Judul: Mangrove Resources Management Strategy in Pari  Island, Seribu Islands
Abstrak: SHAVA HUSNANIZAHWA. Strategi Pengelolaan Sumberdaya Mangrove di Pulau Pari, Kepulauan Seribu. Dibimbing oleh Prof. Dr. Ir. FREDINAN YULIANDA, M.Sc. dan Prof. Dr. Ir. MENNOFATRIA BOER, DEA. Ekosistem mangrove memiliki peran penting dalam komponen penyusun wilayah pesisir yaitu menjaga garis pantai dan mencegah terjadinya abrasi. Ekosistem mangrove berfungsi sebagai tempat pemijahan (spawning ground), tempat pengasuhan (nursery ground), dan tempat mencari makan (feeding ground) oleh biota laut. Masyarakat sering mengambil buah mangrove dan nelayan biasanya menangkap ikan di sekitaran mangrove. Destinasi wisata yang ditawarkan oleh masyarakat yaitu mengelilingi hutan mangrove menggunakan perahu milik masyarakat. Pengelolaan yang dilakukan oleh masyarakat Pulau Pari masih mengedepankan mass tourism sehingga dihawatirkan menimbulkan kerusakan dan pencemaran lingkungan. Tujuan penelitian adalah mengetahui kondisi sumberdaya mangrove dan menentukan strategi pengelolaan pada sumberdaya mangrove. Penelitian dilaksanakan pada bulan September hingga November 2023 di Pulau Pari, Kepulauan Seribu. Analisis yang digunakan adalah Indeks kesehatan mangrove (IKM) dan analisis SWOT. Hasil yang diperoleh adalah nilai IKM pada area penelitian tergolong kedalam kategori sedang. Terdapat tiga jenis mangrove yaitu Rhizophora stylosa, Rhizophora apiculata dan Sonneratia alba. Strategi alternatif berdasarkan prioritas untuk pengelolaan sumberdaya mangrove yaitu implementasi dan penegakan aturan yang jelas terkait pengelolaan mangrove dengan adanya keterlibatan antara pemerintah dan masyarakat serta melakukan konservasi mangrove berbasis masyarakat dengan adanya keterlibatan pemerintah., SHAVA HUSNANIZAHWA. Mangrove Resources Management Strategy in Pari Island, Seribu Islands. Supervised by Prof. Dr. Ir. FREDINAN YULIANDA, M.Sc. and Prof. Dr. Ir. MENNOFATRIA BOER, DEA. The mangrove ecosystem plays an important role in the components of coastal areas by maintaining the coastline and preventing erosion. The mangrove ecosystem functions as a spawning ground, nursery ground, and feeding ground for marine biota. The community often harvests mangrove fruits, and fishermen usually catch fish around the mangroves. The tourism destination offered by the community includes tours around the mangrove forest using local boats. The management conducted by the Pulau Pari community still prioritizes mass tourism, which is feared to cause damage and environmental pollution. The aim of the study is to determine the condition of mangrove resources and to develop a management strategy for these resources. The research was conducted from September to November 2023 on Pari Island, Seribu Islands. The analyses used are the Mangrove Health Index (IKM) and SWOT analysis. The results show that the IKM value in the research area falls into the poor category. There are three types of mangroves Rhizophora stylosa, Rhizophora apiculata, and Sonneratia alba. The alternative strategy based on priority for mangrove resource management includes the implementation and enforcement of clear regulations regarding mangrove management with the involvement of both the government and the community, and conducting community-based mangrove conservation with government participation.
Keyword: Pulau Pari, Pari Island, ekosistem mangrove, pengelolaan, strategi, management, mangrove ecosystem, strategy

Judul: Socio-Ecological System of Mangrove Ecotourism in Pari Island, Seribu Island, DKI Jakarta
Abstrak: Ekosistem mangrove adalah ekosistem pesisir yang dimanfaatkan sebagai olahan pangan, perikanan, dan ekowisata. Tujuan penelitian ini adalah mengidentifikasi komponen sistem sosial ekologi, mendeskripsikan pemanfaatan serta faktor-faktor pendukung pengelolaan mangrove Pulau Pari, Kepulauan Seribu. Pengumpulan data diperoleh dengan pengukuran kerapatan mangrove dan kualitas air pada 3 stasiun. Wawancara dilakukan kepada masyarakat, wisatawan, dan pengelola wisata. Analisis data terdiri dari analisis kerapatan mangrove, konektivitas sistem sosial ekologi, analisis pemangku kepentingan, dan analisis strategi pengelolaan mangrove. Hasil menunjukkan bahwa komposisi mangrove di Pulau Pari tergolong dalam kategori sedang dengan spesies yang mendominasi adalah Rhizophora stylosa. Konektivitas yang terjadi pada sistem sosial-ekologi ekowisata mangrove menunjukkan bahwa peran resources governance masih minim. Rekomendasi pengelolaan yang penting untuk dilakukan yaitu kerjasama pemerintah dengan masyarakat pulau sebagai aktor yang turut serta mengelola ekosistem., Mangrove ecosystems are coastal ecosystems that are utilized as processed food, fisheries, and ecotourism. The purpose of this study was to identify the components of the social ecological system, describe the utilization and supporting factors of mangrove management on Pari Island, Kepulauan Seribu. Data collection was obtained by measuring mangrove density and water quality at 3 stations. Interviews were conducted with the community, tourists, and tour managers. Data analysis consists of mangrove density analysis, social ecological system connectivity, stakeholder analysis, and mangrove management strategy analysis. The results showed that the composition of mangroves on Pari Island was classified as moderate with the dominating species being Rhizophora stylosa. The connectivity that occurs in the social-ecological system of mangrove ecotourism shows that the role of resource governance is still minimal. Management recommendations that are important to do are government cooperation with the island community as actors who participate in managing the ecosystem.
Keyword: connectivity, ecotourism, mangrove, Pari Island

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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