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INDONESIA
JOURNAL OF COASTAL DEVELOPMENT
Published by Universitas Diponegoro
ISSN : 14105217     EISSN : -     DOI : -
Core Subject : Education,
Education
The Journal of Coastal Development (ISSN 1410-5217) is dedicated to all aspects of the increasingly important fields of coastal and marine development, including but not limited to biological, chemical, cultural, economic, social, medical, and physical development. The journal is jointly published by the Research Institute of Diponegoro University, Semarang, Indonesia and Indonesian Assosiation of Oceanologist (ISOI).
Arjuna Subject : -
Articles 12 Documents
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Search results for , issue "Vol 15, No 2 (2012): Volume 15, Number 2, Year 2012" : 12 Documents clear
DIATOM STRATIGRAPHY OF MANGROVE ECOSYSTEMS ON THE NORTHERN COAST OF CENTRAL JAVA Tri Retnaningsih Soeprobowati; Sri Widodo Agung Suedy; Peter Gell
JOURNAL OF COASTAL DEVELOPMENT Vol 15, No 2 (2012): Volume 15, Number 2, Year 2012
Publisher : JOURNAL OF COASTAL DEVELOPMENT

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Abstract

The natural mangrove ecosystems along the Northern Coast of Central Java were very limited in extent, even had replanted almost twenty years ago. Naturally, the upper layer of sediment are the latest deposition (superposition). Environmental condition recently are recorded in the top sediment layer, and can be used to reconstruct past condition  (the present is the key to the past). The potential use of diatoms to reconstruct palaeoecology is well established. Diatoms are microscopic algae that form siliceous frustules which make them well preserved in sediment. Diatoms and their assemblages are very useful as integrated indicators of environmental changes because their distribution is closely linked to water quality parameters as well as their affinities to several physical habitats. This research was conducted in order to determine the changes of mangrove ecosystem in the Northern Coast of Central Java based on diatom stratigraphy. Sediment samples from mangrove sites were taken from Pekalongan, Brebes, Semarang, Demak and Rembang. Diatom analysis, consist of digestion, preparation, and identification. The diatom stratigraphy was performed by Software of  C2 1.5.1. Stratigraphycally, the mangrove ecosystems along the Northern Coast of Central Java were previously more influenced by freshwater rather than the marine sources which dominate today.
THE IMPROVEMENT OF BUILDINGS AND INFRASTRUCTURE CONDITION TO ANTICIPATE DEGRADATION PROCESS OF FISH-SMOKING CENTRE IN BANDARHARJO, SEMARANG Gagoek Hardiman
JOURNAL OF COASTAL DEVELOPMENT Vol 15, No 2 (2012): Volume 15, Number 2, Year 2012
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Abstract

The fish-smoking area in Bandarharjo is one of the significant industrial centers that processes fish as coastal resources. Its existence is crucial to support the characteristic of Semarang as a coastal city. The fish-smoking area, located on the bank of Semarang River, has existed since 1986. Local people keep maintaining the activities of smoking fish regardless the poor physical condition of the buildings and environmental infrastructure as a result of the high tide. In order to maintain the sustainability of fish-smoking activities, a research on the convenience of working space, physical condition of the building, and environmental infrastructure is needed.  Considering that fish-smoking industry can provide jobs for low educated people and produce alternative food for the people living in Semarang, therefore, the degrading condition of the buildings and environment in Bandarhardjo needs to be anticipated by applying the concept of space, building and environmental infrastructure quality improvement. 
INTEGRATED MANAGEMENT OF MANGROVES ECOSYSTEM IN LAMPUNG MANGROVE CENTER (LMC) EAST LAMPUNG REGENCY, INDONESIA Asihing Kustanti; Bramasto Nugroho; Dudung Darusman; Cecep Kusmana
JOURNAL OF COASTAL DEVELOPMENT Vol 15, No 2 (2012): Volume 15, Number 2, Year 2012
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Abstract

