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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 6 Documents
 1 
Search results for , issue "Vol 37 No 2 (2012)" : 6 Documents clear
STATUS OF CORAL REEFS IN THE LEMBEH STRAITS AND ADJACENT WATER, NORTH SULAWESI Suharsono, -
Marine Research in Indonesia Vol 37 No 2 (2012)
Publisher : Research Center for Oceanography - Indonesian Institute of Sciences (LIPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1006.213 KB) | DOI: 10.14203/mri.v37i2.19

Abstract

Lembeh reefs and its water surrounding are among the richest and most diverse in marine biota in Indonesia. The biota and reefs in this area have an important contribution to the provinceâ??s economy in the form of tourisms and fishery activities. An inventory using line intercept transect and free collection on the coral diversity has been conducted in four different locations showed that live coral cover ranging from 12.2â??60.7% while sand rubble ranged from 4.67 to 78.67%. Among the life form categories, sponge dominated other biota with 0.47â??21.97% coverage. Macro algae and turf algae cover were low at all sites, with average less than 2.07%. A total of 193 corals species belonging to 68 genera were recognized from this area. The differences among sites may be consequences of water quality, habitat variability and condition of the land base activities. Water turbidity in the coastal area of Kema was high due to the effects of water discharge from river mouth. Further, poor land management, development of port and human settlement leading to sedimentation, water pollution and poor water quality, remain the primary causes of reefs declines. Busy harbor and local sea transportation will be the major cause of coral reef degradation in the near future. There is a need to increase awareness of local people about the important of coral reefs and to develop management and conservation efforts involving scientists, academe and tourist operators. In addition, it is a need to strengthen the capabilities and capacities of institutions that concern reef management and enforce legislation. 
THE ELASMOBRANCH NURSERY AREA OF JAKARTA BAY Fahmi, -
Marine Research in Indonesia Vol 37 No 2 (2012)
Publisher : Research Center for Oceanography - Indonesian Institute of Sciences (LIPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1240.091 KB) | DOI: 10.14203/mri.v37i2.20

Abstract

A study on the correlation between water, sediment qualities and the diversity of elasmobranchs in Jakarta Bayhas been conducted by the Research Center for Oceanography from the beginning of 2012. This paper presents apart of the study focusing on elasmobranch diversity and its size composition. Elasmobranchs in the coastal area ofJakarta Bay were collected using bottom gillnet every month to find out the species diversity and its size composition.The 162 collected individuals from Jakarta Bay were classified into eight species of rays and one whaler shark.Himantura gerrardi, H. uarnacoides, H. walga and Neotrygon kuhlii were the most common species found in thisarea. Interestingly, most specimens found in the area were immature and new born animals. This finding indicatesthat the coastal area of Jakarta Bay is one of nursery areas of most elasmobranchs living in adjacent waters althoughthe bay has been heavily polluted.
VARIABILITY OF SEA SURFACE CHLOROPHYLL-A, TEMPERATURE AND FISH CATCH WITHIN INDONESIAN REGION REVEALED BY SATELLITE DATA Sachoemar, Suhendar
Marine Research in Indonesia Vol 37 No 2 (2012)
Publisher : Research Center for Oceanography - Indonesian Institute of Sciences (LIPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (4526.321 KB) | DOI: 10.14203/mri.v37i2.25

Abstract

The investigation of sea surface chlorophyll-a (SSC) and sea surface temperature (SST) in relation to fish catch variability within the Indonesian region were conducted by using satellite data of NOAA-AVHRR, SeaWiFs and Aqua MODIS. The investigation focused in the region of the coastal area of Java, Lampung Bay and South Kalimantan as representation of the environment diversities of the Indonesian seas.  The result shows that seasonal variation in fish productivity has a strong correlation with SSC variability. High fish productivity corresponded well with high concentration of SSC, and the productivity tended to decrease when the SSC concentration was declined. High SSC variability in the coastal area of Java and Lampung Bay was governed by the upwelling  that induced high nutrient load into the sea surface during the southeast monsoon, while  in the northern coastal area of Java and South Kalimantan, it was governed by high precipitation ocurring during the northwest monsoon that enhanced the nutrient load through the rivers and coastal discharge.
OCCURRENCE OF PSEUDO-NITZSCHIA SPECIES (BACILLARIOPHYCEAE) AT KUCHING ESTUARIES FROM YEAR 2007 TO 2010 Lim, Po-Teen
Marine Research in Indonesia Vol 37 No 2 (2012)
Publisher : Research Center for Oceanography - Indonesian Institute of Sciences (LIPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1408.734 KB) | DOI: 10.14203/mri.v37i2.27

