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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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GROWTH RATES OF THE MASSIVE CORAL Porites lutea EDWARD AND HAIME, ON THE COAST OF BONTANG, EAST KALIMANTAN, INDONESIA Supriharyono .
JOURNAL OF COASTAL DEVELOPMENT Vol 7, No 3 (2004): Volume 7, Number 3, Year 2004
Publisher : JOURNAL OF COASTAL DEVELOPMENT

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Abstract

Growth rates (linear skeletal extension) and the timing of skeletal band formation were measured in eight specimens of the massive coral   Porites lutea at three sites (BK1, BK2, and BK3) and three depths, i.e. 1 m , 3 m, and 5 m in each site.  The sites were located in Bontang Kuala Regency, located about 7.5 km from the fertilizing industry, PT Pupuk Kaltim Tbk, Bontang. Growth rates were measured by using two techniques, i.e. X-radiograph and UV-light. Result of the study indicates that  the timing  of  the high density (HD) and low density (LD)  bands  is synchronous  at  the  three  locations.  A one year growth is characterized by three HD bands, one of which is usually very dense.  Illumination of the coral slabs by UV-light revealed a distinct fluorescent banding pattern on all coral specimens.  The data indicate  that the fluorescent bands are usually associated  with the  high density bands which are accreted during the wet  season period. It is  characterized  by high land  run-off  containing elevated concentrations of fulvic and humic acid compounds, and this apparently occurred almost through out the year. However fluorescent bands were absent from a  number  of density couplets,  known as “stress bands”.  The results suggest that in the present study the linier skeletal  extension rates,  based  on  X-ray  radiographic  techniques, are a  more accurate  measure  of  P. lutea growth  rates  then  fluorescence banding. Comparisons   of   the skeletal extension rates   indicate that the growth rates of P.  lutea are not significantly difference (p > 0.05) either between sites or depths. The average of coral growth rates ranged from 0.8-1.2 cm/year. These are significantly correlated (p < 0.01) with the amount of rainfall.  While the amount of rainfalls is not correlated with urea production of fertilizing industry, P.T.Pupuk Kaltim Tbk, which some of them are loss as dust (a core for water vapour) during process production.
ANTIBACTERIAL ACTIVITY OF BACTERIAL SYMBIONTS OF SOFTCORAL Sinularia sp. AGAINST PATHOGENIC RESISTANT BACTERIA S Sulistiyani
JOURNAL OF COASTAL DEVELOPMENT Vol 13, No 2 (2010): Volume 13, number 2, Year 2010
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Abstract

Infections caused by resistant microbes may cause failure to respond to medical treatments, resulting in prolonged illness and greater risk of death. Treatment failures also lead to longer periods of infection, which increase the numbers of infected people moving into the community and thus expose the general population to the risk of contracting a resistant strain of infection. Soft corals have been known to produce secondary metabolites, some of  which may have anticancer, antifouling, antibacterial activity. It has been suggested that natural products from marine invertebrates have striking similarities to metabolites of their association microorganisms. The aim of this study was to isolate and characterize bacterial symbionts of soft coral Sinularia sp. having antibacterial activity against pathogenic Multi Drugs Resistant bacteria (Staphylococcus aureus, Escherichia coli, and Enterobacter). Five were successfully screened for antibacterial against resistant pathogenic bacteria. Two isolates, SNTGZ10 and SNTGZ11 were found to inhibit the growth of MDR Staphylococcus aureus, SC4TGZ3 and SC4TGZ11 inhibited the growth of MDR Escherichia coli and Enterobacter sp. , while isolate SC4TGZ4 inhibit the growth of MDR Enterobacter sp. Molecular identification revealed that: SNTGZ10 and SNTGZ11 were closely related to Virgibacillus; SC4TGZ3 to Pseudovibrio; SC4TGZ4 to Alphaproteobacteria; and SC4TGZ11was closely related to Microbulbife. The bacterial symbionts of softcoral Sinularia sp. offer potential source of antibacterial compounds in particular against MDR strains.    
CHARACTERIZATION AND IDENTIFICATION OF STRAIN KM221, A NOVEL MCPA HERBICIDE-DEGRADING BACTERIUM ISOLATED FROM CORAL SURFACE, MENJANGAN KECIL ISLAND, KARIMUNJAWA Agus Sabdono; Ocky Karna Radjasa; Joedoro Soedarsono
JOURNAL OF COASTAL DEVELOPMENT Vol 6, No 3 (2003): Volume 6, Number 3, Year 2003
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Abstract

