Judul: Pengaruh Kawasan Pariwisata Terhadap Kesehatan Karang di Pulau Pari, Kepulauan Seribu
Abstrak: Traveling is become a world-wide trend which has been done by many nature lovers. Indonesia, which has many islands, becomes a magnet for tourists to see its underwater beauty. One of these islands is Kepulauan Seribu. Tourism activity causes several damages to coral reef ecosystems. One of them is coral disease, which resulted in the degradation of coral reef ecosystems in the world. This study aims to measure the coral reefs' health rate based on the observation of the abundance and prevalence of coral disease, and analyze the impact of tourism activity on coral reefs' health. This study was conducted from 24 to 25 November 2013 in Pari Island, Kepulauan Seribu, with 4 scattered stations. The method used was the Belt Transect method in the area of 2 x 100 meters, and Line Intercept Transect ( LIT ) in 30 meters long with three replications. Based on the result of the research, coral bleaching phenomenon was found in tourism and non-tourism area. Meanwhile, the most common diseases and health problems in this area are ulcerative white spots (UWS) and sediment damage (SD).
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Judul: Ecology and Distribution of Coral Disease on Hard Coral (Scleractinia) in Pari Island, Thousand Islands, Jakarta
Abstrak: Penyakit karang diketahui sebagai salah satu ancaman yang dapat menyebabkan kerusakan ekosistem karang, namun masih sedikit diketahui di perairan Indonesia, termasuk di Pulau Pari, Kepulauan Seribu. Dalam beberapa dekade terakhir terumbu karang di Gugusan Pulau Pari dilaporkan telah mengalami degradasi sebagai akibat dari aktivitas antropogenik dan juga faktor alami pada daerah ini.Tujuan penelitian ini adalah untuk mengetahui kelimpahan penyakit karang, keanekaragaman karang scleractinian dan juga untuk menentukan perkembangan, prevalensi dan insiden penyakit karang (i.e. Black band disease, BBD) di Gugusan Pulau Pari, Kepulauan Seribu. Pengambilan data kualitas perairan pada masing-masing stasiun dilakukan mengikuti lokasi pengambilan data tutupan dan penyakit karang., Coral diseases have been recognized as a threat that cause the degradation of coral scleractinia which is still slightly recorded in Indonesia, including in Pari Island, Thousand Islands. In last few decades Coral reefs in Pari Islands were recorded have been degraded due to natural impact and anthropogenic activity in this area. The study objective was to find out abundance of coral disease and coral scleractinia diversity and also to determine progression, prevalence and incidence coral disease (i.e. Black band disease, BBD) in Pari Islands, Thousand Islands.
Keyword: Coral, Disease, Abundance, Diversity, Prevalence, Insidence, Pari island, Marine science

Judul: Membran Komposit Kitosan-Zeolit untuk Aplikasi Direct Methanol Fuel Cell
Abstrak: Direct methanol fuel cell (DMFC) is a fuel cell that utilize methanol as the fuel source. The electrolyte membrane used in the DMFC system in this research was chitosan-zeolite composite membrane. The composite membrane was synthesized with chitosan-zeolite composition variation of 1:1, 1:2, 1:3, and 2:1. The membranes were analyzed by Fourier transform infrared spectrophotometer (FTIR) and scanning electron microscope, and for the specific gravity. Membrane performances were tested with methanol uptake, methanol permeability, conductivity, and potential difference in the DMFC system. The FTIR spectrum showed no formation of new functional groups inducating that the composite membrane was a result of physical mixing. Morphological analysis showed that the membrane was nonporous. Chitosan-zeolite 1:3 composite membrane had the highest specific gravity and methanol uptake, 1.4226 g/mL and 41.44%, respectively. The highest proton conductivity was showed by the 1:2 chitosanzeolite composite membrane, namely 7.2946× 10-7 S/cm. Based on this research results, chitosan-zeolite composite membrane can be applied in DMFC system.
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