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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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TEMPERATURE OBSERVATIONS IN THE WATER-OFF MUARA KARANG Kastoro, -; Birowo, Soejatno
Marine Research in Indonesia Vol 20 (1977)
Publisher : Research Center for Oceanography - Indonesian Institute of Sciences (LIPI)

During the period of March 1975 to February 1976 a survey was carried out in the water off Muara Karang, Jakarta Bay. Water temperature were slightly higher than those in the open sea, and showed a seasonal variation. The seasonal variation axe affected by meteorological conditions, incoming water from neighbouring seas, and by the land mass.

FATE OF SEAGRASS PRODUCTION AS ASSESSED BY CAGE EXPERIMENTS IN Enhalus Acoroides BED IN GILIMANUK BAY, BALI, INDONESIA Azkab, M. Husni
Marine Research in Indonesia Vol 33, No 2 (2008)
Publisher : Research Center for Oceanography - Indonesian Institute of Sciences (LIPI)

In 2006, the amounts of seagrass products floating away and depositing were measured by in situ cage experiments in a monospecific seagrass meadow of Enhalus acoroides in Gilimanuk Bay, Bali Island. Results showed that the average rates of the floating and depositing leaves were 4.03 + 0.28 and 7.95 + 0.31 gram dry weight shoot-1 day-1 respectively. To express it in another way, about 66.4 % of seagrass production was deposited on the seagrass bed and 33.6 % floated away from the seagrass bed.

SUITABILITY ANALYSIS OF MULTISPECTRAL SATELLITE SENSORS FOR MAPPING CORAL REEFS IN INDONESIA CASE STUDY: WAKATOBI MARINE NATIONAL PARK Adji, Arif Seno
Marine Research in Indonesia Vol 39, No 2 (2014)
Publisher : Research Center for Oceanography - Indonesian Institute of Sciences (LIPI)

Providing accurate information on suitable multispectral satellite sensors for mapping coral reefs in Indonesia is a challenge for coastal remote-sensing experts. As coral reefs vary in spatial extent, shape, length, perimeter and/or distance to shore, the mapping of coral reefs will need different satellite sensors depending on the objectivesÃÂ and the kind of information required. This work compares the suitability of two kinds of multispectral satelliteÃÂ sensors for mapping coral reefs in Indonesia, high and moderate spatial resolution. This was done through a caseÃÂ study of Wakatobi Marine National Park since that represents many types of coral reef in Indonesia (fringing,ÃÂ barrier, atoll, and patch). Indonesian coral reef shapefile data 2010 was downloaded from UNEP (United NationsÃÂ Environment Programme) website, and Landsat 7 ETM + images, path/row 112/064 was used to determine theÃÂ terrestrial area of Wakatobi Islands. Both high and moderate spatial resolution sensors are suitable for mapping theÃÂ benthic communities and geomorphic zones on coral reefs. The former are more accurate but they are also muchÃÂ less cost-effective, especially over large areas.

STUDIES ON PLANKTON, PRIMARY PRODUCTION AND FISH IN THE INNER BRUNEI BAY Linden, Olof; Ganning, Bjorn; Lindestrom, Lennart
Marine Research in Indonesia Vol 28 (1992)
Publisher : Research Center for Oceanography - Indonesian Institute of Sciences (LIPI)

No abstract provided

HORIZONTAL DISTRIBUTION OF DINOFLAGELLATE CYSTS IN SURFACE SEDIMENTS OF JAKARTA BAY: SOME PRELIMINARY RESULTS Sidharta, Boy Rahardjo; Panggabean, M. G. Lily; Mizushima, Koichiro
Marine Research in Indonesia Vol 33, No 1 (2008)
Publisher : Research Center for Oceanography - Indonesian Institute of Sciences (LIPI)

