Judul: Penggunaan Rumpon Hanyut Berumpan terhadap Hasil Tangkapan Pancing Ulur di Perairan Teluk Palabuhanratu
Abstrak: Minimnya pengetahuan teknologi nelayan pancing ulur Palabuhanratu membuat produktivitas hasil tangkapan semakin rendah, sehingga untuk meningkatkan produktivitas tersebut perlu adanya introduksi alat bantu penangkapan berupa kombinasi rumpon dan umpan. Tujuan penelitian ini yaitu membuat rancang bangun rumpon hanyut berumpan sebagai perlakuan, membandingkan komposisi hasil tangkapan pancing ulur perlakuan dan kontrol, menentukan pengaruh penggunaan rumpon hanyut berumpan, dan menentukan produktivitas pancing ulur perlakuan dan kontrol. Penelitian ini dilaksanakan di Perairan Teluk Palabuhanratu menggunakan metode experimental fishing dengan 16 trip sebagai ulangan. Hasil penelitian ini menyatakan bahwa hasil tangkapan pada pancing ulur perlakuan lebih unggul dibandingkan kontrol. Selama 16 ulangan hasil tangkapan pancing ulur perlakuan sebesar 98,67 kg sedangkan kontrol sebesar 62,34 kg. Berdasarkan hasil uji analisis Mann-Whitney perlakuan menggunakan rumpon hanyut berumpan memberikan pengaruh nyata terhadap jumlah ekor dan berat hasil tangkapan. Produktivitas pancing ulur perlakuan memiliki nilai yang lebih besar dibandingkan pancing ulur kontrol, yaitu masingmasing sebesar 6,17 kg/trip dan 3,90 kg/trip dengan persentase rata-rata produksi pancing ulur perlakuan meningkat sebesar 58,28%. Pendapatan bersih pancing ulur perlakuan sebesar Rp51.020,00 dan kontrol Rp21.416,00., The lack of technological knowledge for handline fishermen in Palabuhanratu has resulted in lower catch productivity. To increase the productivity of the hand line, it is necessary to introduce fishing aids in the form of a combination of FADs and bait. This study aimed to design and build baited drift FADs as a treatment, to compare the catch composition of treated and control handlines, to determine the effect of using baited drift FADs, and to determine the productivity of treated and control handlines. This research was conducted in the waters of Palabuhanratu Bay using the experimental fishing method with 16 trips as repetition. The results of this study stated that the catch on the treatment line was superior to the control. For 16 repetitions, the catch of the treatment line was 98.67 kg, and the control was 62.34 kg. Based on the results of the Mann-Whitney analysis test, the treatment using baited drift FADs significantly affected the number of tails and the weight of the catch. The productivity of the treated handline had a more excellent value than the control handline, which was 6.17 kg/trip and 3.90 kg/trip, respectively, with an average percentage of treated handline production increasing by 58.28%. The net income of the treatment handline was Rp51.020,00, and that of the control was Rp21.416,00.
Keyword: attractor, baited, FADs, handline, Palabuhanratu Bay

Judul: The Use of Bait Booster of Bottom Gillnet  in Palabuhanratu
Abstrak: Perkembangan teknologi alat tangkap jaring rampus dan metode operasi penangkapannya tidak banyak mengalami perubahan dan cenderung statis. Selain itu, permasalahan yang dihadapi oleh nelayan rampus di Teluk Palabuhanratu adalah produktivitas hasil tangkapan yang tidak meningkat. Upaya yang dilakukan adalah penggunaan booster umpan sebagai inovasi teknologi alat bantu pemikat. Dengan demikian penelitian penggunaan booster umpan dengan kombinasi tiga jenis umpan diperlukan untuk mendapatkan solusi permasalahan bagi nelayan jaring rampus yang dapat memberikan peluang meningkatkan produktivitas hasil tangkapan sekaligus meningkatkan pendapatannya. Metode yang digunakan yaitu dengan membandingkan jaring rampus piece perlakuan dengan jaring rampus piece kontrol. Penelitian ini dilaksanakan di Laboratorium Teknologi Alat Penangkapan Ikan FPIK IPB dan Perairan Teluk Palabuhanratu dengan metode eksperimental fishing dengan melakukan sebanyak 20 trip sebagai ulangan. Hasil penelitian yang didapatkan menunjukan peningkatan pada piece perlakuan terhadap piece kontrol. Produktivitas jaring rampus perlakuan memiliki nilai yang lebih besar daripada piece kontrol, yaitu sebesar 0,85 kg/piece dan 0,50 kg/piece, kemudian untuk persentase pertambahan produksi jaring rampus piece perlakuan terhadap kontrol sebesar 70,53%. Jaring rampus perlakuan mendapatkan pendapatan bersih sebesar Rp14.446,00/piece sementara untuk piece kontrol sebesar Rp6.287,00., The development of technology for Bottom Gillnet fishing gear and its catching method has not much changed and tends to be static. In addition, the problem faced by gillnet’s fishermen in Palabuhanratu is the productivity of their catches does not increase. The effort made is the use of bait booster as the innovation of luring tool technology. Thus research on the use of bait booster with a combination of three types of bait is needed to find the solution to the problem for gillnet’s fishermen which can provide opportunities to increase catch productivity while increasing their income. The method used was to compare the treatment gillnet piece with the gillnet control piece. This research was carried out at the Fishing Equipment Technology Laboratory of FPIK IPB and Palabuhanratu with an experimental fishing method by conducting 20 trips as repetition. The research results showed an increase in the treatment piece against the control piece. The productivity of treated gillnet has a greater value than the control piece, which is 0.85 kg/piece and 0.50 kg/piece, then the percentage of treated piece productivity is 70.53%. The treated gillnet gets a net income of Rp14,446.00 while the control piece gets Rp6,287,00.
Keyword: booster, jaring rampus, Palabuhanratu, umpan, bottom gillnet, bait

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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