Judul: Pengaruh Perubahan Tutupan Lahan terhadap Perubahan Iklim Wilayah (Studi Kasus: Kota Jambi dan Kabupaten Kerinci)
Abstrak: Regional climate change can be known from maximun and minimum temperature over the last few years. Jambi city is a growing area with more rapid development than Kerinci regency, and therefore contributes to changes in LULC. LULC analysis by using Landsat TM and ETM images in 1996 and 2006. Changes of LULC to building increase about 11% over the last 10 years. On the other hand, in Kerinci regency primary forest decreases by 4%, farm decreases by and 1%, and mix plantation decreases by 5%. Based on Mann Kendall Test maximum temperature increase significantly within 30 years with rate 0.048oC/year in Jambi city and 0.037oC/year in Kerinci regency, but there was no trend in minimum temperature in Jambi city. There is a decrease in minimum temperature in kerinci regency. Model projections show an increase in maximum and minimum temperature trends for the short-term and long-term future in Jambi city and Kerinci regency. However the model were not good enough to describe condition of study area, with R2 values below 50% and small RMSE.
Keyword: climate change, Mann Kendall Test, LULC, Jambi

Judul: Pemanfaatan Citra Landsat 7+ETM untuk Analisis Neraca Energi pada Beberapa Jenis Tutupan Lahan di Provinsi Jambi
Abstrak: Landuse change has occurred in Jambi province. Forest changed into others land formation has effect for microclimate regions. This research is to estimate the character of albedo, energy balance and temperature in several landuse types in Jambi by using Landsat 7+ETM image. Vegetation density affects energy and radiationon balance. Area with high vegetation density has low albedo because coming radiation is trapped between vegetation canopies. Area with high density like forest and national park has a high net radiation. Proportion of energy balance is strongly influenced by land cover characters. Vegetations with high density has highest proportion of evaporation heat flux more than low density. Area with high vegetation density and high humidity cause low temperature. Either vegetation density, temperature is influence by altitude and surface character in receiving radiation.
Keyword: radiation balance, landuse change, Landsat 7+ETM, Energy balance

Judul: Kolonisasi dan proliferasi sel testikular ikan nila putih yang ditransplantasikan ke ikan nila hitam triploid
Abstrak: The technology of fish testicular cells transplantation had been established to create a surrogate broodstock. This technology can also be utilized to generate YY-progenies that are useful to produce all-male fish. In this study, as a first step towards all-male tilapia production, white Nile tilapia testicular cells was transplanted into peritoneal cavity of triploid black tilapia larvae. A specific primer was designed to identify colonization and proliferation of transplanted cells in recipient fish using PCR method. Analysis of gonadosomatic index (GSI) was also performed to determine the transplanted cells proliferation in recipient gonad. The result of PCR analysis showed a specific DNA amplification product in the gonad of transplanted fish. The specific DNA donor was detected on the recipient gonad 90 dpt (days post transplantation) and it was not detected on 30 and 60 dpt. The GSI analysis showed that GSI recipient was increased and relatively similar with diploid non-transplanted Nile tilapia and it was higher than triploid non-transplanted Nile tilapia. These results showed that the donor cell could be colonized and proliferated in triploid black tilapia gonad. Thus, it is likely to obtain a broodstock that is able to produce donor-derived gamete in the near future.
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