Judul: Analisis Pengembangan Sumberdaya Ikan Pelagis Kecil di Kabupaten Halmahera Utara
Abstrak: Usaha penangkapan ikan di wilayah pengelolaan perikanan Indonesia saat ini telah berkembang dengan pesat. Perkembangan tersebut telah menyebabkan tingginya tekanan pemanfaatan terhadap sumberdaya ikan di beberapa wilayah perairan Indonesia, sehingga menyebabkan terjadinya overfishing seperti di Laut Jawa dan Selat Malaka. Namun demikian di beberapa WPP lainnya masih terdapat peluang usaha penangkapan yang dapat dikembangkan seperti di WPP Laut Sulawesi dan Samudera Pasifik. Bila perkembangan pemanfaatannya melebihi daya dukung sumberdaya, maka kelestarian sumberdaya ikan akan terancam. Usaha perikanan pelagis kecil di perairan Laut Kabupaten Halmahera Utara telah berkembang dari tradisional menjadi semi industri. Hal ini dicirikan dengan peningkatan kapasitas penangkapan yang meliputi ukuran dan kekuatan mesin kapal, perluasan daerah penangkapan, serta penggunaan alat bantu penangkapan baik rumpon maupun lampu celup bawah air. Dengan adanya peningkatan kapasitas tersebut, dapat menyebabkan terjadinya konflik secara berkala antara nelayan tradisional dan nelayan semi tradisional dalam kompetisi perebutan stok ikan pelagis kecil. Perairan Laut Kabupaten Halmahera Utara yang luasnya kurang lebih 19.536,02 km², berbatasan langsung dengan Laut Maluku di sebelah barat, Laut Halmahera di sebelah timur dan Samudra Pasifik di sebelah utara. Posisi geografis yang terbuka seperti itu memberikan suatu kondisi oseanografis yang baik, karena laju pergantian massa air (flushing rate) sangat tinggi sehingga selalu terjadi pergantian massa air baru dan segar. Perairan Laut Kabupaten Halmahera Utara memiliki potensi sumberdaya ikan yang besar dan memberikan peluang untuk dimanfaatkan secara optimal. Potensi sumberdaya ikan yang terdapat di perairan ini antara lain ikan pelagis (besar dan kecil), ikan demersal dan ikan karang. Untuk memanfaatkan potensi ikan tersebut, terutama ikan pelagis kecil, nelayan Kabupaten Halmahera Utara masih banyak tergantung pada teknologi penangkapan ikan tradisional yang diwarisi secara turun-temurun. Jenis alat tangkap yang digunakan dalam kegiatan operasional penangkapan ikan seperti pajeko (small purse seine), jaring insang permukaan (surface gill net), jaring insang hanyut (drift gill net), bagan tancap (fixed lift net), dan bagan perahu (boat lift net). Perairan Laut Halmahera Utara yang memiliki luas 19.536,02 km2 , diperkirakan potensi sumberdaya ikan lautnya sebesar 97.867 ton/tahun, yang terdiri dari kelompok ikan pelagis kecil 22.542 ton/tahun, pelagis besar 61.135 ton/tahun, demersal 11.096 ton/tahun dan lainnya (ikan karang, lobster) sebesar 3.094 ton/tahun (Dinas Kelautan dan Perikanan Halmahera Utara).....dst
Keyword: Maximum Suistainable Yield (MSY), Maximum Economic Yield (MEY), dominant fishing gear, small pelagic fish, development, North Halmahera Sea

Judul: Pengembangan Perikanan Tangkap Berbasis Komoditas Unggulan di Kabupaten Halmahera Utara
Abstrak: North Halmahera Regency with its sea area of 19536.02 km2 (78%) has the potential of fish resources (standing stock) accounting for 664,382.48 tons with sustainable potential fish production (the Maximum Sustainable Yield / MSY) of 347,191 tons per year, i.e., 211,590 tons of pelagic fish and 135,005 tons of demersal per year. The problem in the development of capture fish in North Halmahera is that its excellent commodities are as yet unknown and the policies in the fishery production are not based on excellent commodities. This research is to examine the superior commodities of fishery production, and the policies in capture fishing production in order to increase the income of fishermen. To determine the excellent commodities, the following analyses were made: (1) production continuity, average production, prices, processing and marketing, (2) Method of Location Quotient (LQ) and (3) SWOT Analysis. The results showed that of 38 species of fish that were analyzed, 31 species were of a continuous type and 7 species of non-continuous type. The average fish production is below the average production of all types of fish except for cakalang fish of 11,131.472 tons and flying fish of 4405.296 tons per year. The fish price is generally below average price of all types, except for the following types of fish: beronang, kerapu, lencam, kakap, and kurisi, the prices of which are higher than the average price. The fish products marketed in the local market / overseas are for example kerapu, cakalang and tuna. Fish products are always marketed in fresh form. Only julung-julung fish is marketed after it is processed by fumigation. Three kinds of fish are also exported they are kerapu, cakalang and tuna. The results of LQ calculation show that there are 12 species of fish with a value of LQ>1, namely: kuweh fish, kerapu, kerong-kerong, teri, tembang, julungjulung, tongkol, lemadang, cakalang, mackerel tuna and cucut. Based on the scoring analysis of commodities in terms of production continuity, production, pricing, processing, and marketing associated with the value of LQ, six kinds of fish as excellent commodities in North Halmahera Regency are cakalang, kerapu, anchovies, julung-julung, tuna, and tongkol. Flying fish, although its production is quite high and can be improved, has the value of LQ <1, so it can not be recommended as a superior fish species. Based on the results of the SWOT analysis, there are six government policies of North Halmahera regency related to the development of capture fisheries, increasing fishing fleet is a top priority followed by the development in the processing of captured fish. Both policies are closely related to labor absorption and economic improvement.
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Judul: Uji sifat listrik dan struktur kristal fotodioda ba0,5sr0,5tio3 dengan variasi pendadahan fe2O3
Abstrak: Ba0,5Sr0,5TiO3 (BST) thin film was doped by Ferium (Fe2O3) has been done with doping variation 2.5%, 5%, 7.5% and 10% above the substrate Si (100) p-type using chemical solution deposition (CSD) methods by spin coating technique at 3000 rpm for ± 30 seconds. Ba0,5Sr0,5TiO3 thin film made with 1 M concentration and the annealing temperature by 850oC. The results of current-voltage (I-V curves) characterization shows that the BST thin film and BFST are photodiodes. Electrical conductivity values BST and BFST thin films are in the range of semiconductor materials and obtain the electrical conductivity increased when the higher intensity light is used. The result of the dielectric constant increases with the addition of Fe2O3 doping. SEM results showed that the BST and BFST material is a thin film with thickness of the order 10-6 m. Result of XRD showed that BST and BFST is cubic.
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