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Jurnal Ilmu dan Teknologi Kelautan Tropis

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Published by Institut Pertanian Bogor

ISSN : 20879423 EISSN : 2620309X DOI : https://doi.org/10.29244/jitkt

Biochemistry, Genetics & Molecular Biology Decision Sciences, Operations Research & Management Library & Information Science

Aims and Scope Journal of Tropical Marine Science and Technology (Jurnal Ilmu dan Teknologi Kelautan Tropis) is a scientific journal in the field of tropical marine science and technology. We have a aims and scope to focus in publishing a good quality scientific articles for dissemination of research results in the field of marine science and technology. Aims As an media of information and dissemination of research results in the field of marine science and technology, especially in the waters of Indonesia and Southeast Asia region, Could actively and continuously disseminate the best research results to various stakeholders, and; This Journal of Tropical Marine Science and Technology can improve the quality of research results and benefit stakeholders. Scope The article, published in this Journal of Tropical Marine Science and Technology covers a wide range of research topics in the field of: marine biology, marine ecology, biological oceanography, chemical oceanography, physical oceanography, dynamical oceanography, coral reef ecology, marine acoustic, marine remote sensing, marine geographical information system, marine microbiology, marine polution, marine aquaculture, post-harvest fisheries technology, integrated coastal management (ICM) marine biotechnology, air-sea interaction, ocean engineering,

Arjuna Subject : Umum - Umum

Articles 656 Documents

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THERMAL DISPERSION MODEL OF WATER COOLING PLTGU CILEGON CCPP DISCHARGE INTO MARGASARI COASTAL WATERS AT THE WESTERN COAST OF BANTEN BAY I Wayan Nurjaya; Heron Surbakti
Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 2 No. 1 (2010): Elektronik Jurnal Ilmu dan Teknologi Kelautan Tropis
Publisher : Department of Marine Science and Technology, Faculty of Fisheries and Marine Science, IPB University

Thermal dispersion model based on the hydrodynamics model was applied on PLTGU Cilegon (electric power industry based on gas and steam) at the coast of Margasari, Pulo Ampel District, Serang-Banten. This PLTGU used around 60.000 mP3P/hour of seawater as cooling water system. Therefore, it produced water with high temperature of about 5 PoPC higher than the sourounding of seawater temperature. This high water temperature was flowed out into the coastal waters. This study tried to predict their distribution according to southeast and northeast monsoon. Model verification was conducted both to hydrodynamics component (tide and current) and water temperature. The verification results show good enough patterns between the model results and field measurement.Key words: Bay of Banten, cooling water system, thermal dispersion, hydrodynamics model

MAPPING AND INDEX VEGETATION ANALYSES OF MANGROVE IN SAPARUA ISLAND, CENTRAL MOLUCCAS Harold J. D. Waas; Bisman Nababan
Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 2 No. 1 (2010): Elektronik Jurnal Ilmu dan Teknologi Kelautan Tropis
Publisher : Department of Marine Science and Technology, Faculty of Fisheries and Marine Science, IPB University

2TMapping and index vegetation analyses of mangrove in coastal areas of Saparua Island, Central Moluccas was conducted using Landsat 7/ETM+ satellite data acquired in April to May 2007. The results showed that the distributions of mangrove vegetation were concentrated in the north, south, and west of the region with the area of 218.88 ha (38.26%), 105.12 ha (18.38%), and 248.04 ha (43.36%), respectively. Total area of mangrove vegetation in this island was about 572.04 ha (5.72 kmP2P), or 3.49% of the island area. Vegetation indexes (NDVI) in the north, south, and west of the region were dominated by values of >0.7 (very high density).Keyword: Mangrove, NDVI, Landsat Satellite, Saparua, Central Maluku

4TEFFECTS OF GRAIN SIZE, ROUGHNESS, AND HARDNESS OF SEA FLOOR ON BACK SCATTERING VALUE BASED ON HYDROACOUSTIC DETECTION Sri Pujiyati; Sri Hartati; Wijo Priyono
Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 2 No. 1 (2010): Elektronik Jurnal Ilmu dan Teknologi Kelautan Tropis
Publisher : Department of Marine Science and Technology, Faculty of Fisheries and Marine Science, IPB University

