Judul: Prospect and Implementation of Tuna Traceability in Palabuhanratu Sukabumi Fishing Port
Abstrak: World Economic Forum mendeklarasikan penghentian tuna ilegal menuju pasar internasional dan komitmen traceability tuna. Volume produksi tuna tahun 2015-2018 di Palabuhanratu menurun yang menyebabkan pelaku usaha mengalami penurunan keuntungan. Berdasarkan hal tersebut perlu dilakukan kajian mengenai pengelolaan tuna dan penerapan traceability. Tujuan penelitian ini adalah mendeskripsikan rantai pasok tuna, mengidentifikasi prospek penerapan traceability tuna, serta merekomendasikan intervensi tindakan teknis untuk penerapan traceability tuna di Palabuhanratu. Metode yang digunakan yaitu metode survei dengan analisis deskriptif dan gap. Rantai pasok tuna di Palabuhanratu terbagi menjadi rantai pasok lokal dan ekspor. Penerapan traceability di Palabuhanratu dikategorikan cukup siap. Rekomendasi tindakan teknis bagi nelayan yaitu peningkatan alat kerja, penambahan es serta perawatan kapal, bagi pegawai pengelola pelabuhan yaitu sosialiasi traceability dan logbook terhadap stakeholders serta menginisiasi nelayan menjadi anggota AP2HI, bagi perusahaan pengumpul yaitu sosialisasi dan pelatihan logbook dan pencatatan informasi penangkapan, peningkatan standar dan pengawasan mutu hasil tangkapan serta pemberian insentif kepada nelayan., World Economic Forum has declared a stop to illegal tuna to international markets and commitment traceability tuna. Tuna production volume during 2015-2018 in Palabuhanratu has decreased which causes business actors to suffer losses. Based on that explanation, it is important to conduct a study on tuna management and application of traceability. The objectives of this study were to describe the tuna supply chain, identify prospects for implementing tuna traceability, and recommended technical action interventions for implementing tuna traceability in Palabuhanratu. The method used is survey method with descriptive and gap analysis. The tuna supply chain in Palabuhanratu is divided into local and export supply chains. Overall, the application of traceability in Palabuhanratu is categorized as quite ready. Recommended technical actions for fishermen are increasing work tools, the addition of ice and the care of the fishing vessel, while the port management employees are advised to socialize traceability towards stakeholders and the importance of logbook and initiate a fisherman to become member of AP2HI, for collecting companies socialization and training are needed on the importance of logbooks and recording of fishing information, as well as improving standards and quality control of fish caught and providing incentives to fishermen
Keyword: Palabuhanratu, Supply chain, Traceability, Tuna

Judul: Implementation of Tuna Traceability in Ocean Fishing Port of Nizam Zachman Jakarta
Abstrak: Ikan tuna merupakan salah satu komoditas unggulan ekonomis tinggi dalam industri perikanan. Negara tujuan ekspor tuna meliputi Amerika Serikat, Uni Eropa dan Jepang. Amerika Serikat dan Uni Eropa mengharuskan sistem traceability. Traceability berperan sebagai sistem untuk menelusuri riwayat produk melalui pendokumentasian. Traceability di Indonesia diterapkan sejak tahun 2010 dan dikembangkan oleh Masyarakat dan Perikanan Indonesia (MDPI) di Indonesia Timur. Pelabuhan Perikanan Samudera (PPS) Nizam Zachman adalah salah satu pelabuhan yang berorientasi ekspor ke Amerika Serikat dan Uni Eropa. Namun, berdasarkan survei pendahuluan diketahui bahwa masih terdapat kelemahan pada sistem pendokumentasian dan kegiatan penanganan tuna saat bongkar hingga pendistribusian ke industri pengolahan perikanan tuna. Oleh karena itu, penelitian ini bertujuan: (1) mendeskripsikan penerapan traceability MDPI; (2) mengidentifikasi struktur rantai pasok di PPS Nizam Zachman; (3) menemukan faktor-faktor penghambat penerapan traceability di PPS Nizam Zachman; (4) merekomendasikan tindakan perbaikan implementasi traceability. MDPI memiliki program unggulan IFITT (improving fisheries information and traceability tuna). IFITT berfokus pada informasi perikanan berbasis teknologi untuk memudahkan traceability perikanan tuna. Sistem yang dikembangkan IFITT meliputi spot trace dan tracetales. Rantai pasok perikanan tuna di PPS Nizam Zachman dari kapal penangkap ikan, kemudian didistribusikan ke industri perikanan tuna. Proses rantai pasok melibatkan pelabuhan sebagai fasilitator dan pengawas kegiatan, nelayan sebagai produsen utama dan industri pengolahan berperan sebagai anggota utama. Melalui rantai pasok dapat ditemukan hambatan atau kekurangan mengenai penerapan traceability di PPS Nizam Zachman. Berdasarkan aktivitas rantai pasok dan hasil penilaian tingkat kesesuaian kegiatan perikanan tuna di PPS Nizam Zachman didapatkan kegiatan yang menghambat traceability. Kegiatan-kegiatan tersebut berupa pengisian e-logbook, penanganan tuna saat bongkar, penanganan ikan tuna di industri pengolahan perikanan tuna, dan industri pengolahan perikanan tuna belum sepenuhnya digitalisasi. Tindakan perbaikan yang dapat dilakukan yaitu: 1) sosialisasi, pelatihan monev dan pemantauan aktivitas nelayan; 2) meningkatkan pemahaman syarat-syarat dasar traceability terkalit mutu ikan tuna dan adanya pengawasan mutu di lapang secara berkala; 3) kolaborasi pemerintah dengan LSM maupun asosiasi industri perikanan tuna., Tuna is one of high economical commodity in fisheries industrialization program. Exporter country of Indonesia tuna are United states, European Union, and Japan. The United States and European Union have decreed the traceability system. Traceability plays a role as a system to trace product history by documentation. Traceability system in Indonesia has been applied since 2010 and developed by Masyarakat dan Perikanan Indonesia (MDPI) in Eastern Indonesia. Nizam Zachman Fishing port is one of fishing port export oriented to United states and European union. But, based on the survey shows that documentation system, tuna handling when loading until distribution process to the processing industry are still low. The objective of this study were: (1) to describe the application of traceability system by MDPI, (2) to identify structure of rantai pasok in Nizam Zachman Fishing port, (3) to formulate obstacle factors of traceability, (4) to recommend improvement action of traceability implementation MDPI has program called IFITT (improving fisheries information and traceability tuna). IFITT focuses on technlogy based fisheries information to facilitate traceability of tuna fisheries. The systems developed by IFITT are spot trace and tracetales. Tuna supply chain in Nizam Zachman Fishing port Zachman was from fishing boats, then distributed
Keyword: GAP analysis, supply chain, traceability, tuna export, tuna handling

Judul: Metrik Einstein (Anti-) Self-Dual Berdimensi Empat dengan Metode Cartan
Abstrak: Gravitational field equation can be formulated in differential forms (differential geometry), which describes gravity as a manifestation of the curvature of space-time. Curvature of space-time is characterized by a metric that satisfies the gravitational field equation. With differential forms it can be formulated the (anti-) self-dual Einstein equation, which is a modification of the Cartan structure in (anti-) self-dual basis. Calculation of (anti-) self-dual metric with (anti-) self-dual Einstein equation is simpler than the calculation using Christoffel symbols.
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