bluuebunny/crossref_metadata_2025_split huggingface dataset:
Implementation of Indonesia coal downstream policy in the trend of fossil energy transition
Authors: Yasin C M , Yunianto B , Sugiarti S , Hudaya G K 
Published: December 2021

AbstractThe implementation of downstream coal policies in Indonesia is regulated in Law Number 3 of 2020 to optimize coal’s domestic use and value-added. The policy is also supported by the issuance of fiscal, non-fiscal, and regional incentives. In Law Number 3 of 2020, the government of Indonesia states six types of coal downstream: coal upgrading; coal briquetting; cokes making; coal liquefaction; coal gasification; and coal slurry, yet the government has not defined which downstream coal products should be prioritized. Several parameters must be considered in implementing the downstream coal policy, those are the availability of coal and its characteristics, proven technology, economic and environmental feasibility. This study examines the mineral and coal sector regulation, taxation, coal resources and reserves, technology, and economics. In addition, to implement the commitment of reducing CO2 emissions, this study also considers applying Carbon Capture and Storage (CCS) or Carbon Capture, Utilization, and Storage (CCUS) technology to implement downstream coal policy.
Expanded perlite commercialization techno-economic analysis in Indonesia
Authors: Suherman I , Wahyudi A , Mamby H E , Darmawan D A 
Published: December 2021

Abstract
Utilizing a perlite processing plant in Lampung is one of the public services of the Research and Development Center for Mineral and Coal Technology (TEKMIRA). The plant has been fully revitalized and is ready to be developed for commercialization through joint operations. The domestic market for perlite is not as advanced as the world market. These are both opportunities and challenges for the expanded perlite business. Techno-economic analysis can provide an overview of expanded perlite processing and cash flow forecasts during the implementation period of the commercialization project. Based on the financial feasibility indicators, the scenario of the expanded perlite project is feasible to be commercialized. In the proportional scenario, TEKMIRA and business partners will get 70% versus 30%. The alternative scenario of profit-sharing structure is 50% versus 50%. Nevertheless, TEKMIRA still benefits from fixed compensation. These results are expected to attract investors to partner in the commercial business of expanded perlite processing.
Andesite prospect at West Sungkai of North Lampung: Its distribution based on electrical resistivity tomography
Authors: Antosia R. M. , Mustika  , Putri I. A. , Rasimeng S. , Dinata O. 
Published: December 2021

Abstract
Infrastructure construction made andesite’s demand has increased, particularly in Lampung Province. In this research, its distribution in West Sungkai of North Lampung is mapped based on Electrical Resistivity Tomography (ERT) data from 6 lines, each of them was 186 m in length. Due to its excellent vertical resolution, Wenner configuration is performed. The research area is part of Quarter Holocene Volcanic (Qhv) formation. Lajur Barisan members consist of volcanic breccia, lava, and andesite-basalt tuff; thus, resistivity modeling is built within this aisle. Subsurface resistivity model has been created using the non-linear inversion method with promising low error at the third to fifth iterations, which marks an acceptable value. Using 2D and 3D ERT modeling, it is estimated that there are three mains of rocks based on their resistivity value: sandy tuff with 65 – 212 Ω m; tuff with 212 – 655 Ω m; and andesite with resistivity more than 655 Ω m. Andesite within this area is likely lava andesite which spread from the middle to the West and north. It is located at 5 – 35 m in depths with the reserve estimation of andesite is about 1.65 million tons.
Growth Performance and Survival Rate of Catfish (Pangasius sp) with the Application of the Nitrifying and Denitrifying Bacteria
Authors: Yosmaniar Y , Sumiati T , Mulyasari M 
Published: December 2021

