Toba Samosir Research Articles

Culturable gut bacteria of Ikan Batak (Neolissochilus sumatranus Weber & de Beaufort, 1916) collected in Toba Samosir, Indonesia

Abstract. Dinoto A, Handayani R, Setianingrum N, Julistiono H. 2020. Culturable gut bacteria of Ikan Batak (Neolissochilus sumatranus Weber & de Beaufort, 1916) collected in Toba Samosir, Indonesia. Biodiversitas 21: 4483-4488. Ikan Batak (Neolissochilus sumatranus Weber & de Beaufort, 1916) is one of the fish species that is rarely found in water and have the status of endangered species. In consequence, the loss of endemic fish may contribute to the loss of microorganisms that inhabits the fish as a host. The studies on microorganisms associated with N. sumatranus are very limited. Therefore, the purpose of this study was to isolate and identify the culturable bacteria isolated from the gut of N. sumatranus. Sampling of N. sumatranus was carried out in a river within Toba Samosir area which flows to Lake Toba. Fish gut content was collected for isolating microorganisms using three media, including MRS, 10X diluted MRS, and MRS supplemented with 1% bile salt. Thirteen isolates were successfully isolated and identified based on 16S rRNA. This study revealed various species of gut bacteria recovered from N. sumatranus based on BLAST analysis. The isolates showed closest relationship to species Bacillus subtilis (3 isolates), Bacillus tequilensis (2 isolates), Tumebacillus ginsengisoli (6 isolates), Klebsiella pneumoniae (1 isolate), and Lactobacillus pentosus (1 isolate) with the similarity ranging at 98.7 to 100%. All 16S rRNA gene nucleotides of isolates have been submitted to GenBank. This study also described the isolates that have a very close relationship with Bacillus tequilla and Bacillus subtilis. Further identification is challenged to obtain a big picture of the diversity of microorganisms and the functionality in the digestive ecosystem of N. sumatranus for their conservation and bioprospecting of microbial-based aquaculture.

Analysis of Landslide Prone Areas in Tampahan, Toba Samosir Regency, North Sumatra Province

The topography of the Tampahan area which tends to be steep and dominated by tuff lithology can result in a landslide. The intensity of landslides and the resulting losses can be reduced by the analysis of landslide-prone areas in Tampahan. The administration of the area is located in Toba Samosir Regency, North Sumatra Province which is included in the Toba Caldera Region. Analysis of landslide-prone areas is carried out with five parameters namely slope, land use, morphological elevation, lithology, and rainfall. The data processed in this analysis comes from field data, DEMNas (National Digital Elevation Model), and other spatial data. Classification of each parameter and weighting based on literature is away in the analysis of landslide-prone areas of Tampahan. Then do each parameter overlay to get the value of landslide-prone and distinguished based on the calculation of the landslide class interval. The results are divided into five classes that are prone to landslides, namely classes not prone (1-1,8), rather prone (1,8-2,6), quite prone (2,6-3,4), prone (3,4-4,2), and very prone (4,2-5). Based on the analysis that has been done, some areas are very prone to landslides in the southeast while areas that are not prone to landslides are in the southwest of the study area. Therefore, landslide-prone studies are categorized as high landslides with almost 60% coverage of the study area.

Designing Port Passenger Terminal in the Meat Village as Ecotourism Area with Neo Vernacular Architecture Approach

This journal is essential for social, economic, and government in the Meat Village. It is about a potentially marine tourism destination, located in Meat Village, Tampahan District, Toba Samosir Regency, North Sumatra Province. As one of the tourism destinations, this village needs to be developed, especially water transportation, which is supported by Lake Toba's natural resources. But it has been replaced by land and air transportation. On the other hand, water transportation has its privilege, namely giving a sense of being united with nature and listening to the gentle sound of water, which cannot be felt if using land or air transportation. Therefore, it requires a passenger port to facilitate tourists in accessing this tourism village through water transportation. This port consists of a passenger terminal that accommodates passengers' departure and arrival. The method used in site selection is done through discussion of primary data, namely data sources that directly provide data to data collectors and secondary data, that is, data that does not directly provide data to researchers, through other people or analyzed documents and concluded. The result of the methodology used is, this passenger terminal needs the Neo Vernacular Architecture approach for the design. Because the village has aspects of the past, such as Batak Toba culture and mythology that need to be preserved and introduced to the present as long-term projections for the future. This is useful to make the building becomes part of the Meat Village community.

