Judul: Studi Proses Fase Kehamilan dengan Perlakuan Suhu yang Berbeda pada Kuda Laut (Hippocampus kuda)
Abstrak: Kuda laut merupakan salah satu jenis ikan hias yang memiliki potensi untuk dimanfaatkan karena memiliki nilai ekonomis yang tinggi dan merupakan salah satu komoditas perikanan yang tergolong barn. Dipasaran intemasional, kuda laut selain diperjualbelikan dalam keadaan hidup yaitu sebagai ikan hias, dapat juga dipetjualbelikan dalam bentuk kering sebagai bahan obat-obatan tradisional untuk mengobati berbagai penyakit asma, impotensi, penyakit kulit, kolesterol, tenggorokan, limpa dan penyubur rambut.
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Judul: Respon Pertumbuhan Kuda Laut (Hippocampus kuda) terhadap Lama
Abstrak: Indonesia memiliki banyak sumberdaya perikanan yang menarik untuk diamati dan dieksploitasi. Salah satu dari sumberdaya itu adalah kuda laut (Hippocampus kuda) yang memiliki tingkah laku yang menarik dan memiliki banyak manfaat baik secara ekologi, yaitu terhadap lingkungan hidupnya maupun bagi manusia. Kuda laut dipercaya dapat menyembuhkan berbagai macam penyakit, seperti asma, arterosklerosis bahkan impotensi. Melihat manfaat ini, manusia pun melakukan eksploitasi besar-besaran terhadap jenis ini. Eksploitasi ini menyebabkan langkanya jenis ini ditemukan di alam bebas. Kurangnya informasi tentang biologi dasar hewan ini membatasi teknik pembesaran dan pemeliharaan yang berhasil, sehingga perlu diadakan suatu penelitian lebih lanjut mengenai tingkah laku kuda laut agar dapat dikembangkan suatu teknik pengembangbiakan dan pembesaran untuk konservasi jenis ini.
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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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