Judul: Analisis Debit Puncak dan Aliran Permukaan DAS Ciliwung Hulu pada Bulan Januari 2014 (Studi Kasus: Bendung Katulampa)
Abstrak: Upper Cilliwung Watershed closely related to Jakarta flooding event. Water level in Katulampa dam reached 230 cm equal to discharge of 552 m3/second on 29 January 2014. It presumably because of countinuous rainfall all day with the intensity from low to high. The rain that continuously fell for few days caused the soil saturated so that the number of surface flow significant increased. The relation between the rainfalls in three observation stations which are Citeko, Gunung Mas, and Katulampa as well as average rainfalls and the discharge on Katulampa dam showed a correlation values of 0.87, 0.87, 0.83, and 0.87 respectively. It explains that rainfalls on three observation stations as well as average rainfalls affects the water level on Katulampa dam. The higher the rainfall in Upper Ciliwung Watershed, the higher the water level on Katulampa dam will be. The coefficient value of the surface flow on 12, 17, 21, and 29 of January 2014 are 20.7 %, 32.8 %, 37.7 %, and 33.8 % respectively.
Keyword: Bogor Agricultural University (IPB), Upper Ciliwung Watershed., rainfalls, runoff coefficient, Katulampa dam

Judul: Analisis Curah Hujan, Debit dan Tutupan Lahan di Sub DAS Ciliwung Hulu
Abstrak: Large floods that occurred in the Jakarta in 1996, 2002, 2007 and 2013 respect of Ciliwung watershed. Factors that cause flooding are basically two things that rainfall and land cover. The aim of study to analysis of frequency to predict the opportunity of maximum rainfall in one day, 2 days, and 3 days, as well as to analyze the maximum daily discharge in the return period of 5, 10, 25 and 50 years and to analysis change of land cover in Ciliwung up stream. The analysis result shows that the maximum rainfall in the period of 5, 10, 25 and 50 years are respectively 130 mm, 160 mm, 200 mm and 229 mm/day. While the opportunity of 2 day-maximum rainfall in the same return periods are 168 mm, 202 mm, 248 mm, and 283 mm respectively. The opportunity of 3 day maximum rainfall in the same return periods are 215 mm, 268 mm, 337 mm, and 389 mm respectively. The opportunity of maximum daily discharge in the return periods of 5, 10, 25 and 50 years are 470 m3/s; 565,5 m3/s; 703,4 m3/s, and 819,5 m3/s respectively. The minimum daily discharge in the same return periods are 1,4 m3/s; 1 m3/s; 0,7 m3/s; and 0,6 m3/s respectively.The average increase in the area woke up from 1996 to 2011 was 71.8 ha/year.
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Judul: Pengamatan Parasitoid Telur Scelio sp. (Hymenoptera: ...Scelionidae) pada Telur Oxya japonica Thunberg (Orthop--...tera:.Acrididae)
Abstrak: Oxya japonica adalah serangga hama yang bersifat polifag karena memiliki banyak kisaran inang. O. japonica termasuk serangga yang mudah berkembang dan hama ini sangat penting dan dapat merugikan sehingga perlu dilakukan alternatif pengendalian seperti pengendalian biologi. Musuh alami O. japonica yang banyak ditemukan adalah parasitoid telur Scelio sp. dari famili Scelionidae. Penelitian ini bertujuan untuk mempelajari beberapa aspek perkembangan parasitoid dan perilaku peletakan telur Scelio sp. pada telur O. japonica. Telur O. japonica dikumpulkan dari lapangan dan dilakukan pemeliharaan di laboratorium. Parasitoid diamati dan ditunggu hingga keluar dan meninggalkan inangnya. Telur Scelio sp. memiliki lebar 0.11 mm dan panjang 0.88 mm dengan tipe telur stalked. Larva instar awal memiliki lebar 0.21 mm dan panjang 0.67 mm dengan tipe larva teleaform dan memiliki mandibel pada bagian kepala. Larva instar akhir Scelio sp. bertipe hymenopteriform dengan lebar 1.18 mm dan panjang 2.82 mm. Lama perkembangan Scelio sp. dari telur hingga imago masing-masing 28.00 hari pada jantan dan 28.40 hari pada betina. Lama hidup imago jantan rata-rata 4.10 hari dan betina 5.10 hari. Telur Scelio sp. diletakkan ke dalam telur inang dengan menggunakan ovipositornya dan sebelum telur diletakkan, Scelio sp. masuk ke dalam lubang peneluran O. japonica dengan didahului masuknya abdomen.
Keyword: biologi, Oxya japonica, parasitoid, Scelio sp, Scelionidae