Pengembangan Homestay Dalam Peningkatan Kunjungan Wisata di Kabupaten Toba Samosir Kecamatan Lumbanjulu

The development of the tourism sector can encourage the income of the surrounding community due to the presence of attractions, as well as Homestay is a very lucrative destination for foreign exchange. Homestay development must be supported by good facilities and infrastructure for each area, so that guests who come and stay feel happy. In Toba Samosir Regency there are still many who do not understand the homestay and the guesthouse, where there are still many homestays that do not have the standard homestays that should be. Through this research the writer will conduct an analysis by conducting research and direct interviews with several workers, visitors, and homestay businesses in Toba Samosir Regency. Where this research uses descriptive methods, the results of this study are that the development of homestays can increase the level of visits, where the homestay here as one of the facilities that is more flexible and affordable.

PHYTOCHEMICAL SCREENING OF SIJUKKOT EKSTRACT (Lactuca Indica L.)

Have been carried out Phytochemical screening on Sijukkot which determited as Lactuca indica L, the plant from Gibeon hill forrest area in the village of Parsaora Sibisa Ajibata, Toba Samosir, North Sumatera. Test carried out to determine the composition of secondary metabolites contained in these plants. It was started by extracting plant leaves using 96% ethanol solvent which was carried out by maceration method and concentrated using a rotary evaporator. The concentrated extract obtained was sponsored by phytochemical tests. Phytochemical test results on ethanol extracts from the leaves of the Sijukkot plant were obtained compositions namely Flavonoids, tannins, saponins, steroids and triterpenoids.

Economic Develompment Strategy Through Rural Areas A Case Study in Toba Samosir, North Sumatera, Indonesia

This study aims to analyze rural area development after Law No. 4, 2014, concerning villages. The new round of village development begins with the rights of recognition and the program of rural development by the Indonesian government. In this case, the village fund is the government flagship policy for village development, which considered to succeed in increasing the quality of people's lives through infrastructure, community empowerment, and the formation of rural areas. The development of rural areas is a center of growth, whereas focusing on the most developed areas in the disadvantaged region. To encourage the village economy, some policies used in rural areas by developing several villages that have different potential within locations. A method in this research is a case study that occurred over the past four years in Indonesia. In this case, the declining number of poor people become interesting. It happens because rural development, such as Ajibata, Toba Samosir, North Sumatra, Indonesia, can encourage regional development. The concept of rural areas relying on the coffee's attractiveness and coffee's processed as well as increasing the scale of coffee’s agricultural and the coffee's product value. Therefore, innovations in rural area development are significant to support regional economic development.

HUBUNGAN PENGETAHUAN DENGAN UPAYA PENCEGAHAN DINI OSTEOPOROSIS WANITA USIA 45-60 TAHUN

International Osteoporosis Foundation (IOF) revealed that 1 in 4 women in Indonesia with an age of 50-80 years have a risk of osteoporosis. Loss of the hormone estrogen after menopause increases risk of developing osteoporosis. This research aims to reveal the Relationship between Knowledge and Early Prevention of Osteoporosis in Women 45-60 Years Old in Banua Huta Village, Sigumpar District, Toba Samosir Regency in 2020. This study used a descriptive approach with a sample of 35 people used total sampling. This study uses the Spearman correlation test. The results of the study are related to knowledge with early prevention of osteoporosis Women aged 45-60 years in Banua Huta Village, both variables with a sig. (2-tailed) value of 0.003 with a very strong relationship strength r = 0.09. This happens because people's perceptions about the concept of healthy pain that are not in line even very contrary to the health service provider, the community consider illness is a state of the body lying in bed and can not do any activities so prevention efforts are ignored because health problems are not a priority in life and life and there are still many factors that influence a person to take any action not just knowledge. Health workers in Puskesmas have the role of providing information in the form of counseling or health education to elderly women about knowledge and efforts to prevent early osteoporosis so that the number of osteoporosis does not increase.

