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: 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: Solusi Geometri Schwarzschild untuk Dimensi 4+1 dengan Invarian Rotasi Isotropik.
Abstrak: Metrik Schwarzschild merupakan solusi eksak pertama dari persamaan medan Einstein dengan mangasumsikan metrik statik dan simetris. Metrik Schwarzschild yang ditemukan oleh Karl Schwarzschild masih dalam dimensi 3+1, namun seiring dengan teori-teori terbaru yang menunjukkan bahwa alam semesta tidak hanya di dimensi 3+1. Maka melalui penambahan dimensi, tujuan penelitian ini memperoleh solusi pada geometri Schwarzschild untuk dimensi 4+1 dengan memodifikasi koordinat bola yang invarian rotasi isotropik dan melalui penurunan rumus seperti koordinat bola, simbol Christoffel, dan tensor Ricci. Selain mendapatkan solusi ini, metrik Schwarzschild dimensi 4+1 dapat digunakan sebagai metrik dasar untuk memperoleh solusi blackhole dan wormhole pada dimensi 4+1. Hasil akhirnya, dengan memanfaatkan modifikasi koordinat bola, metrik Schwarzschild dapat dibentuk sehingga diperoleh solusi geometri Schwarzschild untuk dimensi 4+1.
Keyword: metrik Schwarzschild, persamaan medan Einstein, modifikasi koordinat bola, penambahan dimensi, invarian rotasi isotropik