Abstract
Nitrifying and denitrifying bacteria can be used as a bioremediation agents in aquaculture. The purpose of this experiment is to evaluate the optimal growth and survival performances of catfish rearing with the application of nitrifying and denitrifying bacteria. A completely randomized design was performed with the following treatments: A) nitrifying and denitrifying bacteria NP2-DP1; B) nitrifying and denitrifying bacteria NP2-DP2; C) commercial bacteria and D) without bacterial isolate (control), each with 3 replications. Twelve containers (34 x 34 x 45 cm) were used with a volume of 20 L equipped with aeration. The catfish used (Pangasius sp) has a body weight of 8.33 g ± 0.1 and stocking density of 20 fish / container reared within 30 days. Feed was applied to the fish at 3% of their body weight for three times a day at 08.00 am, 12.00 and 15.00 pm . . Inoculation of bacteria on day 10th and; 20th, that is 108 cfu / mL. The parameters measured were growth rate, survival rate, and water quality. Sampling was carried out every 10 days. The results showed that the application of NP2 and DP1 was the optimal to increase the growth and survival of catfish.
The Effectiveness of Turmeric Enriched Pellets in Curing the Gill of Clarias batrachus Infected with Aeromonas hydrophila
Authors: Riauwaty M , Windarti  
Published: December 2021

Abstract
Curcumin is an antibiotic agent extracted from Curcuma longa. To understand the effectiveness of curcumin in curing the gill of Clarias batrachus infected with Aeromonas hydrophila, a study was conducted from August to November 2020. There were 3 treatments applied, namely turmeric enriched pellets 0.7g/kg (P1); 0.9g/kg (P2) and 1.1g/kg (P3). Prior to the treatment, the fish was infected with A. hydrophila (0.1 m of A. hydrophila culture, 1.0x108cells/ml). The infected fish was kept for 6 days until the clinical signs of MAS disease occurred. By the 7th day, the fish was feed with turmeric enriched pellets. For negative control (Cn) the fish was not infected with A. hydrophila nor treated with turmeric, while the positive control (Cp) was infected, but no turmeric treatment. The fish was reared for 30 days and by the end of the experiment, the gill was removed and processed for histological study (5L sliced and HE stained). Result indicated that the gill of the negative control fish was normal, while that of the positive control shown abnormalities such as hemorrhages, necrotic cells, fused lamellae and enlarged cartilaginous cells. The turmeric treated fish shown less damage in the gill. The best results were obtained in C3, as the gill structure was almost normal with slightly hemorrhage. In the C1 and C2 treated fishes, the gill shown light abnormality such as fused lamella and hemorrhage. Data obtained shown that the consumption of turmeric enriched pellet was effective to cure the A. hydrophyla infected gill.
Distribution of Chlorophyll in Coastal Borneo Island Using Modis Terra Satellite Data
Authors: Yunita N F , Usman M , Merdekawati D 
Published: December 2021

Abstract
Clorophyll is the colour pigment most common found in phytoplankton. Its concentration is one of the indicator of the high of productivity of aquatic area, especially in coastal area. Information of chlorophyll concentration and distribution is very important to determine the suitable location of marine aquaculture and prediction of fishing ground. The aims of this research were to: 1) find out and analyze the concentration of chlorophyll and its distribution in Borneo Island Indonesia and 2) the pattern of chlorophyll distribution for each provinces using modis terra data for five years (from January 2016 to December 2020) in monthly and annually data series. In addition, it used Seadas 7.5.3 for data visualization. The result of this research showed that the chlorophyll concentration ranged 0,045 – 20 mg/m3 and clorophyll distribution affected by the location that seen in all variation data series. In annually time series data, the highest value of concentration shown by west borneo province and central borneo province with the distribution area were larger as well. The distribution of chlorophyll in monthly data showed almost same with annually data time series. The difference was just in large area distribution. The pattern of chlorophyll distribution also showed that in the west Kalimantan and central Kalimantan area had the highest values.
Suitability of Seaweed Culture (Eucheuma cottonii) in the Sorkam Barat Sub-District, Tapanuli Tengah Indonesia
Authors: Manurung D F , Rosmasita R , Windarti W , Ghazali T M , Sibuea N U S 
Published: December 2021

