Judul: Kajian Kondisi Terumbu Karang dan Komunitas Ikan Karang di Kawasan Konservasi Pulau Biawak dan sekitarnya, Kabupaten Indramayu Propinsi Jawa Barat
Abstrak: Marine Conservation area which is well protected will be ecologically gives positive impact on the abundance and biomass of target species and non-target fish in the area and the surrounding areas (Polunin et al. 1993). The declaration of Biawak Island and Surrounding Areas as a marine conservation area based on the Head of Indramayu District Government Decree number 556/Kep.528- Diskanla/2004 issued on April 7, 2004 on the establishment of Biawak Island and Surrounding Areas as a Marine Conservation Areas and Tourism, one of whose objectives is the protection of habitat and population, is expected to maintain the condition of ecosystems and provide a positive impact on marine resources both ecological, economic, and social. The purpose of this study was to examine the effect of the establishment those areas on coral reef and reef fish communities by studying condition percent cover of coral reef, reef fishes species diversity, abundance and fish biomass. Results showed that there are decrease number of coral reefs percent covers and the low biomass of fish in that the region.
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Judul: Pengelolaan Ekosistem Terumbu Karang Untuk Kegiatan Ekowisata Selam Di Pulau Biawak, Indramayu, Jawa Barat
Abstrak: Potensi ekosistem terumbu karang di Pulau Biawak dapat dimanfaatkan untuk kegiatan wisata bahari, salah satunya adalah wisata selam. Upaya pengendalian dampak kegiatan wisata dapat menggunakan pendekatan ekowisata. Kajian ini dilakukan untuk menganalisis kesesuaian wisata dan daya dukung kawasan serta merumuskan arahan strategi pengelolaan dan pengembangan ekowisata selam. Identifikasi karang dikaji menggunakan metode LIT (Line Intercept Transect) sedangkan kelimpahan jenis ikan karang dikaji menggunakan metode fish visual cencus. Analisis data yang digunakan adalah analisis potensi terumbu karang, analisis kesesuaian lahan, analisis daya dukung dan analisis SWOT. Tutupan komunitas karang hidup berkisar antara 49,82%-66,4% dengan keragaman jenis ikan karang berkisar antara 16–29 jenis. Indeks kesesuaian wisata (IKW) selam di Pulau Biawak termasuk dalam kategori sesuai (S2) dan sangat sesuai (S1) dengan nilai daya dukung kawasan adalah 84 orang/hari. Strategi prioritas yang perlu dilakukan di kawasan Pulau Biawak adalah strategi pengelolaan WT (Weaknees Threat) , yaitu dengan penentuan zonasi kawasan konservasi di Pulau Biawak.
Keyword: ekowisata, pengelolaan, Pulau Biawak, selam, terumbu karang

Judul: Penggunaan Trie dalam Membangun Frequent ltemset Menggunakan Algoritmc FPGrowth
Abstrak: FP-growth algorithm search for frequent itemset using the FP-tree data structure which is a prefix tree structure based on pattern growth algorithm. Prefix tree in FP-Growth uses the trie structure in the relationship pattern among the items in the database. Trie is a tree structure that uses strings as key, where each descendant represents a character or prefix. To find frequent itemset, FP-growth algorithm build prefix tree recursively. However, recursive function may need longer time than the Iterative (Manolopoulos 2003). Goal of this research is to create alternatives iteratively to the development of frequent iternset using trie on the FP-Growth. Research was conducted on several stages for the development of the frequent itcmset using a trie, stage through pruning and without pruning. In the last stages of testing is done using the input parameters, enter the difference in support, the number of transactions, and the items involved. Testing stage compare the execution time in the computing process through the stage with pruning and without pruning. Thing that affects the execution time is the number of items involved in development process of the frequent itemset. Frequent itemset development with the pruning process will he faster than without pruning, hecause at the time to build a combination of frequent itemset, infrequent items are not in the development process.
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