Judul: Pengembangan Perikanan Kakap Putih (Lates calcarifer) di Kabupaten Mimika
Abstrak: Mimika is a regency in the southern part of Papua Province that has potencial barramundi resource. Local fisheries statistics shows that utilization of barramundi until 2005 is still not optimum. This research acsess about the development of barramundi fisheries in Mimika Regency based on biological, technical, social and economic aspects. The objectives of this research were (1) to determine the development opportunity of barramundi fisheries in Mimika Regency (2) to determine an appropriate and environmental friendly fishing technology of barramundi and (3) to determine the development strategy of barramundi fisheries in Mimika Regency. The research method used were the Schaefer surplus production model, bioeconomic Gordon–Schaefer model, suitable effort analysis, determination of fishing unit and analytical hierarchy process (AHP). The results showed that the estimated MSY for the fisheries was 8.348 ton/year. Opportunity at MSY condition was 6.807 ton/year while at MEY management was 6.553 ton/year. From this conclusion, the effort gillnet fishery was more appropriate and advantage than handline fishery. The gillnet becomes main priority for developing with a strategy of fishermen empowerment and cooperative between stakeholders for improving catch and fishermen income.
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Judul: Kajian penangkanapan udang putih kecil (Metapenaeus lysianassa, de Man 1888) sebagai aplikasi pengelolaan di muara Sungai Kakap Kabupaten Pontianak Kalimantan Barat
Abstrak: Small white shrimp (Metapenaeus lysisanassa) fishery using setnets in Sungai Kakap estuary increased from the year 1994 to 2005 and this sector gave a lot of benefit for fishermen. The advantages of this shrimp fishery are providing work and income for local people, providing of nutritious food for human life and local government income from tax or retribution. However, the increasing fishermen effort to catch small white shrimp in this estuary is estimated to be followed by decreasing of their productivities and declining of CPUE trend. The objectives of the study are to obtain distribution pattern of small white shrimp caught by setnet and to obtain CPUE (Catch per Unit Effort) trend of small white shrimp fishery. Eleven stations were established in this site to learn distribution pattern of small white shrimp caught by setnet and time series data of catch and effort was used to calculate the trend of CPUE. The study got information that distribution pattern of small white shrimp was caught in higher numbers in salinity interval 5 – 7‰. Bigger sizes of small white shrimp were found in salinity 10 - 20‰. CPUE of small white shrimp caught by setnet tends to decrease during twelve years.The study result is expected to give information for management plan to manage of small white shrimp fishery.
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Judul: Test of Optical and Electrical Properties of Thin Film Strontium Titanate (SrTiO3) Doped with Lanthanum Oxide (La2O3) with 0%, 2%, 4%, and 6% Exposure Variations
Abstrak: Film tipis Stronsium titanat (SrTiO3) telah berhasil dibuat dengan menggunakan metode Chemical Solution Deposition (CSD) dan Spin Coating. Dalam penelitian ini telah dibuat film tipis Stronsium titanat (SrTiO3) didadah Lantanum oksida (La2O3) dengan variasi pendadah 0%, 2%, 4%, dan 6%. Film tipis tersebut ditumbuhkan di atas substrat silikon tipe-p (100). Film tipis SrTiO3 melalui tahap annealing pada subu 850ºC ditahan selama 8 jam dengan kelajuan kenaikan suhu sebesar 1,67 ºC/menit, kemudian mengalami proses pendinginan 12 jam. Film tipis SrTiO3 didadah La2O3 (0%, 2%, 4%, 6%) dikarakterisasi sifat optiknya dengan menggunakan Spektrofotometer UV-Vis dan sifat listriknya dengan menggunakan LCR meter. Energi bandgap yang dihasilkan film tipis yang dibuat pada penelitian ini secara berurutan adalah 3,48 eV; 3,23 eV; 3,75 eV; dan 3,18 eV. Nilai konduktivitas film tipis SrTiO3 mengalami kenaikan siring dengan bertambahnya intensitas cahaya yang diberikan. Uji sensitivitas film tipis menghasilkan nilai perubahan tegangan (respons) yang dihasilkan menurun seiring dengan berkurangnya konsentrasi pendadah.
Keyword: CSD, Energi Bandgap, Konduktivitas, LCR Meter, Spektrofotometer UV-Vis