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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 328 Documents
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LABORATORY INVESTIGATION ON GRAVEL AND MIXED BEACHES DURING AN OBLIQUE WAVE ATTACK Christos Antoniadis
JOURNAL OF COASTAL DEVELOPMENT Vol 16, No 1 (2012): Volume 16, Number 1, Year 2012
Publisher : JOURNAL OF COASTAL DEVELOPMENT

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Abstract

An experimental investigation into the behavior of gravel and mixed (sand and gravel) beaches was carried out at the 3-D Wave Basin located at Franzius-Institute (Marienwerder) of University of Hannover, at a nominal scale of 1:1. The experiment aimed to provide full scale measurements of cross-shore processes on gravel and mixed beaches, during an oblique wave attack, with uniform slope and a trench. Measurements included sediment transport, cross-shore beach profiles and wave-induced currents, for regular and random wave tests, for both types of beaches. Analysis of both cross-shore and long-shore currents shown interesting behaviour for both gravel and mixed beach, especially at the trench. There were morphological differences between the two types of beach concerning the crest and the step formation, the onshore sediment movement, and the erosion below the SWL, concluding the general difference of their mobility.
TOXICITY AND BIOACCUMULATION OF LEAD IN Chlorella AND Dunaliella Muh Muhaemin
JOURNAL OF COASTAL DEVELOPMENT Vol 8, No 1 (2004): Volume 8, Number 1, Year 2004
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Abstract

The aim of this research was to observe the effect of body size in micro algae as significant factor responsible to bioaccumulation of Pb. The research was conducted in Balai Budidaya Laut Hanura, South Lampung using micro algae Chlorella and Dunaliella, observing various Pb concentrations in culture medium and dry weight of micro algae to describe their tolerance and sensitivity levels. Pb concentration in culture medium was determined using AAS (Atomic Absorbance Spectrophotometer) and micro algae biomass observed by optical density approach. Effective concentration of Pb as growth inhibitor of Chlorella and Dunaliella was 50 and 150 μg/l. Dunaliella has greater absorption ability than Cholorella. Less bioaccumulation in Dunaliella indicated high tolerance level to Pb. Dunaliella, whose wider cell surface, has a greater bioaccumulation ability than Chlorella..
IMPROVING PUBLIC SALT QUALITY BY CHEMICAL TREATMENT Diyono Ihsan; Istadi ,; Mohamed Djaeni
JOURNAL OF COASTAL DEVELOPMENT Vol 5, No 3 (2002): Volume 5, Number 3, Year 2002
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Abstract

The public salt produced by salt farmers in Juwana, Pat,i Central  Java, Indonesia with the NaCl content of about 92.86% (dry base) is still below the standard quality of industrial salt (98.5% of dry base).  Improving public salt quality has become an important topic of discussion. This research look into the influences of chemical compound, namely sodium hydroxide (NaOH), sodium carbonate (Na2CO3) and barium chloride (BaCl2) to reduce pollutant ion (Ca2+, Mg2+ and SO42-) in order to increase the percentage of NaCl content in public salt. The purification process was carried out in three series mixer. In this investigation,  100 ml of public salt solution is gradually treated by adding those compounds, which were varied from 0.50 to 3.50 gram with the step size of 0.50 gram. The results showed that the purity of NaCl could be enhanced up to 99.6% that was achieved by adding 2.00 gram o f NaOH, 1.50 gram of Na2CO3 and 2.50 gram of BaCl2. This purity is suitable to meet community and industrial demands
EFFECTS OF TEMPERATURE, SALINITY AND FEED ON THE SURVIVAL AND GROWTH OF JUVENILE SEA CUCUMBER, Bohadschia marmorata MJ Chu Yuan Kee; Chandani Appadoo
JOURNAL OF COASTAL DEVELOPMENT Vol 11, No 1 (2007): Volume 11, Number 1, Year 2007
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Abstract

