Judul: Utilization of VIIRS Boat Detection and Vessel  Monitoring System for Fisheries Surveillance in The Marine Sanctuary of  Southeast Aru Islands
Abstrak: Kawasan Konservasi Suaka Alam Perairan (SAP) Kepulauan Aru Bagian Tenggara berada di perairan WPPNRI-718, seluas 114.000 ha. Posisi Kabupaten Kepulauan Aru dikelilingi oleh Laut Aru dan Laut Arafura memiliki potensi sumberdaya hayati berlimpah. Tingginya tingkat penangkapan pada WPPNRI-718 membuat peluang bagi kapal penangkapan ikan masuk kedalam zona larang tangkap di kawasan konservasi. Penelitian ini bertujuan memetakan dan menghitung sebaran kapal berdasarkan data VIIRS Boat Detection (VBD) dengan data Vessel Monitoring System (VMS), membandingkan aktivitas pelanggaran antara kedua data dan merekomendasikan pengembangan pengawasan di kawasan konservasi. Penelitian ini menggunakan metode studi kasus berupa pelanggaran kapal penangkapan ikan di kawasan konservasi. Data yang digunakan adalah data VBD, VMS, batas kawasan konservasi dan kalender bulan. Hasil penelitian menunjukan bahwa berdasarkan data VMS, kapal yang terdeteksi berukuran 39- 198 Gross Tonnage (GT) menggunakan 11 jenis alat tangkap. Terdapat pelanggaran oleh kapal bouke ami, pancing cumi, purse seine dan jala jatuh berkapal dengan ukuran 58-148 GT. Pelanggaran banyak ditemukan pada bulan November saat musim penangkapan ikan di sekitar Pulau Enu dan Pulau Karang. Rekomendasi yang disarankan yaitu pengawasan lebih intensif dilakukan pada saat musim penangkapan ikan., The Southeast Aru Islands Marine Nature Reserve is located in WPPNRI- 718, with an area of 114.000 hectares. The position of Aru Islands Regency is surrounded by the Aru Sea and the Arafura Sea, which have enormous potential for biological resources. The Arafura Sea is an ocean where illegal fishing is common. The high rate of fishing in WPPNRI-718 creates opportunities for fishing vessels to enter the no-take zone in the conservation area. This study aims to calculate and map the distribution of fishing vessels based on data from VIIRS Boat Detection (VBD) with Vessel Monitoring System (VMS), compare violation activities between the two data, and recommend the development of surveillance in conservation areas. The distribution of fishing vessels in conservation zones is studied using a case study approach. The data used are VBD, VMS, conservation area boundaries and lunar calendars. The results showed that based on VMS data, the detected vessels were 39-198 Gross Tonnage (GT), which used 11 fishing gear. There are violations by bouke ami, squid jigging, purse seine and cast nets vessels with a size of 58-148 GT. Most of the violations were found in November during the fishing season around Enu Island and Karang Island. The recommended recommendation is that more intensive supervision is carried out during the fishing season.
Keyword: VBD (VIIRS Boat Detection), VMS (Vessel Monitoring System), no-take zones, Illegal fishing, surveillance of fishing vessels

Judul: Utilization of VIIRS Boat Detection Data and Vessel Monitoring System Data for Surveillance Fishing Vessel Activities in Anambas Marine Protected Area
Abstrak: Aktivitas pelanggaran penangkapan ikan pada zona larang tangkap kawasan Taman Wisata Perairan (TWP) menyebabkan berbagai permasalahan yang harus ditangani oleh Loka Kawasan Konservasi Perairan Nasional Pekanbaru (LKKPN Pekanbaru) Kementerian Kelautan dan Perikanan Republik Indonesia. Penelitian ini bertujuan untuk mengidentifikasi kapal perikanan yang beroperasi di perairan Kabupaten Kepulauan Anambas, mendeteksi kemungkinan adanya aktivitas pelanggaran penangkapan ikan pada zona larang tangkap TWP Anambas, serta membandingkan pelanggaran penangkapan ikan yang terjadi pada zona larang tangkap TWP Anambas. Penelitian ini menggunakan data VIIRS Boat Detection (VBD) dan Vessel Monitoring System (VMS). Analisis data yang digunakan adalah analisis deskriptif, spasial overlay, dan analisis komparatif-deskriptif. Hasil penelitian menunjukkan bahwa aktivitas penangkapan ikan di TWP Anambas tidak hanya dilakukan oleh kapal yang berukuran 1-10 GT, namun terdapat aktivitas penangkapan yang dilakukan oleh kapal berukuran 30 GT atau lebih. Berdasarkan analisis spasial overlay, terdapat kesesuaian data antara data VBD dengan data VMS pada kawasan TWP Anambas. Beberapa rekomendasi tindakan dalam pengembangan pengawasan aktivitas kapal perikanan pada zona larang tangkap diantaranya adalah 1) penggunaan data satelit dan piranti penelusuran jejak sebagai early warning system dalam kegiatan pengawasan kapal perikanan; 2) mengembangkan algoritma yang dapat mengolah dan menganalisis langsung data mengenai sebaran dan posisi kapal pada kawasan konservasi perairan; 3) menandai/ marking transmitter kapal perikanan yang terdeteksi melakukan pelanggaran pada zona larang tangkap kawasan; 4) mengambil menyita SIPI (Surat izin penangkapan ikan) kapal perikanan yang terbukti melakukan pelanggaran, Fishing violation activities in the no-take zone of the Marine Protected Area (TWP) cause various problems that must be addressed by the Pekanbaru National Marine Conservation Area (LKKPN Pekanbaru) and the Ministry of Marine Affairs and Fisheries of the Republic of Indonesia. This research aims to identify fishing boats operating in the waters of the Anambas Islands Regency, detect possible fishing violations that occur in the no-take zone of TWP Anambas, compare fishing violations that occur in the no-take zone of TWP Anambas. This research uses VIIRS Boat Detection (VBD) and Vessel Monitoring System (VMS) data. The data analysis used was descriptive analysis, spatial overlay, and comparative analysis. The results showed that fishing activities in TWP Anambas were not only carried out by boats measuring 1-10 GT, but there were fishing activities carried out by vessels of 30 GT or more. Based on the spatialanalysis overlay, there is data compatibility between VBD data and VMS data in the TWP Anambas area. Several recommendations for actions in the development of monitoring of fishing vessel activities in the no-take zone include 1) using satellite data as an early warning system in fishing vessel surveillance activities; 2) developing algorithms that can process and analyze data directly on distribution patterns and ship positions in marine protected areas; 3) marking fishing boat transmitters detected in fishing violations in the no-take zone area; 4) take or confiscate a fishing boat SIPI (fishing permit) proven to have committed a violation
Keyword: fishing vessel, surveillance, VBD (VIIRS Boat Detection), VMS (Vessel Monitoring System), no take zone

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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