3TBased on results of detection hydroacoustic, backscattering value from the first reflection (E-1) can describe the roughness and from the second reflections (E-2) can describe the hardness of sea floor. The objective of this study was to analyze the relationship between grain size, roughness and hardness with backscattering values using the hydroacoustic method. The results showed that the roughness, hardness, and diameter size fraction of fine sand substrate were greater than that of muddy sand substrate. The backscattering values of very fine sand substrate were also greater than that of muddy sand substrate.Keywords: Hydroacoustic, bottom, backscattering

THE MANGROVE OYSTER ( Crassostrea sp ) EFFECTIVENES S IN REDUCING CU IN THE POND WATER OF BLACK TIGER SHRIMP (Panaeus monodon) Muhammad Iqbal Djawad; Nova Bertha
Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 1 No. 2 (2009): Elektronik Jurnal Ilmu dan Teknologi Kelautan Tropis
Publisher : Department of Marine Science and Technology, Faculty of Fisheries and Marine Science, IPB University

Study of the mangrove oyster (Crassostrea sp) to reduce heavy metal (Cu) concentration on shrimp pond water and the black tiger shrimp’s (Penaeus monodon) body was conducted during ten days. Variable used in this research was the efficiency level of mangrove oyster as a treatment in the Cu contaminated waters to reduce the level of the Cu concentration. Survival and specific growth rate of shrimp were also observed and measured. Histological condition of the fish especially gills was also observed to determine the level of dama ge caused by Cu. The results showed that oysters (Crassostrea sp) were a proper type of organisms used as bio-treatment in reducing Cu not only in the shrimp pond water but also in the body of the shrimp.Oysters we re able to reduce heavy metals Cu concent ration up to 78% level to the normal level of heavy metal Cu for black tiger shrimp. Keywords: Mangrove Oyster, Shrimp, Efficiency Level, Copper

ORGANOCHLORINE PESTICIDES IN THE COASTAL SEDIMENT OF CITARUM ESTUARY, JAKARTA BAY: THE IMP ORTANT ROLE OF FINE FRACTION OF THE SEDIMENT AS THEIR AGENT TRANSPORT AND PROCESSES OF THEIR EARLY DIAGENESIS T. Pratono; H. Razak; I. Gunawan
Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 1 No. 2 (2009): Elektronik Jurnal Ilmu dan Teknologi Kelautan Tropis
Publisher : Department of Marine Science and Technology, Faculty of Fisheries and Marine Science, IPB University

DDT (1,1,1-Tricholor-2,2-bis(chlorophenil)ethane) and its two derivatives, DDD (1,1-Dicholor-2,2-bis(chlorophenil)ethane) and DDE (1,1-Tricholor-2,2-bis(chlorophenil)-ethylene) were identified in the coastal sediment of Citarum Estuary, Jakarta Bay.Eight stations of the sediment sampling were designed in order to obtain the changing of their concentration sadjacent to the estuary as possible input. Sediment samples were collected in the surface layer within a less than 5 cm depth. In addition to pesticides, texture of sediment and total organic carbon were analyzed. Generally, fine fractions (silt and clay) were predominant grain-size of the sediment ranging 21–35,8 % and 17,6–65,6 %, respectively, while total organic carbon (TOC) ranged from 0,30–1,49 %. Concentrations of p’,p’-DDT varied from 0,621–1,187ppb, concentrations of p’,p’-DDD ranged from 0,176–2,153 ppb and concentrations of p’,p’-DDE were from 0.181–2,254 ppb. The occurrence of total DDT (ΣDDT+DDD+DDE) tended to correlated positively to the fine fraction indicating as transport agent. DDD and DDE as DDT metabolites were formed by biological and chemical processes within predominantly aerobic condition. Keywords: pesticide, DDT, DDD, DDE, sediment, transport agent, Citarum, Jakarta Bay

