Judul: Analisis Produksi Cumi-cumi Unit Penangkapan Bouke Ami di PPS Nizam Zachman Jakarta
Abstrak: Penelitian ini bertujuan untuk menganalisis teknis alat tangkap, produktivitas dan faktor produksi cumi-cumi dari unit penangkapan bouke ami di PPS Nizam Zachman Jakarta. Analisis data yang dilakukan meliputi analisis teknis, analisis produktivitas serta faktor yang mempengaruhi produksi menggunakan analisis OLS. Alat tangkap jaring bouke ami seluruhnya adalah PE (Polyethylene) dengan bukaan mulut jaring mencapai 15 meter dan panjang jaring mencapai 14 meter. Jaring menggunakan tiang gawang dengan bahan bambu sepanjang 17 meter. Fishing ground unit penangkapan bouke ami terletak di perairan pulau Bangka hingga Selat Karimata. Penurunan produktivitas terbesar pada tahun 2013 terjadi pada nelayan. Produktivitas nelayan menurun jauh lebih dari 19% pada tahun 2013 sementara jumlah nelayan mengalami kenaikan mencapai 42,05% pada tahun 2013. Hasil analisis OLS menunjukkan aktivitas trip, jumlah kapal dan musim mempengaruhi produksi cumi-cumi secara positif, sedangkan nilai negatif terlihat pada nelayan yang artinya semakin banyak nelayan pada unit penangkapan maka produksi cumi-cumi akan semakin tidak efisien., This study aims to analyze the technical of catching gear, productivity and factors of squid production by the bouke ami fishing unit in Nizam Zachman Jakarta Ocean Fishing Port. Data analysis was conducted on the technical analysis, analysis of productivity and factors affecting the production using OLS analysis. Bouke ami fishing gear nets are all PE (Polyethylene) with net mouth openings up to 15 meters long and 14 meters of net reach. Nets using a frame with a 17-meter bamboo material. Bouke ami fishing unit's fishing ground is located at the waters of the Bangka island up to Karimata strait. Biggest productivity reduction in 2013 occurred on fishermen. Fishing productivity reduce much more than 19% in 2013 while the number of fishermen has increased up to 42.05% in 2013, OLS analysis results showed activity of trip, number of vessels and season are positively affect the squid production, while a visible negative value indicated by fishermen which means the more number of fishermen on the fishing unit then the squid production will be even less efficient.
Keyword: cumi-cumi, bouke ami, teknis alat tangkap, produktivitas, faktor produksi

Judul: Analysis of Squid Fishing Seasons and Bouke Ami Production Factors in Fisheries Port of Nusantara Kejawanan
Abstrak: Cumi-cumi yang ditangkap oleh armada bouke ami merupakan salah satu hasil tangkapan yang potensial di PPN Kejawanan. Musim penangkapan cumi dibagi menjadi kategori paceklik, sedang, dan puncak berdasarkan hasil tangkapan yang didapatkan. Hasil tangkapan cumi-cumi dapat dipengaruhi oleh berbagai faktor, seperti tenaga kerja, lama waktu trip, perbekalan dan lainnya. Tujuan penelitian ini menganalisis pola musim penangkapan cumi-cumi dan faktor produksi kegiatan operasi penangkapan cumi-cumi yang dilakukan oleh armada bouke ami di PPN Kejawanan. Metode penelitian yang digunakan adalah menggunakan analisis catch per unit effort (CPUE), analisis deret waktu metode rata-rata bergerak, analisis indeks musim penangkapan, dan analisis dekriptif faktor produksi dari data time series laporan tahunan pelabuhan. Berdasarkan nilai indeks musim penangkapan (IMP) yang diperoleh, diduga musim sedang terjadi pada bulan Februari, Maret, April, Mei, Juli, dan Desember. Sedangkan musim puncak terjadi pada bulan Januari, Juni, Agustus, September, Oktober, dan November. Hasil penelitian menunjukkan terdapat beberapa faktor produksi yang digunakan pada kegiatan operasi penangkapan cumi-cumi armada bouke ami di PPN Kejawanan, di antaranya adalah ABK, lama waktu trip, perbekalan air, dan perbekalan BBM. Jumlah penggunaan faktor produksi tersebut cenderung menyesuaikan dengan ukuran dan kapasitas kapal penangkap ikan., Squid from bouke ami is one of the potential catches in PPN Kejawanan. The fishing season is divided into bad, intermediate, and peak categories based on the catch. Several variables might affect squid catches, including manpower, trip duration, supplies, and others. This study aimed to analyze the squid fishing season pattern and the production factors for squid fishing operations in PPN Kejawanan. The research methods applied include the catch per unit effort analysis, time series analysis utilizing the moving average approach, fishing season index analysis, and descriptive analysis factors of production from the port annual report time series data. In the fishing season acquired, it is assumed that the intermediate season runs from February, March, April, Mei, July, and December. While January, June, August, September, October, and November will be the peak seasons. Results of the study showed that there were several production factors used in the squid fishing operation of bouke ami fleet at PPN Kejawanan, including crew members, length of trip, water supplies, and fuel supplies. Amount of use of these production factors tends to adjust to size and capacity of the fishing vessel.
Keyword: bouke ami, squid, PPN Kejawanan, fishing season, production factors

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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