In this study, bacterial strain KM221 was isolated from coral   tissue in Menjangan Kecil Island, Karimunjawa, Indonesia. This strain is  facultative anaerobic  with MCPA (2-methyl-4-chlorophenoxy acetic acid) serving as the only known energy sources.  Microscopy  of isolate revealed that strain KM221 is gram-positive, catalase-positive,  rod, spore-forming bacterium, motile,  opaque, hair-like outgrowth and unpigmented colonies. The bacterium could not be identified on the basis of its carbon-source-utilization pattern, but a partial sequencing of the 16S rDNA analysis suggest that this strain is closely related to Bacillus iodinum.The ability to degrade MCPA herbicide was examined qualitatively in EMBA indicator medium.  This bacterium grew exponentially with MCPA as  the sole source of energy and carbon. The maximum growth rate (m max)  and the  saturated concentration on MCPA (Cs) were determined to be  0.8024 h-1 and  5.10 mg/l MCPA, respectively.
SUSTAINABLE MANAGEMENT OF MRINE TOURISM: SOME ECONOMIC CONSIDERATIONS *) Derrin Davis
JOURNAL OF COASTAL DEVELOPMENT Vol 1, No 2 (1998): Volume 1, Number 2, Year 1998
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Abstract

Marine tourism is a rapidly growing phenomenon world-wide. Concerns arise that    important marine resources, such as coral reefs, are used sustainably for recreation and other pursuits. A number of possible management strategies exist that might contribute to such result should considers the followings: property-rights;user-pays;regulation;education and code of conduct;permanent mooring;socio-economic research. It is also clear that no one management strategy will ensure that Indonesia’s significant  coral reef and other marine are conserved and used in sustainable fashion. Rather, a judicious    blend of the use of economic instruments and concepts, regulation, education, and “site-hardening” (e.g. by use mooring) is required to ensure that marine tourism is sustainable.
PRELIMINARY STUDY ON EVOLUTION OF METALS CONTAMINANT RECORDED IN THE COASTAL SEDIMENTS OF SEMARANG WATERS S Edi Suyarso; Tjutju Susana
JOURNAL OF COASTAL DEVELOPMENT Vol 13, No 3 (2010): Volume 13, Number 3, Year 2010
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Abstract

The evolution of heavy metals contaminant of Cu, Zn and Hg at two main river mouths of Semarang waters have been carried out on June 2009 through sediment cores, ages determination and supporting with population and industry statistical  data background. Heavy metals found at West Banjir Kanal river mouth may be associated with natural origin on the contrary the increase of metals concentration found at East Banjir Kanal river mouth is strongly correspond with population and industrial increases since industrial decades. Objective of research is to collect heavy metals contaminant concentration changed data over 30 years which have been recorded and saved in the layers of sediments in Semarang coastal waters. The goal of research is to reconstruct the evolution of contaminant concentration chronologically since industrialization decade. Method used in the research is data analysis through sediment cores supported both population and industrial statistical data.    
EXPENSES AND YIELDS IN MILKFISH BRACKISHWATER POND CULTIVATION A Descriptive Account of Tambak Cultivators and their Households in “Sumbersari” Nurdien H Kistanto
JOURNAL OF COASTAL DEVELOPMENT Vol 5, No 1 (2001): Volume 5, Number 1, Year 2001
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Abstract

Methods of milkfish brackishwater pond cultivation consist of fry pond (for fry to fingerling rearing), milkfish brackishwater pond type 1 (designed for the cultivation of milkfish fingerlings to adult size) and milkfish brackishwater pond type 2 (for the cultivation of fry to adult or marketable size milkfish). Milkfish brackishwater pond cultivation is profitable, especially when the cultivation unit is larger. This account of milkfish brackishwater pond cultivators describes the details of expenses and yields of cultivating milkfish brackishwater pond as practiced by 4 (four) cultivators in “Sumbersari,” a coastal village in north Central Java.
THE ABUNDANCE OF ZOOPLANKTON AS SECONDARY PRODUCER AT AWUR BAY IN THE NORTHERN CENTRAL JAVA SEA Hadi Endrawati; Muhammad Zainuri; Hariyadi .
JOURNAL OF COASTAL DEVELOPMENT Vol 4, No 1 (2000): Volume 4, Number 1, 2000
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Abstract