THE GROWTH AND SURVIVAL STUDY OF PEARL OYSTER SEEDS (Pinctada maxima) BASED ON THE DIFFERENCE DEPTH LEVELS IN KAPO NTORI BAY, BUTON ISLAND M.S. Hamzah; Bisman Nababan
Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 1 No. 2 (2009): Elektronik Jurnal Ilmu dan Teknologi Kelautan Tropis
Publisher : Department of Marine Science and Technology, Faculty of Fisheries and Marine Science, IPB University

Extreme change in sea surface temperature that might be influenced by global warming has negative impact on the pearl shell farming in Kapontori Bay.This change occurred above tolerance threshold for pearl shell juvenile survival at 3-4 cm shell wide that caused its mortality.The study was conducted from 28 February to 28 May 2008 at the Kapontory Bay,Buton island. The research aimed to identify growth and survival of pearl oyster seeds(Pinctada maxima) on differences of depth level.This research is important especially for pearl farming development in Southeast Sulawesi waters,as a reference basis in an effort to improve seedling survival of pearl oysters that are highly vulnerable to extremechange in temperature conditions. The variance analyses showed that the depth levels did not significantly affect the survival rates of the pearl oyster seeds (P>0,05). However, based on depth levels,higher survival rates (96.67%)were found on the depth of 2 m.Some environmental parameters in relation to the growth and survival rate of pearl oyster seed were discussed in this paper. Keywords:Depth levels,survival rate, growth, pearl shell, Kapontori Bay

ANTIMICROBIAL ACTIVITIES OF METHANOL EXTRACT FROM UNIDENTIFIED SPONGE ASSOCIATED BACTERIA IN LEMUKUTAN ISLAND, KALIMANTAN BARAT Risa Nofiani; Siti Nurbetty; Ajuk Sapar
Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 1 No. 2 (2009): Elektronik Jurnal Ilmu dan Teknologi Kelautan Tropis
Publisher : Department of Marine Science and Technology, Faculty of Fisheries and Marine Science, IPB University

The increase of issues on the antibiotics resistant pathogenic bacteria has triggered high exploration for new antimicrobial compounds. One of the potential sources is sponge-associated bacteria. The aim of this study was to get sponge-associated bacteria extract containing antimicrobial activities. On the basis screening of antimicrobial activity using by streaking on agar medium, there were two potential isolates with antimicrobial activities namely LCS1 and LCS2. The two isolates were cultivated,then secondary metabolite product were extracted using methanol as a solvent. Minimum inhibitory concentrations (MICs) of extract LCS 1 were 1,000 μg/well for S. aureus, 950 μg/well for Salmonella sp.and 800 μg/well for Bacillus subtilis. Minimum inhibitory concentrations of extract LCS 2 were 500 μg/well for S. aureus, 1,050 μg/well for Salmonella sp., 750 μg/well for Bacillus subtilis, 350 μg/well for P. aeruginosa, 750 μg/sumur terhadap B. subtilis. Based on the MIC values, the two assay extracts have a relatively low antimicrobial activity. Keywords:Antimicrobial,Sponges associated bacteria,MICs

ISLAND S IDENTIFICATION IN LINGGA COUNTY RIAU ARCHIPELAGO PROVINCE BASE D ON TOPONY MY METHOD Yulius Yulius
Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 1 No. 2 (2009): Elektronik Jurnal Ilmu dan Teknologi Kelautan Tropis
Publisher : Department of Marine Science and Technology, Faculty of Fisheries and Marine Science, IPB University

The Survey of Islands Toponymy has been conducted in Lingga County Riau Archipelago Province on March-April 2004. The data were collected by field survey : by interviews andGlobal Positioning System (GPS) measurement. The result of the survey identified 455 islands apart of 223 islands have not been listed at DEPDAGRI (Ministry of Internal Affairs) and 232 islands have been named. Some of 244 islands from Dishidros TNI-Al Sea Map can be updated and 211 islands have been identified from filed survey. Keywords: GPS, Island, Lingga County, Toponymy