Abstract
Coastal and coral reef ecosystem areas in the Sorkam Barat Tapanuli Tengah may be potential sites for seaweed culture. To understand the suitability of that area for planting the seaweed, an initial study was conducted using a Geographic Information System (GIS). The environmental conditions as well as water quality parameters were analysed. The physical and chemical oceanographic factors parameters measured were wave height, temperature, salinity, depth, tide, brightness, pH, current velocity, and dissolved oxygen. While the water quality parameters measured were Total Suspended Solid (TSS), nitrate (NO3) and phosphate (PO4). Results shown that the water quality of the Sorkam Barat could be categorized as appropriate and quite suitable for the cultivation of Eucheuma cottonii. The suitable area for culture was 3,625.96 ha (92.5%) and the not suitable area was 294.18 ha (7.5%). The recommended planting method is the long-line system path method.
Effects of GnRH and Anti-Dopamine on Gonad Maturation of Osteochilus melanopleurus (Bleeker, 1852)
Authors: Asiah N , Aryani N , Nuraini N , Lukistyowaty I , Harjoyudanto Y 
Published: December 2021

Abstract
The Osteochilus melanopleurus (Bleeker, 1852) is one of the endogenous fish in the Siak River waters of Riau province which has high economic value. However, the fulfillment of needs still depends on the catch in nature. Efforts to overcome these problems are the availability of mature gonads. Broadly to accelerate the maturation of gonads through hormone induction until the fish are ready to be spawned to produce fish fry continuously. The purpose of this study was to analyze the effect of gonadotropin and anti-dopamine hormone induction with the trademark “Oodev” on the final gonad maturity (TKG) of the prospective broodstock of O. melanopleurus. The research was conducted from April to August 2021 in the fish rearing column and the experimental pond, Faculty of Fisheries and Marine Science. The research method was a Completely Randomized Design with 4 treatment levels and 3 replications, while the treatments were P0 (without Oodev injection), P1 (Oodev dose 0.5 mL/kg), P2 (0.7 mL/kg), and P3 (0,9 mL/kg). Measured responses: percentage of broodstock that reached TKG and egg diameter. The results of the research that have been carried out, the measurement of the diameter of the eggs produced showed that the use of the Oodev hormone at a dose of 0.7 mL/kg body weight of O.melanopleurus given every week for twelve weeks was able to stimulate the development of the gonads of O.melanopleurus. Ovaprim injection of 0.7 mL/kg body weight produced 89,566 eggs with a latency of 4 hours. oodev injection dose of 0.7 ml/kg BW or P2 treatment has succeeded in achieving a TKG of 82%.
Study of Growth and Survival of Mud Crab (Scylla serrata, Forskal) with Different Salinity Levels in culture media
Authors: Eddiwan  , Dahril T , Adriman  , Budijono  , Efawani  , Harjoyudanto Y 
Published: December 2021

AbstractThe aim of this study to find out the optimal level of salinity for the growth and survival of the mud crab (Scylla serrata). The weight of crab seeds were about 47.65-51.32 grams and the carapace length ranged from 64.35-71.30 mm, then put into 12 tanks (1 m x 1 m x 0.4 m) with a density of 4 crab seed per tank. During the maintenance of this test, mangrove crab was fed with fresh chicken intestines as much as 10% of its body weight per day. Water changes are carried out more than 150% per week. At the beginning of the experiment, each tank was conditioned to the same water salinity in all experimental units, namely 33 ppt. To see the effect of differences in salinity levels on the growth and survival of mud crabs, 4 treatments were made consisting of (A) 33 ppt salt content, (B) 31 ppt salt content, (C). The salt content is 29 ppt, and (D) the salt content is 27 ppt. From the results of this experiment, it is known that a decrease in the salt content of 4 ppt is the best treatment for the growth of mud crabs, but has no effect on the survival value.
Comparison of Exponential Smoothing Methods for Forecasting Marine Fish Production in Pekalongan Waters, Central Java
Authors: Pamungkas A , Puspasari R , Nurfiarini A , Zulkarnain R , Waryanto W 
Published: December 2021

