Judul: Pengembangan Perikanan Tangkap Berbasis Optimasi Sumberdaya Ikan Pelagis di Kabupaten Banyuasin Propinsi Sumatera Selatan
Abstrak: The pelagic fish is one of potential fishery resources in Banyuasin District. The production of pelagic fish fishery landed in Banyuasin District was 29,6 ton in year 2006. The objectives of the research were 1) to determine fishing technology for pelagic fish which more effective, efficient and sustainable based on biological, technical, social, economic and environment aspect; 2) to allocate optimum of pelagic fish catching unit in Banyuasin District; and 3) to determine development strategy of pelagic fisheries. The result of this research indicated that drift longline fishing technology is more effective, efficient and sustainable than drift gillnet and liftnet. The number of optimum allocation of fishing unit has been calculated which consist of drift longline 51 unit, drift gillnet 45 unit and liftnet with 55 unit. The output of feasibility analysis of drift longline fishery is the study area, indicated profit of Rp. 18,767,666, its NPV value was Rp. 55,855,075, Net B/C was 2.22, the BEP value was Rp. 39,055,258 that equal to production 23,669 kg, the ROI and IRR value were 41 % and 48. The output of feasibility analysis of drift gillnet fishery is the study area, indicated profit of Rp. 17,320,000, its NPV value was Rp. 46,437,216, Net B/C was 2.08, the BEP value was Rp. 26,951,872 that equal to production 16,171 kg, the ROI and IRR value were 40 % and 48 %. The output of feasibility analysis of liftnet fishery is the study area, indicated profit of Rp. 23,610,000, its NPV value was Rp. 214,477,312, Net B/C was 3.94, the BEP value was Rp. 31,292,924 that equal to production 16,506 kg, the ROI and IRR value were 32 % and 83 %. The development strategy of pelagic fisheries in Banyuasin District are: (1) optimization pelagic fish fishery with drift longline; (2) development pelagic fish fishery focusing in 6-12 mile zone; (3) Increase management effort of fisheries business; (4) revitalization of fisheries infrastructure and facility; and (5) Empowering scale of fishing fleet and its technology.
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Judul: Optimasi Perikanan Layang di Kabupaten Selayar Propinsi Sulawesi Selatan
Abstrak: Scads is a potential fishing resources in Selayar regency. The production of scads fishery landed in Selayar regency was 31.5 ton in 2006. The objectives of the research are 1) to determine priority of catching technology development for scads fish in Selayar district; 2) optimum allocation of scads fish catching unit in Selayar district; and 3) to determine development strategy of scads fishery. Survey method and direct observation was used in research methodology. Some analysis used in this research were 1) Scoring method, to determine the best of scads fishing technology pursuant to biological, tehnical, sosial, economical aspects and environmentally friendly; 2) LINDO analysis was used to determine optimum allocation in scads fish catching unit; and 3) SWOT analysis was used to determine development strategy of scads fishery. The result of this research is that the scads purse seine fishing technology become the most effective, efficient and suistainable. Optimum number allocation of scads fish catching unit used in Selayar district waters is 61 units of purse seine. The development strategy of scads fishery at Selayar district are (1) Optimizing scads fishery; (2) Operating economical oil consumption fishing unit; (3) Capital effort with low interest are available; and (4) Improvement of stakeholders and public function in fishing gear operation controlling.
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Judul: Perbandingan Algoritma Message Digest 5 (MD5) Dan Secure Hash Algorithm 1 (Shai) Untuk Autentikasi Pesan
Abstrak: Seiring dcngan meningkatnya penggunaan internet sebagai media pertukaran pcsan. metodc pcngamanan pcsan menjadi sangat penting. Nilai suatu pesan yang ingin dijaga keutuhan atnu intcgritasnya menycbabkan pesan tcrscbut hanya baleh dimodifikasi olch pihak yang bcrhak. Namun pada rcalitanya, pesan tersebut akan mendapat ancaman dari scorang penyusup. Bentuk ancaman terjadi apabiJa pcnyusup dcngan suatu cara. dapat mengubah isi pesan terscbut untuk bcrbagai kepcntingan. Apabila isi pesan telah bcrubah dad bentuk aslinya, maka pesan terscbut dikatakan sudah tidak aulcnlik (asli) Iagi. Snatn metodc yang efektif untuk mcnguji kcautentikan suatll pesan digllnakan tcknik kriptografi. Pada kal)'a ilmiah ini akan dibahas algoritma Message Digest 5 (MDS) dan Secure !-lash Algorithm (SHAI) untuk autentikasi pesan.
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