Judul: Sistem Pemasaran Ikan Lele Konsumsi di Kecamatan Parung, Kabupaten Bogor
Abstrak: Kabupaten Bogor merupakan sentra produksi ikan lele di Jawa Barat. Produksi ikan lele meningkat setiap tahun namun peningkatan tersebut tidak signifikan dengan peningkatan harga di tingkat pembudidaya sehingga penerimaan di tingkat pembudidaya dirasa kurang adil. Hal ini erat kaitannya dengan sistem pemasaran. Tujuan penelitian ini adalah menganalisis sistem pemasaran dan efisiensi pemasaran ikan lele konsumsi di Kecamatan Parung, Kabupaten Bogor. Hasil penelitian menunjukkan bahwa terdapat lima saluran pemasaran ikan lele konsumsi di Kecamatan Parung, Kabupaten Bogor. Berdasarkan nilai marjin pemasaran, farmer’s share, dan rasio keuntungan atas biaya seluruh saluran pemasaran ikan lele konsumsi di Kecamatan Parung sudah efisien. Namun pembudidaya ikan lele tidak memiliki alternatif saluran pemasaran karena seluruh pembudidaya menjual hasil panennya kepada pedagang pengumpul desa. Saluran 4 relatif lebih efisien untuk ikan lele ukuran sedang dengan nilai margin pemasaran terendah sebesar 17.8 persen dan farmer’s share tertinggi sebesar 82.1 persen.
Keyword: efisiensi pemasaran, ikan lele, marjin pemasaran

Judul: Pemetaan Pemasaran Produk Perikanan di Pasar Leuwiliang, Kecamatan Leuwiliang, Kabupaten Bogor
Abstrak: Kabupaten Bogor merupakan wilayah potensial untuk memasarakan produk perikanan dengan tersedianya prasarana pasar yang berjumlah 23 buah, ditambah lagai dengan meningkatnya tingkat konsumsi ikan per kapita penduduknya pada tahun 1996-1997 sebesar 0,25 kg dan cenderung mengalami peningkatan dari tahun ke tahun. Di sisi lain produksi ikan konsumsi di kabupaten Bogor pada tahun 1997-1998 mengalami penurunan sebesar 2.522 ton atau sebesar 32,32 % sehingga untuk menutupi kebutuhan tersebut maka kebutuhan ikan konsumsi penduduk Kabupaten Bogor didatangkan dari daerah lain. Pasar Leuwiliang adalah pasar eceran yang menjual ikan mas, ikan asin dan ikan pindang yang didatangkan dari daerah lain.
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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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