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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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MARICULTURE BASED ON THROPIC SAPROBIC INDEX ANALYSIS (Case Study: Coast of Sayung Distric Demak, Central Java Indonesia) Sri Rejeki; agung Suryanto; Johanes Hutabarat; Sutrisno Anggoro; R usmilyansari
JOURNAL OF COASTAL DEVELOPMENT Vol 15, No 3 (2012): Volume 15, Number 3, Year 2012
Publisher : JOURNAL OF COASTAL DEVELOPMENT

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Abstract

Coastal erosion in Sayung Distric, Demak Regency submerged 300 hectares of brackish water ponds.  However, after the local government management by soft  and hard barriers construction  resulting the formation of semi-closed coastal water area with the depth of 1 – 7 m in depth.  The condition of the this  eroded coastal water is physically degraded, idle and abandont.  The aims of this research were to evaluate ecological condition of the eroded coastal  water at Sayung for coastal aquaculture based on its Trophic Saprobic Index  values.  The research was carried out from September 2009- August 2010. The results show that the eroded coastal water at Morosari, Sayung District Demak Central Java is lightly to moderately polluted, however, ecol[ogically it is still suitable for coastal aquaculture activity, especially for cultured organisms which are at the lowest level of the food chain/the plankton feeder .
DISTRIBUTION OF NATURAL RADIONUCLIDES 40K AND 208Tl IN SURFICIAL SEDIMENTS OF SEMARANG WATERS Dwi P. Sasongko
JOURNAL OF COASTAL DEVELOPMENT Vol 2, No 1 (1998): Volume 2, Number 1, Year 1998
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Abstract

Distribution of natural radionuclides in surficial sediments of Semarang waters has been carried out by applying the gamma spectrometry analysis. Using the gamma spectrometry technique was employed to analyze the radiation exposure. Six natural radionuclides (K, TI, Pb, Pb, Ac and Ra) can be identified in sediments, along with two natural radionuclides (K and TI) in water. Distribution factor can be estimated from the ratio of these radionuclides in surficial sediment and the water. Result shows that the distribution factor for radionuclide K is 24.5097 – 33.5206 and for TI is 13.4383 – 42.1509.
GEOELECTRICAL RESISTIVITY METHOD FOR SALT/BRACKISH WATER MAPPING Nur Islami
JOURNAL OF COASTAL DEVELOPMENT Vol 14, No 2 (2011): Volume 14, Number. 2, Year 2011
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Abstract

A 2D geoelectrical resistivity method was used for detecting and mapping occurrence of salt/brackish water in the subsurface, North Kelantan - Malaysia. The North Kelantan plain is covered with Quaternary sediments overlying granite bedrock. The drainage system is dendritic with the main river flowing into the South China Sea. The geoelectrical resistivity surveys made up of eleven resistivity traverses at four different sites. The zone of brackish water is very clearly seen in the resistivity inverse model with position around 20-30 m depth. This aquifer is referred to second aquifer. As the final result, a map with the possibility of salt/brackish and fresh water interface can be generated.
INDONESIAN FISHERIES PHENOMENA: Development, Enhancement and Management Indah Susilowati
JOURNAL OF COASTAL DEVELOPMENT Vol 3, No 2 (2000): Volume 3 Number 2 Year 2000
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Abstract

Indonesia has a great endeavor in fisheries resources. However, most of the resources remain underutilized in some extents. At the same time, resources disparity is occurred in Indonesian fisheries. Tight competition among the resource users happen in fisheries with dense population. In such situation, thereafter, tragedy of common phenomena will happen. Managing fisheries resource in the condition which constitutes thousands of islands like Indonesia is not an easy task and should be quit costly in expenses. One of strategies that require less in cost and could promise a better achievement is through reviving the potency which belongs to the community (such as traditions, customs, beliefs, etc.) and with empowering community to manage the fisheries resource.
VERTICAL TEMPERATURE, THE FATE OF UP WELLING AND SPATIAL DISTRIBUTION OF FISH BIOMASS OF NORTH PAPUA WATERS Agus Hartoko
JOURNAL OF COASTAL DEVELOPMENT Vol 10, No 3 (2007): Volume 10, Number 3, Year 2007
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Abstract

The increasing need to introduce and highlight the analysis of deep water temperature (both horizontal and vertical) profile for up welling process and its relationship to fish biomass spatial distribution was inevitable. Especially to avoid the misleading interpretation of using only surface water temperature data for deep water fish biomass analysis.The paper analyze and revealed the fate / occurrence of up welling zone in adjacent of Halmahera islands through the analysis of both multi-layer horizontal and vertical temperature data. Further analysis on the temperature and fish biomass data revealed the close relationship of horizontal temperature pattern especially at depth of 80m with spatial distribution of total fish biomass (acoustic numeric data : in dB unit) and fish biomass (ton/mile square) with fish total-length above 30cm.
WILL CO-MANAGEMENT APPROACH BRING A GOOD PROSPECT FOR BABON RIVER MANAGEMENT IN SEMARANG, CENTRAL JAVA-INDONESIA? Indah Susilowati
JOURNAL OF COASTAL DEVELOPMENT Vol 6, No 1 (2002): Volume 6, Number 1, Year 2002
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Abstract

