Judul: Keterkaitan Ekosistem Mangrove dengan Keanekaragaman Ikan di Pabean Ilir dan Pagirikan, Pasekan Indramayu, Jawa Barat
Abstrak: Mangrove ecosystem has high productivity because it has the ability as a nutrient trap, which supports aquatic biota, especially fish. The purpose of this study was to determine the relationship between mangrove densities with total fish catch, number of fish species, and fish diversity. The data collections were mangrove condition, fish, physical, and chemical parameters. The results showed that mangrove density in Pabean Ilir Village higher than Pagirikan village. The highest importance value index of mangrove was Rhizophora mucronata and Avicennia marina. Total number of fish catch in two locations were 1093 individuals, consisting of 80 species belonging to 38 families. The dominant fish species were Ambassis nalua, Johnius belangerii, Leiognathus equulus, and Platycephalus indicus. There was positive relationship between the mangrove density with the total number of fish catch, number of fish species, and fish diversity in Pabean Ilir Village and Pagirikan Village, Pasekan Indramayu, West Java.
Keyword: mangroves., Indramayu, fish, Bogor Agricultural University (IPB)

Judul: Keterkaitan Ekosistem Mangrove dengan Produksi Ikan di Desa Pagirikan dan Pabean Ilir, Kecamatan Pasekan, Indramayu, Jawa Barat
Abstrak: Mangrove sebagai salah satu komponen ekosistem pesisir memegang peranan yang cukup penting, baik di dalam memelihara produktifitas perairan pesisir maupun di dalam menunjang kehidupan penduduk di wilayah pesisir tersebut. Di Kabupaten Indramayu, penurunan luasan mangrove masih terjadi sampai sekarang. Menurunnya luasan mangrove berarti menurunnya kualitas habitat yang akan berakibat pada menurunnya produksi ikan. Penelitian ini bertujuan menentukan pengaruh perubahan ekosistem mangrove terhadap produksi ikan pada kawasan mangrove di pesisir Indramayu. Metode analisis data yang digunakan adalah metode deskriptif korelasional dengan menggunakan pendekatan kuantitaif. Data produksi dari kedua desa tersebut dibandingkan nilai rata-rata dan standar deviasinya (α = 5%) (Barnard et al. 1993). Data penelitian yang dikumpulkan berupa data produksi ikan dari kedua desa dan data kondisi mangrove di kedua desa. Hasil pengamatan menunjukkan produksi rata-rata dari kedua desa berbeda nyata sehingga dapat disimpulkan bahwa terdapat keterkaitan antara kondisi ekosistem mangrove dengan produksi ikan.
Keyword: ikan, mangrove, Pabean Ilir, Pagirikan, produksi

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