Mangroves forest ecosystem along the east coastal in Lampung Mangrove Center (LMC) Margasari Village is a renewable resources. It is a border between two ecosystem. Because of that situation, more than one stakeholders involved. There are department involues, Forestry Fisheries and Marine, and Agriculture Department in East Lampung District. Often, the policy of each department is not efficient and effective.  Based on that situation, on 2006, the mangroves management try to make an integrated model between the stakeholders.  In this research, It want to know the effectiveness of that model.  The samples in this research used Simple Random Sampling which they were 25 the people and the team of integrated management of University of Lampung and the East Lampung Regency government. The datas will be described and analysis with SWOT Analizing (Strength, Weakness, Opportunities, and Threats). The strategy of the integrated management will be defined after that.  Integrated management of mangroves ecosystem in Margasari Village have in good management of sustainability approach and increase the welfare of the people.  The position of the analzing of the integrated management is on the aggressive curve.  It is indicated that the integrated management has been done since 2006 have progressive development, between the people, government, and  University of Lampung. The strategies of management plan are education for the people on mangroves ecosystem functions and benefits, human resources development, law enforcement in break the rule in mangroves management (illegal loging and wild harvesting), development in international and national net working,  science and technology development, and  community empowerment and economyc increase. 
PROSPECT OF SEA CUCUMBER CULTURE IN INDONESIA AS POTENTIAL FOOD SOURCES Henneke Pangkey; Sartje Lantu; Lusia Manuand; JeffrieFredrik Mokolensang
JOURNAL OF COASTAL DEVELOPMENT Vol 15, No 2 (2012): Volume 15, Number 2, Year 2012
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Abstract

Sea cucumber is one of the sea treasures which has been used not only as luxury food for certain countries but also as medicines. Sea cucumber has become one of the most important products and it has high price in international market.For this reason, the exploitation of sea cucumber turns out to be excessive and disturbs its sustainability. Aquaculture is the best way to prevent this problem. The success of sea cucumber culture is very depend on seed availability and suitable food for larvae as well as juvenile along with growing out stadia for market requirement.
BOTTOM WALL CONSTRUCTION OF “JODANG” TRAP APPLIED SELECTIVELY TO BABYLON TIGER (Babylonia spirata) SNAIL SIZE Gondo Puspito; Agus Suherman
JOURNAL OF COASTAL DEVELOPMENT Vol 15, No 2 (2012): Volume 15, Number 2, Year 2012
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Abstract

The objective of this research was to obtain net mesh bottom wall construction of “jodang” trap that selective to babylon tiger snails size, i.e. only shell length of    l < 4.27 cm approximately could pass through. There were 3 designs shapes of bottom wall construction tested, i.e. rectangular shape of 2.4 ´ 2.8 (cm) and 2 diamond shapes with net mesh size of 5,6 cm and primary hanging ratio of  E1 = 0.7 and 0.5. The results showed that rectangular shape bottom wall trap construction  was better than those two other constructions. Only 6.78% of snails with l ³ 4.27 cm could escape the rectangular shape bottom wall trap construction. Whereas 41.90% and 17.46% of  snail shells with l ³ 4.27 cm could escape from both the diamond mesh bottom wall trap construction. According  to selectivity curve, the rectangular shape bottom wall trap construction could retained snails with shells length of  l ³ 4.33 cm. The two others retained shells length of  l ³ 4.14 cm and l ³ 4.60 cm.
THE EFFECTIVENESS OF Acanthus Ilicifolius IN PROTECTING TIGER PRAWN (Penaeus monodon F.) FROM Vibrio harveyi INFECTION Gina Saptiani; Slamet Budi Prayitno; Sutrisno Anggoro
JOURNAL OF COASTAL DEVELOPMENT Vol 15, No 2 (2012): Volume 15, Number 2, Year 2012
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Abstract