Abstract
Pekalongan waters, a part of the Java Sea, has potency to develop marine fisheries sector to increase regional income and community livelihoods. The fluctuation of marine fish production every year requires serious attention in planning and policy strategies for the utilization of the fishery resources. Time series fish production data can be used to predict fish production in the following years through the forecasting process. The data used in this study is fish production data from Pekalongan Fishing Port, Central Java, from January 2011 to December 2020. The method used is data exponential smoothing by comparing three exponential smoothing methods consisting of single/simple exponential smoothing, double exponential smoothing and Holt-Winters’ exponential smoothing. The criterion that used to measure the forecasting performance is the mean absolute percentage error (MAPE) value. The smaller MAPE value shows the better the forecasting result. The smallest MAPE value is obtained by finding the optimal smoothing constant value which is usually calculated using the trial and error method. However, in this study, the constant value was calculated using the add-in solver approach in Microsoft Excel. The forecasting results obtained show that forecasting using the Holt Winter Exponential Smoothing method is reasonable with a MAPE value of 37.878.
Characteristics and Added Value of Fortified Sago Analog Rice Enriched with Nutritious Fish Oil Supplement
Authors: Syahrul S , Dewita D , Sidauruk S W 
Published: December 2021

Abstract
Analog rice is a food product resembling rice made from starch sources other than rice, such as starch from tubers (taro), corn and sago. The advantage of analog rice is that it has a lower glycemic index than rice. This analog rice product can help efforts to diversify the food consumption patterns of people in Indonesia in order to improve the nutritional quality of the food consumed and at the same time considering that analog rice is currently rich in carbohydrates and poor in other nutrients such as protein, fat and fiber, the product needs to be fortified with functional components of food. Functional components of food are foods that contain bioactive components that provide multifunctional physiological effects for the body, including strengthening the body’s immune system, regulating the rhythm of physical conditions, slowing aging, and improving people’s nutritional status and reducing dependence on imported rice. For this reason, alternative food is needed, namely analog rice with high nutritional content. This study aims to analyze the characteristics and added value of processing sago analog rice fortified with high nutritional fish oil supplements as a superior product in the Riau region, because Riau is one of the highest sago producing regions nationally. The research method used is an experimental method, which is to experiment with making sago analog rice fortified with nutrient-rich fish oil supplements from previous research. The treatment given was in the form of analog rice formulation with two levels, namely: sago analog rice fortified with 3% fish oil (M3S), and sago analog rice fortified with 5% fish oil (M5S). Data obtained were homogenized, then tabulated and analyzed quantitatively descriptively. The results showed that based on organoleptic preference test, and proximate composition, sago analog rice (M5S) was the best analog rice, namely sago analog rice fortified with 5% fish oil and met SNI quality standards. Furthermore, the added value produced to produce sago analog rice is IDR 3,000/kg and analog rice mixed with sago and taro is IDR 11,000/kg.
Isolation of Metallothionein (MT) Gene from Phytoremediation Agent, Eleusine indica
Authors: Mardalisa M , Batubara U M 
Published: December 2021

Abstract
Belulang grass (Eleusine indica) is a plant in the Poaceae family that is commonly found in the coastal area of Dumai, Riau Province. Eleusine indica is characterized by narrow leaves, concave stems that can reach up to 95 cm high and strong roots. E. indica is known to be very tolerant of its environment, including the environment contaminated with heavy metals. The ability of E. indica as a phytoremediation agent in absorbing heavy metals has been widely known as the role of metallothionein (MT) protein. MT is believed to have a function in the metal metabolism and detoxification process through the metal chelating interaction between the cysteine amino acid residues. This unique function prompted the interest to isolate the MT gene from E. indica. This method involves the isolation of genomic DNA from E. indica followed by the process of amplification of the MT gene using specific primers, namely MTFS and MTRS by polymerase chain reaction (PCR) technology. The success of the MT gene isolation process from E. indica was evidenced by the presence of a single band size of around 172 bp via the visualization process on 1% agarose gel. Furthermore, the results of the PCR product are purified for the purpose of sequencing activity. The results of sequencing analysis of the 172 bp fragment showed 99.31% identical similarity with the complete metallothionein gene from E. indica (DQ082855.1) by using the BLASTN tool, NCBI website.
Development Strategies of the Bahari Jawai Marine Tourism Coast Area Based on Community Empowerment in Sambas Regency
Authors: Agam B , Maryono M , Sigiro O N 
Published: December 2021

