Judul: Analisis–Ekologi Pengelolaan Perikanan Berbasis Ekosistem Terumbu Karang (Studi Kasus Perairan Pulau Liwutongkidi, Kabupaten Buton, Provinsi Sulawesi Tenggara)
Abstrak: Terumbu karang merupakan ekosistim laut yang sangat kaya akan keaneka ragaman hayati. Terumbu karang memiliki fungsi dan peranan penting bagi kesuburan perairan laut. Dalam penelitian adalah untuk mengidentifikasi nilai ekologi dan ekonomi terumbu karang di perairan Pulau Liwutongkidi, Kabupaten Buton. Tujuan dari penelitian ini adalah (1) mengidentifikasi karakteristik komposisi substrat dasar, struktur komunitas ikan dan korelasinya dengan habitat di ekosistem terumbu karang kawasan konservasi Pulau Liwutongkidi (2) Mengestimasi nilai ekonomi ekosistem terumbu karang di kawasan konservasi Pulau Liwutongkidi (3) menyusun konsep pengelolaan ekosistem terumbu karang berdasarkan model ekologi-ekonomi di kawasan konservasi Pulau Liwutongkidi. Persentase penutupan karang hidup di Pulau Siompu, Kadatua dan Liwutongkidi antara 13.01% - 72.50%, rata-rata persentase penutupan 46.92% berdasarkan lifeform dapat digolongkan kedalam kategori sedang. Hasil sensus kelompok ikan mayor sebanyak 3899 individu dari 26 famili, kelompok ikan indikator dengan jumlah 347 individu sedangkan kelompok ikan target adalah 1625 individu dari 17 famili dengan keanekaragaman antara 2.71 - 4.72% termasuk kedalam kategori sedang sampai tinggi, keseragaman ikan karang antara 0.69 - 0.92 memiliki keseragaman tinggi komunitas stabil. Nilai Ekonomi Total (NET) dari manfaat langsung penggunaan sumberdaya perikanan karang di Desa Kapoa, Desa Waonu dan Desa Tongali masing-masing adalah sebesar Rp. 11.579.106,17, Rp. 43.051.173,27 dan Rp. 15.640.846,46 per bulan. Hasil analisis system dan smulasi ekosistem perikanan karang skenario 3 lebih ideal dalam analisis simulasi biomasa ikan di kawasan konservasi Pulau Liwutongkidi dan sekitarnya ada hubungan timbal balik antara jumlah penangkapan dengan biomasa ikan sepanjang waktu.
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Judul: Analisis Ekologi–Ekonomi Pengelolaan Perikanan Berbasis Ekosistem Terumbu Karang (Studi Kasus Perairan Pulau Liwutongkidi, Kabupaten Buton,
Abstrak: Coral reef one among the most productive and biologically diverse ecosystem on the earth. This thesis tries to explore ecological and economic value of coral reef at Liwutongkidi, Buton District. This study aims to identify: (1) Identified base substrate composition characteristic, fish community structure (2) To estimate coral reef ecosystem economical value and (3) To provide coral reef ecosystem management concept based on ecology-economic model on Liwutongkidi Islands marine conservation area. The percentage of live coral cover estimated around 13:01% - 72.50% on the island Siompu, Kadatua and Liwutongkidi, with the average 46.92% based on lifeform and can be classified as moderate category. Based on reef fish census was found that the major fish group was 3,899 individuals, indicator fish groups was 347 individuals, and the target fish group was 1625 individuals with a diversity between 2.71 - 4.72, which has mean they were all in medium till high category, the uniformity of reef fish between 0.69 - 0.92 which has mean a high category and stable communities. Economy Total (NET) from the direct benefits of coral fisheries resources utilization in coral Kapoa Village, Villages and Countryside Tongali, Waonu were respectively Rp. 11.579.106,17, Rp. 43.051.173,27 and Rp. 15.640.846,46 per month. System analysis and coral fisheries simulation result showed that the third scenario was more ideal in fish biomass simulation analysis on Liwutongkidi Islands conservation area and surrounds, there was a reciprocal relationship amongst catch efforts and fish biomass in a whole time.
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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.
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