bluuebunny/crossref_metadata_2025_split huggingface dataset:
Preliminary Analysis on Burnup Calculation of Several Arrangement of TRISO and Pebble inside an MCNP Model of HTR Core
Authors: Luthfi W , Suwoto  , Setiadipura T , Zuhair  
Published: November 2021

Abstract
Several studies related to simplifying the modeling of pebble bed High-Temperature Reactor core (HTR) has been developed before. From some calculation on several MCNP models with a fueled pebble to dummy ratio 57:43, using a combination of several types of TRISO (TRi-structural ISOtropic particle fuel) unit and Pebble unit is modeled to achieve its first criticality. In this paper, some MCNP model that uses 27000 pebbles with a 57:43 ratio and 100% fueled pebble is created to be used on burnup calculation and to compare its k-eff and nuclide inventory. From this burnup calculation, it could be seen that SC (Simple Cubic) TRISO unit has faster calculation time followed by the HCP (Hexagonal Close Packed) TRISO unit and then the FCC (Face-Centered Cubic) TRISO unit. The BCC (Body-Centered Cubic) pebble unit had some consistent deviation from another pebble unit, and it still needs more study to know more about the reason behind it. It could be seen that if there are some dummy pebbles inside the reactor, then the deviation would be higher than if there is just fueled pebble inside the reactor. On the 57:43 ratio, the absolute average deviation of k-eff on burnup calculation is lower than 2% and 10% for nuclide inventory (mass). On 100% fueled pebble, it’s below 0.15% on k-eff absolute deviation and below 8% on nuclide inventory deviation.
Hydrodynamical model during east season at Gosong Coastal West Borneo as candidate location of nuclear power plant in Indonesia
Authors: Prasetyo A T , Muslim  , Suseno H 
Published: November 2021

Abstract
Indonesia planned to build the first nuclear power plant in Gosong Coast, Bengkayang Regency, West Kalimantan. This research examined the hydrodynamical conditions in the ocean of Gosong Coast during the eastern season. This hydrodynamic model can be considered in estimating the distribution of various radionuclide wastes that release to the ocean. It was simulated using the Delft3D flow module application for 15 days which included the neap and spring tide conditions. Base on the result of the hydrodynamical model, Gosong Coast had a mixed semidiurnal type of tide with low amplitude. The wind parameters involved higher impacts to the hydrodynamical conditions. The model result did not find significant differences between neap and spring tide periods. There was a flow collision between 2 opposite water currents which was occurred at Burung Archipelagic during flood tide and at the Coastal area of Singkawang City during ebb tide. Therefore, the ocean currents at Gosong Coast flowed directly offshore through Burung Archipelagic during ebb tide. Meanwhile during flood tide, these ocean currents moved to Singkawang and Sambas Coastal area before they deflected toward offshore.
Increasing the quality of anchovy (Stelophorus sp.) with additional concentration of chitosan
Authors: Achmad M J , Taher W S , Djamhur M , Samman A 
Published: November 2021

AbstractAnchovy is a main capture fishery commodity in North Maluku. Currently, the processing activity of anchovy is relatively simple and traditional, consequently, causing anchovy quality to be easily degraded. One solution to overcome the problem is through the addition of chitosan concentration. This study aimed to determine effect of concentration addition of chitosan on quality of water content, protein, fat, carbohydrates, organoleptic and Total Plate Count (TPC) test. Method used in this research was the analysis of water quality test, protein content, fat content, carbohydrate content, calorie content, organoleptic test and TPC test. The study results showed that the highest water content value was 13.65% at 0.1% concentration, the highest protein value was 61.16% at 0.5% concentration, the highest ash content value was 16.5% at 1% concentration, the highest fat value was 3.99% at 1% concentration, and the highest fat value was 3.99% at 1% concentration. The highest carbohydrate content found was 11.94% at 0.1% concentration, and the highest calorific value was 2.51% at 1% concentration. Meanwhile, average organoleptic value of the highest appearance was 6.87% at a 0.3% concentration, the highest odor was 7.55% at a 0.3% concentration, the highest texture was 7.45% at a 0.1% concentration and color was 6.25% at a 0.3% concentration. Results of the TPC tests showed that anchovy with chitosan treatment and without chitosan during storage changed for all treatments. The average TPC value at all concentrations (0.1%, 0.3% and 0.5%) had the lowest TPC value compared to the control.
Free radical scavenging activity of five selected sea cucumbers collected from Lampung waters, Indonesia
Authors: Rasyid A. , Putra M Y , Yasman  
Published: November 2021

Abstract
Sea cucumber is an important raw material for food and remedy in the Eastern region. However, a study focusing on identifying the health benefit of sea cucumbers from tropical waters is still limited. A study on the free radical scavenging activity of five selected sea cucumbers collected from Lampung waters, Indonesia has been done. The objective of this study was to evaluate the free radical scavenging activity of five selected sea cucumbers, namely Stichopus vastus, Stichopus quadrifasciatus, Holothuria (Metriatyla) lessoni, Holothuria (Mertensiothuria) leucospilota, and Bohadschia marmorata. The extraction method which used in this study was the maceration method using methanol solvent while the free radical scavenging activity test is carried out using 2,2′-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) method. Compared to other species at a concentration of 250 µg/mL, S. vastus, S. quadrifasciatus, H. lessoni and H. leucospilota showed the strongest scavenging activity. While B. marmorata was classified as a very weak scavenging activity. It can be concluded that S. vastus, S. quadrifasciatus, H. lessoni H. leucospilota, and H. lessoni are important sea cucumbers from tropical waters as a source of natural antioxidant agents in the future.
Effect of addition of pro-enzymes and Spirulina flour on growth and color intensity of betta fish (Betta sp)
Authors: Fabanjo M A , Abdullah N 
Published: November 2021

Abstract
Betta fish is one of the ornamental fish that has high economic value because it has features such as the beauty of the body color, the uniqueness of the shape of the fins so that it is very attractive to ornamental fish lovers. Attractiveness value of ornamental fish can be measured from their brilliant color, shape and physical completeness, behavior, and health conditions. Color is one deciding factor that ornamental fish is in demand by consumers, so that farmers need to maintain the color of ornamental fish by providing food containing color pigments. The aim of this study was to obtain a mixture of effective doses of pro-enzyme Spirulina flour in feeding to increase growth and color intensity of betta fish. The results showed that the highest absolute weight growth was found in treatment B (5 grams) of pro-enzyme Spirulina flour 2.154 followed by treatment C 1.554 (7 grams), treatment A 0.844 (3 grams), and treatment D 0.002 (0 grams). The highest level of color change occurred in treatment A (dose of 3 grams) while the lowest color change rate was found at treatment D (0 grams).
Increasing growth and survival rate of tilapia larvae (Oreochromis niloticus) by adding polychaeta Nereis sp dry meal into feed formulation
Authors: Ahmad K , Yuliana  , Amin R , Syazili A , Surahman  
Published: November 2021

Abstract
Aquaculture has been known as one of solutions in dealing with food security problem through applying best practices of aquaculture and increasing fish production. In many countries, fish production is considered an essential activity contributing to household income and trade. However, fish feed has an expensive price, and it constitutes 60-70% total cost of production. The objective of this study is to reveal an alternative cheap source for additional ingredients to fish diet formulation of Tilapia larvae (Oreochromis niloticus). 240 fish larvae from local hatchery were used and cultured in 4 aquariums with different dose of protein diet (30%, 35%, 40%, and control). The source of protein diet is Polychaeta Nereis sp which was collected from surrounding Kastela Sea. Nereis sp was processed into dry meal and was added into the feed formulation. The result shows that the useful of 40% protein of Nereis sp gives the highest growth and survival rate of tilapia larvae, which is 44,99 g and 100%. It is followed by 35% and 30% Nereis protein, respectively. It is interesting that protein control which is feed commercial has almost similar growth level as the highest one. Specific growth rate (SGR) is 3,74%-3,79% per day for different protein dose of Polychaeta. Survival rate is 100% for all treatments which means all fish can survive and growth continuously from beginning to the end of the study.
Effects of different combination of culture medium on growth and nutrition content of black soldier fly larvae (Hermetia illuens)
Authors: Muchdar F , Andriani R , Juharni  , Wulansari A 
Published: November 2021

