Judul: Potential of Mangrove Resources for Ecotourism Development in Pejarakan Village, Buleleng Regency, Bali
Abstrak: Potensi ekosistem mangrove yang berada di Desa Pejarakan, Kabupaten Buleleng tergolong cukup tinggi untuk dijadikan ekowisata, hal ini didukung oleh keanekaragaman jenis mangrove yang beragam, potensi biota yang tinggi, dan objek pemandangan yang indah. Penelitian ini bertujuan untuk menganalisis potensi sumberdaya mangrove untuk pemanfaatan ekowisata serta merumuskan strategi pengelolaan ekowisata mangrove di Desa Pejarakan, Kabupaten Buleleng, Bali. Penelitian ini berlokasi di ekosistem mangrove PT Agung Menjangan Mas, Tambak Pejarakan BBRBLPP, Desa Pejarakan. Data yang diambil berupa data parameter kesesuaian wisata mangrove, parameter lingkungan, dan parameter sosial ekonomi. Analisis yang dilakukan berupa analisis kesesuaian wisata (IKW), daya dukung kawasan, willingness to pay, persepsi masyarakat, serta analisis SWOT. Hasil penelitian yang didapat sesuai untuk dikembangkan menjadi ekowisata dengan nilai IKW kategori sesuai pada dua titik dan sangat sesuai pada satu titik. Nilai DDK sebesar 234 orang pengunjung per hari dengan panjang lintasan tracking mangrove sepanjang 1.461 meter. Analisis WTP yang didapat untuk tiket masuk sebesar Rp. 15.833, strategi pengembangan yang dapat dilakukan adalah strategi agresif, dan memiliki tiga prioritas strategi utama., The potential of mangrove ecosystems in Pejarakan Village, Buleleng Regency, is quite high to be used as ecotourism; this is supported by the diversity of diverse mangrove species, high biota potential, and beautiful scenic objects. This study aims to analyze the potential of mangrove resources for ecotourism utilization and formulate a mangrove ecotourism management strategy in Pejarakan Village, Buleleng Regency, Bali. This research is in the mangrove ecosystem of PT Agung Menjangan Mas, BBRBLPP Teaching Pond, and Pejarakan Village. The data taken is in the form of data on mangrove tourism suitability parameters, environmental parameters, and socioeconomic parameters. The analysis carried out is in the form of tourism suitability analysis (IKW), regional carrying capacity, willingness to pay, community perception, and SWOT analysis. The results of the research obtained are suitable to be developed into ecotourism, with the IKW value of the category at two points and very appropriate at one point. The DDK value is 234 visitors per day with a mangrove tracking track length of 1.461 meters. According to the WTP analysis obtained for entrance tickets of Rp. 15.833, the development strategy that can be done is aggressive and has three main strategic priorities.
Keyword: Mangrove ecosystem, Tourism suitability index, Willingness to pay

Judul: Potential Development of Mangrove Ecotourism  Batukaras, Pangandaran Regency West Java Province of Indonesia
Abstrak: Penutupan ekowisata mangrove Batukaras pada tahun 2019 silam, banyak memberikan dampak buruk bagi perekonomian setempat. Oleh karena itu, pembukaan kembali ekowisata merupakan salah satu langkah alternatif yang dapat dilakukan. Bukan hanya baik untuk membangun perekonomian setempat, juga baik untuk menjaga kelestarian sumberdaya mangrove. Tujuan penelitian ini adalah menganalisis potensi sumberdaya dan daya dukung untuk pengembangan ekowisata Mangrove Batukaras. Penelitian ini menggunakan metode survei dan wawancara. Penentuan sampel menggunakan purposive sampling. Analisis data yang digunakan yaitu indeks kesesuaian wisata (IKW) dan daya dukung kawasan (DDK). Hasil penelitian menunjukkan bahwa kawasan ekosistem mangrove di Batukaras memiliki potensi besar untuk dapat dibuka kembali menjadi ekowisata. Sebanyak 61% dari total luas kawasan mangrove, masuk dalam kategori sesuai. Nilai daya dukung kawasan yang diperoleh juga masuk dalam kategori sesuai, yaitu dengan jumlah kuota pengunjung maksimum 224 orang/hari., The closure of the Batukaras mangrove ecotourism in 2019, had many negative impacts on the local economy. Therefore, the reopening of ecotourism is one of the alternative steps that can be taken. Not only good for building the local economy, it is also good for preserving mangrove resources. The purpose of this study was to analyze the potential of resources and carrying capacity for the development of Batukaras Mangrove ecotourism. This research uses survey and interview methods. Determination of the sample using purposive sampling. Analysis of the data used is the tourism suitability index (IKW) and the carrying capacity of the area (DDK). The results showed that the mangrove ecosystem area in Batukaras has great potential to be re-opened into ecotourism. As much as 61% of the total area of mangroves is included in the appropriate category. The value of the carrying capacity of the area obtained is also included in the appropriate category, namely with a maximum number of visitor quotas of 224 people/day.
Keyword: ekowisata, daya dukung, potensi, mangrove

Judul: Construction of Strongly Optimal Binary Linear Code with Minimum Distance 9 and 11
Abstrak: A binary linear code of length n over q F is a subspace of n q F . A code has three parameters that attached to it, namely length, dimension, and minimum distance. A code with length n, dimension k and minimum distance d is often called [n, k, d ]-code. Usually, when two parameters are given, then we want to find a code that has the best value for the last parameter. Based on Gilbert- Varshamov bound, if a [n, k, d ]-code exists and can not be expanded, we call it a strongly optimal code. In this paper, we construct strongly optimal code with minimum distance 9 and 11. In constructing the code, we created a theorem and algorithm based on Gilbert-Varshamov bound before we implement the algorithm to MAPLE programming language. Because of computational limitations, the program can only construct up to k = 10 for d = 9 and k = 12 for d = 11.
Keyword: