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INDONESIA
Jurnal Segara
Published by Kementerian Kelautan dan Perikanan RI
ISSN : 19070659     EISSN : 24611166     DOI : -
Core Subject : Science, Social,
Earth & Planetary Sciences Environmental Science Materials Science & Nanotechnology
Jurnal SEGARA (p-ISSN: 1907-0659, e-ISSN: 2461-1166) adalah Jurnal yang diasuh oleh Pusat Riset Kelautan, Badan Riset dan Sumber Daya Manusia Kelautan dan Perikanan (BRSDMKP), Kementerian Kelautan dan Perikanan – KKP, dengan nomenklatur baru Pusat Riset Kelautan, Badan Riset dan Sumber Daya Manusia Kelautan dan Perikanan, KKP dengan tujuan menyebarluaskan informasi tentang perkembangan ilmiah bidang kelautan di Indonesia, seperti: oseanografi, akustik dan instrumentasi, inderaja,kewilayahan sumberdaya nonhayati, energi, arkeologi bawah air dan lingkungan.
Arjuna Subject : -
Articles 6 Documents
 1 
Search results for , issue "Vol 13, No 2 (2017): Agustus" : 6 Documents clear
The Use of Remote Sensing and GIS Technology in Supporting Ecoregion Management Tyas Ismi Trialfhianty; Fajrun Wahidil Muharram; Aldian Giovanno
Jurnal Segara Vol 13, No 2 (2017): Agustus
Publisher : Pusat Riset Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1318.81 KB) | DOI: 10.15578/segara.v13i2.6447

Abstract

Coastal areas provide great benefits for human lives. In many isolated islands, coastal ecosystem provides food and building materials extracted from coastal vegetation e.g. mangroves. Therefore, it is essential to ensure the sustainability of the coastal ecosystem. This study provides data and a map in supporting the coastal ecoregion management, by using remote sensing satellite imagery, GIS technology, and field observation. Remote sensing and GIS data were obtained from Google Earth and analysed by ArcGIS. The combination of both laboratory and field work were carried out to provide a broad picture of the coastal area in Jefman Island, Raja Ampat, West Papua. The result of this study showed various habitats and vegetation in the Jefman seabed area. It also demonstrates that the abundance and diversity of coral reef and reef fishes are the major community constructing the island, amounting 22% coral cover with 12 families and diversity index 1.20 – 2.52 for reef fish with fish density about 231 ind/50 m2. Furthermore, other communities such as seagrass, seaweed, and mangrove are also briefly explained, as they also play a greater role in supporting the whole coastal ecological system. Based on map data analysis, we found a particular area that urgently needs to be protected. Remote sensing and GIS technology were found useful to help the manager to design coastal management strategies in the future.   
The Suitability Of Coastal Area Development Based On Minawisata Concept in Pacitan District Syahrial Nur Amri; Taslim Arifin
Jurnal Segara Vol 13, No 2 (2017): Agustus
Publisher : Pusat Riset Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2724.505 KB) | DOI: 10.15578/segara.v13i2.6441

Abstract

Minawisata concept is the implementation and integration of efforts to optimize the utilization of marine and coastal resources with action to maintain the sustainability and value of sustainability. This study aimed to determine the suitability of the coastal land development in Pacitan District based on the potential of marine and coastal areas in accordance to the minawisata concept. Study area covered seven districts along the coastline of Pacitan District, East Java Province, namely Donorejo, Pringkuku, Pacitan, Kebonagung, Tulakan, Ngadirejo, and Sudimoro District. The methodology used in this study is a combination of Geographic Information Systems analysis, satellite imagery interpretation, and field data processing. This study is limited to the identification of the potential of marine and coastal area, the suitability of land use, and the suitability of coastal area development based on the minawisata concept. The results show that there are three dominant utilizations of marine and coastal areas in Pacitan District, including: Marine Aquaculture, Capture Fisheries, and Beach Tourism. Based on the analysis on suitability of the marine and coastal area, seven districts in Pacitan are suitable for fisheries and beach tourism, while only two districts were suitable for marine aquaculture with several conditions, namely Pacitan District and Ngadirejo District. The implementation of minawisata concept for coastal area suitability based on the analysis of seven identified districts is feasible for further development.
Characteristics of Marine Litters in the West Coast of Bali Semeidi Husrin; Ulung Jantama Wisha; Rahmadi Prasetyo; Aprizon Putra; Adli Attamimi
Jurnal Segara Vol 13, No 2 (2017): Agustus
Publisher : Pusat Riset Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1720.714 KB) | DOI: 10.15578/segara.v13i2.6449

Abstract

Kuta beach in Bali is a world-famous tourist destination has been suffering from marine litters (or debris) disaster almost every year. Mitigation efforts have been carried out by the local government started from educating the people as well as continuing mass cleaning campaigns for the stranded litters in the beach. The research has an objective to understand the physical processes of marine debris characteristics in Kuta such as its propagation and distribution along the coastline and in the water columns during the two different seasons (West Monsoon and Transitional seasons). A hydrodynamic model was developed to investigate the transport of marine litters from their sources by considering the tide-driven surface currents and wind. Field surveys were also conducted to assess marine litter’s characteristics in the surface and in the sea beds for both plastic and wood types of litters. Hydrodynamic simulation shows that the surface current ranging from 0.05 – 1.75 m/s is capable of transporting marine surface debris from Bali Straits and other sources in the South of Bali to Kuta during West Monsoon season. The collected litters during the West Monsoon season were four times larger in quantity. The concentration of litters in the seabed and in the water column is larger near to the coastline than further offshore. In the meantime, during Transitional season, Kuta was completely free from marine litters. Results from surveys also showed that the most effective measures for marine litters in Kuta is self-awareness of the people to keep the environment clean.
Progress on Coastal Ecosystems: Corals and Mangroves Recovery 12 Years Later after March 2005 Earthquake in North Nias, North Sumatera. Suyarso .; Bayu Prayuda; Praditya Avianto
Jurnal Segara Vol 13, No 2 (2017): Agustus
Publisher : Pusat Riset Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1494.353 KB) | DOI: 10.15578/segara.v13i2.6444

Abstract

Twelve years ago 9.3 Mw earthquake in the Andaman Islands, on December 26, 2004 accompanied by the tsunami in Aceh led to extraordinary losses, unprecedented for human life in coastal areas of Indonesia and neighboring countries. A few months later, on March 28, 2005  an earthquake 8.7 Mw has occured around Nias, hundreds of hectares of coral reef ecosystems lifted into the terrestrial, many corals die of drought and collapse due to earthquake vibration. Similarly, most of the mangrove moved away from the coastline due to land lifting. The purpose of this study is to determine the development of coastal ecosystems, especially coral reefs have been damaged by the earthquake and mangrove due to changes in the environment. The method used in this study is remote sensing technique through the data acquired from landsat imageries, measurements of coastal profile, coral reef health monitoring data collected in each year at six permanent stations. The field research conducted in August 2005, December 2014 and December 2015, the last two activities are under research collaboration between the Marine Agency of North Nias Regency and Research Center for Oceanography LIPI. The results showed in the period 2007-2010 live coral coverage is likely to increase in the range between 2.23% to 48%. Instead since 2014 showed a significant decrease in almost all stations. Twice earthquakes with 33the magnitude 8.2 Mw and  8.6 Mw occurred almost simultaneously on April 11, 2012 at 400 km southwest of Aceh is thought to play a role in tear down the developing corals. Similarly, the existence of mangrove that has moved away from the coastline due to the land lifting in 2005, species of  Rhyzophora desiccated  and died slowly but other species such as Aegiceras, Dolichandrone, Xylocarpus and Cheriops  appear stayed on  the dry land condition and seemed to be growing normally
Seagrass Ecosystem Carbon Stock In The Small Islands: Case Study In Spermonde Island, South Sulawesi, Indonesia Agustin Rustam; Nasir Sudirman; Restu Nur Afi Ati; Hadiwijaya Lesmana Salim; Yusmiana Puspitaningsih Rahayu
Jurnal Segara Vol 13, No 2 (2017): Agustus
Publisher : Pusat Riset Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1198.664 KB) | DOI: 10.15578/segara.v13i2.6445

Abstract

Small islands are particularly rich with coral reefs and seagrass ecosystems and coastal plants. Seagrass is one of the coastal ecosystems of blue carbon, which is capable of storing utilize and store CO2 in the form of organic carbon in biomass and sediment. The purpose of this study to get the carbon stock of seagrass and its role in climate change. The survey method with sampling purposive sampling representing all research sites and analyzed the amount of carbon contained in biomass and sediment. The result showed that there were eight species of seagrass found, and the highest carbon stock  on the type Enhalus acoroides at  Kapoposang island was 1.64 MgC / ha. The average value of the total biomass of carbon stock in the island's largest seagrass Bauluang island  was 1.89 ± 0.92 Mg C / ha with the largest at the ground below 77% of total carbon biomass. Carbon stock in sediments of seagrass ecosystems average of 531.87 ± 74.08 Mg C / ha up to a depth of 50 cm. The role of seagrass in Spermonde archipelago waters in climate change in both the biomass and sediment for MgC 533.25 MgC/ ha is equivalent to the use of CO2 for 1955.26 MgCO2e / ha.
An Overview of Surface Water Quality Influenced by Suspended Solid Content in the Sayung Waters, Demak, Indonesia Ulung Jantama Wisha; Koko Ondara; Gunardi Kusumah
Jurnal Segara Vol 13, No 2 (2017): Agustus
Publisher : Pusat Riset Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1113.82 KB) | DOI: 10.15578/segara.v13i2.6446

Abstract

Abrasion which is occurred in the Sayung coast is triggered by a big role of climate change as well as the sea level rise and land subsidence. Resulting degradation ultimately affects changes in existing environmental conditions. This study has aim to determine the existing water based on biological and chemical content which is affected by increasing suspended solid content in the Sayung waters. Purposive sampling technique was applied, and data is analyzed both statistically and spatially. Suspended solid value has ranged 23,1-199,6 mg/L. Distribution of suspended solid was only simulated during low tide towards high tide phase with current speed has ranged 0-0.41 m/s. We found that dissolved oxygen value is quite high in several observation stations which indicates the fertile area with low pollution and blooming tendency. In the station which is dominated by a high suspended solid and turbidity found that the chlorophyll-a decreases. The increased rate of suspended solid is directly enhancing the turbidity and indirectly declines the photosynthesis activity and inhibits the oxygen cycle. Resulting in the primary productivity reduction in the Sayung waters

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