Judul: Kebijakan Pengembangan Ekonomi Perikanan Tuna Longline Berperspektif Mitigasi Bencana Di Padang, Sumatera Barat
Abstrak: This research aimed to determine 1) fisheries sector macro economic conditions, 2) the potential for sustainability and management of fisheries resources, 3) the potential and priorities for mitigation of disasters, 4) the fisheries development and the feasibility investment of disaster mitigation perspective, 5) institutions in fisheries development of disaster mitigation perspective and 6) formulate policy direction of tuna fisheries economy development based on disaster mitigation perspective. The analysis methods was conducted by Shift Share, Location Quotient, Minimum Requirement Approach, Bioeconomic Model, Exponential Comparison method (MPE), Investment feasibility analysis, stakeholder analysis, descriptive analysis and AHP techniques. The result showed that fisheries provide high contribution in macro economic analysis as the leading sectors of regional economic development. The analysis of bioeconomy, especially Tuna was bellow the optimal level, with the optimal management based on MEY management regimes showed that effort can be increase by 133 trip or equal as 33 tuna longliners and a production of 418.53 tons. The highest potential disaster on fisheries was earthquakes, tsunamis, strong winds, and waves. Strategies for mitigation priorities were (1) provision of GPS, APS, disaster information applications for fisherman, (2) provision of early warning and integrated information systems, also (3) establishment of building fishing ports and other infrastructure disaster mitigation perspective. Investment feasibility analysis showed longliner tuna productivity remains high as well as the addition of mitigation facilities, so the development of the business was feasible. Stakeholders involved in this policy were KKP, DKP and local government. This research concluded that appropriate policy strategies could be implemented in Padang city was optimization the production of sustainable fisheries resources through the provision of facilities for fisheries and mitigation perspective, also increase participation and synergy stakeholder to prosperity.
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Judul: Economic Policy For Sustainable Large Pelagic Fisheries Management In East Flores Regency
Abstrak: Tuna and skipjack are categorized as large pelagic fish resource which has a high economic value and exploited for food, nutrition and export. The exploitation of those fishes in East Flores Regency is increasing in the last ten years, and raised the question of sustainable fisheries management. Based on these condition, the research aims to evaluate fisheries resource management, too analyzed economic surplus, to evaluate fisheries sustainable and economic policy analysis for sustainable management of the large pelagic fisheries. Survey method was used in this research and data analysis using bioeconomic, economic surplus, multi dimensional scaling and analysis hierarchy process. Based on analyses, tuna and skipjack resource exploitation is still under maximum economic yield (MEY) level. According to the calculation of the average degradation and depreciation of tuna are 0.350 and 0.351, and skipjack 0.354 and 0.275, since of the value are 0 less than 0.5 indicate that the tuna and skipjack have not degraded and depreciated. The best large pelagic fisheries (tuna and skipjack) management is carried out under level of MEYof tuna which production rate 6,072 tons per year and the effort, as many as 42,904 trips per year, with economic rent of Rp 88.9 billions per year. The economic surplus of producer is Rp 1.5 million per ton and consumer surplus is Rp 46 million per ton. MEY level of skipjack for production rate is 4,652 tons per year, and the effort 20,256 trips per year, with economic rent Rp 38.9 billion per year. The economic surplus of producer is Rp 0.31 million per ton and consumer surplus is Rp 0.58 million per ton. Sustainability analysis showed that three of five dimensions which are ecology, technology and institutional are good condition, but two dimension which are social and economy has to be improved. Policy toward sustainable large pelagic fisheries management should consider environmental friendly technology is the first priority, follows by monitoring and evaluation, price, labor, conflict management and marketing policies.
Keyword: Bioeconomic, Economic Surplus, Resource Policy, Sustainable Fisheries Management, Tuna and Skipjack, East Flores Regency

Judul: Cycle Hamilton pada Graf Lengkap, Graf Regular, dan Graf 2-Connected 4-Regular Berorder Kurang dari Sepuluh
Abstrak: Suatu graf disebut graf Hamilton apabila graf tersebut memuat cycle Hamilton, yaitu cycle yang melewati setiap vertex tepat satu kali. Menentukan keberadaan cycle Hamilton pada suatu graf dapat menggunakan syarat cukup yang berupa teorema-teorema yang telah diperkenalkan sejak tahun 1950-an. Beberapa syarat cukup yang dibahas dalam karya ilmiah ini adalah syarat cukup yang berhubungan dengan graf lengkap dan graf regular. Suatu graf lengkap berorder 𝑛������ ≥ 3 dan graf r-regular berorder 𝑛������ ≤ 2𝑟������ + 1 merupakan graf Hamilton, Karena kedua graf tersebut memuat cycle Hamilton. Selanjutnya, syarat cukup tersebut digunakan untuk menentukan keberadaan cycle Hamilton pada graf 2-connected 4- regular berorder kurang dari 10.
Keyword: graf Hamilton, graf regular, graf lengkap, graf 2-connected 4-regular