The survival and growth of tropical sea cucumber, Bohadschia marmorata (Jaeger) was investigated Juvenile B, marmorata were collected in the wild from La Prairie, in the south west coast of Mauritius and was reared at Albion Fisheries Research Centre (AF RC). The sea cucumbers were stacked at a density of six individuals per tank in three separate experiments: temperature (26, 28 and 32”C), salinity (25, 30 and 36%a) and feed (macro algal paste and a mixture of macro algal paste supplemented with /5% powdered fish fee¢0. During temperature and salinity treatments, B. marmorata were fed with a macro algal paste anlv. Temperature and salinity treatments were monitored for 63 days and ked experiment for 35 days. B. marmorata showed a negative growth in all salinity and temperature treatments. Survival of B. marmorata was 9l.67 and 66.65% in temperature 28 and 32”C, respective. All B. marmorata survived at temperature 26 DC and had a specyic growth rate of ~0. 78% day". The specyic growth rate of B. marmorata at temperature 28"C and 32"C was —I. 03% day" and -/,23% day" respectivelv. B. marmorata displayed /00% survival rate at salinities 25 and 36%.;. and 9/.67% at salinity 30964; Specific growth rates of B. marmorata showed a descending trend in the order of salinity 25%.1 (·/.07% day") >30%a (-/.05 % day`,) >36%a (-0. 78 % day`!). Better growth was obtained when B. marmorata were fed with a mixture of algae and fish feed (0.3/% day"), as compared with ajeed containing pure algal paste only (-l.34%day"}. This study provides some indications on the rearing conditions for B. marmorata, but more studies are needed for rnariculture purposes.
THE GLUTATHIONE DIURNAL CYCLING IN Dunaliella salina Moh Muhaemin
JOURNAL OF COASTAL DEVELOPMENT Vol 12, No 1 (2008): Volume 12, Number 1, Year 2008
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Abstract

Glutathione is intracellular low molecular weight thiols as detoxification agent in most marine microalgae. The short continuous culture was used to describe diurnal cycle of intracellular glutathione during light: dark period. The result showed that glutathione tend to follow light period and minimum levels at the end of dark period. Cysteine exhibited twofold diurnal variations, maximum levels at the early dark period. Those may prove that glutathione may have an important role as an antioxidant in marine phytoplankton. 
A PRELIMINARY STUDY ON BENTHIC AND ARBOREAL FAUNA ASSOCIATED WITH MANGROVE Rhizophora Mucronata ON THE EAST COAST OF MAURITIUS (INDIAN OCEAN) WITH SPECIAL REFERENCE TO THE MOLLUSCA Chandani Appadoo; Nabiihah B. Roomaldawo
JOURNAL OF COASTAL DEVELOPMENT Vol 8, No 2 (2005): Volume 8, Number 2, Year 2005
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Abstract

Mangrove ecosystems are important as they harbour a diversity of life forms. This study aimed at studying the benthic and arboreal macrofaunal diversity and abundance associated with three naturally occurring mangrove forests of Mauritius, Western Indian Ocean. The mangrove areas included Roches Noires, Mahebourg and Pointe Maurice, on the east coast of the island. The field study was carried out at low tide during summer season from October 2003 to February 2004.  At each of the three sites, the arboreal and benthic macrofauna were sampled separately, using quadrats of 1 m x 1 m and 25 cm x 25 cm, respectively.  Sixty-four benthic and 42 arboreal quadrats were collected from Roche Noires, 40 benthic and 41 arboreal quadrats at Mahebourg and 40 benthic and 30 arboreal quadrats at Pointe Maurice. The results showed that benthic habitat is more diverse with regards to molluscan families (24 families) than the arboreal habitat (5 families). Pointe Maurice has a more diverse benthic fauna.  Relative percentage abundance and mean density of molluscan families are reported. Highest mean densities and relative abundance were recorded for the Family Littorinidae among arboreal macrofauna.  In benthic macrofauna, the highest mean densities and relative abundance were noted in Family Cerithiidae at Roches Noires and Mahebourg.
UTILIZATION OF CHITOSAN PREPARED FROM SHRIMP SHELL AS FAT DILUENT Hargono Hargono; M. Djaeni
JOURNAL OF COASTAL DEVELOPMENT Vol 7, No 1 (2003): Volume 7, Number 1, Year 2003
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Abstract

