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Marine Research in Indonesia

MRI
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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.

Arjuna Subject : -

Articles 567 Documents

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EFFECT OF SALINITY AND GROWTH MEDIUM ON Symbiodinium sp. ISOLATED FROM GIANT CLAM Panggabean, Maria Goretti Lily; Hutagalung, Rory A.; Ayu, Eveline
Marine Research in Indonesia Vol 34 No 2 (2009)
Publisher : Research Center for Oceanography - Indonesian Institute of Sciences (LIPI)

An experiment on isolate Symbiodinium sp. from Hippopus hippopus was carried out to determine growth medium and optimum salinity for in vitro culture of the symbiont. The split-plot factorial design with two factors was applied with 3 replications. The first factor was medium with 2 levels, namely f/2 and modified GPM. The second factor was salinity with five levels i.e. 20, 25, 30, 35 and 40 PSU. All treatments were incubated under continuous light (2600 lux) and 25°C. The maximum growth was reached at day 16 and there was significant interaction (p<0.05) between medium and salinity. The maximum density (64.8 x 104cell/ml) was found in media f/2 and salinity 35 PSU.

GROWTH OF MANGROVE COCKLE (Anandara antiquata) CULTURED IN CAGES Pattikawa, Jesaja A.; Ferdinandus, Elizabeth
Marine Research in Indonesia Vol 34 No 2 (2009)
Publisher : Research Center for Oceanography - Indonesian Institute of Sciences (LIPI)

Study on growth of mangrove cockle (Anadara antiquata) was conducted in the intertidal area of Passo, Inner Ambon Bay. Three size-classes of 25 individual cockles were cultured in 1 m3 cage. Length increment data was collected every two weeks for seven periods of observation. Relative growth rate, length-weight relationship and condition factor were estimated using formula proposed by Effendie, Pauly and King, respectively. The results showed that the small size had the highest length increment and relative growth rates while the large size had the best condition factor. Length-weight relationship showed isometric growth for all categories.

CRYPTIC MARINE BIODIVERSITY OF RAJA AMPAT ISLANDS Hoeksema, Bert W.; Tuti, Yosephine; Suharsono, -
Marine Research in Indonesia Vol 34 No 2 (2009)
Publisher : Research Center for Oceanography - Indonesian Institute of Sciences (LIPI)

During a marine field survey in Raja Ampat as part of Ekspedisi Widya Nusantara (E-win), 21 scientists, studied the area's cryptic biota on coral reefs and in marine lakes. Cryptic species lead hidden lives due to their small size, successful camouflage or mimicry, or because they live in habitats that are easily overlooked or hard to access. Hundreds of species were sampled, many of which still have to be identified. The species richness of Raja Ampat appears to be very high, even among other areas within the centre of maximum marine biodiversity, the so-called Coral Triangle.

PREDICTION OF SOUTHERN OSCILLATION USING THE INDONESIAN THROUGHFLOW VARIABILITY Aldrian, Edvin; Arifian, Jon
Marine Research in Indonesia Vol 34 No 1 (2009)
Publisher : Research Center for Oceanography - Indonesian Institute of Sciences (LIPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/mri.v34i1.516

Atmospheric boundary layer derived from NCEP/NCAR reanalyses for the period of 1974 to 2002 has been used as boundary forcings for the global ocean model Max Planck Institute Ocean Model (MPIOM). The ocean model is a curvilinear grid model, whose poles are located over mainland China and over the Australian continent, thus focusing on the maritime continent. The model simulates major Indonesian throughflow passages that focus on six cannels representing three inlets and three outlets (the Makassar, Lifamatola, Halmahera, Lombok, Ombai and Timor Straits). The model results have been validated using the Arlindo observation Project over the Makassar Strait in the period of January 1997 to February 1998, which fortunately was during a strong El Niño episode. The model simulation results were then investigated for their prediction capabilities of any of those channels in foreseeing the incoming southern oscillation events. Temporal correlation analysis with lag and advance time correlation methods were performed against simulated data at all levels on those channels. Variabilities in depth of 74 to 200m (thermocline depth) show the strongest correlation with SOI index (Darwin minus Tahiti mean sea level pressure). The temperature and salinity correlations with SOI are the highest with one-month in advance over Lifamatola Strait (0.77) and two-month in advance over the Makassar Straits (0.74). These significant correlations highlight the important of those two straits in prediction of incoming southern oscillation that usually leads to ENSO episode which brings most of the time devastating impact to economy, agriculture and ecosystem.

DISSOLVED AND PARTICULATE CARBON IN JAKARTA BAY, INDONESIA Nugrahadi, Mochamad Saleh; Yanagi, Tetsuo; Tejakusuma, I. G.; Adi, Seno; Darmawan, Rahmania A.
Marine Research in Indonesia Vol 34 No 1 (2009)
Publisher : Research Center for Oceanography - Indonesian Institute of Sciences (LIPI)

In order to investigate spatial and temporal variability of dissolved organic carbon (DOC) and particulate organic carbon (POC), several samples were collected from five estuaries, inner part and outer part of Jakarta Bay. The samples were collected on 15 and 16 February 2007, a week after heavy flood in Jakarta Area, and on 16 May 2007. DOC concentration in February and May in Jakarta Bay ranged between 100-950 µg-C/l and between 0-850 µg-C/l respectively. POC concentrations ranged between 50-650 µg-C /l and 50-900 µg-C /1 in February and May 2007, respectively. Even though the concentrations between both periods were similar, the load of organic carbon from the land to Jakarta Bay showed a large contrast due to the different amount of freshwater input. The Total organic carbon fluxes from the rivers to the bay in February and May 2007 were 107.6 t d-' C-(ton per day Carbon) and 42.7 t d-1 C, respectively.

