Judul: Perikanan Mini Purse Seine Berbasis Rumpon Di Kabupaten Maluku Tenggara
Abstrak: Mini purse seine is one kind of fishing gear that is efficient. The problem is decrease in the number of mini purse seine since 2010. Therefore conducted research on productivity and effort of mini purse seine. This research was conducted in Sathean, Southeast Moluccas Distric. The purposes of this research are: to describe mini purse seine fisheries; to analyze the status of fisheries resources; and to calculated feasibility of mini purse seine. The methods were used in this research: technique and economical feasibility. The result showed that: the construction mini purse seine in Southeast Moluccas Distric consist of bunt, nets, buoys, ropes, sinkers, purse line, rings and selvedge. The value of Revenue-Cost Ratio is 1,16. The value of Payback period is 3,37 years and the value of Return on Investment is 29,69%. Fish Aggregating Device (FAD) is one kind of an auxiliary gear to catching fish in the shallow and the deep sea waters. The installation was to attract schooling of fish to gather arround FAD, so that fish easily to be captured. Fish Aggregating Device (FAD) is one kind of an auxiliary gear to catching fish in the shallow and the deep sea waters. The installation was to attract schooling of fish to gather arround FAD, so that fish easily to be captured. The used of FAD as auxillarry gear technically feasible because appropiate with the technical criteria of FAD.
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Judul: Trial of Portable FADs on Purse Seine Fishing  Gear in Ambon Waters
Abstrak: Maluku adalah provinsi yang terletak di bagian Timur Indonesia. Purse seine merupakan alat tangkap ikan yang digunakan untuk menangkap ikan-ikan pelagis. Rumpon merupakan alat bantu penangkapan ikan. Rumpon portable dirancang sebagai bentuk inovasi pada bidang perikanan tangkap. Pengoperasian purse seine di perairan Ambon belummemanfaatkan rumpon portable sebagai alat bantu penangkapan ikan, sedangkan terdapat permasalahan terkait rumpon menetap. Oleh karena itu diperlukan penelitian terkait penggunaan rumpon portable di perairan Ambon. Tujuan dari penelitian ini adalah menentukan dan membandingkan produktivitas, komposisi hasil tangkapan, dan efektifitas rumpon portable. Metode penelitian yang digunakan adalah experimental fishing yang dilakukan selama 16 trip. Hasil dari penelitian menunjukkan bahwa nilai produktivitas dengan rumpon portable sebesar17,94 kg dan tanpa rumpon portable sebesar 13,63 kg. Jumlah ikan hasil tangkapanpada rumpon portable sebesar 646 ekor, sedangkan tanpa rumpon portable sebesar 788 ekor. Bobot hasil tangkapan dengan rumpon portable sebesar 2002 kg, sedangkan tanpa rumpon portable sebesar 1508,6 kg. Nilai efektivitas yang didapatkan pada rumpon portable sebesar 45,1 %, sedangkan tanpa rumpon portable sebesar 54,9 %. Berdasarkan uji Kruskal-Wallis, data menunjukkan dua perlakuan yang ada tidak berbeda nyata (signifikan).
Keyword: fishing ground, catch composition, productivity, effectiveness, purse seine, portable FAD

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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