Shrimp shell waste from seafood restaurants and canned shrimp industries is potential to be used as chitosan source. This material contains 18.1% of chitin which could be converted into chitosan through demineralization, deproteination and deacetylation process. Chitosan is fine chemical used to adsorb fat from body, heavy metal absorbent, fat diluent and medicine. This research looked into the prospect of chitosan from shrimp shell as fats dilluent. The aims of this research are to study the influence of NaOH concentration on preparing chitosan from shrimp shell, and evaluate the performance of chitosan produced as fat diluent. As indicators, the purity of chitosan and the percentage of fats diluted are measured. This investigation was conducted in two steps involving the preparation of chitosan and the process optimation of fats dillution using chitosan. In this case, the NaOH concentration was varied from 20% to 60% with the step size of 10% to obtain highest quality of chitosan. Whereas, in the second step, the time of fats dilution and chitosan quality were varied to obtain optimum condition of fats dillution. The dillution time was varied from 10 to 30 minutes with incremental of 5 minutes. While, the chitosan quality was varied based the result of preparation step. The results indicated that the highest chitosan quality of 82.45% could be obtained in the percentage of NaOH of 60%. Meanwhile, in the fats dillution process, it showed that the highest percentage of fats dilluted is 96.57% that could be achieved at time dillution of 10 minute and chitosan quality of 82.45%.
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. 
SIMULATION MODEL OF THERMAL WATER DISCHARGE EFFLUENT FROM THE STEAM ELECTRICAL GENERATING POWER PLANT “TAMBAK LOROK” AT TANJUNG EMAS HARBOR POND SEMARANG Sunarsih .
JOURNAL OF COASTAL DEVELOPMENT Vol 1, No 3 (1998): Volume 1, Number 3, Year 1998
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Abstract

Simulation model is built for simulating the residual chiller which has now become hot water discarded through an outlet to Tanjung Emas harbor pond. The discarded water is called “thermal effluent” and will cause changes in sea temperature in surrounding areas. The figuring of the casual relationship among those factors is carried out by developing a subsystem model and building it from the model’s subsystems to make a big system. It shows the complexity of the water effluent model. To know the immensity of the effect of each factor and relationship with the simulation of the model. One chooses an approach in the analytical method of dynamic system which uses the program “Powersim version 2.01” copyright 1993 – 1995 ModellData U.S.A. The result of model simulation showed that the temperature effect on the physical-chemical characteristics will improve the water condition with diversity index and will decrease according to the temperature condition with respect to time.
CORAL RECRUITMENT ON REEF BALLTM MODULES AT THE BENETE BAY, SUMBAWA ISLAND, INDONESIA Imam Bachtiar; Windy Prayoga
JOURNAL OF COASTAL DEVELOPMENT Vol 13, No 2 (2010): Volume 13, number 2, Year 2010
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Abstract

Reef BallTM structure is a popular artificial reef module that has been invested in many countries. Publication on its efficacy in promoting coral recruitment however remains lack of study or publication. This present study was aimed to examine the pattern of coral recruitment on reef ball structure at the Benete Bay of Sumbawa Island, Indonesia. Thirty reef-balls (dome shape; 0.90 cm height, 1.20 cm diameter) were monitored after three years of deployment. The results of this study showed that nearly all coral colonies grew on the outer vertical surface and upper side of the reef balls. The recruit number varied a lot between 1-76 colonies per module. Most recruits were belonged to the Family Acroporidae, which contributed approximately 76 percent to the whole recruitment (640 colonies). Branching acroporiid was the most abundant colonies (55%). Pocilloporidae and Faviidae both contributed approximately nine percent to the total recruitment, while Poritidae contributed about three percent. Other coral families only had <1% contribution. The diameter of coral colonies which were growing on the reef balls varied between 5-290 mm. The number of recruit on the ball was very low at 10 meter depth (1-5 colonies per ball) that was likely to be affected by sedimentation. This study showed that reef ball module can be effectively used as a method in rehabilitating damaged coral reefs, and developing a proto-reef.    

Page 7 of 33 | Total Record : 328

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