Ten surface sediment samples were collected from Jakarta Bay to study the horizontal distribution of dinoflagellate resting cysts in this area. Overall results had shown unique species composition and diversity of dinoflagellate cyst assemblages. However, dinoflagellate cysts found in this preliminary research were sparse and relatively low in term of species number and concentrations. Twenty cyst morphophites were identified in this research, within which ten cysts belong to autotrophic and another ten belong to heterotrophic species. Protoperidinium cysts were the most diversified group, predominating in almost the sampling locations. The cysts identified were generally characterized by species belonged to three orders namely Gonyaulacales, Gymnodiniales, and Peridiniales. Only one dinoflagellate cyst found that was belonged to the toxic and harmful algal bloom (HAB) member species, i.e. Gymnodinium catenatum.

SURVIVAL RATE AND GROWTH OF JUVENILE SANDFISH (Holothuria scabra) IN VARIOUS REARING CONDITIONS Indriana, Lisa Fajar; Firdaus, Muhammad; Supono, .; Munandar, Hendra
Marine Research in Indonesia Vol 42, No 1 (2017)
Publisher : Research Center for Oceanography - Indonesian Institute of Sciences (LIPI)

Techniques for producing Holothuria scabra or sandfish sea cucumbers from aquaculture have been developed rapidly in the recent years to address the issues of decreasing sandfish population and increasing market demand. During the process of culturing H. scabra, the early stages of sandfish (i.e. larvae and juveniles) are the most critical of the development. Therefore, the Research and Development Division of the Marine Bio Industry â LIPI conducted a study to assess the growth performance of juvenile H. scabraÂ ultured in four different rearing conditions: (i) indoor concrete tank, (ii) indoor fiberglass tank, (iii) outdoor concrete tank with 1 mm hapa mesh, and (iv) outdoor concrete tank with 3 mm hapa mesh. Each of the rearing condition was set with an initial juvenile density of 15 juveniles per tank with a mean initial weight of 14 g, and fed ad libitum with a mixed feed consisting of Enhalus acoroides sea grass, Pennisetum purpureum napier and cow manure. The experiments were conducted for 20 weeks between April 26 - September 23, 2013. After the experimental period, juveniles reared in the outdoor concrete tank with 1 mm mesh show the best performance with respect to their survival rate (48.89 Â± 3.85 %),mean final weight (22.07 Â± 1.01 g), final biomass (162.05 Â± 18.17 g) and specific growth rate (0.15 Â± 0.03% per day). Further studies that combine rearing conditions with different bottom substrates as well as investigating the effect of light are needed to optimize the production of H. scabra from aquaculture.

OCEANOGRAPHIC CHARACTERISTICS OF KLABAT BAY, BANGKA ISLAND, INDONESIA Sachoemar, Suhendar I.; Kristijono, Agus; Yanagi, Tetsuo
Marine Research in Indonesia Vol 32, No 2 (2007)
Publisher : Research Center for Oceanography - Indonesian Institute of Sciences (LIPI)

The oceanographic characteristics of Klabat Bay in Bangka Island of Indonesia were investigated by using a series of temperature, salinity, turbidity, TSS (total suspended solid), transparency, DIN (Dissolved Inorganic Nitrogen), DIP (Dissolved Inorganic Phosphorus), DO (Dissolved Oxygen) and chlorophyll-a data in the wet season (Northwest Monsoon) and dry season (Southeast Monsoon) of 2003, respectively. The observation results show that the hydro-oceanographic characteristics of Klabat Bay in the inner part and the outer part of the bay were dominantly influenced by the terrestrial and oceanic environment, respectively. High precipitation during the wet season decreased salinity, DO and transparency and increased total suspended solid (TSS), turbidity, DIN and chlorophyll-a within the bay. The reverse occurred during the dry season, except DIP.

