Department of Marine Science and Technology, Faculty of Fisheries and Marine Science, Bogor Agricultural University, Bogor

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Coral Settelment on Concrete Artifical Reefs in Pramuka Island Eaers, Kepulauan Seribu, Jakarta and Management Option Aziz, Arif Miftahul; Kamal, Mohammad Mukhlis; Zamani, Neviaty Putri; Subhan, Beginer
Journal of Indonesian Coral Reefs Vol 1, No 1 (2011)
Publisher : Journal of Indonesian Coral Reefs

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Latest stage development of recruit coral community in concerete artificial reefs were observed for nine months (from October 2009 to July 2010) by visual cencus and underwater photography methods. Amounts of 10 units of concrete artifical reef deployed in Pramuka Island waters and Gosong Pramuka in 2011 were used as an objects in this reseacrh. As a comparation, the conditios of coral coverand reef fishes in natural reef were observed by line intercept transcet, visual census, and underwater photography methods. In order to measure coral coberage area  we used a ImageJ 1.42q software. In march 2010, amounts of 457 coral colonies from 21 genera and 216 coral colonies from 16 genera were found on artifical reefs surface in Station 1 (Pramuka Island) and Station 2 (Gosong Pramuka) respectively. Number pf recruit coral colonies was dominated by genus Porites. Pocillopora, and Chypastrea. In july 2010, the precentage of coral cover on cencrete artifical refs reaches 41.46 ±13.37% (±SD) in Station 1 and 20. ±6.08% (mean ±SD) in Station 2, while the percentage of coral coverage on natural reefs were 23.14% and 40.43% in Station 1 and 2 respectively. Genus Porites become the most dominant genus in both of stations in terms recruit coloby abudance and percent cover. This result shows that concrete artificial reefs can effectively use to create new habitat of corals, coral fishes and other biota particularly in degraded coral reefs ecosystem.
Logic Structure Determination (LSD) as a Computer Assisted Structure Elucidation (CASE) for Molecular Structure Determination of Cytotoxic Cembranoids from Soft Coral Januar, Hedi Indra; Zamani, Neviaty Putri; Soedharma, Dedi; Chasanah, Ekowati
Squalen, Buletin Pascapanen dan Bioteknologi Kelautan dan Perikanan Vol 11, No 1 (2016): May 2016
Publisher : Research and Development Center for Marine and Fisheries Product Processing and Biotechnol

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/squalen.v11i1.177


Indonesian tropical soft corals are valuable resources that produce pharmacological cytotoxic cembranoids. However,  the manual structure determination in these compounds requires adequate knowledge of organic chemistry. This study presents the application of Logic Structure Determination (LSD) as a freeware Computer Assisted Structure Elucidation (CASE) for automatic molecular structure determination of cembranoid compounds from soft corals species. 12 Nuclear Magnetic Resonance (NMR) datasets of cytotoxic cembranoids were used to evaluate the accuracy of LSD in generating the possible structures. The results of this study shows that LSD generated numerous possible molecular structures as the data input files were only derived from 2D-NMR HMQC (Heteronuclear Multiple-Quantum Correlation), COSY (Homonuclear Correlation Spectroscopy), and HMBC (Heteronuclear Multiple Bond Correlation). The accuracy was significantly enhanced (only 2-4 possible cembranoid structures from each NMR dataset) with the addition of H2BC (Heteronuclear 2 Bond Correlation) experimental data. This may indicate that VLRC (Very Long-Range Correlations) significantly affects LSD capability. Furthermore, LSD with direct 2 bond NMR experimental data is a reliable CASE technique for cembranoid compounds identification. In general, this freeware-CASE has the potential to be applied  on other types of small molecule compounds and may serves as a solution for elucidation bottleneck step in studies on Indonesian natural products.