Judul: Aspek Pertumbuhan Ikan Cucut yang Didaratkan di Pelabuhan Karangsong, Kabupaten Indramayu, Jawa Barat
Abstrak: This study of shark growth held in Karangsong’s port, Indramayu, West Java. The research was began in June to August 2012. Morphometric measure taken from the all sharks which landed in that port during research. There was 3 order, 5 family and 10 species of shark’s recorded but only 2 dominant species had become the main study, it was Carcarhinus dussumieri and Chiloscyllium punctatum. Both of this species had length between 60-100 cm. Growth coefficient (K), asymptotic length (L∞), and age when fish length is theoriticaly 0 (t0) for C. dussumieri is 0.63, 97.44, and -0.18, and C. punctatum 0.32, 90.40, and -0.38. This differences caused by different of its reproduction type, which C. dussumieri gave birth of its pup and C. punctatum laying its egg in seafloor. Sex ratio of these two sharks is equal both male and female (1:1), so we can assumed that there is no sexual segregation both of this species. Recommendation for the management is with limiting output quantities such control the limit of sharkfin export.
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Judul: Studi Pertumbuhan Kepiting Bakau (Scylla serrata Forskal, 1997) di Perairan Karangsong, Kabupaten Indramayu, Provinsi Jawa Barat.
Abstrak: Scylla serrata is one of dominant catches in Karangsong water using bubu. High continously catch on activity could reduce on number of the mud crab population. This study was conducted in Juni-September 2013. Crab sampling was conducted in Karangsong water each 1 month. Length frequency distribution of male mud crab ranged between 60-138 mm, while females between 74-139 mm. Crab’s growth patterns in water of Karangsong is negative allometric. Through the analysis of growth parameter estimation, can be obtained K = − ln (􀜾����), L∞ = 􀯔���� 􀬵����􀬿����􀯕����, and t0 for mud crab males and females are respectively, K equal to 0,39 and 0,42 per month, L∞ equal to 157.35 and 147.99 mm, with t0 - 0,26 and -0,24 months
Keyword: Growth Parameter, Indramayu, water of Karangsong, Giant Mud Crab (Scylla serrata)

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