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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 6 Documents
 1 
Search results for , issue "Vol 4, No 1 (2000): Volume 4, Number 1, 2000" : 6 Documents clear
THE DIRECTION OF FISHERY DEVELOPMENT IN INDONESIA, AND SOME NOTES ON FUNCTIONAL CHANGE OF PEKALONGAN HARBOUR FROM PUBLIC TO FISHERY HARBOUR, 1940-1980 Sutejo K. Widodo
JOURNAL OF COASTAL DEVELOPMENT Vol 4, No 1 (2000): Volume 4, Number 1, 2000
Publisher : JOURNAL OF COASTAL DEVELOPMENT

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Abstract

The Java sea has abundant supplies of fish M various species In the past, along the northern coatl of Java, there were several fish landing centers along the northern coast af Java. The Report of the Commissie van ( Commission of) Mindere Welvaart { report] in 1905 mentioned that the existence of these places was related to the ecology of sea sources. Up to the end cf the colonial government, the policy in fish consumption was based on the import of fish, especially dried and salted fish. The policy was maintained up to the Indonesian era in 1961. Afterwards, fish needs was filled through a policy of sefsrwiciency. This policy was able to support efforts in fishery development. Pekalongan harbour was built in 1852 and opened in 1859 cu a public harbour for export-import Since the earlv Twentieth Century, the function of Pekalongan harbour has declined as a result ofthe modernization of Semarang harbour. In 1974, the Pekalongan harbour was the first harbour to be converted from a trade harbour into a special fishery harbour. The functional change and the development ofthe harbour in the following years are related to the great changes in fishery policy and developments in other areas of 1%.. Pekalongan harbour was tranjormed into one of the most interesting fishery harbours in Java because it has several advantageous factors such as topography, safety guarantee, local sources for informed capital,conducive policy of the central government, geography, and local availability ofmiddle level technology.
GEOMETRIC CORRECTION OF AERIAL PHOTOGRAPH OF SCANNING 600 DPI ` MEASUREMENT OF A COASTAL AREA (TAMBAKHARJO) Sardiyatmo .
JOURNAL OF COASTAL DEVELOPMENT Vol 4, No 1 (2000): Volume 4, Number 1, 2000
Publisher : JOURNAL OF COASTAL DEVELOPMENT

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Abstract

The objective of this research was to investigate how far is the deviation in measurement of an area of aerial photograph scanning 600 dpi 1 .· 5500 scale compared with the photographic map of I .· 1000 scale in Semarang municipality along with the use for measurement of the extent of land area. In order to scan 600 dpi the product of the geometry correction can be used to calculate the extent ofthe land area at an accuracy level of 0.38 m.
THE PERFORMANCE OF BI-FILTER ON THE PRODUCTION AND DISEASE INCIDENCE OF PRAWN (PENAEUS MONODON FAB.) Slamet Budi Prayitno
JOURNAL OF COASTAL DEVELOPMENT Vol 4, No 1 (2000): Volume 4, Number 1, 2000
Publisher : JOURNAL OF COASTAL DEVELOPMENT

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Abstract

It has been long known that the most potent factor that influences prawn production was unfavorable environment due to industrial, agriculture and habitat wastes as well as improper application of good husbandry management. This research was designed to study the effect of biological filter on the growth of tiger prawn, water qualilv, and disease incidence. 7`wo sets of experiments, namely field stddy and laboratory experiment were conducted . Field survey was carrted out to collect field data on actual husbandry practices, production, water and soil quality. Laboratory experiment was aimed at evaluating the efhctiveness of biologicalfilter and disease incidence. Juvenile prawn e (j 5 gr.) at a density of 15 animals/M2; 20 animals/M2, and 25 animals/M2 were used as experimental animals. The observed parameters were field productivity, growth, survival rate, water quolitv, bacterial counts, soil quality and disease incidence. Experiments were carried in 3 replicates. Field survey showed that prawn production decreased steephr at the third production cycle as low as 627.65 kg/Ha compared to the first cycle (1893. 28 kg/lla}. Most prawn were weak, and very vulnerable to diseases. Bacterial count was more than I0Jcfii/ml. Water quality rapidly declined as prawn grew especially during the second and third cycles. Laboratory experiment with biologicalfilter in contrast demonstrated better water quality and healthier prawn,. although water quality declined slightly along with both the age and density. The growth rate was better than during field trials; among three treatments there were signdicant dyferences; the survival rate was best at density of I 5 animals/M2 but, the best estimated production was reached by density of 20 animals/M2 producing 2645 kg/Ha/cycle without any problems for around 4 cycles. Disease incidence and parasites infestation was undetected in the tank during the experiment.
THE PROBLEMS OF COASTAL AND MARINE RESOURCES MANAGEMENT IN INDONESIA Supriharyono .
JOURNAL OF COASTAL DEVELOPMENT Vol 4, No 1 (2000): Volume 4, Number 1, 2000
Publisher : JOURNAL OF COASTAL DEVELOPMENT

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Abstract

It is a well known fact that parts of the coastal marine ecosystem, such as estuaries, mangrove, sea-weed beds, and coral reefs, are very productive . The primary production may go up to 10,000 g C/m2{vear in these systems. It t`s very high compared with the primary production in open seas that is only 50-100 g C/m2/year. As a result the rate of the secondary production, such as fish, and other marine faunas, which live in these system, are also high. Anthropogenic activities carried out in order to use the resources in coastal areas, such as destructive fishing practices, coral mining, mangrove cutting, may ayiectfish Hncluding other marine faunas) production. Considering the destructive nature of some human activities in the coastal areas, the Indonesian government has established several laws and regulations for marine environmental protection. These included the establishment of 37 marine conservation areas which cover an area of about 2,800,000 Ha. It is expected that these areas will be expanded to 30,000,000 Ha by the year 2000, but there is no assurance whether this expansion can be reached or not. In the meantime a strategt to [ind alternatives to destructive practices in coastal and marine ecosystems is being prepared.
THE POTENTIAL NEGATIVE IMPACT OF AIR LEAD POLLUTION ON CHILD DEVELOPMENT A PRELIMINARY STUDY IN TAMBAKLOROK, SEMARANG Amin Husni
JOURNAL OF COASTAL DEVELOPMENT Vol 4, No 1 (2000): Volume 4, Number 1, 2000
Publisher : JOURNAL OF COASTAL DEVELOPMENT

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Abstract

A review about potential negative impacts of air lead pollution especially on child development, based on a result ofa cross sectional study conducted in Tambaklorok-Semarang, an area with a very high air lead pollution, is reported. Subjects in the study were mothers who have lived more than three years in the area and their infants. The `subjects' characteristics, including age, height, weight, lead blood concentration (Pb- blood), Hemoglobin (Hb}, and the infants' developmental score were measured. The air lead concentration was measured for comparing to the air lead concentration reported by a previous research. Re-measurement ofthe Pb-air in August 1999 in Tambaklorok had a similar result with the Pb- air measured in August 1996 that was 100 times higher than that in a non·polluted Pb·air area. Statistical analysis showed that there was no signyicant correlation between the child Pb-blood and Matemal Pb-blood child ’s age, child ’s Hb, child ’s nutritional status that was calculated using Mass Body Index, and child development score, respectively. It seemed that child development was not influenced by the air lead exposure. The children were suffering fom anemia, but there was no signyicont correlation between the child Pb-blood and the child Hb.  
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
Publisher : JOURNAL OF COASTAL DEVELOPMENT

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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.

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