Judul: Studi Pendeteksian Mangrove Menggunakan Citra Radarsat di Daerah Benoa, Bali
Abstrak: Tujuan utama studi ini adalah untuk mengidentifikasi ekosistem mangrove dengan menggunakan citra penginderaan jauh RADAR, yakni Radarsat. Kedua citra Radarsat yang digunakan direkam pada mode fine 4 dalam bentuk path image (SGF) dengan sistem penyimpanan (sample bits) sebesar 16 bit. Sebagai acuan dalam mengenali objek-objek tersebut digunakan citra Landsat TM (Thematic Mapper) karena citra Landsat TM sudah sangat familiar digunakan dalam identifikasi objek mangrove.
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Judul: Pemetaan Vegetasi Mangrove di Cilacap Jawa Tengah dengan Menggunakan Citra Landsat ETM+ dan OLI TIRS
Abstrak: Mangrove forests in Indonesia has declining, and so it preservation efforts are required. One way of mangrove forest is the used of satellite remote sensing technology. The aim of this study were to examine the ability of Landsat satellite imagery (Landsat 7 ETM + 8 OLI Tirs) in detecting mangrove using vegetation index (NDVI), and to measured IVI (Importance Value Index) of mangrove community in Cilacap, Central Java. Field assessment on mangrove was focused in measuring density, identifying species and zonation according to haphazard sampling in 10 sites. Landsat imagery were able to map and classified mangroves in Cilacap according to three different class; dense, medium, and sparse mangrove. Results of IVI (Importance Value Index) calculations revealed the ecological importance of Rhizhopora apiculata and Ceriops sp. in the mangrove community of Segara Anakan, Cilacap.
Keyword: Bogor Agricultural University (IPB), Supervised Classification, NDVI, Mangroves, Landsat Satellite, Cilacap

Judul: Evaluation of Influenza Antibody Titers in Serum and Egg Yolk of Layers Vaccinated with Influenza Vaccines.
Abstrak: Influenza belongs to the Orthomyxoviridae family which causes upper and lower respiratory tract infection. The aim of this study was to evaluate influenza-A specific antibody titers from serum and egg yolk of hens vaccinated with quadrivalent influenza vaccines. Three Hy-line Brown layers were vaccinated with quadrivalent influenza type A and B inactivated vaccines. Vaccination was carried out three times at a dose of 0.25 ml/chicken via the intramuscular route. The first vaccination was carried out at 24 weeks of age, then boosters were performed at 28 and 32 weeks of age. Serum and egg yolk were collected every week for 20 weeks since the first vaccination. Influenza A H3N2 and H1N1 antibody titers were determined using hemagglutination-inhibition (HI) test and agar-gel-precipitation (AGP) test. Influenza-A H3N2 and H1N1 specific antibodies were detected in both serum and egg yolk from the first to twenty weeks after the initial vaccination. Highest HI geometric mean titer (GMT) of H1N1 antibody reached 26.67 HIU at nine weeks post first vaccination (p.f.v), while H3N2 antibody reached 26 HIU at six weeks p.f.v. Our result showed that influenza antibodies can be produced in layers using quadrivalent vaccines and layer chickens are able to produce equivalent antibody levels for each influenza subtype.
Keyword: antibody, egg yolk, influenza, layer chickens, serum