Prediction and mapping of landslide hazard in North Sumatera

Mapping of landslide hazard in North Sumatera is very important to identify the areas potential. In this study we try to predict and mapping of landslide hazard in North Sumatera using scoring and GIS. Compare to the ground movement vulnerability and rainfall series, the areas with steep topography have landslide hazard forecasts, which are dominated by zones with medium hazard forecasts. High-level landslide hazard forecast maps are in the areas of South Tapanuli, Mandailing Natal, Humbang Hasundutan, Central Tapanuli, North Tapanuli, South Nias, West Nias, Padang Lawas, Toba Samosir, Langkat, Samosir, Pakpak Bharat, and Karo districts.

Patchouli Farmers Strategy For Business Development In Meranti Tengah Village, Toba Samosir Regency)

This research aims to determine the strategy of business development of patchouli oil farmers in improving economic welfare, to analyzing obstacles or barriers in running the cultivation and production of patchouli oil in central Meranti The district of Pintu Pohan Meranti Toba Samosir Regency. This type of research is descriptive research with a qualitative approach because the research intends to understand what phenomena experienced by the subject of research. The method of determining the area of the research use Purposive technique or deliberate with consideration of Central Meranti is one of the villages that the majority of its citizens still hang the livelihood as a patchouli oil farmer. Data collection methods are obtained from primary data and secondary data where primary data is obtained through interviews with Informans as well as direct observations of the field, and secondary data is obtained from the relevant agencies. The Data obtained is then analyzed using SWOT analysis. The results showed that there were only 2 families that still maintain patchouli oil farming efforts with patterns and strategies to develop this business in a simple way. Patchouli marketing is also do by selling directly due to price fluctuations that happen very often. In addition, the limited information such as the writing and socialization of a patchouli is still very limited from the government to the farmers so that more and more farmers are switching commodities.

Predicting the potential distribution of Taxussumatrana using Maximum Entropy Model

Taxussumatrana as the medicinal plant is noted as endangered species. As a potential medicinal plant, conservation act is important. This study aims to identify the environmental variablesthat contributes to T. sumatrana distribution and predict the potential areas for T.sumatrana conservation area. The Maximum Entropy (Maxent) was applied to model the species distribution. The presence of T. sumatrana was collected from 77 locations across the Sumatra. Climate and biophysical variables were used to determine the potential distribution of species. The results showed that a minimum temperature of coldest months has the highest permutation importanceby 66.3% while the highest contribution variable was altitude by 48.1%. Soil type has an important value that is not presented in other variables. Potential regions for T. sumatrana distribution were: North Sumatra (Karo, Dairi, Toba Samosir, and Simalungun District), West Sumatra (Agam, Tanah Datar, SawahLunto and Solok District), Jambi (Bungo, Merangin and Kerinci District), Bengkulu (Bengkulu Utara), and South Sumatra (Lahat District). The potential environmental condition for T. sumatranais 1,500m above sea level and upper, minimum temperature of the coldest month below 100C with precipitation in the driest month between 50-70 mm/month. The species is potentially found in Humid Andosol and Vitric Andosol soil types.