Semarang Municipality is passed by Babon river in the Eastern part. This river  flows from Ungaran in Semarang Regency at the upper-stream  and  streams down to Java sea  in Demak Regency.This river is utilised by various parties for multi-purposes. Thus, to manage Babon river and its watershed need coordination among the stakeholders. In this case, community as one of the competent stakeholders  is considered as the most important  role player who determine the success of sustainable river management. Babon river passes Semarang City longer than Semarang and Demak regencies. It seems  when the stakeholders  of Semarang pay more attention to Babon river will harvest more benefits compared to its costs. It  indeed needs  sharing in responsibility and understanding among the stakeholders along the watershed of Babon river. Collaborations between G to G (such as Germany and Indonesia) and Local Government (LG) to  LG are seriously needed to support the success of the river management. Nevertheless, many efforts have been made  on  it. As mentioned by Lilin (2000), the existing participation contributed by  community and key-persons along the Babon watershed in Semarang City were relatively low. The preliminary survey indicated that introducing co-management approach among the stakeholders  in managing Babon river will  provide  a good prospect in the future. Many evidences have shown the success of  co-management approach in managing natural resources in the third world countries in Asia, Africa and the developed ones. Babon river is a common resource, open-access to any parties and transboundary along three regions, thereby, need  protocol concept  to achieve the optimal  management. What are the priority and how co-management should be implemented in  Babon river are not easy questions but subject to further research.
THE DISTRIBUTION OF BENTHIC FORAMINIFERA IN CORAL REEFS COMMUNITY AND SEAGRASS BAD OF BELITUNG ISLANDS BASED ON FORAM INDEX Suhartati M. Natsir; Mukhammad Subkhan
JOURNAL OF COASTAL DEVELOPMENT Vol 15, No 1 (2011): Volume 15, Number 1, Year 2011
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Abstract

To check the feasibility of the environmental for coral reefs, several monitoring strategies exist, one of which making use of the foraminiferal community structure: FORAM Index, i.e. Foraminifera in Reef Assessment and Monitoring Index. The abundance of symbiont-bearing foraminifera should parallel coral abundance, if water quality is the major environmental control. This allows for the use of these foraminifera to quantify environmental quality with respect to coral health. The aim of this study is to study the benthic foraminiferal assemblages in coral reefs community and sea grass bad of Belitung Islands and to use that information to determine the environmental quality of their coral reefs based on FORAM Index. Sediments of Belitung Islands waters were sampled for their foraminiferal fauna at six sites i.e. Nasik Strait (four sites), Kudus Island and Bago Island on April 2010. Results of benthic foraminiferal quantitative analysis of the sediments in which collected from six sampling sites of Belitung Islands show that totally collected specimens 29 species of 18 genera. The most favorable place for coral growth is the free area (absence of coral, mangrove and seagrass) of Nasik Strait, but it only has 30 specimens of benthic foraminifera, with three species of symbiont-bearing foraminifera such as Operculina and Amphistegina. Whereas, the most abundant of benthic foraminifera is Nasik Strait 1 with typical substrate coarse sand and vegetated by coral reef. In other side, segrass bad of Nasik Strait is dominated by opportunistic foraminifera and only dwelled by Heterostegian, Calcarina, Elphidium, Ammonia, Acervulina, Spirolina, Quinqueloculina and Lenticulina. Moreover, the most abundant species of all sampling sites is Peneroplis pertusus.
A COMPARATIVE STUDY OF HEAVY METAL CONCENTRATIONS IN Nerita lineata FROM THE INTERTIDAL ZONE BETWEEN DUMAI INDONESIA AND JOHOR MALAYSIA Bintal Amin; Ahmad Ismail; Aziz Arshad; Che Kong Yap; M Salleh Kamarudin
JOURNAL OF COASTAL DEVELOPMENT Vol 10, No 1 (2006): Volume 10, Number 1, Year 2006
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Abstract

