Judul: Vulnerability of Boat Seine Fishing in Palabuhanratu Fishing Port
Abstrak: Usaha perikanan payang tergolong dalam perikanan skala kecil, di mana banyak nelayan yang hidupnya bergantung dengan perikanan payang sebagai mata pencahariannya. Permasalahan kemisikinan pada nelayan payang disebabkan oleh perubahan musim ikan, rendahnya teknologi, dan pendidikan yang berdampak terhadap pendapatan nelayan tak menentu dan keberlanjutan usaha perikanan payang. Tujuan penelitian ini adalah mendeskripsikan keragaan teknis dan mengukur faktor-faktor kerentanan perikanan payang di PPN Palabuhanratu. Metode penelitian adalah wawancara dengan kuesioner yang menggunakan instrumen FLIRES check. Pengambilan data menggunakan teknik purposive sampling dengan analisis deskriptif, tabulasi data, dan analisis leverage. Hasil penelitian menunjukkan kapal payang di PPN Palabuhanratu berukuran 5 GT, mesin 40 PK, dan alat tangkap berukuran >200 meter dengan mata jaring yang berbeda setiap bagiannya. Pengoperasian payang masih tradisional dengan metode one day fishing dan daerah penangkapan yang tersebar di Teluk Palabuhanratu. Urutan faktor yang paling resilience hingga yang paling rentan adalah faktor alam, fisik, kelembagaan, keuangan, SDM, sosial. Nelayan payang berada pada status cukup resilience dengan nilai rata sebesar 2,45 untuk pemilik kapal dan 2,21 untuk ABK. Rekomendasi alternatif penanganan nelayan payang adalah penggunaan alat bantu penangkapan dan diberikan edukasi serta pelatihan yang dapat dilakukan oleh dinas terkait setempat., Boat seine fishing provides a source of livelihood for many small-scale fishermen facing poverty due to seasonal fluctuations in fish supply, lack adequate technological resources, and educational constraints. This study aimed to describe technical performance and vulnerability factors of boat seine fishing at Palabuhanratu Fishing Port (PPN Palabuhanratu). The methods included use of FLIRES checks during the interview and purposive sampling using descriptive analyses, data tabulations and levitation analyses. This research found that PPN Palabuhanratu’s average boat seine fishing boats are about 5 tonnes, equipped with engines of 40 horsepowers and with long capture gear of over 200 metre which distinctly had different net design. The fishing operations still used traditional methods such as 'one-day fishing,' covering capture zones spread across Palabuhanratu Bay. Ranking of different types of resilience actors that include; natural, physical, institutional, financial, human resources, and social aspects. The boat seine fishermen were moderately resilient with owner scores averaging 2.45 and crew member (ABK) scores averaging 2.21. The adoption of additional fishing aids, educational and training programs facilitated by local government authorities were recommended for the development of boat seine fishermen.
Keyword: vulnerability, fisher, boat seine, Palabuhanratu, FLIRES check, vulnerability, fisher, boat seine, Palabuhanratu, FLIRES check

Judul: Kerentanan Perikanan Pancing Layur di Pelabuhan Perikanan Nusantara Palabuhanratu
Abstrak: Perikanan pancing layur tergolong dalam perikanan skala kecil, dimana perikanan skala kecil khususnya nelayan masih identik dengan kemiskinan. Kemiskinan pada nelayan diakibatkan karena rendahnya teknologi, pendidikan, modal, serta permasalahan terhadap musim ikan yang selalu berubah dan akan berdampak terhadap pendapatan nelayan. Tujuan penelitian ini adalah mendeskripsikan keragaan teknis dan memetakan faktor-faktor yang mempengaruhi kerentanan perikanan pancing layur di PPN Palabuhanratu. Pengambilan data menggunakan metode purposive sampling. Pengolahan data menggunakan tabulasi nilai, analisis deskriptif dan analisis leverage. Hasil penelitian menunjukan ukuran perahu pancing layur di PPN Palabuhanratu < 5 GT-5 GT. Mata pancing menggunakan no 8,9,10 disesuaikan dengan ukuran target tangkapan. Nelayan pancing layur berasal dari nelayan lokal dan nelayan andon yang melakukan kegiatan harian. Daerah penangkapan ikan pancing layur tersebar di teluk pelabuhan ratu. Nelayan pancing layur berada pada status yang cukup resilien dengan nilai rata rata pemilik perahu sebesar 2,66 dan ABK sebesar 2,53. Urutan bidang dari yang paling resiliens hingga yang paling rentan berturut turun ialah bidang sosial, bidang kelembagaan, bidang keuangan, bidang sumberdaya manusia, bidang fisik dan bidang alam., The handline fishery was classified as a small-scale fishery, where small-scale fishery, especially fisher are synonymous with poverty. Poverty in fisher was caused by low technology, education, capital constraints, changing hairtail fishing season, and will have an impact on fisher’s income. The purpose of this research is to describe the technical performance and categorize vulnerability factors of the handline fishing fishery in PPN Palabuhanratu. Data collection was used purposive sampling method. Data processing was used tabulation of values, descriptive analysis and leverage analysis. The results of this research showed the size of the fishing boats in PPN Palabuhanratu < 5 GT-5 GT, 8 GT. The mainline used numbers 8, 9, 10 based on the size of the target. The fisher come from local fisherm and andon fisher who carry out daily activities. Fishing grounds are spread out in Palabuhanratu Harbor Bay with a distance of about 1-8 miles. The handline fisher are in a fairly resilient status with an average value of 2.66 for owners of the fishing units and 2.53 for crews. The order of resilience levels from highest to lowest are the social sector, institutional, financial, human resources, physical, and nature.
Keyword: vulnerability, fisher, Palabuhanratu, handline, technology

Judul: Penggunaan Teorema Homeomorphy 2-Manifold dan Teorema Euler Poincare pada Torus 𝑇�� dan Simplicial Complex 𝐾��
Abstrak: Two dimensional topological spaces are said to be homeomorphic if they have the same topological invariant, where one of topological invariant used is an Euler characteristic. Homeomorphy 2-Manifold’s Theorem and Euler Poincare’s Theorem are used to distinguish two topological spaces. Homeomorphy 2-Manifold’s Theorem uses Euler characteristic to identify two dimensional topological spaces. Euler Poincare’s Theorem is an alternative way to find Euler characteristic with Betti number, which is topological invariant as well. The objective of this paper is to investigate the homeomorphism of torus 𝑇����� and simplicial complex 𝐾�����. Topological space torus and simplicial complex 𝐾����� have the same Euler characteristic, which is two. Based on Homeomorphy 2-Manifold’s Theorem topological space torus 𝑇����� and simplicial complex 𝐾����� is homeomorphic.
Keyword: simplicial, torus, Euler, homeomorphism, topology