FIRST RECORD OF Thamnaconus modestoides (Barnard, 1927) (Tetraodontiformes: Monacanthidae) in Indonesia Peristiwady, T.
Marine Research in Indonesia Vol 34 No 1 (2009)
Publisher : Research Center for Oceanography - Indonesian Institute of Sciences (LIPI)

This paper gave evidence of the occurrence of Thamnaconus modestoides in Indonesian waters. A specimen (271.15 mm SL) was collected from the Winenet fish market at Bitung, North Sulawesi in March 2008. It was reported being caught in the depth of 20-30 m, in association with other coral-reef fishes, despite the fact that member of Thamnaconus has been known as deep water species. The morphological features of this new record species were discussed and illustrated.

OOCYTES OF HOLOTHURIA LEUCOSPILOTA (ECHINODERMATA: HOLOTHUROIDEA): AN ULTRA STRUCTURAL STUDY Purwati, Pradina
Marine Research in Indonesia Vol 34 No 1 (2009)
Publisher : Research Center for Oceanography - Indonesian Institute of Sciences (LIPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/mri.v34i1.519

Ovaries of Holothuria leucospilota consist of simple tubules, within which oocytes grew and reached maturity. The oocytes development started at the tubule lining and as the development proceeded, the oocytes increased in size and moved to the tubule lumen. An ultra-section-method was applied to describe ultrastructural changes in the oocytes during their development, leading to the knowledge on gametogenesis of sea encumber H.leucospiota. Primary previtellogenic oocytes embedded in tubule lining was the earliest stage, which were characterized by the presence of nuage. Prior to yolk formation, clusters of mitochondria appeared in the ooplasm. This may indicate the need for energy to produce yolk substance. When yolk bodies were common in vitellogenic oocytes, nuage became invisible and mitochondria were no longer in groups. As development progressed, abundant microvilli appeared on the surface of vitellogenic oocytes, but less common on postvitellogenic oocytes when maximum growth had been attained. This structure was suggested to facilitate size increase and functional efficiency of oocyte surface.

SEDIMENT DEPOSITION IN A SOUTH SULAWESI SEAGRASS BED Lanuru, Mahatma; Fitri, Ramdina
Marine Research in Indonesia Vol 33 No 2 (2008)
Publisher : Research Center for Oceanography - Indonesian Institute of Sciences (LIPI)

Deposition of suspended sediment was measured with sediment traps in shallow coastal waters colonized by Thallasia dominated seagrass in Pannikiang Island, South Sulawesi (Indonesia). The primary objective of this study was to compare the amounts of sediment deposition inside seagrass beds and in adjacent unvegetated area. The traps were placed in a seagrass bed (Station I, II, and III) and in an adjacent unvegetated area (Station IV) measuring the sediment flux on the seabed. The sediment fluxes due to deposition were significantly higher at stations I and II (P < 0.05) and station III (P < 0.01) than at station IV (unvegetated area). Results of this study suggest that sediment deposition was promoted by dense shoots of seagrass. The study provides quantitative evidence for the importance of seagrass bed as sites of sedimentation of fine particles.

OCCURRENCE AND DISTRIBUTION OF MOLLUSCA FAMILY TROCHIDAE AT BADI ISLAND SW-SULAWESI INDONESIA Litaay, M.
Marine Research in Indonesia Vol 31 (2006)
Publisher : Research Center for Oceanography - Indonesian Institute of Sciences (LIPI)

The occurrence and distribution of family trochidae at Badi Island, Spermonde Archipelago off SW-Sulawesi has been studied. The line transect with combination of quadrant method was used during sampling. A transect covering 400 m' of sampling area was applied at 1, 3,5, and 7 m depth, respectively. Parameters such as shell length and size-class distribution were observed. Ecological parameters were also recorded during investigation. We found the presence of 11 species of trochidae at the study area. It was evident that some trochidae were common and while top shell Trochus niloticus seems to be rare. Vertical distribution among this group was uneven. The number of species decreases with increasing depth. Furthermore, high density of smaller trocha occurred at shallow water followed by a decline with changes in depth.

DEMERSAL FISHING ANALYSIS OF KUPANG BAY Mosse, J. W.; Hutubessy, B. G.
Marine Research in Indonesia Vol 31 (2006)
Publisher : Research Center for Oceanography - Indonesian Institute of Sciences (LIPI)

Study on demersal fish in Kupang bay was carried for 6 months, from July 2002 to December 2002. Sampling was conducted twice a month at the ten-selected locations within the bay using different fishing gears such as gill net, bottom logline, hand line and traps. Fishes caught were stored in a icebox and transferred to the laboratory of the Fisheries Faculty of Artha Wacana Christian University, Kupang for further identification. Similarity index of fish species of the study sites was analyzed using non-metric multidimensional scaling (nMDS) of the matrix Bray Curtis similarity. A computer program PRIMER was used to perform the analysis. The result shows that there are 56 species (total catch 890 fishes) found during this study and their similarity index revealed three groups of study sites. Interestingly, it seems that these species remained to have some strong association with the existing ecosystem.

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Contact Name
Aan J. Wahyudi

Contact Email
aanj001@lipi.go.id

Phone
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Journal Mail Official
mri@mail.lipi.go.id

Editorial Address
-

Location
Kota adm. jakarta selatan,

Dki jakarta

INDONESIA