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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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STUDY OF SOUND FREQUENCY OF RED SNAPPER (Lutjanus argentimaculatus) AS AN ATTRACTOR (LABORATORY SCALE) Aristi Dian Purnama Putri; A Asriyanto; Heri Sutanto; W Widiatini
JOURNAL OF COASTAL DEVELOPMENT Vol 13, No 3 (2010): Volume 13, Number 3, Year 2010
Publisher : JOURNAL OF COASTAL DEVELOPMENT

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Abstract

Fish have spesific characteristic of sound frequency. This sound frequency can be received by fish to responds. Connectivity between sound frequency and fish respond indicates that source of sound frequency has been to function as an attractor. The objectives of this research were to determine the sound frequency of L. argentimaculatus and to describe fish respond of the sound frequency that records as an attractor for fish to find to signal in a laboratory scale. Source of sound frequency was L. argentimaculatus with total length 17 – 22 cm that doing some activities to find feed. Attractor that used in this research was a to research sound editting frequency recording of L. argentimaculatus that was feeding activity and sound of feed target.Lowest frequency range of L. argentimaculatus was 100,8 Hz while highest frequency range was 3244,1 Hz with the intensity range was 30 dB to 57 dB. The significant response time difference of L. argentimaculatus was between morning and daytime observation and between daytime and evening observation.      
ACCUMULATION OF ALUMINIUM IN THE TISSUE OF GIANT FRESH WATER PRAWN (Macrobrachium rosenbergii de Man) EXPOSED TO ACIDIC WATER CONTAMINATED WITH ALUMINIUM SALT Sri Redjeki
JOURNAL OF COASTAL DEVELOPMENT Vol 6, No 2 (2003): Volume 6, Volume 2, Year 2003
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Abstract

Aluminium is known as competitive trivalent and its occurance in an acidic environment causes ionic disturbances in aquatic invertebrates and crustaceans. An investigation was conducted to determine the accumulation of aluminium in the tissue of giant fresh water prawn (M. rosenbergii de Man) exposed to acidic water  (pH 5.0) and more alkaline media (pH 6.5) contaminated by aluminium salt (0.3 mg/l of nominal concentration of Al).  A static test with regular water exchange was employed during the experiment. The first moulting was recorded in all treatments at the first week of the investigation.  Normal moulting period, i.e. 6 – 8 days after the first moulting was observed in 55% of prawns in the media with normal pH (pH 6.5).  A longer period, more than 10 days, was needed by prawn in the media at pH 6.5 with 0.3-mg/l aluminium, pH 5.0 and at pH 5.0 with 0.3 mg/l aluminiun.  The third moulting was only recorded at prawn in media at pH 6.5.  The elevated aluminium in the acidic media caused the highest mortality rate and there was no mortality recorded at normal pH.  Most of the mortality was observed before and soon after moulting. The elevation of 0.3 mg/l aluminium in the more acidic water (pH 5.0) increased the aluminium and decreased the calcium concentrations in the prawn tissue. However, the magnesium in the prawn’s tissue showed its highest consentration at pH 5.0 with 0.3-mg/l aluminium. The decrease of calcium concentration in the prawn’s tissue was always followed by the increase of concentration of aluminium significantly (P < 0.01).  This suggests that the aluminium interfers the intake of calcium from the media by the prawn.  However the magnesium intake was not affected.  As a conclusion, the elevated level of aluminium in the acidic media increased the accumulation of aluminium in the prawn’s tissue and influenced the moulting behaviour of the tested prawn by interfering the absortion of calsium and magnesium, i.e. decreasing the calcium and increasing the magnesium concentrations in the prawn tissue.
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
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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.
ACTIVITY OF NITRIFYING BACTERIA (AMMONIA OXIDIZER AND NITRITE OXIDIZER) IN BRACKISHWATER PONDS (TAMBAK) IN BENGKALIS ISLAND, RIAU PROVINCE Feliatra .
JOURNAL OF COASTAL DEVELOPMENT Vol 4, No 2 (2001): Volume 4, Number 2, Year 2001
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Abstract

