Judul: Bioecological of Mud Crabs (Scyllaspp.) in mangrove ekosistem of Subang Regency, West Java
Abstrak: The aim of the research was to collect data and information concerning population structure, reproduction performance, reproduction potency, evaluation of eyestalk ablation and distribution of mud crabs based on the characteristics of their environment habitat. The research was carried out since January 2005 to August 2006. Observation on the morphology and anatomy used descriptive method. The ecological aspect was done in situ using line plot transect method. In the meantime, the aspect of biological reproduction was carried out through a controlled seed experiment in pond and laboratory with treatment of eyestalk ablation. Exploration of eyestalk tissue of mud crabs was performed with the method of histochemistry to assure the success of ablation. The result showed that not only the morphology of different mud crab species but also the morphology and anatomy of crabs with different sexes. The mud crabs from different research stations indicated differences in terms of the population rate. The width of the carapace and minimum and maximum weight of mud crabs caught were different from one species to another.
Keyword: pupulation structure, reproduction performance, reproduction potency, distribution of mud crabs, West Java

Judul: Management of mud crab (Scylla olivacea) at mangrove ecosystem in coastal subdistrict East Sinjai, Sinjai Regency, South Sulawesi.
Abstrak: Sinjai Subdistrict is one of the coastal district area located in Sinjai Regency, South Sulawesi. The region has a fairly extensive mangrove and crab potential of 62,36 tonnes in 2010 for local and export market. The objectives of this research were 1) to identify mangrove ecosystem status in Tongke-tongke and Samataring villanges, 2) to identify bioecological status resource of mud crab (S. olivacea) in the Tonngke-tongke and Samataring villanges, 3) Formulate management strategy of the mud crab to ensure the sustainability of its utilization. The data was collected since February to May 2010. Mud crab’s bioecology status was analyzed using by calculating the growth parameters and prediction of the mortality and exploitation rate of the mud crab using FISAT II software programme. Sustainability analysis was done by using multidimensional scalling approach of Rapfish method. Result of the study show mangrove density both of location was very good, which was between 4.925-9.667 tree/ha. Explotation rate status of the mud crab was exceed the optimum limit but still slight below the allowed of exploitation which was between 0,75-0,81/year. The results obtained for the management of the four dimensions which is value of ecological status that sustainable in management was 50,06% and, while in the value of economic social and institutional dimension status which was less sustainable in management were 49,00%, 30,23% and 40,84%, respectively.
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Judul: Katalis Zink Ferit Tersubstitusi Cu untuk Oksidasi Benzil Alkohol
Abstrak: Katalis berperan dalam menurunkan energi aktivasi. Katalis ZnFe2O4 dan ZnFe2O4 tersubstitusi Cu disintesis menggunakan metode kopresipitasi untuk digunakan dalam oksidasi benzil alkohol. Katalis dicirikan dengan spektrofotometer inframerah (FTIR) dan difraktometer sinar-X. Spektrum FTIR menunjukkan puncak serapan dari ikatan Zn-O dan Fe-O masing-masing pada rentang 559‒575 cm-1 dan 419‒447 cm-1. Difraktogram menunjukkan terbentuknya fase tunggal Zn0.6Cu0.4Fe2O4 pada katalis ZnFe2O4 tersubstitusi Cu 20%. Benzil alkohol dioksidasi dengan sistem refluks. Konversi benzil alkohol meningkat dengan meningkatnya suhu. Kadar benzaldehida yang dihasilkan dengan katalis ZnFe2O4 tersubstitusi Cu 20% lebih tinggi dibandingkan dengan katalis ZnFe2O4 yang tidak tersubstitusi dan yang tersubstitusi Cu 60 dan 80%. Hal tersebut menunjukkan bahwa katalis ZnFe2O4 tersubstitusi Cu 20% memiliki kinerja yang lebih baik dalam oksidasi benzil alkohol menjadi benzaldehida dengan kadar benzaldehida 8.763%.
Keyword: Benzil alkohol, katalis, oksidasi, ZnFe2O4