Judul: DNA Barcoding dan Rekonstruksi Filogenetik Spesies Hiu yang Didaratkan di Pelabuhan Perikanan Pantai Muncar, Banyuwangi, Jawa Timur
Abstrak: Sharks are one of a fisheries commodity that are exploited on a large scale because of their very high economic value. The identification of sharks is very problematic, because specimens has similarity in morphology and mostly have had key diagnostic features removed. This study aimed to identify and to review the status of sharks landed in Muncar Fisheries Landing Site and see the trend of catches in 2012 to 2013, and also to reconstruct the shark species that were landed at South Java fishing port using molecular approaches. The DNA amplification was using Cytochrome Oxidase I locus mitochondrial. A total of 7 species was identified including Alopias pelagicus, Carcharhinus falciformis, C. sorrah, C. amblyrhynchos, Galeocardo Cuvier, Atelomycterus marmoratus, and Spyrna lewini. The diversity of shark species that landed in Muncar during the last 2 years has been decreased. The identified sharks species in this study sites were about 18% of all Indonesian sharks. The result of this study is expected help the Government to manage shark fisheries in Indonesia
Keyword: Muncar, Conservation, Phylogenetic, DNA barcoding, Sharks

Judul: DNA Barcoding dan Analisis Filogenetik Ikan Hiu yang Didaratkan di Pelabuhan Perikanan Samudera Cilacap
Abstrak: Indonesian waters are known to be lived by more than 75 species of shark. Most shark species are now being caught and traded for their body parts, including their fins, liver oil, meat, bones, skin, and eyes. However, trade data on shark in Indonesia is very lack. The identification of a shark fin to species level is very problematic, as morphologically similar species and specimens, which are poorly preserved or have had key diagnostic features removed, can be difficult to identify. Therefore this research was conducted to identify shark species being traded in Cilacap fisheries port, to confirm their conservation status with IUCN redlist and to determine their phylogenetic relationship. The PCR using COI (Cytochrome Oxidase I) was successfully amplified for 32 samples. A total of 10 spesies was identified and 6 clusters of different shark family was revealed. These identified shark were categorized in three IUCN conservation status : vulnerable status (Sphyrna zygaena, Alopias superciliosus, Carcharhinus obscurus, Isurus paucus, and Isurus oxyrinchus), near threatened status (Pseudocarcharias kamoharai, Carcharhinus falciformis, Prionace glauca, and Squalus hemipinnis) and one species in endangered status (Sphyrna lewini). The identification result is important to help government to build shark conservation and trading policy.
Keyword: PPS Cilacap, conservation, species identification, shark, phylogenetic, DNA Barcoding

Judul: Elektrodeposisi Film Tipis Semikonduktor Cu2ZnSnS4 (CZTS) pada Substrat Kaca ITO
Abstrak: Semiconductor Cu2ZnSnS4 (CZTS) thin film that can be used as absorber layers on solar cell module was made via electrodeposition method. CZTS thin film was electrodeposited on the surface of a silicate glass coated with a thin layer of indium tin oxide (ITO). Deposition process was done using potentiostatic mode at room temperature with a potential of 1.05 V for 30, 45, and 60 minutes, followed with annealing the film at 2 different temperatures, 500 ºC using furnace and 180 ºC using hot plate, both treatments for 45 minutes in N2/H2S atmosphere. The X-ray difractograms were analyzed using Match 2 program and showed that the CZTS thin films had kesterit crystalline structure, with a low percentage of CZTS phase. The thin film also contained secondary phases such as Cu2S, ZnS, and SnS. The obtained CZTS thin films had a thickness between 1.039 and 1.676 μm. Absorption study showed that the band gap energy of CZTS thin films which was annealed using furnace ranged from 1.50 to 1.52 eV, whereas that annealed using the hot plate was not observed. The band gap energy value showed that CZTS thin films can be used as sunlight absorber layers on solar cell. The formation of CZTS crystal film on this investigation was effectively performed using furnace annealing process at a temperature of 500 ºC with deposition time of 45 minutes.
Keyword: Thin film, Electrodeposition, Cu2ZnSnS4