fresh fish quality requirements in SNI 2729: 2021 and SNI 7388:2009 on the maximum limit of microbial contamination in food.
ANALYSIS OF THE EFFECTIVENESS OF THE POWER GENERATOR ON THE FISHING VESSEL KM. BINAMA 03 USING THE OVERALL EQUIPMENT EFFECTIVENESS (OEE) APPROACH Demeianto, Bobby; Abrori, M. Zaki Latif; Rusdianovi Caniago, Renaldi; Preston Siahaan, Juniawan; Tumpu, Mula
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.v6i2.15039

Abstract

Although many studies have been conducted on the effectiveness of a generator or machine using the OEE (Overall Equipment Effectiveness) method, research focusing on the effectiveness of electrical generators on fishing vessels has been limited. This study aims not only to measure the effectiveness of the KM. Binama 03 generator but also to provide data-driven recommendations to enhance equipment reliability in the future. The study's results showed that the average values of Availability, Performance Efficiency, Rate of Quality, and Overall Equipment Effectiveness for the KM. Binama 03 generator in February, March, and July were 97.76%, 81.36%, 79.50%, and 63.49%, respectively. These figures indicate that the OEE values of the KM. Binama 03 generator during operations in these months were still below the JIPM (Japan Institute of Plant Maintenance) minimum standard of 85%. The findings of this research are expected to provide valuable insights for maximizing the effectiveness of equipment or machinery, as the primary goal of Total Productive Maintenance (TPM) is to ensure that machines remain in optimal condition without disrupting daily activities. This can only be achieved through preventive and predictive maintenance of the equipment.
IDENTIFICATION OF BACTERIUM Escherichia coli IN PELAGIC AND DEMERSAL FISH BY CULTURE AND POLYMERASE CHAIN REACTION (PCR) METHODS Farida, Iftachul; Dewi, Ni Putu Kumala
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.v6i2.13717

Abstract

Fish is a commodity that easily and quickly decomposes (high perishable food), therefore, since being caught from the sea, it requires fast, clean, careful and cool handling so that when it is distributed or marketed to fish consumers in fresh condition and maintained quality. The large number of pelagic fish and demersal fish exported to foreign countries requires that the exported fish be tested for its content, especially for microbial contamination, one of which is Escherichia coli contamination. The purpose of this study was to identify Escherichia coli bacteria in Pelagic and Demersal fish using culture and Polymerase Chain Reaction (PCR) methods. Identification of E. coli bacteria used two methods, namely the culture method and PCR using the lacZ gene primer. The results showed that the use of culture and PCR testing methods in identifying E. coli bacteria in demersal and pelagic fish showed the same results, namely 7 (47%) positive samples containing E. coli contamination with the same sample code and exceeding the limit for bacterial E contamination. coli according to SNI 2729:2013 regarding fresh fish, namely <3 APM/g.
PLANKTON ABUNDANCE AND WATER QUALITY PROFILE OF VANNAMEI SHRIMP (Litopenaeus vannamei) FARMING INTENSIVE SYSTEM Suprakto, Bambang; Bintari, Yunia Karisma; Aulia, Deni; Rizky, Putri Nurhanida; Wartini, Sri
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.v6i2.14545

Abstract

The vannamei shrimp (Litopenaeus vannamei) is one of the most popular shrimp species, widely cultivated throughout Indonesia. This species has several advantages, including rapid growth, the ability to be cultivated at high densities in intensive systems, and resilience to environmental changes. The presence of plankton and the quality of water in the cultivation medium significantly affect the growth and survival of vannamei shrimp. This study aims to evaluate plankton abundance and the dynamics of water quality in intensive vannamei shrimp farming. The research was conducted at two intensive vannamei shrimp farms in East Java with shrimp aged between 1 and 60 days. Water quality measurements were taken directly from the cultivation ponds (salinity, pH, and dissolved oxygen) and in the laboratory (ammonia, nitrite, phosphate, alkalinity, and total organic content). The average abundance of plankton in the intensive vannamei shrimp farming medium ranged from 190 x 10³ to 960 x 10³ individuals/mL, consisting of four groups: green algae, diatoms, dinoflagellates, and blue-green algae. Green algae were the most abundant group, making up 69.9% to 71.9%, while diatoms were the least abundant at 1.9% to 3.0%. In intensive vannamei shrimp farming, the salinity of the cultivation medium ranged from 16 to 35 ppt, pH from 7.5 to 9.0, dissolved oxygen from 3.2 to 5.7 mg/L, and temperature from 28.0 to 31.3°C. The water chemistry parameters measured were ammonia, nitrite, phosphate, alkalinity, and total organic content, with respective ranges of 0.001–0.030 mg/L, 0.05–1.00 mg/L, 0.25–3.00 mg/L, 104–232 mg/L, and 27–131 mg/L. The dynamics of water quality remained within the optimal range for vannamei shrimp farming, as outlined in Regulation KP Number 75 of 2016 regarding general guidelines for the rearing of tiger shrimp and vannamei shrimp.

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