HKBP HIV-AIDS Committee Balige Coordination with the Regional Government HIV-AIDS Handling Program in Toba Samosir Regency 2018

The increase in the number of HIV-AIDS cases in the last ten years from 2008 to 2017 in Toba Samosir Regency with an average HIV growth of ≥ 7% and AIDS growth of ≥ 31%, has to be handled by implementing a special program. The lack of coordination between HKBP AIDS Committee Balige and Regional Government has to be made since there is no similar opinion about HIV-AIDS, the government agencies which are joined in the Committee of Regional AIDS Handling are not focused on prioritizing HIV- AIDS problems, and coordination in planning has not been optimal so that the budget is limited. The objective of the research was to find out the coordination between HKBP AIDS Committee, Balige and the Regional Government in HIV-AIDS Handling program in Toba Samosir Regency. The research used qualitative method (phenomenology design) which was aimed to get information about the coordination in preventing and handling HIV-AIDS in Toba Samosir Regency, with 20 informants. The data were gathered by conducting in-depth interviews and documentary study and analyzed by using content analysis. The result of the research showed that coordination, involvement, and active participation of all agencies in the KPAD (Regional AIDS Handling Committee), the implementation of budget planning, and activity planning were inadequate. It is recommended that formal meetings be increased in order to develop communication and to create good coordination, either from budget planning or from the implementation of handling HIV-AIDS in Toba Samosir Regency.

The ambiguous identity of Lumban Bulbul

Lumban Bulbul Beach, located on the bank of Lake Toba, the North part of Balige City has transformed rapidly in the last 5 years from qualitative to quantitative values. The space of village for daily life with the use-value of living focused on family and agriculture and livestock, today has become commercial activities space with exchanged value. The government of Toba Samosir District intervenes the beach construction to show the progress of development. For decades, community planted bamboo along the beach as wind defenses and maintains fish life and farming, but today transformed into the recreational beach with food and beverages stalls of the community. The local wisdom is ignored and exploited for commercial purposes. The orientations of the houses gradually turn towards the beach for serving modern recreational life. The dualism of life occurs in the area is creating ambiguity, one side as the local community’s daily life, and the other side to gain profit. The research conducted by quantitative method with the observation of space, activity, users, find the ambiguity of the house along the beach, between daily life space with use-value of the community for several generations, and modern commercial space along the beach with exchange-value.

Survey and Mapping of P Nutrient Status on Paddy Land in Aek Simare Irrigation Area, Laguboti District, Toba Samosir Regency, Northern of Sumatera, Indonesia

The research aims to a mapping of nutrient status available phosphate and total phosphate in the Aek Simare Irrigation Area Laguboti District Toba Samosir Regency. This research was conducted at the Testing Laboratory of Agricultural Technology Research Center in North Sumatera Province. Which began in Mey to June 2019. The method used is the Free Grid Survey detailed level survey and analysis of nutrient data available phosphate by Bray I method, total phosphate by acid destruction method, and then interpret to the map nutrient status. The result of research showing that status available phosphate classified by 3 statuses such as medium (3,99 ha), high (44,26 ha), and very high (71,75 ha). Total phosphate classified in 4 nutrient status such as low (0,004 ha), medium (67,37 ha), high (45,316 ha) and very high (7,31 ha). Available phosphate and total phosphate are very related to increasing rice production in the Aek Simare Irrigation Area Laguboti District Toba Samosir Regency, Northern of Sumatra, Indonesia REFERENCES BPS Toba Samosir. 2018. Laguboti Subdistrict in Figures 2018. Central Bureau of Statistics of Toba Samosir Regency. De Datta, S.K., Buresh, R.J., Mamaril, C.P. 1990. Increasing Nutrient Use Efficiency in Rice with Changing Needs. Kluwer Academic Publishers. Netherland. Center for Soil and Agro-Climate Research (PUSLITANAK). 1983. Assessment Criteria of Soil Chemical Properties. Center for Soil and Agro-climate Research. Bogor Agriculture Department. 2007. References Determination of Fertilizer Recommendations N, P, and K on Specific Rice Fields Location. As an Appendix of Permentan Number40 / Permentan / OT.140 / 04/2007. Sanchez, P. A. 1993. Nature and Tropical Management 2. Translation of Amir Hamzah. ITB. Bandung. Agricultural Land Resources. Bogor, 30 November - 1 December 2010. Husnain. 2010. Loss of Nutrients Due to Burning Rice Straw and Potential of Environmental Pollution. Soil Research Institute. Published Paper at the Proceedings of the National Seminar. Soil Research Institute. Published Paper at the Proceedings of the National Seminar Agricultural Land Resources. Bogor, 30 November - 1 December 2010.

