Judul: Persistensi Cacing Endoparasit Gnathostoma Sp. Pada Belut Sawah Monopterus Albus Dan Pengendaliannya Menggunakan Mebendazole Dan Ekstrak Batang Pisang Ambon Musa Paradisiaca
Abstrak: Belut merupakan ikan konsumsi air tawar yang memiliki nilai gizi baik, namun belut menjadi inang antara cacing Gnathostoma sp. yang bersifat zoonosis, sehingga dapat menimbulkan masalah pada konsumen. Penelitian ini bertujuan menginventarisasi keberadaan cacing Gnathostoma sp. pada belut sawah di Jawa Barat dan mencari konsentrasi yang tepat dalam mengendalikan cacing Gnathostoma sp. menggunakan mebendazole 500 mg dan ekstrak batang pisang ambon melalui metode perendaman. Perendaman cacing secara in vitro, baik dalam larutan mebendazole maupun ekstrak batang pisang ambon menunjukkan bahwa semakin tinggi konsentrasi larutan maka kematian cacing semakin cepat. Hasil penelitian menunjukkan perendaman secara in vitro menggunakan bahan aktif mebendazole mengakibatkan kematian lebih cepat yaitu 2-3 hari dan ekstrak batang pisang ambon 6-7 hari, sedangkan perendaman dalam larutan fisiologis (tanpa pemberian mebendazole dan ekstrak batang pisang ambon) cacing mati 11- 12 hari.
Keyword: Belut sawah, Gnathostoma sp, in vitro, mebendazole, Musa paradisiaca

Judul: Efektivitas ekstrak batang Pisang Ambon Musa paradisiaca untuk pengendalian infeksi Saprolegnia sp. pada larva Ikan Gurame Osphronemus gouramy
Abstrak: Fase larva ikan gurame merupakan masa kritis terhadap infeksi cendawan, seperti cendawan jenis Saprolegnia sp. Beberapa tanaman memiliki daya antiseptik seperti tanaman pisang ambon. Penelitian ini bertujuan untuk menguji efektivitas ekstrak batang pisang ambon (Musa paradisiaca) dalam mengurangi infeksi Saprolegnia sp. pada larva ikan gurame (Osphronemus gouramy) melalui media pemeliharaan. Larva gurame umur 8 hari (panjang larva 0,5+0,03 cm) dipelihara pada akuarium berukuran 25x25x25 cm dengan padat tebar 8 ekor/L. Media pemeliharaan diberi ekstrak batang pisang ambon dosis 0; 0,08; 0,12 dan 0,16 g/L selama 25 hari. Uji tantang dilakukan selama 14 hari dengan pemberian spora Saprolegnia sp. kepadatan 104 sel/mL dan tetap diberi ekstrak batang pisang ambon selama masa uji tantang berlangsung. Perlakuan dosis 0,16 g/L memberikan kelangsungan hidup sebesar 100% yang lebih tinggi dibandingkan perlakuan kontrol positif setelah uji tantang., Larvae stage of giant gouramy is a critical period due to fungal infection, like Saprolegnia sp infection. There are some plants have antiseptic compound like banana (Musa paradisiaca). This research aims to examine the effectiveness of the banana stem extract (Musa paradisiaca) to reduce the infection of Saprolegnia sp. on giant gouramy larvae through immersion. Eight-day old gouramy larvae (0.5±0.03 cm length) were reared in an aquarium measuring 25x25x25 cm with density 8 fry/L. Rearing media were given banana stem extract 0; 0,08; 0,12; and 0,16 g/L doses during 25 days. Challenge test performed during 14 days which infection of Saprolegnia sp. with spore density 104 cells/mL given and still given banana stem extract during chalange test. The treatment dose of 4% gives 100% survival at the higher compared positive control after the challenge test.
Keyword: Osphronemus gouramy, Musa paradisiaca, Saprolegnia sp., larva

Judul: Utilization of terra/MODIS L1B data for analysis of horizontal wind profile in the troposphere
Abstrak: This study was concerned with horizontal wind derived from data collected with the Moderate-resolution Imaging Spectroradiometer (MODIS) on board the NASA’s Earth Observation System (EOS)-Terra satellite. The aim of this study is to develop a method for the estimation of horizontal wind movement in the troposphere based on Navier-Stokes equation. The method was applied to a calibrated and geolocated Terra/MODIS L1B 1 km data set. The data inputs to estimate surface temperature are retrieved from TIR (Thermal Infrared) bands 31 (10.780 μm to 11.280 μm) and 32 (11.770 μm to 12.270 μm). The obtained surface temperatures were later used to approximate geopotential height on a constant-pressure surface by using the modified Poisson equation. The main assumptions used are the hydrostatic equilibrium, ideal gas law, constant lapse rate and constant acceleration of gravity. Based on the distribution of geopotential height, the pressure gradient force is measured by the gradient of geopotential on an isobaric coordinate to present the horizontal wind profile. For certain topographic areas especially in the mountain ranges, there was a disadvantage of using pressure as a vertical coordinate which lead to inaccuracy. In spite of that, Terra/MODIS L1B data with 1 km spatial resolution can be used to estimate the horizontal wind movement in the troposphere.
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