Abstract
Tourism is an important sector that can increase coastal country’s economies. The industry of tourism has been increasing in recent years and it can generate job opportunities, reduce outward migration, increase the income level, and improve the livelihood of local communities. This paper outlines the potentials and characteristics of natural and human resources as a proponent of the development of marine coast tourism based on community empowerment. This study aims to analyze the potential of resources and the suitability of tourism area which is supporting the attraction of tourists factor to come to Bahari Jawai beach and to develop a strategy for developing the marine tourism area of Sambas Regency based on natural resource potential, perceptions, participation, and aspirations of tourists and the community local. This research method is a descriptive method with the nature of a case study. Data collection was using observation and literature review and was analyzed with quantitative and qualitative analysis on each indicator. The development strategies in this study are 1). Strengthening marine tourism management; 2). Optimizing promotion and socialization on internet media; 3). Optimizing institutional roles in improving coastal security systems and health protocols; 4). Development of accessibility such as supporting facilities for coastal facilities and infrastructure.
The Role of Communication as Mediator of the Commitment Effect on the Marine Fish Supply Chain Performance at Bangliau in Bagansiapiapi Riau, Indonesia
Authors: Hendri R , Yulinda E 
Published: December 2021

Abstract
This survey study aims to analyse the role of communication as a mediator of the commitment effect on the marine fish supply chain performance to bangliau (distributors’ fish landing site) in Bagansiapiapi, Riau Province, Indonesia. The unit of analysis for this study was 40 units bangliau, namely a place of collection, distribution, and marketing of fish. Respondents were 40 bangliau owners/managers who were taken by the census method. The data was collected using a closed questionnaire, containing several statements measured by a 5-point Likert scale. The data collected includes communication (language, clarity of message content, communication frequency, decision without pressure, and communicates honesty); commitment (affective, avoiding opportunists, normative, continuous improvement, goal oriented, confidence); and supply chain performance (the smoothness of the goods flow, money flow, and information flow). There were two hypotheses proposed in this study: commitment has a positive and significant effect on the marine fish supply chain performance in bangliau (H1); and commitment mediated by communication has a positive and significant effect on the marine fish supply chain performance in bangliau (H1a). The data were analysed using the Structural Equation Model (SEM) method, using the Smart Partial Least Square (SmartPLS) software version 3.0. The results show that commitment has a significant effect on the marine fish supply chain performance, but the role of communication as a mediator can further increase the commitment effect. The reason is that communication can increase understanding and help equalize perceptions of the marine fish supply chain among the entities involved.
Analysis of Household Food Security of The Bajo Community in West Muna Regency during The COVID 19 Pandemic
Authors: Limi M A , Zani M , Selvi S 
Published: December 2021

Abstract
Food security during the Covid-19 pandemic is a condition in which all Bajo households have access to food both physically and economically for all their family members so that they are not at risk of losing both access during the Covid-19 pandemic. This study aims to determine the household food security of the Bajo community in the West Muna Regency during the Covid 19 pandemic. This research was carried out in March-May 2020 in Latawe Village, Napano Kusambi District, West Muna Regency. The research location was selected purposively considering that the village is a coastal village where most of the population living is Bajo people who work as fishermen as many as 180 families. Many as 64 families determined the number of research samples using the Slovin formula and sampling using a simple random sampling technique. Data analysis was carried out using a descriptive method to measure the food security of Bajo households during the Covid 19 pandemic, which was estimated using the share of food spending where if the percentage of food spending was <60% of total spending, the household was food-secure and if the share of food spending was 60% of total expenditures, are households that are food insecure. The results show that 46.88% of Bajo households are food secure, and 53.12% are food insecure.