A NUMERICAL SIMULATION OF THE WIND-DRIVEN WATER CIRCULATION ON THE SUNDA SHELF Groves, Gordon W.; Niemeyer, Gary
Marine Research in Indonesia Vol 14 (1975)
Publisher : Research Center for Oceanography - Indonesian Institute of Sciences (LIPI)

A numerical simulation of the barotropic circulation over the Sunda Shelt was carried out for a time-invariant wind field corresponding to (a) the Northwest Monsoon and (b) the Southeast Monsoon seasons. Starting from a state of rest, the current and surface configurations were timestepped until an apparent state of equilibrium was reached. The resulting current pattern and sea-surface topography are in good agreement with observations during those two seasons.

SOME ASPECTS OF THE CULTURE OF EUCHEMA Horstman, U.; Colina, A.; Schramm, W.
Marine Research in Indonesia Vol 17 (1977)
Publisher : Research Center for Oceanography - Indonesian Institute of Sciences (LIPI)

Eucheuma striatum and Eucheuma spinosum, are red algae of commercial value because of their carrageenin content, to an increasing extent are cultivated in the Philippines. The influence of environmental factors on growth rate and photosynthesis of these seaweeds were studied through observations in their natural biotope in seaweed farms, from in-situ experiments, and photosynthesis experiments in an incubator. While difference in light intensity and temperature play only a minor role, the algae were found out to be sensitive to low salinity and to the amount of dissolved gases and nutrients in the surrounding seawater. The algae can only be cultured in areas where there is sufficient current but to a cer-tain extent lack of current can be compensated by exposing the plants to wave action. This leads to certain conclusions regarding the most suitable method of commercial Eucheuma culture. Eucheuma can be successfully cultured in small rafts or in floating baskets in areas where there is insufficient current for the use of fixed nets or strings. There is evidence that-the CO2 -02 metabolism in the surrounding water plays an important role in Eucheuma growth. Eucheuma harvest can be further increased by introducing more nutrients. Fertilizing with phosphate caused a bigger increase in growth rate than with nitrogen. The method of spraying plants after temporarily removing them from the water, found to be more effective than fertilizing solutions by the use of clay pots. The presence of a bacterial disease, locally referred to as "ice-ice", was recognized as a clear indication that certain environment conditions were unfavourable for Eucheuma culture. Low salinity, in the first place, but also lack of current favors the attack of "ice-ice". Finally, it was found that Eucheuma adapts itself to its culture site in such a way that after maintaining seedlings in an area for a sufficient length of time, the cultured plants showed better growth rates and were resistent to unfavorable conditions than plants recently transferred to the area.

THE LEIOGNATHUS (TELEOSTEI): THEIR SPECIES, STOCKS, AND FISHERIES IN INDONESIA, WITH NOTES OF THE BIOLOGY OF LEIOGNATHUS SPLENDENS (CUVIER) Pauly, Daniel
Marine Research in Indonesia Vol 19 (1977)
Publisher : Research Center for Oceanography - Indonesian Institute of Sciences (LIPI)

Species of the family Leiognathidac in the Indo-Pacific area are often considered trash fish but are readily accepted in Indonesia, where about 50,000 tons were landed in 1975, 14,000 tons of which originated from the Malacca Strait area. The Western Jawa Sea, Karimata Strait and Indonesias South China Sea stocks are underfished or, partially, even virgin and production from these stocks might be more than 100,000 tons a year. The leiognathid stocks, having their highest stock densities in very shallow waters (peak at 25 m depth) are easily overfished by trawling, while the bagan (lift-nets) tend to underfish them. In East Jawa, there is an annual periodicity in the fishery which is correlated with the rainfall, the peak landings being from December through March, while landings are lowest from July to September. Leiognathus splendens (CUVIER) makes up most of the leiognathid stock (90% and more). The main feature of the biology of this species â growth, reproduction and food are briefly discussed. A short selected bibliography of the Leiognathidae is given.

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Contact Name
Aan J. Wahyudi

Contact Email
aanj001@lipi.go.id

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

Editorial Address
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Location
Kota adm. jakarta selatan,

Dki jakarta

INDONESIA