Sea holly (Achantus ilicifolius) is a mangrove plant that often used by coastal society as a traditional medicine.  It is potential to be developed as the sources of pharmaceutical products. This study aims at assessing the effectiveness of sea holly leaves as antibacterial agent and as an agent to enhance the durability of shrimp against Vibrio harveyi.  First, dried sea holly leaves were extracted with methanol, after that, it was fractionated with silica gel column method using solvent n-hexane, ethyl acetate, and n-butanol.  The treatments given to tiger prawn were crude extract, the fraction of ethyl acetate, and n-butanol, and it was given by immersion.   Next, the challenge test was conducted toward Vibrio harveyi.  As the result, the extract and the leaves of A. ilicifolius possess activities of inhibiting the growth of V. harveyi in vivo, reducing the prevalence of attacks and improving survival of prawn. In general, based on clinical symptoms and pathological anatomy, n-butanol fraction of the A.  ilicifolius leaves possess the best protection, along with ethyl acetate fraction and the crude.
ALTERNATIVE PRACTICE FROM COASTAL POND TO RECIRCULATION AQUACULTURE SYSTEM Ludi Parwadani Aji
JOURNAL OF COASTAL DEVELOPMENT Vol 15, No 2 (2012): Volume 15, Number 2, Year 2012
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Abstract

Coastal pond aquaculture used solar energy to produce oxygen via phytoplankton with their cultivation can be extensive such as the culture of low value cultured animals. Pond encompasses a larger culture area for juvenile or grow-out culture which is depending on their carrying capacity of the pond. There is no feeding and the amount of food available depends on pond management which can be increased by manuring.  As well as in hatcheries that require a very well environmental control, Recirculation aquaculture systems (RAS) tend to occupy a small area to culture high value species at high densities. The key parameter affecting RAS is the biological filtration system that removes metabolic and other waste products. This contains bacteria which break down the ammonia and nitrite in the water. Moreover, the food from RAS is supplied externally from cultured or formulated feed. Recirculation systems offer the advantage over pond aquaculture of being able to control the environment and water quality parameters to optimise fish health. For production of commodity food fish that are low in price, pond aquaculture is better than recirculation system due to their lower overheads and production cost as the environment acts as a natural water reconditioning system compared to money spent on water recirculation technology. In developing countries, pond will still remain dominant due to the ease of culture and the low initial investments. While, in developed countries, the growing concern about environmentally friendly discharges, the high labour costs and the need for controlling niche markets will result in the adoption of recirculation technology and the production of high value species at high densities. In comparison to pond culture, RAS offered more control and independent from the environment influence.
DISPERSION MODELING OF NATURAL RADIONUCLIDES 238U, 232TH, 226RA, 40K IN MURIA COASTAL WATERS Dwi Purwantoro Sasongko; S upriharyono; Wahyu Setiabudi
JOURNAL OF COASTAL DEVELOPMENT Vol 15, No 2 (2012): Volume 15, Number 2, Year 2012
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Abstract

Dispersion modeling of natural radionuclides 238U, 232Th, 226Ra, 40K in Muria coastal waters has been carried out in sea water and sediment surounding Tanjungjati B coal-fire power plant and nuclear power plant site’s candidate by applying the hydrodynamics model of unsteady 2-dimensional flexible grid. Oceanography data collecting of bathimetry, current, wave, tide and wind had been carried out on May 28, 2006 until June 2006. Updating data was conducted on April 27 up to April 29, 2011 by using Acoustic Doppler Current Meter Profiler (ADCP) to measure the wave and subsurface current with duration of 2x24 hours. Sea water and sediment samples were collected on April 22, 2011 in six locations (surounding Tanjungjati CPP) and on April 23, 2011 in 10 locations (surounding NPP site’s candidate). Samples were analyzed at Research Center for Safety Technology and Radiation Metrology Laboratory, National Nuclear Energy Agency, Jakarta on May 2011 until September 2011 by using spectrometri-γ analysis. Result shows that it can be identified and measured the natural radionuclides of 238U, 232Th, 226Ra, 40K in sea water and sediment. The study can be justified that natural radionuclides of 238U, 232Th, 226Ra, 40K was leachated from fly ash and bottom ash of coal burned Tanjungjati CPP to sea water. The hiyrodynamics model of unsteady 2-dimensional fexible grid by using CD Oceanography software for current plotting, ArcView GIS 3.3 software for bathimetric contouring and SMS 8.1 software for modeling of natural radionuclides dispersion in coastal waters one can applied for radionuclides dispersion of 238U, 232Th, 226Ra, 40K in Muria coastal waters.
EXPLORATION OF SKIPJACK FISHING GROUND THROUGH SEA SURFACE TEMPERATURE AND CATCHES COMPOSITION ANALYZES IN PALABUHANRATU BAY WATERS Domu Simbolon; Mario Limbong
JOURNAL OF COASTAL DEVELOPMENT Vol 15, No 2 (2012): Volume 15, Number 2, Year 2012
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Abstract

