Judul: The shrimp fisheries management options of the Arafura Sea
Abstrak: Arafura Sea is the one of the 9 fishing grounds in Indonesia for shrimp fishing which the total area is estimated 150.000 km2. The total fish stock is estimated to be 1.076.890 tons/year and the demersal fish stock inlcuding shrimp is 145.830 tons/year. The shrimp fisheries condition at Arafura Sea is presumed to be over fishing and overcapacity due to ineffective of current management, lack of law enforcement capabilities, and lack of fishermen concern of the sustainable principles. The main objective of the dissertation is to formulate the shrimp fisheries management options which include vessels number reduction, implementation of quota and seasonal closure. The specific objectives of the dissertation are include: (1) analyze the shrimp fisheries bioeconomic, (2) analyze the actual versus sustainable production trend, (3) measure shrimp fishing capacity and efficiency, (4) formulate the recommendation of the future management options.
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Judul: Shrimp And Tuna Industry In Indonesia Strategy To Increase Indonesian Fisheries Competitiveness For Shrimp And Tuna
Abstrak: The APEC Economic Leaders Meeting (AELM) on November 25, 1997, in Vancouver has decided to speed up trade and liberalization of fisheries products as one of seven recommended sectors. Several tough questions arouse on Indonesian fisheries industry such as how government provide a conducive business climate for fisheries entrepreneurs, and how fisheries producers set out clear strategies towards free trade eга. Those questions are very important because fisheries industry competitiveness is rely on the support of government and the role of fisheries entrepreneurs. In Indonesian fisheries industry, two major commodities that play an important role are shrimp and tuna. Both of them contributed around 70% of Indonesian fisheries export value and more than 30% of export volume in 1996. However, most of Indonesian exports are in fresh and semi-processed condition. In other word, endowment factors such as natural resources and low labor cost are dominantly determine the export. Meanwhile, detention from importing countries, still become a constrain for Indonesian exports. Limited products quality is the reason to embargo Indonesian products. The objectives of this study were to identify the general structure and performance of shrimp and tuna industries and to conduct business environmental assessment, including field research to evaluate strengths, weaknesses, opportunities, and threats of Indonesian shrimp and tuna industries. The result was then used to examine the strategies and business implications for the Indonesia shrimp and tuna industries in order to develop the industry, to improve competitiveness, and to maintain its sustainability. The study was conducted through the analysis of primary data and supported by secondary data. Primary data were obtained by the survey conducted at Indonesian Fisheries Federation (GAPPINDO), Indonesian Tuna Association (ASTUIN), PT. Usaha Mina (Persero), PT. Samudera Besar (Persero), PT. Harini Asribahari, PT. Sinar Mangkudijaya, PT. Triasta Citarate, and PT. Indramas Sempurna. For completing reliable data, actual information was also collected from interviews with experts, magazines, journals, and news papers. Analytical Hierarchy Process (AHP) technique was also applied to simplify the expert judgement before the SWOT matrix analysis was used to conduct the environmental assessment. The global supply of shrimp from 1991 to 1996 decreased by 5% affected by the declining volume of sea shrimp caught, while shrimp pond production fluctuated with the tendency to increase. The future shrimp trade is estimated to be more dependent on the shrimp pond production due to the decreasing sea shrimp carrying capacity in nearly all waters in the world. On the other hand, the global supply of tuna
Keyword: supply of shrimp, fisheries products, shrimp, tuna

Judul: Penentuan Nilai Eigen dan Vektor Eigen dari Matriks Tridiagonal 2-Toeplitz dengan Pendekatan Polinomial Chebyshev
Abstrak: The eigenvalues and eigenvectors of a matrix can be determined by finding its characteristic polynomials. The characteristic polynomials of a tridiagonal 2-Toeplitz matrix is shown to be closely connected to polynomials which satisfy the Chebyshev recurrence relationship. If the order of the matrix is odd, then the eigenvalues are found explicitly in terms of the Chebyshev zeros and the eigenvectors are found in terms of the polynomials satisfying the recurrence relationship. For even ordered matrices, the situation is more complicated. The problem in these cases is that although the Chebyshev recurrence formula is still applied, its initial values are not generating Chebyshev polynomials
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