A research study was carried out from April to July 1999, on brackishwater ponds in Bengkalis Island, Riau Province, Indonesia.  Observations and samplings were taken from three stations.  Six nitrifying bacteria were isolated from ammonium oxidizer and four from nitrite oxidizer. The nitrifying bacteria activity varied from 0,024 to 0,092 ppm/day for ammonia oxidizer, and from 0,032 to 0,052 ppm/day for nitrite oxidizer. These nitrifying bacteria can reduce the ammonia concentration; in the brackish water ponds. In the absence of nitrifying bacteria, the ammonia concentration was so toxic, it was killed the shrimp at 31 days after sampling
PHYLOGENETIC CHARACTERIZATION OF PSYCHROPHILIC ° BACTERIA ISOLATED FROM DEEP-SEA WATER OF THE NANKAI TROUGH Ocky Karna Radjasa; Kumiko Kita-Tsukamotoz; Hidetoshi Urakawal; Kouichi Ohwadai
JOURNAL OF COASTAL DEVELOPMENT Vol 4, No 3 (2001): Volume 4, Number 3, Year 2001
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Abstract

A screening among 4"C-culturable isolates obtainedfom dcep~sea water of Nankai Trough from a depth of approximately 4,000 m resulted in a total of 5 psychrophilic bacteria showing no growth at 20° C. Phylogenetic characterization based on l6S ribosomal DNA sequence analysis showed that the isolates belonged to the genus Colwellia, Moritella, and CNPT-3, which could be assigned to Psychromonas.
CHELATING ABILITY OF CRAB SHELL PARTICLES AND EXTRACTED ACETAMIDO GROUPS (CHITIN AND CHITOSAN) FROM Portunus sp TO LEAD (Pb2+) Moh Muhaemin
JOURNAL OF COASTAL DEVELOPMENT Vol 9, No 1 (2005): Volume 9, Number 1, Year 2005
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Abstract

Various toxic metal species, including lead, are produced rapidly by industrial activities and fossil fuelconsumption. The use of biological component as sorbents for heavy metals might be an alternativemethod to reduce a heavy metal concentration from various aqueous systems. Here, we used crab shellparticles and extracted acetamido component from Portunus sp (chitin and chitosan) to reduce theconcentration of lead (II). The crab shell was powdered, sieved, and added with lead (II) in various pHvalues. The lead (II) solution added to extract of chitin and chitosan was separated, to determine thechelating ability of them. The result showed that the removal efficiency of lead with crab shell depend onpH value, but it was less sensitive than that of the control without crab shell. Biosorption of chitin andchitosan showed different phenomenon. It showed that both chitin and chitosan absorb with the bestcapacity at pH 4.0. Chitosan has higher sorption than chitin for all treatments. 
ANTIBACTERIAL ACTIVITY OF A SECONDARY METABOLITE-PRODUCING CORAL BACTERIUM Pseudoalteromonas SPECIES ocky radjasa; Torben Marten; Thorsten Brinkoff; Hans-Peter Grossart; Agus Sabdono; Meinhard Simon
JOURNAL OF COASTAL DEVELOPMENT Vol 7, No 2 (2004): Volume 7, Number 2, Year 2004
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Abstract

A bacterium, collected at the surface of coral Acropora sp., TAB4.2 was successfully screened for secondary metabolites production based on PCR amplification of the non-ribosomal peptide synthetase gene. It was identified as closely related to Pseudoalteromonas luteoviolacea based on its 16S rDNA. TAB4.2 was found to inhibit the growth of all 5 coral-associated and all 5 pathogenic bacteria tested. To characterize the inhibiting metabolite, a 279 bp long DNA fragment was obtained and the deduced amino acid sequence showed conserved signature regions for peptide synthetases and revealed a high similarity to NosD (40 % identity), a multifunctional peptide synthetase from Nostoc sp. GSV224, and NdaB (44 % identity), a peptide synthetase module of Nodularia spumigena. �m es�`� ��� on their ecology. Due to this, water quality management in these ecosystems has become a necessity. Regular studies of the hydrological parameters are essential for this purpose, as they can assess the status of pollution and help in deciding the mitigation strategy.  Water quality of 26 km stretch of Thane creek, central-west coast of India was analyzed in 5 regions of the creek from May 1999 to April 2000. The study revealed spatial and temporal patterns. Heavy suspended solid load (avg. 5.736 gm/L), frequent hypoxia (DO<2.5 mg/L) coupled with excess nutrients like Phosphate-Phosphorus (avg. 0.26 mg/L) and Nitrate-Nitrogen (avg. 0.96 mg/L) were the main features of the creek. The Thane city region showed more deterioration of water quality compared to the other regions in the creek. In this region the suspended solid load showed an increase of 713.69% and dissolved oxygen decreased by 21.55% compared to the data of 1992-93. This can be attributed to the severe onslaught of activities in this region like solid waste dumping, construction of 3 new bridges, etc. since 1993, thereby affecting the flushing characteristic. Hence in order to protect and preserve such ecosystems, alterations to the environment should be meticulously planned.  
CHANGES IN OXIDATION AND REDUCTION POTENTIAL (Eh) AND pH OF TROPICAL FISH DURING STORAGE Eko Susanto; Tri Winarni Agustini; Eko Prasetyo Ritanto; Eko Nurcahya Dewi; Fronthea Swastawati
JOURNAL OF COASTAL DEVELOPMENT Vol 14, No 3 (2011): Volume 14, Number 3, Year 2011
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Abstract

