Judul: Keterkaitan antara Terumbu Karang dan Lamun dengan Sumberdaya Ikan dingkis (Siganus canaliculatus) di Perairan Pulau Abang, Kota Batam
Abstrak: lkan dingkis merupakan ikan yang hidup berasosiasi dengan terumbu karang dan padang lamun. Bagi masyarakat Pulau Abang, ikan dingkis merupakan ikan target dan jadi incaran terutama pada saat perayan Imlek karena harganya cukup tinggi khususnya yang mengandung telur. Eksploitasi yang berlebihan dan penggunaan alat tangkap yang tidak ramah lingkungan mengancam sumberdaya ikan dingkis dan habitatnya., Rabbit fish (Siganus canaliculatus) is an associated fish that live with coral reefs and seagrass. The fish is fishing target for local people and drilled during Lunar Chines New Year Season because of high price particulary its containing eggs. Excessive exploitation of the resources and unfriendly environment threaten the existence of the abundance of the fish. Research objective is to analyze the condition of coral reefs, seagrass and Rabbit fish, where the study can be used as an input of the management of the fish resources. Data was collected in May and June 2009. Transect square method was used to describe the condition of the coral reefs and seagrass and analysis using Image J. The abundance of fish was determined with Under Water Visual Census. Furthermore, food habits was analyzed using the Preponderance Index. Clustering analysis was used by using the Bray Curtis Index and to see their relevance was done using Pearson correlation (r). The results obtained was: (I) The condition of coral cover was poor to moderate category between 21.83% - 64.49%, while for the algae varied between 2,77% - 57.62%, (2) The condition of seagrass cover varied between 1620"10 - 67.90%. Pearson correlation analysis (r). showed that Rabbit fish has a weak relationship but positive with r<0.5 on the seagrass or algae. Management alternatives are: (1) To increase public knowledge in the form of information about the coral reefs and seagrass in . the framework of Rabbit fish resources, (2) Seagrass rehabilitation, (3) catching prohibition at certain times, (4) cultivation activities, (5) involving stakeholders and (6) enhancing the supervision.
Keyword: Terumbu Karang, Ikan dingkis, Siganus canaliculatus, Perairan Pulau Abang, Batam

Judul: Hubungan kondisi terumbu karang dengan keberadaan ikan Chaetodontidae di perairan Pulau Abang, Batam:
Abstrak: Karang dimanfaatkan tidak saja sebagai makanan bagi ikan Chaetodontidae, tetapi juga sebagai tempat tinggal (Harmelin-Vivien & Bouchan-Navaro 1983). Bell & Galzin (1984), Sano et al. (1984), Adrim & Hutomo (1989), Bouchon- Navm dan Bouchon (1989), Edrus & Syam (1998), Zekeria & Videler (2000) menuniukkan bahwa keanekamzarnan dan kelimuahan ikan famili Chaetodontidae meninhat dengan meningkagya tutupan karkg hidup. Penelitian ini penting dilakukan untuk daoat mengetahui mruhan kondisi terumbu karang secara cepat, tepat dan mudah. ^ ~ d a ~t&u j k d ari penelitian ini adalah m~ndeskripsiican kondisi terumbu karang dan ikan Chaetodontidae, menganalisa hubungan antara kondisi terumbu karang dengan ikan Chaetodontidae sebagai dasar menentukan rekomendasi pengelolaan terumbu karang berbasis ekologi. Penelitian dilakukan di perairan Pulau Abang Kecil dan sekitamya pa& Kelurahan Pulau Abang, Kecamatan Galang, Kota Batam. Penelitian ini berlangsung selama 4 (empat) bulan yaitu sejak bulan Mei-Agustus 2009. Pengambilan data terumbu karang dilakukan dengan metode LIT. Pengambilan data ikan Chaetodontidae dilakukan dengan metode UVS. Pengambilan data parameter lingkungan dengan dilakukan &ara in-situ. Analisa isi &rut atau jenis makanan ikan Chaetodontidae dilakukan di Laboratorium EkoBiologi De.pa rtemen Manajemen Sumberdaya Perairan (MSP).
Keyword: terumbu karang, Pulau Abang, Batam

Judul: Sintesis Flavon dari Fenol dan Benzoil Klorida
Abstrak: Flavone is a class of flavonoid, commonly found in plants with wide bioactivity spectrum. A widely used flavone synthesis route is through acidcatalyzed oxidative cyclization of β-diketone. In this study, unsubstituted flavone had been synthesized via 5-step from phenol, with 22% yield and successfully increased the yield of previous study on Fries rearrangement of phenyl acetate and benzoylation of o-HAP steps. Phenol was acetylated resulting 93% phenyl acetate. AlCl3-catalyzed Fries rearrangement in 1.5 hour and at 120 °C converted phenyl acetate into o-hydroxyacetophenone (o-HAP) with 40% yield. AlCl3 as catalyst produced o-HAP with higher and reproducible yield compared with BF3·Et2O and ZnCl2. Benzoylation of o-HAP followed by Baker-Venkataraman rearrangement of the ester product using KOH in dried pyridine produced β-diketone 1-(2- hydroxyphenyl)-3-phenylpropane-1,3-dione. The yield of ester and β-diketone were 71% and 85%, respectively. Finally, oxidative cyclization of β-diketone with sulphuric acid as catalyst produced 99% of flavone. The flavone product had been characterized spectroscopically and its melting point as well.
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