Abstract
Fish feed is the most essential necessity and the biggest contributor on production cost of fish cultivation. As much as 50-70% production cost is for fish feed. It can be deducted by made alternative fish feed. Black soldier fly larvae is an alternative fish feed with high protein content and most importantly it is cheap. The aim of this research was to evaluate the growth and nutrition content of black soldier fly larvae which cultivated in different medium. Medium used in this study was combination of coconut pulp residue and three other different medium, such as tofu dregs, sago dregs, and rice bran. Each combination had three different level of concentration, 1:1, 1:3, 1:5 (w:w). It was evaluated for nutrition content (proximate analysis), biomass, and dried yield. The result showed combination of coconut pulp and sago dregs 1:5 produced the highest biomass (465 g), but black soldier fly larvae produced from combination of coconut pulp residue and tofu dregs 1:3 had the highest protein content (39.78%). The best medium to produce black soldier fly larvae based on multiple attribute decision making (MADM) method was from the combination of coconut pulp residue and sago dregs 1:5 (w:w). It had 465 g biomass, 186 g dried yield, 23.73% protein, 47.67% fat, and 22.15% carbohydrate.
Maintenance and spawning on yellowfin tuna broodstock reared in floating net cage
Authors: Tridjoko  , Hutapea J H , Setiadi A , Gunawan  , Selamet B 
Published: November 2021

Abstract
Yellowfin tuna (Thunnus albacares) is one of the fish species that have important economic value which is expected to become one of foreign exchange that can give solution to national economy. Hatchery technology of yellowfin tuna performed at the Research Institute for Mariculture and Fisheries Extension Gondol has been successfully spawned. However, the quality and quantity of eggs produced is still not optimal. The purpose of this study was to determine the performance of spawning on yellowfin tuna broodstock reared in floating net. This research was conducted in cage with a diameter of 48.8 m with a depth of 8 m, filled 90 fishes yellow fin tuna with weights ranging between 50-70 kg per fish. Feed given is: fresh fish, squid and added vitamin C and vitamin E. The study was conducted for 11 months from January to November 2017.The results showed that the yellowfin tuna could spawn monthly. The highest spawning frequency occurred in July at 17 times. The highest total number of eggs harvested was 8,740,350 in October. Hatching rate between 50-92%. Survival activity index (SAI) is 1.8-3.5%. Survival rate of yellow fin tuna during maintenance reached 92.2%.
Identification and determination of growth hormones of Kappaphycus alvarezii cultivated in Ekas Bay East Lombok
Authors: Cokrowati N , Risjani Y , Andayani S , Firdaus M , Honiar R 
Published: November 2021

Abstract
The extract of red marine algae contained growth-enhancing properties which is associated to age and their morphotypes. Kappaphycus alvarezii cultured in Ekas Bay, Lombok, Indonesia was studied and aimed to determine the content of growth-promoting substances in the young and old thallus of brown and green morphotypes of K. alvarezii. The content of K. alvarezii thallus growth substances was determined by High Performance Liquid Chromatography (HPLC). This study showed that the old thallus in the brown K. alvarezii strain contained auxin 8.43 ppm and the young thallus 2.89 ppm, while the old thallus in the green strain K. alvarezii contained auxin 10.92 ppm and the young thallus contained 16.28 ppm. This study concluded that auxin was the only growth promoter detected in K. alvarezii seeds in both young and old thallus in green and brown morphotypes.
Length distribution, gonad maturity level, and catchable size of fish caught around FADs in Ternate Sea
Authors: Kadir I A , Taeran I , Harahap Z A 
Published: November 2021

