Judul: Management of mud crab (Scylla olivacea) at mangrove ecosystem in coastal subdistrict East Sinjai, Sinjai Regency, South Sulawesi.
Abstrak: Sinjai Subdistrict is one of the coastal district area located in Sinjai Regency, South Sulawesi. The region has a fairly extensive mangrove and crab potential of 62,36 tonnes in 2010 for local and export market. The objectives of this research were 1) to identify mangrove ecosystem status in Tongke-tongke and Samataring villanges, 2) to identify bioecological status resource of mud crab (S. olivacea) in the Tonngke-tongke and Samataring villanges, 3) Formulate management strategy of the mud crab to ensure the sustainability of its utilization. The data was collected since February to May 2010. Mud crab’s bioecology status was analyzed using by calculating the growth parameters and prediction of the mortality and exploitation rate of the mud crab using FISAT II software programme. Sustainability analysis was done by using multidimensional scalling approach of Rapfish method. Result of the study show mangrove density both of location was very good, which was between 4.925-9.667 tree/ha. Explotation rate status of the mud crab was exceed the optimum limit but still slight below the allowed of exploitation which was between 0,75-0,81/year. The results obtained for the management of the four dimensions which is value of ecological status that sustainable in management was 50,06% and, while in the value of economic social and institutional dimension status which was less sustainable in management were 49,00%, 30,23% and 40,84%, respectively.
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Judul: Kajian Ekopnomi dan Ekologi Pemanfaatan Ekosistem  Mangrove Pesisir Tongke-Tongke Kabupaten Sinjai Provinsi Sulawesi Selatan
Abstrak: The ecosystem of mangrove forest at the coastal area of Tongke-Tongke, Sinjai Regency, South Sulawesi Provence, which is the result of the community’s self effort, is feared to face degradation as a result of the demand of local community for livehold, there for this research was intended to a) determine the economic value of the mangrove ecosystem at Tongke-tongke, b) analyze the suitability of the mangrove area particularly for fish pond, and c) determine the socio-economic condition of the local community. Te area suitability for fish pond was determined on the basis of the water quality, soil quality and areasupporting resources by analysis of Geografic Information System (GIS) and factorial discriminant analysis. The data of socio-economy was obtained by interviews of quistionnaires with 84 respondents. To examine the effect of socioeconomic factors, a multivariate analysis of the principal component (PCA) and linear multiple regression analysis were employed. The result of the research showed that the area was highly suitable for fish and shrimp ponds, and scenario 1 (natural condition of mangrove) was the most profitable alternative management. Result of economic benefit analysis on mangrove determine that the highest proportion for total economic value of mangrove ecosystem was indirect benefit with value Rp. 4.434.816.711,00/year or 96,67 %, furthermore the existence benefit was Rp.101.478.371,00/year or 2,21 % and the indirect benefit was Rp.46.643.904,00/year or 1,02 %, while choice benefit value was Rp.4.434.450,00 /year or only 0,10 % from total benefit value. Individuals with a big number of family numbers tended to have a big number of workers, high income and expenses, too. The family income is affected by the number of family number, independent ratio, and type of jobs; where expense is influenced by the umber of family member and independent ratio.
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Judul: berjudul Pelabelan Prima pada Graf Gurita (On) dengan Penambahan Simpul Duplikasi.
Abstrak: Setiap graf gurita adalah graf prima sedemikian sehingga pelabelan simpul pada graf gurita merupakan pelabelan simpul pada graf prima. Suatu Graf ( ( ) ( )) dapat dikatakan memiliki pelabelan simpul pada graf prima jika graf tersebut memenuhi fungsi bijektif ( ) { } dan untuk setiap sisi ( ( ) ( )) . Dalam karya ilmiah ini, akan ditunjukkan bahwa graf gurita memiliki pelabelan prima dan merumuskan graf gurita duplikasi dengan penambahan simpul dari simpul graf kipas ( ) graf gurita ( ), graf bintang ( ) graf gurita ( ), dan simpul utama pada graf gurita ( ) adalah graf prima dengan
Keyword: graf gurita, graf prima, pelabelan prima, penambahan simpul