Judul: Study of natural fisheries management as complement of reservoir utilization for cage aquaculture (case study cirata reservoir)
Abstrak: Keberadaan keramba jaring apung di Waduk Cirata sangat mempengaruhi segala aktivitas di sekitarnya, baik dari segi ekologi, maupun ekonomi masyarakat yang berada di waduk. Keramba jaring apung adalah suatu bentuk budidaya ikan yang mmeberikan kemudahan bagi masyarakat yang ingin membudidayakan ikan tanpa harus mempunyai lahan diantara kemudahan tersebut terdapat sederetan efek yang ditimbulkan oleh keramba jaring apung jika tidak ditangani dengan baik. Diantaranya jumlah yang melampaui daya dukung kapasitas perairan, kualitas perairan yang menurun akan mempengaruhi daya tampung ikan yang berada di luar keramba jaring apung akan menyebabkan terjadinya pendangkalan akibat sisa pakan yang mengendap di dasar perairan.
Keyword: carrying capacity, Cirata reservoirs, natural fishery

Judul: Rancang bangun model pengelolaan waduk berkelanjutan berbasis perikanan budidaya karamba jaring apung (kasus waduk Cirata Jawa Barat)
Abstrak: The research of the sustainable management model’s design of Reservoir Fisheries floating cage (Reservoir Case Cirata, West Java) aims to calculate the carrying capacity, make its institutional model, build dynamic system model and assess the sustainability of the reservoir management of floating cage based aquaculture in Cirata Reservoir. The calculation of the pollution load and capacity of assimilation is used to calculate its carrying capacity and Interpretative Structural Modeling (ISM) is used to create institutional. Furthermore, Powersim software is used to create dynamic models and Rapfish used to assess the status of sustainability in the management of Cirata Reservoir. This study shows the status of water quality in Cirata reservoir has been low into high polluted (based on water quality classification class B PP 82-year-2001), the carrying capacity of the reservoir parameters in Cirata based on TSS, BOD, COD, PO4, NO3, NO2, Fe, Cd, Zn, and Mn parameter have passed the threshold of the standard quality of water in the river. The ideal reservoir management involves the central government (Ministry of Forestry), Cirata Reservoir Management Agency, Department of Fisheries and Marine West Java Province and the Ministry of Fisheries and Marine. The population growth is the factor of problem in the utilization of Cirata Reservoir. The problem follows the basic pattern of boundary dynamic model for success, tragedy of the common and shifting of the burden, with the dominant building block is reinforcing. The increased activity of the population (KJA, industry, agriculture, livestock, forest encroachment) increased sedimentation and pollution balance the functions of ecological, economic and socio-cultural. Ecology aspect is the weakest aspect in the sustainable management of Cirata Reservoir. Socio-cultural aspect is the dominant aspect as a major capital in the intervention of four other aspects. (economic, legal-institutional, technology / infrastructure and ecology).
Keyword: 

Judul: Sintesis α-Fe2O3 menggunakan metode sol gel
Abstrak: In this reseach was succeeded make powder α-Fe2O3 with particle size 202.64 nm. Synthesis using Sol-Gel method with SiO2 coating derived from Si(OC2H5)4 at temperature of 750 oC for 5 hours. Characterization XRD prove that sample form is α-Fe2O3 (11 peaks) and β-Fe2O3 (2 peaks) with crystal size 20.69125 nm and crystallization 44 %. The cystal structure of α-Fe2O3 is rhombohedral and β-Fe2O3 is hexsagonal. Optic characterization show that the sample absorbing light at wavelength less than 480 nm. Bandgap energy of the optical characterization measurments is 2.74 eV.
Keyword: α-Fe2O3, annealing, bandgap energy, sol-gel, crystal structure.