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All Journal ILMU KELAUTAN: Indonesian Journal of Marine Sciences Jurnal Pengabdian Kepada Masyarakat Universitas Bangka Belitung
Moh Muhaemin
University of Lampung
Humanities Earth & Planetary Sciences Education Social Sciences Other

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Glutathione (GSH) Production as Protective Adaptation Against Light Regime Radiation of Symbiodinium Natural Population Moh Muhaemin; Dedi Soedharma; Hawis H Madduppa; Neviaty Putri Zamani
ILMU KELAUTAN: Indonesian Journal of Marine Sciences Vol 22, No 3 (2017): Ilmu Kelautan
Publisher : Marine Science Department Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (11.588 KB) | DOI: 10.14710/ik.ijms.22.3.121-125

Abstract

Glutathione (GSH), as a wide range of low molecular weight, which found in marine microalgae and event bacteria, are essential to prevent photooxidation and productivity loss from these Radical Oxigen Species (ROS). Symbiodinium, endo-symbiont of corals, were exposed with different UV radiation combined with irradiance treatments to explore biomass specific initial response. Intracellular glutahione was observed as potential adaptive response of Symbiodinium population under environmental specific stress. The result showed that GSH production increased significantly with increasing irradiance and/or UV levels. GSH concentration was fluctuated among populations exposed by different irradiance treatments, but not effected by UV and irradiance exposure. GSH production as a response of UV exposure was higher than irradiance treatments. Both these high correlative fluctuation of intracellular GSH production and the presence of both treatments indicated protective specific adaptation of Symbiodinium under specific environmental stress, respectively. Keywords: zooxanthellae, irradiance, glutathione (GSH), corals, Fungia
SIMULASI AKSESSIBILITAS EVAKUASI TSUNAMI MENGGUNAKAN TOOLS NETWORK ANALYSIS DI DAERAH RAWAN TSUNAMI KABUPATEN TANGGAMUS Moh Muhaemin
Jurnal Pengabdian Kepada Masyarakat Universitas Bangka Belitung Vol 10 No 1 (2023): Jurnal Pengabdian Kepada Masyarakat Universitas Bangka Belitung
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jpu.v10i1.3888

Abstract

Geological activity in the Sunda Strait received attention through the tsunami that occurred at the end of 2018 and the tectonic earthquake in the Sunda Strait subduction zone with Magnitude 6.9 on August 2, 2019. These conditions raise concerns about the threat of earthquake and tsunami disasters in the surrounding area. Tanggamus Regency, which is located within a fairly close radius to the Sunda Strait, has a very wide tsunami-prone lowland, especially in the area around the tip of Teluk Semangka. Based on these conditions, this research generally aims to map evacuation service areas, map evacuation times, and analyze effective evacuation models. To answer these challenges, this research was conducted following several methodological stages. It started with defining the study area using spatial analysis, digitizing the road network and interlinking it with the Network Analysys tool on the ArcGIS platform. Based on the observation, it was found that the most at-risk areas are those that have the farthest distance from the Temporary Evacuation Site (TES) location when traveled without a vehicle. Each region has a TES location that can be reached using the available roadways. There are 3 sub-districts that have a travel time of more than 30 minutes to reach the TES, namely, Semaka sub-district, Wonosobo sub-district and Kota Agung Barat sub-district. It is expected that the results of this study can be one of the considerations in tsunami disaster mitigation efforts in Tanggamus Regency.
Co-Authors Dedi Soedharma Hawis H Madduppa NEVIATY PUTRI ZAMANI