Judul: Keanekaragaman Tungau Ektoparasit Pada Cicak Hemidactylus Di Depok
Abstrak: One of ectoparasites on Hemidactylus lizard are Geckobia mites of family Pterygosomatidae. This research aimed to determine the diversity, prevalence, infestation intensity, chaetotaxy, and total intensity of ectoparasites mites on Hemidactylus lizard in Depok. Mites were taken from head, eyes, a part of body, thigh, tail, front finger, and back finger, then preserved in 70% alcohol. Mites were prepared on whole mount method using polyvinyl alcohol (PVA). This research found 107 of lizard and nine species of ectoparasites mites namely Geckobia sp1, G2 (Geckobia glebosum), Geckobia sp4, Geckobia sp5, Geckobia sp7, Geckobia sp10, Geckobia sp11, Geckobia sp13, and Geckobia sp14. Prevalence mite on lizard H. garnotii was 85.18%, and H. frenatus was 84.61%. The highest of mite infection intensity on lizard H. garnotii was mite G1, and H. frenatus was mite G. glebosum. The highest infection intensity of mite was on H. garnotii. Leg chaetotaxy observations indicated that mites G2 is G. glebosum, G5 and G11 including Geckobia indica group, G10 and G14 including G. gleadoviana group, G13 including G. keegani group, and G4 including Geckobia group 1.
Keyword: Bogor Agricultural University (IPB), mites, chaetotaxy, Hemidactylus, Geckobia, ectoparasites

Judul: Inventarisasi dan Identifikasi Tungau Ektoparasit pada Cicak di Kawasan Taman Margasatwa Ragunan
Abstrak: Gecko interacts with various types of mites, both ectoparasite and endoparasite. Ectoparasite mites are parasitic organisms that live on the surface of its host, sucking the blood or feed on hair, fur, skin, or skin secretions. Many species of gecko were infested by Geckobia. The aim of this research was to inventory, identify, analyze mite’s leg chaetotaxy, calculate the prevalance and intensity of mite infestation, and learn the diversity of ectoparasites mites on gecko in the inside and outside of Taman Margasatwa Ragunan. Mites were prepared by whole mount method using polyvinyl alcohol media. Identification results based on characters of mites found twelve species of Geckobia (G1, G2, G4, G5, G6, G7, G10, G11, G12, G13, G18, and G19). However, based on chaetotaxy, the G2, G4, and G6 were grouped in Geckobia grup 1, G10 in group with G. gleadoviana, G11 in group with G. indica, G13 in group with G. keegani, and G19 in group with G. oedurae. The G1, G5, G7, G12, and G18 in the new group Geckobia. The highest of mite infestation intensity on gecko C. platyurus was mite G4. The highest of mite infestation intensity on gecko H. frenatus was mite G1, and gecko H. garnotii was mite G10. H. garnotii has the largest infestation intensity values.
Keyword: Bogor Agricultural University (IPB), Taman Margasatwa Ragunan, Geckobia, gecko, ectoparasite, chaetotaxy

Judul: Sintesis 1-Kloro-2-metoksi-6-propilnaftalena-1,3-dioksolana (1:1) sebagai Prekursor Asam (S)-(+)-(6-Metoksi-2-naftil)propanoat
Abstrak: Senyawa 1-kloro-2-metoksi-6-propilnaftalena-1,3-dioksolana (1:1) sebagai prekursor asam (S)-(+)-(6-metoksi-2-naftil)propanoat disintesis dari bahan awal 2-metoksinaftalena. Tahapan sintesis diawali dengan klorinasi menggunakan 2 jenis pereaksi klorinasi, yakni isosianurat terklorinasi dan NaOCl. Klorinasi dengan isosianurat terklorinasi berhasil menyintesis 1-kloro-2-metoksinaftalena sebagai produk monoklorinasi melalui pencirian dengan kromatograf gas-spektrometer massa (GC-MS). Nisbah konversi produk paling efisien diperoleh pada laju penambahan 2.5 mmol/jam. Sebaliknya, klorinasi dengan NaOCl menghasilkan produk triklorinasi. 1-Kloro-2-metoksinaftalena selanjutnya diasilasi dengan propanoil klorida, tetapi analisis dengan GC menunjukkan bahwa produk asilasi tidak terbentuk. Sistem bebas-air diperlukan untuk keberhasilan proses asilasi tersebut.
Keyword: isosianurat terklorinasi, NaOCl, nisbah konversi