The concentrations of Cd, Cu, Pb, Zn, Ni and Fe were determined in the marine gastropod Nerita lineata collected on May 2005 from the intertidal zone of fourteen stations in Dumai, Indonesia (mean length 21.43 – 24.04 mm) and ten stations in Johor, Peninsular Malaysia (mean length 22.61 – 26.60 mm). The results of the present study showed that metal concentrations in the shell, operculum and soft tissue of N. lineata varied at different sampling stations. The mean concentrations of Cd, Cu, Pb, Zn, Ni and Fe in the samples collected from Dumai were 4.14; 5.90; 44.43; 3.74; 20.73; 24.91 μg/g in shell; 4.16; 7.31; 51.78; 17.63; 23.52; 30.60 μg/g in operculum and 0.71; 15.16; 9.34; 94.69; 5.08; 397.96 μg/g dry weight in the total soft tissue; whilst those collected from Johor were 4.18; 5.06; 59.84; 4.8122; 19.29; 31.60 μg/g in shell; 4.73; 6.51; 60.57; 19.48; 20.68; 34.92 μg/g in operculum and 1.24; 18.02; 19.75; 95.09; 5.57; 473.56 μg/g dry weight in the total soft tissue, respectively. Samples of N. lineata from both Dumai and Johor tend to show similar trend in metal accumulation in which the concentrations of Cd, Pb and Ni decreased in the order: operculum > shell > soft tissue whilst Cu, Zn and Fe in the order of soft tissue > operculum > shell. In general, samples from Johor accumulated higher heavy metal concentrations when compared to samples from Dumai, except for Cu and Ni in the shell and operculum, which exhibited vice versa situation. Higher concentrations of metals were recorded in samples collected from the stations close to the industrial and anthropogenic activities. However, most of the concentrations were still comparable to the previous reported studies from other geographical areas.
CHEMICAL ECOLOGY OF MARINE CYANOBACTERIAL SECONDARY METABOLITES: A MINI-REVIEW Lik Tong Tan; Beverly Pi Lee Goh
JOURNAL OF COASTAL DEVELOPMENT Vol 13, No 1 (2009): Volume 13, Number 1, Year 2009
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Abstract

More than 300 nitrogen-containing secondary metabolites have been reported from the procaryotic marinecyanobacteria. A majority of these compounds are of the polypeptide or mixed polyketide-polypeptidestructural class and they are a potential source of novel pharmaceuticals. In spite of the chemical richnessof marine cyanobacteria, not much is known regarding their ecological functions. To date only a handful ofmarine cyanobacterial compounds have been examined for their involvement in predator-prey interactions.This mini-review surveys the various chemical ecology studies conducted on marine cyanobacterialcompounds. From these ecological studies, many marine cyanobacterial compounds are known to deterfeeding by several species of marine predators. Such chemical defense may be crucial in maintaining thepopulation of marine cyanobacterial bloom in nature. In addition, a series of ecological studies from ourlaboratory revealed the anti-settlement properties of a number of benthic marine cyanobacterialcompounds. These studies suggested marine cyanobacteria as a potential source of natural antifoulants forthe control of fouling organisms.
SAXITOXIN IN GREEN MUSSELS (Perna viridis, Mytiliae), BLOOD COCKLE (Anadara granosa) AND FEATHERS COCKLE (Anadara antiquata, Arcidae) USING HIGH PRESSURE LIQUID CHROMATOGRAPHY Winarti Andayani; Agustin Sumartono
JOURNAL OF COASTAL DEVELOPMENT Vol 15, No 3 (2012): Volume 15, Number 3, Year 2012
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Abstract

Saxitoxin (STX) was measured in green mussels (Perna viridis), and  feathers cockle (Anadara antiquata, Arcidae) from Jakarta and blood cockle (Anadara granosa) from Jakarta and Indramayu. Samples were taken 7 times from fish market Muara Baru Jakarta and Karangsong Indramayu. All samples were collected from June up to October 2009. The aim of this research is to find out  the content of STX in the mussels. The mussels tissues  were homogenized, weighed and extracted with 0.1 M HCl. The supernatan were filtered by 0.45 μ nylon membran. Fluorescence oxidation of STX was carried out using 2% H2O2 in alkaline solution. Analysis was performed using HPLC equipped with a C18 column (4.6 mm×250 mm, 5 μm), fluorescence detection (ex 340 nm, em 400 nm) elution of acetonitrile/0.1 M ammonium formate solution (5:95, v/v, pH 6) at a flow rate of 1.0 ml/ min. The calibration graphs was prepared by injecting standards ranging from 0,5–20 ng/ml, giving an acceptable linearity (r = 0.999). Retention time of saxitoxin standard was detected at 5.467 min. Negative results were obtained for most of blood mussels from Indramayu with the exception of  the 4th and 7th sampling. Saxitoxin were detected   in Perna viridis and Anadara antiquata, Arcidae ranging from 0.87–5.39 µg/ 100 g and  0.14–0.9 µg/ 100 g wet tissues respectively.

Page 13 of 33 | Total Record : 328

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