Abstract
Pelagic fishery business in Ternate Sea are mainly based on FADs fishing operations. Increase of intensive fishing activities will also increase the pressures on local pelagic fish resources of Ternate Sea in the future. So far, there has been limited scientific information related to the fish caught by local fishers. The aim of the study was to investigate length distribution, gonad maturity level (GML), and catchable size of fishes caught around FADs. The research was conducted in August 2020 in Ternate. The research method was a survey research by collecting samples of fish caught from gill nets and hand lines for total 30 fishing trips. The study results showed that the catch consisted of mackerel scads and yellow scads. The mackerel scads caught by gill nets were between 13-26 cm in size and dominated by the 19-20 cm size class, while fishes sizes caught by hand line were between 14-27 cm which were dominated by the 18-19 cm size class. Yellow scads caught with both gill nets and handlines showed the same length range of 12-23 cm, which was dominated by the size class of 18-19 cm. Mackerel scads caught with gill nets and handlines were dominated by fish in GML II (47%) followed by GML III (32%). GML of yellow scads caught with gill nets was dominated by GML III by 75%, while for fishes caught by hand line the percentage of GML III is 68%. The mackerel scads caught with gill nets and handlines were dominated by the non-catchable size category (100% for gill nets and 98.79% for handlines). On the other hand, all yellow scads caught with both gill nets and handlines are entirely (100%) of catchable size.
Potentials of CaO powder result of calcination from green shells (Perna viridis), scallops (Placuna placenta), and blood clams (Anadara granosa) as antibacterial agent
Authors: Mediarman G N , Sumardianto  , Riyadi P H , Rianingsih L , Purnamayati L 
Published: November 2021

AbstractCalcium oxide (CaO) can be formed from the calcination process of calcium carbonate or CaCO3. One of the ingredients that contain quite a lot of CaCO3compounds is clam shells. Shellfish shells can be an alternative for making natural antibacterials. Calcination was carried out at 1000°C for 6 hours. The bacteria tested wereStaphylococcus aureusandEscherichia coliwhich are pathogenic bacteria. The concentration of each CaO powder is 3.5% with a size of 150 mesh. The purpose of this study was to determine the antibacterial effect of CaO from three different shells, namely blood clams, green clams and scallops and to determine the third antibacterial effect of mussels. The research method used was a completely randomized design (CRD) with one factor influencing the antibacterial activity of CaO three times. Parametric data were analysed using ANOVA and Honest Significant Difference (HSD). The research treatment was the use of three different shells, namely blood, scallops and green mussels with tetracycline as control. Parameters observed were pH, calcium, chemical composition, and activity. The pH value of CaO powder has an average of 12.47. The levels of CaO produced were 99.43% in blood clams, 99.62% in green mussels and 98.4% in scallops. The diameter of the inhibition zone ofStaphylococcus aureusbacteria for each clam shell was 15.22 ± 0.66 mm, green mussel 13.7 ± 0.26 mm and scallop 14.9 ± 0.25 mm. The diameter of the inhibition zone ofEscherichia colibacteria produced was 12.2 ± 0.36 mm blood clams, 12.5 ± 0.3 mm green mussels and 13.7 ± 0.2 mm scallops.
Growth patterns of skipjack tuna (Katsuwonus pelamis, linnaeus 1758) caught by troll line in Prigi waters, Trenggalek East Java Indonesia
Authors: Bintoro G , Lelono T D , Setyohadi D , Fadzilla U 
Published: November 2021

Abstract
Skipjack tuna (Katsuwonus pelamis) is an important pelagic fish species caught in tropical and subtropical waters of the Pacific, Atlantic, and Indian oceans. Skipjack tuna (K. pelamis) is also a high economic fisheries resource in Prigi waters which is caught by troll line. High market demand results in high levels of exploitation. This study aimed to identify the length-weight relationship and biological reproduction of skipjack tuna in the Prigi waters. The research was conducted in the sampling period between December 2019 - April 2020 with total samples obtained as much as 1642 fish and was analyzed using linear regression. The results informed that the length-weight relationship of skipjack tuna was positive allometric with equation W=0.007FL3.223 which means that the fish has a fat body. The sex ratio between male and female fish is 1:1. While gonad maturity level obtained in this study is mostly in GML 1 and GML 2 which indicates that the catches were dominated by immature fish, so it is necessary to limit fishing effort so that sustainability of the skipjack tuna (K. pelamis) resource can be managed.
The effect of sucrose addition on the sensory quality of “terasi” an Indonesian shrimp paste
Authors: Rianingsih L , Sumardianto  , Romadhon  , Rusdi M B , Riyadi P H 
Published: November 2021