THE PATTERN OF WAVE TRANSFORMATION USING RCPW ave MODEL AT BAU - BAU COAST, SOUTHEAST SULAWESI PROVINCE Baharuddin Baharuddin; John I Pariwono; I Wayan Nurjaya
Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 1 No. 2 (2009): Elektronik Jurnal Ilmu dan Teknologi Kelautan Tropis
Publisher : Department of Marine Science and Technology, Faculty of Fisheries and Marine Science, IPB University

When wind-wave generated on deep water propagates into shallow water they will be transformed into several processes such as refraction, shoaling, reflection, diffraction, and finally collapsing. This research has objective to analyze the pattern of wave transformation which pro pagate into Bau-Bau coastal waters by using RCPWave Model as a numerical model solution to predict wave condition within the surf zone. The model showed that the wave transformation at Bau -Bau Coastal waters was influenced by coastal morphology and characteristic that was more open to the west (to the opensea) than to the east coast (bordered by Buton Strait). Wave transformation occurred from both sides, either from west or east side. When wave were broken at the western coast the wave high from west and east were 1.9 m and 0.5 respectively. At the eastern coast were 1.0 m and 0.7 m. The highest wave high occurred at head land or peninsula. Keywords: wave transformation, RCPWave, Bau-Bau Coast, refraction, shoaling,reflection, diffraction and collapsing

VARIABILITY OF CHLOROPHYLL-a CONCENTRATION OF THE NORTHERN SUMBAWA WATERS BASED ON Sea WiFS SATELLITE DATA Bisman Nababan; Diki Zulkarnaen; Jonson Lumban Gaol
Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 1 No. 2 (2009): Elektronik Jurnal Ilmu dan Teknologi Kelautan Tropis
Publisher : Department of Marine Science and Technology, Faculty of Fisheries and Marine Science, IPB University

Variability of chlorophyll-a concentrations of the northern Sumbawa waters was investigated based on SeaWiFS satellite data for the period of January 1998-December 2007. Chlorophyll-aconcentration was estimated employing OC4v4 algorithm. Chlorophyll-a concentrations of,SeaWiFS satellite data were obtained from the Goddard Space Flight Center, NASA archieve data. In general, fluctuations of chlorophyll-a concentration of the northern Sumbawa waters had three patterns i.e., the maximum with a range of 0,21-0,74 mg/m3 occurred during the West Season (November-February), the minimum with a range of 0.12-0.15 mg/m3 occurred during Transition Season I (March-April), and relatively high (second peak) with a range of 0.21-0.36 mg/m3 occurred during the mid-East Season until the beginning of Transition Season II (July-September).High chlorophyll-a concentration occurred during the West Season was closely related to the high rainfall, the possibility of vertical water mass mixing,and upwelling process in the northern coastal waters of Sumbawa. Meanwhile, the relatively high (second peak) of chlorophyll-aconcentration occurred in July-September was caused by the movement of water masses from the South of Makassar Strait containing relatively high chlorophyll-a concentrations and relatively low temperatures since upwelling processes occurred at this location in the same period. Keywords:Chlorophyll-a,northern Sumbawa waters, SeaWiFS, OC4v4, upwelling

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Home Page

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Contact Name Dietriech G. Bengen

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Phone +62251-8627323

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Editorial Address Departement of Marine Science and Technology Faculty of fisheries and marine science, IPB University Jln. Lingkar Akademik, Kampus IPB Darmaga, Bogor 16680, Indonesia

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Contact Name
Dietriech G. Bengen

Contact Email
dieter@indo.net.id

Phone
+62251-8627323

Journal Mail Official
dieter@indo.net.id

Editorial Address
Departement of Marine Science and Technology Faculty of fisheries and marine science, IPB University Jln. Lingkar Akademik, Kampus IPB Darmaga, Bogor 16680, Indonesia

Location
Kota bogor,

Jawa barat

INDONESIA