Judul: Land Use Change Analysis and Land Use Direction in Mount Merbabu National Park and its Buffer Zone
Abstrak: Mount Merbabu National Park is one of conservation area in Indonesia with ecological-overstress condition caused by population pressure. Forest land cover in that area only remains 30% and the rate of deforestion reaches 3% per year. Land use changes that occur indicate ecosystem changes that threaten the ecological function of the area. This study has four main objectives, that include the following : (1) to analyze land use changes in mount Merbabu national park and its buffer zone period of 2001-2013, (2) to analyze land suitability based on land physical properties, (3) to predict land use for the next 12 years, (4) to formulate scenarios wich can control land use changes. Primary data in this research is Landsat-7 image in 2001 and Landsat-8 image in 2013. The land use prediction model by the 2025 is Cellular Automata Markov method, that base on land suitability scenario. The results showed that there are seven main types of land use in the Mount Merbabu National Park and its buffer zone : forest, settlement, field, grass, shrub, unutilzed land and crop mix. Land use changes that occurred in the period 2001-2013 is the decline of forest, grass and crop mix, followed by the increase of shrub, settlement and field. The rate of deforestation in this period is 2,29% or 87 ha/ year . The prediction results showed that land use changes in the period of 2013-2025 has similar pattern with the 2001-2013 period. Forest decline is predicted to continue in all zones of the National Park. Settlement, field and shrub are disposed to increase, while forest, grass and crop mix are disposed to decrease. Scenarios to control land use changes in the National Park (TN) is directed to increase forest cover. There are two scenarios were formulated, first scenario assuming TN managers not allowing farming and settlement activities in the area of TN. Second scenario assuming TN managers implement zoning policies of TN Plan. The results showed that the first scenario predicted to increase forest cover and restrain deforestation.
Keyword: forest, land use, mount Merbabu, national park, prediction

Judul: Analisis perubahan penggunaan/penutupan lahan di area cagar biosfer cibodas dalam mendukung keberadaan Taman Nasional Gunung Gede Pangrango
Abstrak: An increasing number of population caused land use/land cover change in Cibodas Biosphere Reserve. One of the approach to rapidly assess land use conversion is by using remote sensing technology. Therefore, the purposes of this study are : (1) to analyze land use/land cover change in 1999 and 2011 and the factor that affecting land use/land cover changes; (2) to identify people preference about land use/land cover change that can be tolerated; (3) predicting land use/land cover allocation approach with Cellular Automata (CA) and (4) to conduct controlling scenario land use/land cover changes in the Cibodas Biosphere Reserve that can support the sustainability of Mount Gede Pangrango National Park. The result showed the form of land use in 1999 was dominated by dry field and mixed farms, amounting to 44.25% and in 2011 the dominance of dry field and mixed farms was reduced to 38.16% accompanied with an increase in settlements from 16.19% to 20.41%. Based on AHP result, land use/land cover change is caused by population growth, source of income, slope, elevation and soil type. Land use/land cover change that can be tolerated by society is changing forests into dry field and mixed farms which have a value of 0.249 or 24.9%, and from dry field and mixed farms to residential with a value of 0.206 or 20.6%. Landuse prediction in 2023 show that dry field and mixed farm is 34,34 %, forest 30.97%, settlements 23.39%, fields 11.14%, edelweis 0.08%, grass / shrub 0.05% and 0.03% of water bodies. There is three scenarios to control land use/land cover change in Cibodas Biosphere Reserve
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Judul: Reproduksi Ikan "Shirogisu" Sillago japonica (Temminck dan Schlegel) di Perairan Teluk Omura, Nagasaki, Jepang
Abstrak: Ikan S. japonica pertama kali matang gonad pada ukuran kelas panjang 185 - 198 mm dan frekuensi terbesar pada ikan jantan pada selang kelas rata-rata 220 mm (100 %) dan ikan betina pada selang kelas rata-rata 234 mm (100 %). Melalui histologi gonad ikan betina, pada TKG II terdapat sel oogonia dimana sel telur belum matang (perinucleolus) yaitu inti sel mulai membesar dan membran sel yang tebal. Pada TKG III, sel telur berkembang menjadi oocyte primer dan kemudian menjadi oocyte sekunder dimana sel telur telah matang (ripe eggs), butiran kuning telur telah terbentuk dan membran sel mulai menipis. Pada TKG IV, sel telur berkembang menjadi ootid, dimana terjadinya penyatuan butiran kuning telur yang menuju salah satu kutub anima (Fusion of yolk globule) dan terdapat membran sel yang menipis pada sel telur yang matang (Oolema of ripe eggs). Pada TKG V, sel telur berkembang menjadi ovum yang akan dikeluarkan pada saat pemijahan, mulai berkurangnya ootid dan terdapat folikel yang kosong. Sedangkan pada testes ikan jantan, TKG I ditunjukkan adanya sel spermatogonia yang berada di dalam kantung tubulus seminifer. Pada TKG I1 sel berkembang menjadi sel spermatogonia. Pada TKG III sel spermatogonia berkembang menjadi spermatocytes primer dimana terjadi pembelahan sel secara miosis (pembelahan pertama) dan kemudian berkembang menjadi spermatocytes sekunder dimana terjadi pembelahan sel yang kedua. Pada TKG IV sel spermatocytes berkembang menjadi sel spermatid, dan pada TKG V sel spermatid herkembang menjadi spermatozoa yang akan dikeluarkan pada saat pemijahan.
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