Judul: Analisis Ragam Genotip RAPD dan Fenotip Truss Morfometrik Tiga Populasi Ikan Gabus Channa Striata (Bloch, 1793)
Abstrak: In order to manage genetic resouces for aquaculture development of snakehead fish, the evaluation of genetic variability of three populations from different geographical areas is needed to be performed. The purpose of this study is to identify the genotype and phenotype of snakehead fish from Jawa, Sumatera and Kalimantan using RAPD and truss morphometric. RAPD method used OPA-02, OPA-04 and OPA-07 primers was conducted to type the genotypes. Twenty one measurement of truss morphometric was done on the body of fish observed. The results showed that population from Java had highest percentage of polymorphism and heterozygosity than Sumatera and Kalimantan fish population that was, 83,33% and 0,3655. The population from Kalimantan and Jawa had the highest genetic distance was 0,1908. Population from Sumatera and Kalimantan had interpopulation relationship based on the similarity of truss morphometric was 50%. Coefficien of morphometric variation data showed that population of snakehead fish from Kalimantan was higher than Jawa and Sumatera.
Keyword: 

Judul: Karakterisik Fenotip Morfometrik dan Genotip RAPD (Random Amplified Polymorphic DNA) Ikan Betok Anabas testudineus (Bloch, 1792)
Abstrak: The identification of phenotype and genotype is needed for mapping the population structure geographically of a fish species in the waters territory. The purpose of this research was to analyze the genetic variability based on the morphometric phenotype characteristics and RAPD genotypes of climbing perch fish population of Kalimantan, Java and Sumatera. Characterization of phenotypes were conducted using a method of morphometric truss and typing of genotype by using three primers of RAPD (OPA-07, OPA-02, and OPC 05). The polymorphism level and heterozygosity of climbing perch fish population of Kalimantan was higher than the population of Java and Sumatera, wich reached 39,29% and 0,16. The genetic distance between climbing perch fish population of Kalimantan, Java and Sumatera ranged from 0,17 to 0,39. The population of Kalimantan showed the similarity of morphometric truss with Sumatera population about 49,97%, while with the population of Java was 24,96%.
Keyword: 

Judul: Katalis Zink Ferit Tersubstitusi Cu untuk Oksidasi Benzil Alkohol
Abstrak: Katalis berperan dalam menurunkan energi aktivasi. Katalis ZnFe2O4 dan ZnFe2O4 tersubstitusi Cu disintesis menggunakan metode kopresipitasi untuk digunakan dalam oksidasi benzil alkohol. Katalis dicirikan dengan spektrofotometer inframerah (FTIR) dan difraktometer sinar-X. Spektrum FTIR menunjukkan puncak serapan dari ikatan Zn-O dan Fe-O masing-masing pada rentang 559‒575 cm-1 dan 419‒447 cm-1. Difraktogram menunjukkan terbentuknya fase tunggal Zn0.6Cu0.4Fe2O4 pada katalis ZnFe2O4 tersubstitusi Cu 20%. Benzil alkohol dioksidasi dengan sistem refluks. Konversi benzil alkohol meningkat dengan meningkatnya suhu. Kadar benzaldehida yang dihasilkan dengan katalis ZnFe2O4 tersubstitusi Cu 20% lebih tinggi dibandingkan dengan katalis ZnFe2O4 yang tidak tersubstitusi dan yang tersubstitusi Cu 60 dan 80%. Hal tersebut menunjukkan bahwa katalis ZnFe2O4 tersubstitusi Cu 20% memiliki kinerja yang lebih baik dalam oksidasi benzil alkohol menjadi benzaldehida dengan kadar benzaldehida 8.763%.
Keyword: Benzil alkohol, katalis, oksidasi, ZnFe2O4