Judul: Model of capture fisheries co-management in Palabuhanratu
Abstrak: Co-management is an approach to management of fishery resources which provide a large role for public participation in the facilitation by the Government and other stakeholders in managing its available resources. Palabuhanratu including many coastal areas has involved public participation, government, universities, NGOs, and private sector in the development of their fisheries activities, and is currently a core minapolitan area. This study aims to analyze the present condition of the implementation of the concept of fisheries co-management in Palabuhanratu and the dominant variables that affect it, determine the type and allocation of fishing effort, determine the appropriate co-management model, and formulating the implementation patterns of co-management cooperation in support of capture fisheries management in Palabuhanratu. This study used a SWOT analysis, QSPM, AHP, scoring analysis, feasibility analysis, analysis of LGP, and SEM analysis. Implementation of fisheries co-management is currently in Palabuhanratu still in a steady growth (quadrant of the matrix V IE, total IFAs = 2.66, total EFAs = 2.46). Dominant variables affecting the implementation of fisheries co-management is a human resource (TNPV = 5.82), capital (TNPV = 5.63), and technology (TNPV = 5.44). Co-management model that most appropriate for the management of capture fisheries in Palabuhanratu is a cooperative co-management model (RK = 0.259 on inconsistency reliable 0.07). Potential fishing effort that supports co-management fishery was payang, gillnet, troll lines, and longline, with the optimal allocation of 141 units, 31 units, 30 units and 20 units, respective by implementation of cooperative co-management can be focused on developing human resources capital (p <0.05), whereas the development of fishing technology can be ignored (p> 0.05). Human resource development should be done in the form of technical assistance and guidance, while training / education in the classroom can be reduced. Capital resources should be prioritized in the capital independent fishermen (K = 0.273, p = 0.00), and the capital of financial institutions (KP = 0.277, p = 0.00). Periodically, the performance of the implementation of co-management in fisheries should be evaluated. This performance evaluation should focus on improving the welfare of fishermen (KP = 3.385, p <0.05) and resource conservation and environmental protection (KP = 2.083, p <0.05).
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Judul: The model of capture fisheries management in the area of Bali Strait
Abstrak: The fisheries activity was being prime mover (around 80%) of the fishermen and the society economic in the area of Bali Strait. However, it would be very much trivial if the potency was not well managed and unable to give the prosperity for the fishermen society. The research purposes were to determine the level of fishermen prosperity, to forecast the production of major catch of fishes, to determine the level of fisheries business feasibility, to formulate the management of the capacity building for strategy of fisheries resources, and to build the management model of the area that guarantees the sustainability of fisheries development. The method used consisted of the level of prosperity analysis, forecasting analysis, business feasibility analysis, strategy analysis by using AHP, and model analysis by using SEM. The results of analysis showed that the level of fishermen prosperity in the area of Bali Strait was ‘moderate’ (total score=25.80). The production of lemuru tended to increase within the last several years and at the year of 2010 was forecasted to decrease 44,899.13 tonnes. The production of tongkol tended to decrease, and at the year of 2010 was forecasted to reach 2,035.30 tonnes. The production of layang also tended to decrease, and at the year of 2010 was forecasted to reach 1,967.01 tonnes. As the dominant fisheries business, purse seine one boat system (OBS), purse seine two boat system (TBS), gill net and ‘payang’ were very feasible to be developed in the area indicatively the values, NPV>1, IRR>6.25, ROI>1, and B/C Ratio>1. The development managed by the spesific institution establised by local governments (RK=0.284) was the right strategy of capacity building in order to manage the fisheries resources in the area. This specific institution roled to organize the fisheries resources conservation programs, to regulate the exploitation of fisheries resources based on local governments policy (SKB), to supervise selling price and fishing gears operation periodically, to provide the information centre of job opportunity and the vocational centre, and to facilitate the local revenue planning of the sector of fisheries. The management model of the area developed could fit some criteria such as goodness of fit (Chi-square, signifance probability, RMSEA, GFI, AGFI, CMIN/DF, TLI, dan CFII). The results of analysis of the model showed that some concerned components for sustainability guarantee of fisheries development in the area required were local market performance, export market performance, product supply of processing industry to the market, biodiversity, prosperity of fishermen, work force absorption of capture fisheries business and industry, growth of capture fisheries business, income of processing industry and tax.
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Judul: Solusi Geometri Schwarzschild untuk Dimensi 4+1 dengan Invarian Rotasi Isotropik.
Abstrak: Metrik Schwarzschild merupakan solusi eksak pertama dari persamaan medan Einstein dengan mangasumsikan metrik statik dan simetris. Metrik Schwarzschild yang ditemukan oleh Karl Schwarzschild masih dalam dimensi 3+1, namun seiring dengan teori-teori terbaru yang menunjukkan bahwa alam semesta tidak hanya di dimensi 3+1. Maka melalui penambahan dimensi, tujuan penelitian ini memperoleh solusi pada geometri Schwarzschild untuk dimensi 4+1 dengan memodifikasi koordinat bola yang invarian rotasi isotropik dan melalui penurunan rumus seperti koordinat bola, simbol Christoffel, dan tensor Ricci. Selain mendapatkan solusi ini, metrik Schwarzschild dimensi 4+1 dapat digunakan sebagai metrik dasar untuk memperoleh solusi blackhole dan wormhole pada dimensi 4+1. Hasil akhirnya, dengan memanfaatkan modifikasi koordinat bola, metrik Schwarzschild dapat dibentuk sehingga diperoleh solusi geometri Schwarzschild untuk dimensi 4+1.
Keyword: metrik Schwarzschild, persamaan medan Einstein, modifikasi koordinat bola, penambahan dimensi, invarian rotasi isotropik