Fishing ground condition is usually affected by oceanographic parameters. One of the oceanographic parameter that had been used in forecasting the availability of pelagic species such as skipjack is sea surface temperature (SST). Skipjack fish is the main target for boat seine net fishery in Palabuhanratu Bay from June to October 2007. Information on skipjack fishing ground availability is very important in order to optimize fishing operation. The purposes of the study are: to determine the SST distribution, to analyze the catch composition of skipjack, to determine the relationship between SST and skipjack catch, and to forecast the skipjack fishing ground in Palabuhanratu Bay from August to October 2007. The research consist of two stages. The first stage was conducted in Palabuhanratu Bay waters in August-October 2007, using survey method, with ten samples of boat seine net (payang). The second stage conducted on December 2007 to collect the SST data, which downloaded from the internet. The range of SST in Palabuhanratu Bay waters ranged from 22oC - 29oC in August 2007, 21oC - 27oC in September 2007 and  20oC - 31oC in October 2007. The SST had no significant effect on catch volume of skipjack in Palabuhanratu Bay during August until October 2007, but gave  effect to the size distribution. The big skipjack distributed at the wide range of SST, but the small skipjack distributed at the narrow range of SST. The potential fishing ground of skipjack in Palabuhanratu Bay during September 2007 was found at Teluk Ciletuh, Ujung Karangbentang, Cimaja, Teluk Cikepuh, Ujung Genteng, and Gedogan waters.
THE DYNAMIC OF LANDSCAPE CHANGE AT COAST AREA, IN LABAKKANG SUBDISTRICT, PANGKEP REGENCY, SOUTH SULAWESI andi GUsti Tantu; S Soemarno; Nuddin Harahab; Ahmad Mustafa
JOURNAL OF COASTAL DEVELOPMENT Vol 15, No 2 (2012): Volume 15, Number 2, Year 2012
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Abstract

Development is a changing process to improve human standard of life that strongly related to the activities of natural resource utilization. It is frequently found that these activities  change the ecosystems and their resources.  Eventually, these changes will give serious impacts to the environments. The most distinct environmental problems are caused by resident migration to the coastal areas, coastal developments, and land limitation. Coastal reclamation is an example of human effort to respond to the land limitation in the coastal areas as observed in coastal areas of Labakkang Subdistrict. Reclamation activity is doing along the coast of Pundata Baji Village, whereas, in other villages, cutting off of mangrove areas as an alternative land expansion is increasingly practiced by the local communities. This Research was aimed to observe the landscape change from 1980 to 2010 at coast area in Labakkang Subdistrict. Each review considers Landsat Image Map (acquired in 1980); Landsat Image Map (acquired in 1990); Landsat  Image Map-7 Enhanced Thematic Mapper Plus (ETM+) (acquired in 2000); Spot Image 4 (acquired in 2005); and Spot 4 LAPAN (acquired in 2010). Result of research indicates that at coast area of Labakkang Subdistrict in 1980, there are 248.3 ha of mangrove vegetation, 2,756.63 ha inundation, and 4,157.0 ha open land. In 1990, there are 234.2 ha mangrove vegetation, 2,251.63 ha embankment, 933.2 ha rice field, and 582.0 ha open land. In 2000, there are 218.3 ha mangrove vegetation, 2,848.1 ha embankment, and 3,579.2 ha rice field. In 2005, it has 121.4 ha mangrove vegetation, 3,762.6 ha embankment, and 2,306.2 ha rice field. In 2010, it is found 48.9 ha mangrove vegetation, 5,029.35 ha embankment, and 749.98 ha rice field.

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