Judul: Population dynamic of fine shrimp (Metapenaeus elegans De Man 1907) and its management on Segara Anakan Lagoon Cilacap Central Java
Abstrak: Penelitian dinamika populasi udang jari (Metapenaeus elegans) dan pengelolaannya dilakukan di perairan Segara Anakan, Cilacap, Jawa Tengah. Penelitian bertujuan untuk mengkaji aspek biologi reproduksi M. elegans dan distribusinya, tingkat eksploitasi, produksi maksimum berkelanjutan secara biologi (MSY) dan secara ekonomi (MSE) dan menyususn konsep pengelolaannya. Penelitian dilakukan sejak Februari sampai dengan Desember 2004, menggunakan metode survey deskriptif, dan pengambilan sampel menggunakan sistematik sampling. Berdasarkan aspek ekologi dan distribusi apong, daerah penelitian dibedakan menjadi tiga zona perairan, yaitu zona Barat, Tengah dan Timur. Pada setiap zona ditentukan tiga lokasi sampling., The research of population dynamic of fine shrimp (Metapenaeus elegans de Man 1907) and its management was held on Segara Anakan waters, Cilacap Central Java. This research aimed to study of the reproduction aspects of M. elegans and its distribution, eksploitation rate, maximum sustainable yield (MSY) and maximum sustainable of economic (MSE) and to arrange its management. This research was carried out since February to December 2004, using descriptive survey method and the sample collected by systematic sampling method. Based on ecological aspects and area was divided into three zone : the West, Central and East Zone.
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Judul: Keragaman genetik udang jari (Metapenaeus elegens de Man 1907) berdasarkan karakter morfometrik di Laguna Segara Anakan, Cilacap, Jawa Tengah
Abstrak: Penelitian ini dilakukan di perairan Laguna Segara Anakan, Cilacap, Jawa Tengah pada bulm Juni 2006. Tujuan penelitian ini adaIah untuk rnelihat keragaman genetik udang jari (M elegans) di perairan Laguna Segara Anakan berdasarkan karakier morfometrik. Hasil penelitian ini diharapkan akan memberikan informasi tentang keragaman genetika populasi udang jari di sepanjang perairan Segara Anakan dilihat dari penampilan fenotipnya, dasar bagi penelitian selanjutnya dan memberikan kontribusi terhadap perkembangan ilmu pengantar genetika populasi ikan. Selanjutnya, informasi tersebut dapat digunakan uniuk pengelolaan dan pelestarian sumberdaya udang jari (M. ebgans) di Laguna Segara Anakan.
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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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