Abstract

Amnesic shellfish poisoning (ASP) is a type of seafood poisoning due to human consumption on shellfish mollusks contaminated with algal toxin, domoic acid (DA) derived from the diatom Pseudo-nitzschia. Bloom dynamics of this diatom in tropical waters were poorly understood due to lack of long term study on the organism. Occurrence of Pseudo-nitzschia species was investigated at Santubong and Samariang estuarine waters, Kuching, Sarawak from 2007 to 2010. The estuaries were characterized by shallow water with semi-diurnal tidal cycle. Cell abundance was determined by microscopic enumeration. Temperature, pH, salinity and macronutrients at the sampling sites were determined at each sampling occasions. Highest cell density of Pseudo-nitzschia spp. was recorded 8.0 Ã? 103 cells L in Santubong in April 2009 and P. brasiliana cells were found highest in October 2007 (2 Ã? 104 cells L-1). Increase in cell abundance was coincided with high salinity and low precipitation rate. Water temperature and pH showed insignificant influence on the abundance of Pseudo-nitzschia spp. The result obtained in this study provided fundamental understanding on bloom dynamic of potential harmful Pseudo-nitzschia species in the tropical estuarine waters.
PRELIMINARY STUDY OF SPECIES COMPOSITION AND DISTRIBUTION OF ECONOMICALLY VALUABLE PRAWNS IN THE NORTHEASTERN COASTAL WATERS OF VIETNAM Thinh, Do Dinh
Marine Research in Indonesia Vol 37 No 2 (2012)
Publisher : Research Center for Oceanography - Indonesian Institute of Sciences (LIPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2610.048 KB) | DOI: 10.14203/mri.v37i2.28

Abstract

The northeastern coastal waters of Vietnam contains diverse and abundant prawns with economic importance. In recent years, overexploitation and marine environmental pollution have led to the decrease of prawns. The purpose of this study is to identify the current diversity and distribution of prawns in this region. Prawns were sampled by a trawl net at four sites in 2011. A total of 21 species of three families of the superfamily Penaeoidea was distributed in this area. The family Penaeidae is the most diverse with 19 species, while each of family Sicyoniidae and Solenoceridae has only one species.
BEHAVIOR OF ANOXIC WATER IN THE BANGPAKONG ESTUARY Morimoto, Akihiko
Marine Research in Indonesia Vol 37 No 2 (2012)
Publisher : Research Center for Oceanography - Indonesian Institute of Sciences (LIPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2360.194 KB) | DOI: 10.14203/mri.v37i2.29

Abstract

We carried out hydrographic observations in the Bangpakong estuary during transient period from rainy season to dry season in 2011 and 2012. The main objective of the hydrographic observations was to elucidate the behavior of anoxic water mass in the Bangpakong estuary, which was the possible cause of mass mortality of cultured shellfishes in the study area. We had succeeded the CTD and mooring observations in both years, and we had obtained timeâ??series data of DO, salinity, and current velocity for approximately 2 months, which were the first long-term continuous records in terms of water quality in the Bangpakong estuary. From mooring data, it was revealed that DO and salinity at the bottom layer in aquaculture area oscillated with large amplitude, and the period of the oscillation corresponded to tidal variation. Amplitude of the oscillation was large in September and became small in October, and anoxic condition lasted for several days in October in 2011 and 2012. Current direction at station M1 in 2011 was opposite to that of in 2012 throughout the mooring period southward in 2011 and northward in 2012. Wind conditions in Chonburi in both years were almost the same, but river discharge in 2011 was much higer than that of in 2012. Therefore, it was possible that the difference of current direction at station M1 occurred due to change of buoyancy flux, and persistent period of anoxic condition was different between 2 observed years associated with circulation change. It was suggested that mass mortality of cultured shellfishes in Bangpakong estuary was caused by anoxic water because timing of mass mortality corresponded to that of anoxic water appearance qualitatively. It was also suggested that the anoxic water mass in aquaculture area was transported from off shore area by residual currents.

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