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INDONESIA
Marine Research in Indonesia
Published by Lembaga Ilmu Pengetahuan Indonesia
ISSN : 02162873     EISSN : 24432008     DOI : -
Core Subject : Science,
Earth & Planetary Sciences
MARINE RESEARCH IN INDONESIA (MRI) has been published since 1956 by Indonesia's oldest marine research institute, the Research Center for Oceanography of LIPI (Indonesian Institute of Sciences). MRI focuses on physical, chemical, biological, geological oceanographic as well as coastal management studies in the Indonesian seas and the adjacent Indo-Pacific region.
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Articles 16 Documents
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Search results for , issue " Vol 33, No 1 (2008)" : 16 Documents clear
OCCURRENCE OF Gymnodinium catenatum IN THE GULF OF THAILAND Lirdwitayaprasit, Thaithaworn; Panuksubaksul, Darin; Takata, Yoshinobu; Sato, Shigeru; Kodama, Masaaki; Fukuyo, Yasuwo
Marine Research in Indonesia Vol 33, No 1 (2008)
Publisher : Research Center for Oceanography - Indonesian Institute of Sciences (LIPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (3034.522 KB) | DOI: 10.14203/mri.v33i1.510

Abstract

A clonal culture of Gymnodinium catenatum was established from a plankton sample collected from Leamthan, Chonburi Province, in the Upper Gulf of Thailand. The culture was maintained at 28±1°C under light intensity of 70 [tmol photons m-2 s-1 with 12:12 L:D cycle. Cells were harvested at late exponential phase and extracted with 0.03 M acetic acid. The HPLC analysis on thus obtained extract revealed that toxins consist of N-sulfocarbamoyl toxins, Cl and C2, as major components. GTX1, GTX2, GTX3, GTX4 and dcSTX were also detected as minor components. The toxin profile of this clone is different from clones of G. catenatum found in Singapore which was dominated by the highly potent carbamate toxins, primarily GTX 1 and 4 with less amounts of GTX2, GTX3, neosaxitoxin, and saxitoxin. No N-sulfocarbamoyl, decarbaomyl, or deoxy-decarbamoyl toxins were detected.
THE COMMUNITY STRUCTURE OF SEAGRASS IN ENGGANO ISLANDS, BENGKULU Farid, M. A.; Rasidi, S.; Patria, M. P.
Marine Research in Indonesia Vol 33, No 1 (2008)
Publisher : Research Center for Oceanography - Indonesian Institute of Sciences (LIPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (4025.17 KB) | DOI: 10.14203/mri.v33i1.501

Abstract

The community structure of seagrass in Enggano Islands has been studied in August 2004. The aim of the study was to assess the seagrass community including species composition, density, and distribution pattern. The study was executed using transect quadrat methods, where seagrasses were counted in quadrats of 50 cm2. The result showed that the Enggano Islands seagrasses consist of seven species Enhalus acoroides, Halophila ovalis, Thallasia hemprichii, Cymodocea rotundata, Cymodocea serrulata, Halodule uninervis, and Syringodium isoetifolium. The highest density occurred in Dua Island dominated by Thallasia hemprichii (363.3 shoots m-2), while the lowest density occurred in Merbau Island dominated by Enhalus acoroides (0.4 shoot m-2). The highest diversity index (HB) occurred in Kiape Bay (1.446) and the lowest in Merbau Island (0.634). In general, seagrass community in Enggano Islands was dominated by Thallasia hemprichii. All species has clumped distribution pattern (Id > 1).
HYDROCARBONOCLASTIC BACTERIA FROM JAKARTA BAY AND SERIBU ISLANDS Darmayati, Yeti; Harayama, Shigeaki; Yamazoe, Atsushi; Hatmanti, Ariani; Sulistiani, -; Nuchsin, Ruyitno; Kunarso, Djoko Hadi
Marine Research in Indonesia Vol 33, No 1 (2008)
Publisher : Research Center for Oceanography - Indonesian Institute of Sciences (LIPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (9627.525 KB) | DOI: 10.14203/mri.v33i1.506