The Study About The Comparation Between Batak Toba Traditional House in Huta Raja Samosir and Lumban Binanga Toba Samosir

Tobanesse is a part of Bataknesse that most of them live around Lake Toba. In every area inhabited by Tobanesse, there are some traditional houses that still can be seen today. Batak Toba traditional house is generally full of symbols. The traditional house of Batak Toba was being built not only for shelter but also full of philosophies which become the guidelines of life This research is classified into a study using descriptive research method that is comparative. The research method is being used to review the traditional house of Batak Toba by comparing the traditional house in Huta Raja Samosir and Lumban Binanga Toba Samosir based on theories about Batak Toba traditional house. The benefit of this research is to know about the comparison of Batak Toba traditional house in Huta Raja (Lumban Suhi-Suhi, Samosir) and Lumban Binanga (Jangga Dolok, Toba Samosir). The comparison can be seen based on the parts of the Batak Toba traditional house in both villages. From the results of comparisons made, there are some differences in Batak Toba traditional house in Huta Raja Samosir and Lumban Binanga Toba Samosir.

The potency of active components containing on andaliman fruit [Zanthoxylum acanthopodium] for increasing the quality of salted eggs

A type of spice that is still limited to use with primary commodities is andaliman [Zanthoxylum acanthopodium DC]. Geographically, the spice is only found in the district of Toba Samosir which is closed to Lake Toba. The herb plant is a group of family Rutaceae and has identified with the name of Andaliman [Batak pepper]. The chemical compound that is thought to have the most role in various biological activities of andaliman fruit as an antioxidant and antimicrobial for food processing. Research conducted to determine the phytochemical compounds, the group of secondary metabolites within the extraction, and the influence of antimicrobial compounds from essential oils on salted eggs. Parameters were chemical compounds from different extracted and quality of the eggs. The chemical composition of each extract was examined by both the Harborne method and GC-MS. Results showed that phytochemical contents contained steroid and triterpenoid for three types of extraction with no detect for saponin. Antimicrobial compounds sourcing from andaliman extracts can inhibit the Staphylococcus aureus. Besides, the quality profile of salted eggs by ripening with andaliman extracts was significantly influenced comparing with control. It can be concluded that the active components of andaliman extract have potentially affected the quality of salted eggs.

Model Arrangement of The Meat Village as an Alternative Tourism Destination of Toba Lake

The development of tourism in Sumatera Utara is currently focused on the Toba Lake National Strategic Area. One tourist destination is on the outskirts of Toba Lake namely Meat village, Toba Samosir Regency. Preliminary studies show that the tourist attraction of Meat village has not been optimal in capturing tourist visits. The world travel concept elevates local wisdom as an innovation in the tourism industry. This study aims to uncover the potential of nature and culture as a model for developing tourist destination areas by elevating the wisdom of local landscapes. The analysis was carried out using SWOT to explore the potential of landscapes and local activities to be used as elements of tourist destinations that would be designed to be a model of tourism. The results of the research show that there are five tourism activities, namely on Toba Lake beach tours, hill tours, paddy field tours, tomb tours, and traditional house tours. The tourism activity can be a model arrangement and guide for the development of local wisdom-based activities as a mainstay of Meat village tourism and alternative tourism for Toba Lake in Sumatera Utara province.

PENGARUH PENGEMBANGAN BANDARA SILANGIT DAN PARIWISATA DALAM MENINGKATKAN PERTUMBUHAN EKONOMI DI SUMATERA UTARA

Silangit Airport is an air transportation infrastructure located in Silangit, North Tapanuli, North Sumatra Province. The government has set Lake Toba as a tourism destination the main attraction for local and foreign tourists. With the continued development of regional tourism, the number of passengers and the number of tourists to SIlangit Airport will continue to increase and affect the regional economic growth which will have an impact on the figure of the North Sumatra Province GRDP. Therefore, the government has begun a big plan to advance Indonesian tourism starting from the construction of facilities and infrastructure in each tourist area. Lake Toba, located in Toba Samosir Regency, North Sumatra, is the largest lake in Indonesia, which is expected to bring more visits from various regions, both domestic and foreign. The aim of the study was to identify and analyze the problems of developing Silangit airport to support the acceleration of development in tourism. The results are recommendations for developing the Silangit airport area, including increasing accessibility and transportation connectivity from / to tourist locations throughout the region of Lake Toba tourism object by building Kualanamu-Parapat toll roads, Silangit-Parapat and feeder roads as well as adequate and then traffic smooth, safe, safe.

