Judul: Produksi pendederan Ikan Ctenopoma (Ctenopoma acutirostre) pada padat tebar berbeda dengan pergantian air 15persen/hari
Abstrak: Dana Pensiun merupakan suatu badan hukum yang mengelola dan menjalankan program pensiun serta membayarkan manfaat pensiun untuk memberikan kesejahteraan kepada karyawan suatu perusahaan yang telah memasuki masa pensiun. Tujuan karya ilmiah ini ialah menghitung besarnya manfaat, iuran normal serta kewajiban aktuaria. Pada karya ilmiah ini dilakukan penghitungan dengan menggunakan metode Cost Prorate tipe Constant Percent. Metode Cost Prorate tipe Constant Percent ialah metode untuk menghitung nilai sekarang dari manfaat yang akan datang berdasarkan kumulatif gaji peserta dari pertama kali masuk hingga pensiun. Penghitungan dilakukan untuk pekerja laki- laki maupun pekerja perempuan pada usia 34 tahun, bergabung dalam program pensiun pada usia 23 tahun dengan asumsi pekerja tersebut pensiun di usia pensiun normal yaitu saat usia 56 tahun. Nilai sekarang manfaat pensiun, iuran normal serta kewajiban aktuaria bagi pekerja perempuan setiap tahunnya lebih besar dibandingkan pekerja laki-laki….
Keyword: Ctenopoma, Demand, Market, Production, Stocking density, Fish market, Ctenopoma fish, Fish production, Efisiensi pakan, Fish feeding

Judul: Produksi Pendederan Ikan Ctenopoma Ctenopoma acutirostre Pada Padat Tebar Berbeda Dan Pergantian Air 30%.
Abstrak: This study aimed to determine the optimal stocking density on fish nursery ctenopoma at size of 2 cm and 30% water changes every day. The treatment in the study was 4 levels of fish stocking densities, ie 2, 4, 6 and 8 fish/liter and quality of the culture media was maintained by replacing the water as much as 30%. Fish reared in 12 aquariums filled with 10.5 liters of fresh water respectivelly and as long 40 days period. The average length of fish seed used was 2.18±0.18 cm. During the rearing, the fish fed with tubificid worm in the morning, noon and night. The results showed that the difference of the treatment did not affect the survival and the coefficient of variance, however increasing the stocking density flollowed by lowering the growth rate, and the feed efficiency. Considering economic value, the highest rearing productivity was achieved by stocking density of 6 fish/liter.
Keyword: Ctenopoma, Production, Stocking density, Water exchange

Judul: Analisis Biomolekuler Gen Internal Transcribed Spacer (ITS) dalam Studi Filogenetik Zingiber loerzingii Valeton (Zingiberaceae)
Abstrak: Zingiberaceae consists of 50 genera and 1400 species distributed in tropical and subtropical areas. The center of the diversity of Zingiberaceae is South Asia and Southeast Asia. Zingiber loerzingii is only found in Sumatera. Unlike other species, this species has not been well studied so the information is still limited, whereas the clarity of plant identity is very crucial. The present study was aimed to determine phylogenetic relationship of Zingiber loerzingii and its relative based on the Internal Transcribed Spacer (ITS) gene. DNA sample was isolated using cetyltrimethylammonium bromide based method of Doyle & Doyle modification. Amplification of ITS region resulted in ± 700 bp amplicon. Sequencing of ITS region of Zingiber loerzingii produced 813 bp DNA sequences that has high rate of evolution. Recontruction of phylogenetic tree was analysed using the Phylogenetic Analysis Using Parsimony program. The results of phylogenetic analysis showed that the genus of Zingiber formed a clade with bootstrap value of 61.9%. The clade consisted of two clades, clade I with bootstrap 62% and clade II with bootstrap 70.8%. Therefore, we conclude that the genus Zingiber is possibly monophyletic. Zingiber loerzingii is nested in clade I with the nearest or sister taxa: Zingiber rubens, Zingiber orbiculatum dan Zingiber fragile.
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