Abstract

Jakarta Bay has been known as one of the most polluted marine environment in Indonesia, with no exception by oil. Seribu Islands waters, located in the north of Jakarta Bay may have been impacted by this polluted condition.It’s sometimes also hit by oil spillage from pipe leakage. The purpose of this study is to isolate and identify hydrocarbonoclastic bacteria (oil and Polyaromatic Hydrocarbon degrading bacteria) from Jakarta Bay and Seribu Island waters. The bacteria were isolated from water and sediment/sand. Isolation was prepared by enriched samples in SWP medium with Arabian Light Crude Oil (ALCO). Screening for PAH degrading bacteria has been completed by using sublimation plate method in ONR7a medium and screening for oil degrading bacteria were conducted by using oil plated method with the same medium. Bacteria identifications were done based on l6sRNA gene. The results were analyzed using BLAST and showed that 131 potential hydrocarbonoclastic bacteria have been isolated from Jakarta Bay and Seribu Island waters. Most of them were oil degrading bacteria (41.98%) and the rest were PAH degrading bacteria. Oil pollution level may impact the number of strain of hydrocarbonoclastic bacteria isolated. Among the hydrocarbonoclastic bacteria isolated from Jakarta Bay and Seribu Islands, Alcanivorax, Marinobacter, Achromobacter and Bacillus were common hydrocarbonoclastic genera in Jakarta Bay and its surrounding waters. Alcanivorax spp. is important oil and PAH-degrader found not only in temperate waters, but in tropical waters as well.
MORPHOLOGIAL PLASTICITY OF HALODULE SPECIES IN RESPONSE TO DIFFERENT ENVIRONMENTS Bujang, Japar Sidik; Nazri, Norhapizah Ahmad; Zakaria, Muta Harah; Arshad, Azis; Ogawa, Hisao
Marine Research in Indonesia Vol 33, No 1 (2008)
Publisher : Research Center for Oceanography - Indonesian Institute of Sciences (LIPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (8797.3 KB) | DOI: 10.14203/mri.v33i1.457

Abstract

Halodule species is widely distributed along the south and east coasts of Peninsular Malaysia, Sabah and Sarawak. Five locations were selected for the study based on different habitat characteristics; sub-tidal shoal (Merambong-2 sites; Tg. Adang Laut-2 sites), coastal lagoon (Merchang-2 sites), inter-tidal beach front (Lawas-l site) and reef atoll lagoon (Pulau Layang-Layang-l site). Samplings and collections of Halodule plants were conducted from August 2002 until May 2004. The result of the study found that Halodule species are found at depth.of -1.5 to-2.7 m in various habitats with substrates from sandy, coralline sand, calcareous sandy-mud, sandy-mud to muddy substrates and can survive in a wide range of salinity, 18-34 psu. They adapt in th,e different environmental conditions through changes in morphology. Water depth (associated with ambient light), sediment type and sediment depth have an influence on the morphology of vegetative components e.g. leaf length, leaf width, erect stem length and rhizome growth pattern. Leaf tip morphology was not affected by habitat types and the environmental characteristics. Leaf tips for H. uninervis are similar in morphology between young and mature leaves. Leaf tips for H. pinifolia varied with an obvious differences between young and mature leaf tips.
THE DISTRIBUTION OF HEAVY METALS IN SEDIMENT OF JAKARTA BAY Rochyatun, Endang; Rozak, A.
Marine Research in Indonesia Vol 33, No 1 (2008)
Publisher : Research Center for Oceanography - Indonesian Institute of Sciences (LIPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (5824.927 KB) | DOI: 10.14203/mri.v33i1.511

Abstract

A survey on heavy metal content in seawater and sediment was conducted in Jakarta Bay in May and October 2004. There is indication of significant presence of heavy metal in sediment. The contents of heavy metals in sediment at the western part of Jakarta Bay varied as follows: Pb = 10.67-35.19 ppm, Cd = 0.04-0.30 ppm, Cu = 7.41-74.70 ppm, Zn = 76.99-497.53 ppm and Ni = 4.58-18.75 ppm. At the central part of Jakarta Bay, they varied as Pb = 6.69-64.44 ppm, Cd = 0.01-0.442 ppm, Cu = 1.19-40.60 ppm, Zn = 53.87-275.68 ppm and Ni = 4.09-11.88 ppm and at the eastern of Jakarta Bay, Pb content varied between 3.64 and 43.97 ppm, Cd = <0.001-0.320 ppm, Cu = 0.82-36.47 ppm, Zn = 78.27-230.68 ppm and Ni = 4.58-11.02 ppm. The concentration of Pb in May and of Cu in Octobei 2004 were found higher near the coast and decreases towards the open sea, which is commonly found in front of estuary such Angke and Cengkareng Drain. The concentration of Cd in Jakarta Bay was constant at all stations and does not show any correlation with the distance of station and estuary. Heavy metals content in sediment was high in Jakarta Bay.
THE POTENTIALLY TOXIC BENTHIC DINOFLAGELLATES ON MACROALGAE AT THE REEF FLAT OF SERIBU ISLANDS, NORTH JAKARTA - INDONESIA Widiarti, Riani; Murtiningsih, -; Suwarti, -; Mutaqin, Ahmad; Kurnia, Gud Elina
Marine Research in Indonesia Vol 33, No 1 (2008)
Publisher : Research Center for Oceanography - Indonesian Institute of Sciences (LIPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (4073.649 KB) | DOI: 10.14203/mri.v33i1.462

