Judul: Model Pengelolaan Perikanan Pelagis Kecil dan Demersal Berbasis Ekologi-Ekonomi di Pantai Utara Blanakan, Subang, Jawa Barat
Abstrak: Blanakan is one of coastal area in North of Java which have fisheries resources potential, some of them which have high production and important economics value are Indian mackerel (Rastrelliger kanagurta) as small pelagis fisheries resources and Ornate treadefin bream (Nemipterus spp.) as demersal fisheries resources. The problem in coastal North of Java and Blanakan is the increasing exploitation of fisheries resources that have caused biological and economical overfishing. The aimed of this research were to analysed exploitated rate of fisheries resources especially on Indian mackerel and Ornate treadefin bream, to make ecology-economy model for fisheries mangement, and to design alternative policy for fisheries management in North coastal Blanakan, Subang. Primary data were obtained by collecting the example of Indian mackerel and Ornate treadfin bream at TPI Blanakan, Subang. Secondary data were obtained by collecting the fisheries production data at KUD Mina Fajar Sidik, Blanakan, Subang. The results of primary data showed that the rate of exploitation (E) on Indian mackerel and Ornate treadefin bream each have reached 60,67% and 66,24%, it mean that both of the fisheries resources have been over explotaited. While secondary data revealed that for Indian mackerel the actual effort used has already exceeds the optimum condition of MSY and MEY, therefor the economic benefit also smaller than in the optimum condition of MSY, MEY. For the Ornate treadfin bream revealed that actual effort used also already exceeds the optimum condition of MSY and MEY, so that the economic benefit also smaller than in optimum condition of MEY, MSY.
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Judul: Bio-economic model of multispecies exploitation of pelagic fishery resources in bali strait
Abstrak: Tropical fishery resources in Indonesia comprised of diverse species resources, thus one type of fishing gear may yield more than one species of fish. Indonesian pelagic fishery resources feature rich potentials, with particular interest to Bali Strait, in where most of existing fishery resources were exploited using purse seine with double fishing lines. This type of fishing gear captured several species of fish, e.g. Lemuru (Sardinella spp.), Tongkol (Euthynnus spp.), Layang (Decapterus spp.), Kembung (Rastrelliger spp.), etc. Accordingly, this research aimed to: (1) analyze exploitation level multispecies pelagic fishery resources in Bali Strait; (2) analyze the optimal level of exploitation and sustainable fisheries for pelagic multispecies resources; and (3) to determine appropriate management policies. The analytical method used was bio-economic multispecies approach with reference to dependencies between different species in Bali Strait. The results showed present condition of exploitation of pelagic multispecies fishery in Bali Strait, and the actual production is lower compare to sustainable production. Current biological and economical thresholds were higher than current exploitation yield. Similar profile was noted for the actual production and fishing effort, which were below optimal value. Consequently, this study revealed that pelagic fishery resources management in the Bali Strait featured inadequate level of economic efficiency. The existing exploitation method for pelagic fishery resources in Bali Strait with purse seine using two fishing lines can be increased in order to obtain the maximum economic benefits, while still maintaining fisheries sustainability for multispecies resources. Maximum economic rents was obtained from cumulative economic rents of different pelagic fish species. Thus, multispecies approach should be the basis in determining the policy of pelagic fishery resources management in Indonesia.
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Judul: Pembuatan dan Karakterisasi Lapisan Tipis Copper oxide (CuO) Sebagai Sensor Gas
Abstrak: Lapisan tipis Copper Oxide (CuO) adalah bahan scmikonduktor yang memiliki sirat sangat scnsitif tcrhadap gas. mcngingat bahan tcrscbut sangat mud-ah mcngabsorpsi gas. DCllgan absorpsi gas ini akan l11crubah resistivitas lapisan tipis tersebut. Dalmn pcmbuatan.lapisan (ipis ini, lllclodc yang digunakan adalah metodc Dcposisi Fasa Cair (Liquid Phase Deposition) yaitu dengan mencmnpurkan 100 ml larutan Copper Sulphal (CuSO, 1I2H,O) 1M dengan 50 ml ammonium 25 %, Kemudian dicuplik 6ml dan dimasukkan ke dalam wadall yang telah terisi aquades 60 ml dan substrat pada dindingnya, kemudian diaduk dengan slirier dan dipanasi pada suhu 75°C selama 1 jam, Pendeposisian ini dilakukan sebanyak 4 kali. Hasil karakterisasi XRD memperlihatkan puncak-puncak CuO yaitu berada pada 28 = 35,306; 38,502; 61.475; 65,538 dengan masing-masing d = 2,5400: 2,3362: 1.5071; 1.4231.
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