Abstract
Terasi is a fermented product made from shrimp or fish with or without salt. In general shrimp paste producers only add high salt concentration to preserve the raw materials and to ensure successfully fermentation process. However there are shrimp paste producers in the Pati, Central Java, Indonesia that use sucrose sugar as a source of carbohydrate in the shrimp paste production. Sugar will affect the reactions that occur during the shrimp paste production process and will ultimately affect the characteristics of the product. This study aims was to determine whether there is an effect of adding sucrose sugar to the flavor and sensory characteristics of the shrimp paste. The Result showed that the addition of sugar did not affect the aw and TPC BAL value, but it decreased the TVBN value, soften the texture value and in addition the sensory was more prefered by the panelist. The characteristic of shrimp paste with sugar addition was low aw value 0.631 ± 0.631, TPC BAL was not detected, TVBN value 115.641 ± 9.940 mgN/(100 gr) and sensory 7.872 < µ < 8.328. The use of sucrose can be recommended to be added during shrimp paste production to increase consumer preference.
Evaluation of good manufacturing practices (GMPs) in traditional fish cracker home industries in Pangkahkulon-Gresik, East Java, Indonesia
Authors: Fuad M A Z , Iranawati F , Kartikaningsih H 
Published: November 2021

Abstract
Fish crackers are one of the very popular snacks in Indonesia. The production processed of this snack, which starts from handling of raw materials to packaging, must be in accordance with food safety that has been determined by the government through the Food and Drug Supervisory Agency. This study aims to evaluate the implementation of Good Manufacturing Practices (GMPs) in 5 fish cracker home industries in Pangkahkulon Village, Ujungpangkah, Gresik District. The evaluation method used is based on the Indonesia Minister of Industry Regulation No.75/M-Ind/Per/7/2010 and regulation of the head of BPOM No. HK03.1.23.04.12.2200 of 2012, both was concerning the procedures for Inspection of Home Industry Food Production Facilities. The results indicate that the home industry has not implemented GMPs in accordance with BPOM regulations so that the five SMEs can be categorized at the lowest level (level IV). Some critical findings include the absence of closed waste bins, animals and pets that roam around the production site, do not have a record of the production process and do not have a label that shows the list of ingredients used along with the nutritional value available.
Mortality and exploitation rate of some reef fish in Ternate Island Waters
Authors: Rumagia F , Kaidati B , Darmawaty  , Nisaa K 
Published: November 2021

Abstract
Fish population dynamics are determined by the balance between population increase resulted from growth and addition of new individuals (recruitment), and population decrease due to fishing mortality and natural mortality. It is important to understand fish resources condition, including their change pattern caused by pressures on coral reef fisheries resource in coastal area of Ternate Island. This research aimed to analyze mortality and exploitation rate of several reef fishes that caught at coastal area of Ternate Island. Stock assessment method was used to determine the mortality and exploitation rate of some reef fishes. Study results showed that the fishing mortality of the sample species was lower than their natural mortality, while the exploitation rate results also showed the same condition those found in mortality rate, where the fish with high growth coefficient tended to have high mortality rates.
Sepat Siam fish community (Trichopodus pectoralis Regan, 1910) in Semayang Lake, East Kalimantan
Authors: Samuel  , Dwirastina M , Ditya Y C 
Published: November 2021

Abstract
Siam sepat (Trichopodus pectoralis) is a fish that lives with the characteristics of its life in mainland public waters such as rivers, lakes and flooded swamps. The Siam sepat is classified as a consumption fish, has morphological characteristics with a small mouth with a pointed snout and a flat body shape. The research was conducted from March to October 2018 in Semayang Lake, East Kalimantan. Fish samples obtained from fishermen’s catch using fishing gear, including nets, nets, tangkul, scoops and traps. This study used an enumerator to record the length and weight of the fish. The results of the research analysis showed that the size of the individuals who dominate the Siam sepat fish population is at the size of 14.0-17.0 cm (60.8%), the allometric growth pattern (-) with the equation W = 0.0393 * L2.6409. The size of the first caught (Lc) of the Siam Sepat fish was 17.31 cm, the maximum average length (L∞) was 22.75 cm and the growth coefficient (K) was 0.78 per year. Natural mortality (M) and fishing mortality (F) were 1.64 and 2.64 per year, respectively. Thus the rate of exploitation (E) = 0.62 has exceeded the optimum value indicating that the fishing effort of Siamese septic fish in Lake Semayang has occurred overfishing.