Judul: Marketing of Milkfish in Kalitengah Subdistrict Lamongan Regency.
Abstrak: Ikan bandeng merupakan produk unggulan di Kecamatan Kalitengah Kabupaten Lamongan. Namun demikian, harga ikan bandeng yang diterima petani rendah dan memiliki marjin yang cukup besar antara harga di tingkat petani dan konsumen, hal ini mengindikasikan adanya pemasaran yang tidak efisien. Selain itu ikan bandeng memiliki sifat mudah rusak sehingga dalam proses pemasaran membutuhkan penanganan lebih. Penelitian ini bertujuan untuk mengkaji saluran, lembaga dan fungsi pemasaran, serta efisiensi pemasaran. Data dikumpulkan dari 42 petani ikan bandeng, 15 pengumpul lokal, 7 pedagang besar, 7 pedagang pengecer besar, 15 pedagang pengecer kecil. Penentuan petani responden berdasarkan metode systematic sampling dan metode snowball sampling untuk lembaga pemasaran yang terlibat. Hasil penelitian menunjukkan bahwa terdapat 8 saluran pemasaran dimana saluran pemasaran 6 (petani dan pedagang pengecer besar) merupakan saluran yang relatif efisien karena memiliki margin pemasaran terkecil, farmer’s share paling besar, rasio keuntungan terhadap biaya yang menyebar secara merata, dan market share yang kecil.
Keyword: Bogor Agricultural University, Institut Pertanian Bogor, IPB, Marketing Agencies, Marketing Channel, Marketing Efficiency, Marketing Function, Milkfish, Snowball sampling, Marketing institution, Systematic sampling, Small marked share

Judul: Analisis Efisiensi Pemasaran Ikan Bandeng di Kecamatan Tirtajaya Kabupaten Karawang
Abstrak: Kabupaten Karawang merupakan sentra produksi ikan bandeng di Jawa Barat. Produksi ikan bandeng terus meningkat, namun harga ikan bandeng berfluktuasi. Fluktuasi harga menyebabkan ketidakpastian pendapatan baik bagi petani sebagai produsen maupun pedagang sebagai lembaga pemasaran. Fluktuasi harga sangat erat kaitannya dengan sistem pemasaran. Tujuan penelitian ini adalah mengetahui sistem pemasaran dan efisiensi pemasaran ikan bandeng di Kecamatan Tirtajaya Kabupaten Karawang. Hasil penelitian menunjukkan bahwa terdapat enam saluran pemasaran ikan bandeng di Kecamatan Tirtajaya, Kabupaten Karawang. Lembaga pemasaran yang terlibat didalamnya antara lain petani, pedagang pengumpul desa, pedagang besar, pedagang pengecer dan pengolah. Dilihat dari nilai marjin pemasaran dan farmer’s share, seluruh saluran pemasaran ikan bandeng sudah efisien. Dari seluruh saluran pemasaran, saluran pemasaran 1 merupakan saluran yang relatif lebih efisien dengan nilai marjin terendah sebesar 9.71 persen dan farmer’s share tertinggi sebesar 90.29 persen. Nilai rasio keuntungan atas biaya pada seluruh lembaga pemasaran telah menyebar secara merata.
Keyword: milkfish, marketing efficiency, marketing margin

Judul: Thermal Characteristics and Dynamics of Tropical Cyclone over Western North Pacific Ocean: A Case Study of Typhoon Songda (Chedeng) 2011
Abstrak: The frequent occasion of Tropical Cyclone (TC) over Western North Pacific (WNP) Ocean lies from 10˚N to 26˚N and 121˚E to 170˚E. Sources of TC development come from warm ocean temperature where latent heat is released during condensation processes and subsequently concentrated in the boundary layer. Relative humidity at 850-700 hPa is responsible to produce the most intense storm. Meanwhile, weak vertical wind shear between 850-200 hPa is one of the dynamical factors that lead to the development of TC. Pressure level of 850-200 hPa is chosen to minimize the thermodynamic effect in the lower troposphere. Typhoon Songda (Chedeng in the Philippines) or TSC lasted from May 18th to 30th, 2011 and strengthened into powerful Super Typhoon stage between May 24th and 27th. Long curving track and the exhibition of all sequences of TC life cycle, TSC is then considered as an ideal case of TC. The objective of the study with case of TSC is to investigate the role of thermal characteristics and dynamics on TC intensity. The research is carried out by using Advanced Research of Weather Research and Forecasting model (WRF ARW model) version 3.3. Two domains are employed in the model. The first domain situate from 02˚N to 40˚N and 118˚E to 149˚E and cover spatial resolution () of 33.1 km. The second domain situate from 09˚N to 27˚N and 119˚E to 132˚E with of 11 km. Timestep of the model () is 120 seconds. The model is supported by the following physical parameterization, i.e., Yonsei University Scheme (YSU) in the boundary layer, Kain-Fritsch scheme (KF) in the cumulus, and WRF Single-Moment 3-class scheme in the microphysics. Initial meteorological condition prior to the formation of the cyclone is generated using WRF ARW standard-release model. Sensitivity of the model output is obtained from a selected single-parameter change scenarios, namely, 10 % to 20 % decrease and increase of wind shear initial data at 850-200 hPa, and by 10 % to 20 % decrease of relative humidity initial data at 850-700 hPa. The result showed that the negative correlations between wind shear and intensity are found in wind shear scenarios. Wind shears of 10 ms-1 which lead to strengthening of the wind intensity in the early period of Typhoon development are found in wind shear scenarios. The effect of wind shear changes on wind intensity is statistically significant in the 20 % wind shear scenarios. During mature stage, weak wind intensity occurred when wind shear increase as given in the WRF standard-release and the 20 % decreasing scenario. Different situation is found in the 20 % increasing scenario where wind shear tend to weak and lead to strong wind intensity at this stage. Meanwhile, the reduction of moisture supply at 850-700 hPa resulting from 20 % decreasing relative humidity play a major role in the weakening of wind intensity and reduces mechanical energy of the cycle process as much as 300 J kg-1.
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