The diversity of zooplankton {as Secondary Producer) were observed at seagrass, mangrove and coral reef area at Awur Bay, in Jepara Waters. The observation were made fom August, 13 to September, 10, 2000, atfour daibr intervals : at 09.00 A.M., 12.00 noon ,3.00 P.M. and 6,00 PM. The zooplankton abundance at the seagrass area are 33 73—6497 individuals/ml with an average of 5329 individuals/ml , at the mangrove area 4132»5970 individuals/mg with an average of 5177 individuals/mj , and at the coral reef area 3061-4079 with average of 3599 individuals/ml. The zooplankton di\}ersity at the seagrass area are 2,1594»2,2917, with an average of 2,2289, at the mangrove area 2, 0925»2,4962 with an average cf 2,5130 and at the coral reefarea 1,9227- 2,1181 with an average of 2,0306 On the basis of the zooplankton abundance and diversity at seagrasr, mangrove and coral reef area of the Awur Bay, the averages at the Jepara Waters can be regarded as an indicator of marine productivity. The three locations observed displays a direct interre lation as the habitat of zooplankton.
STUDY OF METAL CONTAMINANT LEVEL IN THE MAHAKAM DELTA: SEDIMENT AND DISSOLVED METAL PERSPECTIVES Fitri Budiyanto; Lestari .
JOURNAL OF COASTAL DEVELOPMENT Vol 16, No 2 (2013): VOLUME 16, NUMBER 2, YEAR 2013
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Abstract

The Mahakam Delta in East Kalimantan contains large number of natural resources specially hydrocarbon sources. Anthropogenic activities have influenced this ecosystem for many years. The aims of this work were to find out dissolved metal and metals in sediment distribution in this area and to find out contaminant level based on allowable guidelines. Twenty nine stations were sampled within the delta and metal content analyses, both in sediment and water column, were established for Cd, Cu, Ni, Pb and Zn. Sediment analyses were conducted using US EPA 3050B method and dissolved metals analyses were conducted using Back Extraction method. Cd, Cu, Ni, Pb and Zn in sediment had 0.07 mg/kg dw, 18.64 mg/kg dw, 35.62 mg/kg dw, 10.56 mg/kg dw and 74.95 mg/kg dw in maximum concentration respectively. Whereas dissolved Cd, Cu, Ni, Pb and Zn had 0.001 mg/l; 0.003 mg/l; 0.003 mg/l; 0.013 mg/l and 0.003 mg/l in maximum concentration respectively. Based on allowable guidelines, metals contaminat levels, both in sediment and water column, were below permitted value.
DETERMINATION OF MERCURY’S BIOACCUMULATION FACTOR IN MILK FISH (Chanos chanos) OF SEMARANG MUNICIPALITY FISHPONDS USING NEUTRON ACTIVATION ANALYSIS Slamet Budi Prayitno
JOURNAL OF COASTAL DEVELOPMENT Vol 3, No 3 (2000): Volume 3 Number 3 Year 2000
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Abstract

Determination of bioaccumulation factor of mercury (200Hg) in chanos chanos of Semarang municipality fishponds has been carried out by applying the neutron activation analysis (NAA) and gamma spectrometry analysis. The gamma spectrometry technique was employed to analyze the gamma radiation exposure from activated samples. The heavy metal 200 Hg can be identified in water and milk fish (Chanos chanos), along with natural radionuclides 40K in water. The concentration of Mercury in the water at the 3 villages was 0.950 10-6 ppm, 284 10-6, and 350 10-6 ppm respectively. Whilst mercury concentration in the milk fish was 186 10-3, 068 10-3, and 098 10-3 ppm for Mangunharjo, Mangkang, dan Karanganyar respectively. Bioaccumulation factor can be estimated from the ratio of these heavy metal element in the sample and the water. Result shows that the bioaccumulation factor for mercury at 3 villages (Mangunharjo, Mangkang dan Karanganyar) is 195.942, 238.961, 279.614 respectively.
DESTRUCTIVE FISHERY AND FISHERY SUSTAINABILITY ASSESSING FISHERY SUSTAINABILITY USING A MULTICRITERIA PARTICIPATORY APPROACH : A Case Study of Small Islands in South Sulawesi Budiati Prasetiamartati; Akhmad Fauzi; Rokhmin Dahuri; Achmad Fahrudin; Hellmuth Lange
JOURNAL OF COASTAL DEVELOPMENT Vol 9, No 3 (2006): Volume 9, Number 3, Year 2006
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Abstract

The sustainability in the integrated human and nature systems or social–ecological systems(SES) of reef fishery needs attention, because the livelihood of many coastal communities is dependentupon it. Likewise, coral reef ecosystem is important marine resource as a source of biodiversity, aspawning aggregation for various reef fish and biota. However, coral reef ecosystem in South Sulawesihas been pressured by reef-related fishing activities, which include destructive practices of bomb andpoison fishing.This study assesses the condition of fishery sustainability in five selected small islands situated inTaka Bonerate Marine National Park and Spermonde Archipelago, South Sulawesi. Multi-criteriaanalysis (MCA) is used as a decision-making tool to analyze and evaluate multiple indicators under aparticipatory group decision-making environment (Mendoza and Prabhu 2004). Four variable criteriaof sustainability indicators are included, namely ecological-criterion indicators, economic-criterionindicators, social-criterion indicators, and institutional-criterion indicators. The result of theassessment is analyzed with the state of coral reef and the state of destructive fishery in the area. 

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