Pentahelix model application for tourism development strategy

This study discussed the application of the Pentahelix model in the development strategies of Toba Samosir tourism. The current research was conducted using a qualitative method with a phenomenological approach. It aimed at exploring how stakeholder synergy in each formulation, as well as the development of tourism. Research data were collected through observation, interviews, literature review, and surveys. The results showed that the lack of synergy between stakeholders caused the low number of tourist visits. The government tends to assume that the stakeholders are the sole owner of the power so that the development of tourism has not been able to produce welfare, even, it tends to cause prolonged conflict within the community itself. Therefore, the current study proposes a vital step of pentahelix model, in which the government of local regency should have better synergy with stakeholders.

Inventory of Pitcher Plant (Nepenthes sp.) and Its Existence in North Sumatra Indonesia

Nepenthes sp. is a carnivorous plant with unique shape and color shades. This unique plant has a special leaf modification called a pitcher which has the capability in catching insects and small animals. The purpose of this research was to know the types and habitat of Nepenthes sp. that found in six regencies in North Sumatra. The pitcher plants inventoried from South Tapanuli, Central Tapanuli, Humbanghasundutan, Toba Samosir, Dairi and Samosir regency in North Sumatra. The research type and method were conducted by descriptive qualitative and survey method research. The morphology data of Nepenthes sp. used to identify the types of Nepenthes sp. in North Sumatra. Inventory result of Nepenthes sp. from six regency showed that there were five original species in North Sumatra namely Nepenthes tobaica, Nepenthes gracilis, Nepenthes ampullaria, Nepenthes eustachya, Nepenthes rhombicaulis and one natural hybrid species Nepenthes reinwardtiana x spectabilis. Nepenthes tobaica, Nepenthes gracilis had upper and lower pitchers while Nepenthes ampullaria, Nepenthes eustachya, Nepenthes rhombicaulis and Nepenthes reinwardtiana x spectabilis just had an upper or lower pitcher. All species lived in low or high lands and most of them found in peat area, high humidity, and high light intensity.

ANALISIS PELAKSANAAN STRATEGI PEMBELAJARAN INKUIRI OLEH GURU PENDIDIKAN AGAMA KRISTEN DALAM MENINGKATKAN KEAKTIFAN BELAJAR SISWA KELAS XI SMK NEGERI 1 LAGUBOTI KABUPATEN TOBA SAMOSIR TAHUN PEMBELAJARAN 2019/2020

The research aims is to know the level of propensity for the implementation of inquiry learning strategies by PAK teachers in improving on student learning activeness in grade XI SMK Negeri 1 Laguboti Toba Samosir in 2019/2020. The population is all students of class XI SMK Negeri 1 Laguboti Toba Samosir in 2019/2020 amounted to 233 people and sample in this study 30% of the population were 70 people. The sampling technique uses a random sampling technique. The instrument used in this study was a closed questionnaire that was tested on 30 students outside the study sample of 38 items. From the results of the instrument validity test as many as 35 items are valid and 3 items are invalid, thus as many as 35 items are used as research instruments. Then the tendency level of the implementation of inquiry learning strategies by PAK teachers in improving on student learning activeness in grade XI SMK Negeri 1 Laguboti Toba Samosir in 2019/2020 is in a fairly good category of 38.57% and 61.43% again obtained from other inherent factors that is not examined in this study. Keywords : Analysis of Implementation of Inquiry Learning Strategies by PAK Teachers in Improving Learning Activeness