Judul: Payang Fishermen Productivity at Nusantara Port of Palabuhanratu Fisheries, Sukabumi District
Abstrak: Kegiatan penangkapan ikan di Pelabuhan Perikanan Nusantara Palabuhanratu (PPNP) didominasi oleh usaha perikanan skala kecil. Nelayan payang termasuk pelaku utama dari usaha perikanan skala kecil yang jumlahnya sebesar 44% dari total jumlah nelayan yang ada di PPNP. Rendahnya faktor-faktor penentu produktivitas nelayan berimplikasi pada rendahnya kualitas hidup individu nelayan dalam konteks permasalahan individu serta berdampak pada stagnansi atau kemunduran usaha penangkapan dalam konteks perikanan sebagai usaha. Penelitian ini bertujuan untuk mengetahui produktivitas nelayan dengan faktor penentunya. Metode pengumpulan data melalui survei, dengan penentuan responden secara accidental sampling menggunakan data primer dan sekunder. Analisis data yang digunakan adalah analisis deskriptif kuantitatif-kualitatif. Hasil penelitian menunjukkan faktor-faktor penentu produktivitas nelayan payang adalah; kualitas SDM meliputi pendidikan dan keterampilan serta K3; teknologi meliputi kapal dan mesin serta alat tangkap; modal meliputi investasi dan biaya; aktivitas pengoperasian meliputi daerah penangkapan ikan, metode penangkapan ikan dan upaya penangkapan ikan; dan modal sosial meliputi norma dan nilai yang dianut, kepercayaan dan jaringan sosial. Rata-rata nilai produktivitas nelayan payang tahun 2015-2019 bernilai 0.05 ton/trip-orang sedangkan saat penelitian bernilai 20.32 kg/trip-orang. Faktor modal sosial seperti pembagian hasil dan kepercayaan menyebabkan produktivitas masing-masing nelayan berbeda sehingga pendapatan yang diterima berbeda, kondisi rata-rata pendapatan nelayan buruh masih dibawah Upah Minimum Kabupaten., Fisheries on Palabuhanratu Nusantara Fishing Port (PPNP) are dominated by small-scale fisheries. Payang fishermens are one of the main stakeholder small-scale fishing industry that reach 44% of the entire fishermen in PPN Palabuhanratu. Lack of supporting component caused low productivity of the fishermen. The purpose of this study to measure the fishermen’s productivity with its determining elements. The study using methodology survey with primary and secondary data. Sampling method used was Accidental Sampling with quantitative and qualitative descriptive analysis. Elements that determined indicate the fishermen’s productivity were: quality of human resources such as education and training also job safety and health, in technology were vessels, its machine and the fishing gears, in capital such as investments and finance, in fishing activities such as fishing grounds, fishing methods and catch effort, and in social aspects such as norms and values, trust and social relations. The average of the fishermen’s productivity from 2015 to 2019 was 0.05 ton/trip per person. The measurement during research was 20.32 kg/trip per person. Based on the social aspects components, it resulted a different productivity level for each fisherman and different income. The labor workers are still paid less than the minimum wage of the district’s law.
Keyword: nelayan, Palabuhanratu, payang, produktivitas, skala kecil, fishermen, Palabuhanratu, payang, productivity, small-scale

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: 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