Judul: Filogeografi Kerang Hijau (Perna viridis) di Indonesia dan Kaitannya dengan Jalur Lintas Pelayaran.
Abstrak: Green Mussel (Perna viridis) has the potential to spread geographycally through larval dispersal or ballast water from boat, which potentially to be invansive in other geographical region. The research aimed to analize genetic connectivity and genetic diversity of Green Mussel (Perna viridis) in Indonesia and its relation to cross shipping lanes, using genetic marker of mitochondrial Cytochrom oxidase 1 (CO1) locus. Farthest genetic distances was observed in the population of Makassar and Muara Kamal (D = 0.008), and the nearest was observed between population of Teluk Lada and Ambon and between population of Teluk Lada and Palabuhan Ratu (D = 0.002). A little genetic differentiation was observed between Makassar and Palabuhan ratu (Fst = 0.05). A large genetic differentiation was observed between Ambon and Teluk Lada (Fst = 0.90) and between Ambon and Palabuhan Ratu (Fst = 0.90). Genetic diversity shown by haplotype diversity in five locations was observed high. Highest haplotype diversity was observed in populations of Muara Kamal (Hd = 0.27), followed by the population of Palabuhan Ratu and Teluk Lada (Hd = 0.22 and Hd = 0.18), and lowest haplotype was observed in population of Ambon and Makassar (Hd = 0.13). Close genetic relationship between five populations most likely associated with cross shipping lanes in Indonesia as a medium for the spread of P. viridis.
Keyword: Perna viridis, DNA Barcoding, genetic diversity, connectivity

Judul: Studi Morfometrik Perna Viridis Linnaeus 1758 di Muara Angke dan Pelabuhanratu
Abstrak: The water in North Jakarta is polluted water. This pollution affect the life of biotic in the water. Green mussel (Perna viridis) is one species that can live in that polluted water. Environment affect green mussel’s growth. The objective of present study is to compare the growth pattern and morphometric of Perna viridis in polluted area (Muara Angke) and less polluted area (Pelabuhanratu). This study used graphic analyse method to see the connection between each parameter. The results of this study proves there is morphometric difference in shell length with average for Muara Angke and Pelabuhanratu with value 54.14 mm and 49.94 mm, shell width with average for Muara Angke and Pelabuhanratu with value 25.86 mm and 24.77 mm , shell height with average for Muara Angke and Pelabuhanratu with value 17.5 mm and 14.74 mm , shell weight with average for Muara Angke and Pelabuhanratu with value 4.78 g and 3.52 g , shell length and shell weight ratio with average for Muara Angke and Pelabuhanratu with value 13.28 and 15.41 , shell length and shell width ratio with average for Muara Angke and Pelabuhanratu with value 2.11 and 2.02 , shell length and shell height ratio with average for Muara Angke and Pelabuhanratu with value 3.33 and 3.4, shell width and shell height ratio with average for Muara Angke and Pelabuhanratu with value 1.59 and 1.7, and condition index of Perna viridis with average for Muara Angke and Pelabuhanratu with value 12.14 and 12.98.
Keyword: 

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