Abstract

The Ciguatera Fish Poisoning (CFP) causing microorganisms were observed at the reef flat of Penjaliran Barat Islands and Pramuka Islands District, Seribu Island National Park, North Jakarta, Indonesia. Of the samples collected, four potentially toxic benthic dinoflagellates species were found, which are Gambierdiscus toxicus, Prorocentrum concavum, Prorocentrum lima, and Ostreopsis lenticularis. The dinoflagellates were found attached on the brown macroalgae Padina and Sargassum. Most of the benthic dinoflagellates from both locations were found in Pramuka Islands District, the inhabitated islands where human activities which could damage the coral reef areas were relatively high. Beside the macroalgae substrate preference of each dinoflagellate species, several environmental factors were also obtained in this research.
MEIOBENTHIC COMMUNITY OF SUNGAI PULAI SEAGRASS BED, MALAYSIA Kassim, Zaleha; Diyana, Farah; Fathi, Mohd; Ahmad, Amirudin
Marine Research in Indonesia Vol 33, No 1 (2008)
Publisher : Research Center for Oceanography - Indonesian Institute of Sciences (LIPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (4083.792 KB) | DOI: 10.14203/mri.v33i1.502

Abstract

Meiobenthos inhabiting the seagrass bed of Sungai Pulai estuary, Johor, was studied for the differences in community structure. Sampling was carried out using a hand corer during the lowest tide in December 2006. Three stations were chosen that were located at the upper estuary, lower estuary and at the sea area. Cluster analysis dendrogram of Bray-Curtis similarity showed the similarity level at about 70-75% and from the MDS plot, it is found that communities at upper estuary were separated from those at lower estuary and at sea. The differences in environmental setting were thought as the significant contributor to the distribution of meiobenthos among the stations.
CONCENTRATION AND FLUX OF ATMOSPHERIC SURFACTANTS FROM COASTAL WATERS Latif, Mohd Talib; Mohamad, Che Abdul Rahim; Ali, Masni Mohd; Othman, Mohamed Rozali; Ramli, Nor Izanin; Hanif, Norfazrin Mohd
Marine Research in Indonesia Vol 33, No 1 (2008)
Publisher : Research Center for Oceanography - Indonesian Institute of Sciences (LIPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (5251.789 KB) | DOI: 10.14203/mri.v33i1.507

Abstract

This study tries to determine the concentration of sea surface microlayer from different coastal environments (Port Dickson, Negeri Sembilan and Perhentian Island, Terengganu). The concentration of surfactants in both sea surface microlayer and atmospheric aerosols were analysed by using colorimetric method as methylene blue active substances (MBAS) and diethyl violet active substances (DBAS). The results indicated that the concentration of surfactants as MBAS (0.421 +/- 0.040 imol l-1) and DBAS (0.294 +/- 0. 123 imol l-1) were still at the natural concentration level. The flux of surfactants from sea surface microlayer is expected around 2.3 Mmol yr-1 compared to the amount of 1300 Mmol yr-1 surfactants in atmospheric aerosols around marine ecosystem.
TIMING OF LARVAL RELEASE BY REEF CORAL Pocillopora damicornis AT PANJANG ISLAND, CENTRAL JAVA Munasik, -; Suharsono, -; Situmorang, J.; Kamiso, H. N.
Marine Research in Indonesia Vol 33, No 1 (2008)
Publisher : Research Center for Oceanography - Indonesian Institute of Sciences (LIPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (5394.911 KB) | DOI: 10.14203/mri.v33i1.458

Abstract

Monthly larval release by the coral Pocillopora damicornis at Panjang Island, Central Java was investigated. Corals were collected from windward and leeward and maintained in outdoor, flow-trough system to quantify nightly release of larvae. Larval release of the coral occurs every month throughout the year, and its planulation increased during dry monsoon. Monthly planulation occurs from new moon to full moon and possesses in different pattern between single and paired colonies. Planulation in paired colonies occurred in single peak and more synchronized in each colony however single colonies planulated in double peaks and less synchronized in each colony. This study confirmed that planulation period of P. damicornis at Panjang Island over a range of lunar phases with shorter periods of peak release which predominantly controlling by tidal range rather than lunar cycle.
CALANOID COPEPODS OF THE GENUS CENTROPAGES AND ITS SPECIES-GROUP FROM INDONESIAN WATERS Mulyadi, -
Marine Research in Indonesia Vol 33, No 1 (2008)
Publisher : Research Center for Oceanography - Indonesian Institute of Sciences (LIPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/mri.v33i1.503

Abstract

The marine copepods of the genus Centropages form a very important component of tropical marine ecosys-tem, but are poorly known. In a continuing study of the copepods of Indonesian coastal waters, eight species of Centropages were collected from 11 sites during 1996-2006. Four out of five previously known species i.e., C. calaninus (Dana, 1849); C. furcatus (Dana, 1849); C. gracilis (Dana, 1849); C. orsini Giesbrecht, 1896, except C. elongatus Giesbrecht, 1869 have been recorded. Four species i.e., C. brevifurcus Shen and Lee, 1963; C. dorsispinatus Thompson and Scott, 1903; C. sinensis Chen and Zhang, 1965; and C. tenuiremis Thompson and Scott, 1903, are new records for the area.

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