Four tropical fish species, Thunnus albacares (Yellowfin tuna), Ephinephelus striatus (Nassau Grouper), Cyprinus carpio (Carp), and Osphronemus gourami (Gouramy), were assayed for oxidation reduction potental (Eh) and pH in different temperature,i.e.  ambient and chilled temperature.  Every species has different pattern of Eh and pH values. Eh values of tropical freshwater fish were higher than tropical marine fish, however pH values  four tropical fish have same trend. The rates of the Eh and pH changing in four tropical fish were faster at ambient storage and they were slower at chilled storage. The present study also demonstrated the relationship between Eh and pH.
INSECT CELLS AS HOSTS FOR RECOMBINAT PROTEINS Retno Murwani
JOURNAL OF COASTAL DEVELOPMENT Vol 1, No 1 (1997): Volume 1, Number 1, Year 1997
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Abstract

Since the development of recombinant baculovirus expression system, insect cell culture has rapidly gain popularity as the method of choice for production of a variety of biologically active proteins. Up to date tens of recombinant protein have been produced by this method commercially or non-commercially and have been widely used for research. This review describes the basic concept of baculovirus expression vector and the use of insect cells as host for recombinant proteins. Examples of the recombinant proteins produced by this system are given.
OCEAN OBSERVATION ON SST VARIABILITY AND SUBSURFACE SEA WATER TEMPERATURE OF THE NORTH PAPUA THE FATE OF EL_NINO 1997 & 2007 AND LA NINA 2002 : FIELD MEASUREMENT AND TRITON BUOY DATA Agus Hartoko
JOURNAL OF COASTAL DEVELOPMENT Vol 13, No 1 (2009): Volume 13, Number 1, Year 2009
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Abstract

The increasing need to introduce and emphasis the analysis of SST and its sub-surface layers of deepwater temperature (both horizontal and vertical) profile to analyze some oceanographic phenomenasuch as up-welling process and its relationship to its seasonal variability and spatial distribution wasinevitable. Especially to avoid the misleading interpretation of using only sea surface temperature datafor deep water fish biomass distribution analysis, etc. Field SST data of July – August 1997 wasmeasured by CTD (Conductivity-Temperature-Depth) sensors on board of RV. BARUNA JAYA IV withaccuracy of 0.01 °C. Field SST data of 2002 and 2007 was derived from TRITON Buoy data base withpermission of Jamstec-Japan. All field and TRITON buoy SST data were processed into a spatial SSTlayer using Kriging method with Er_Mapper (Licensed user) software, and overlaid on the bathymetriclayer. Average daily SST east monsoon 1997 (El Nino event) was 28.46°C, where as presumably LaNina event 2002 : the average daily SST was 29.75°C and for 2007 was : 29.83°C indicates a higher SST than both 1997 and 2002. Average daily SST of west monsoon 2007 was 29.69°C. Daily SST of 2007 east monsoon was about 0.08 - 0.5°C higher than the same season of 2002 (TRITON Buoy data).The paper analyze and revealed the fate / occurrence of up welling zone in adjacent of Halmahera islands as well as the Hot Event (HE) phenomena through the analysis based on multi-layer and subsurface horizontal of both horizontal and vertical temperature of the field measurement 1997 and 2002 and 2007 TRITON data. Spatial multi-depth-layer approach had been developed in the paper is important for the analysis of deep water large pelagic fishery such as tuna fishery and its spatial distribution pattern.

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