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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.
Arjuna Subject : -
Articles 6 Documents
 1 
Search results for , issue " Vol 31 (2006)" : 6 Documents clear
GROWTH OF JUVENILE HORSES HOOF CLAMS (Hippopus hippopus) REARED IN COASTAL WATERS, PARI ISLAND, KEPULAUAN SERIBU Pangabean, L. M.G.L.; Dwiono, S. A.P.; Setyono, D. E. Djoko
Marine Research in Indonesia Vol 31 (2006)
Publisher : Research Center for Oceanography - Indonesian Institute of Sciences (LIPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1668.321 KB) | DOI: 10.14203/mri.v31i0.425

Abstract

The main purpose of this present study is to determine the growth and survival rate of juvenile horses hoof clams {Hippopus hippopus) and to find out a suitable site for their rearing in nature. Juveniles used in this study were about 3 years old, produced in the hatchery of CV Dinar, Bali. They were reared in the cages, placed on the sea bed at several sites, namely: (1) on the reef flat, (2) on the bed of a lagoon, and (3) on the sea channel. After 360days of rearing, the highest daily growth was found for juveniles reared in site-2, i.e. 0.110 mm in length, 0.080 mm in width and 0.091 mm in height. These values were significantly different from other two sites. The survival rate after 360 days of rearing was 85.5% in site-1, 99.4% in site-2 and 96.8% in site-3. Based on these results the bed of a lagoon is the best and suitable site to grow horses hoof clam juveniles in nature. Water condition at this site is relatively calm with sandy-muddy substrates and relatively dense seagrasses, mainly Thallasia spp.
A FORMULATION APPROACH TO QUANTIFY THE ABUNDANCE OF CORAL GENERA Suharsono, -; Giyanto, -
Marine Research in Indonesia Vol 31 (2006)
Publisher : Research Center for Oceanography - Indonesian Institute of Sciences (LIPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2494.558 KB) | DOI: 10.14203/mri.v31i0.424

Abstract

A formulation approach to quantify the abundance of coral genera is considered important to obtain basic information necessary in determining the potency and condition of coral, and one application can also be used to set quota for coral trade. The line intercept method has been used in five different area throughout Indonesian archipelago representing prestine area to heavy disturbances. Based on the number of occurrence, the genera dominance, the size of colony and the coral coverage in each study area was assigned scale, weight and value. The calculation gave the range of Total Value (TV) from 5 -20 and the assignment abundance category of coral genera is 17-20 very common, 14-16 common, 11-13 uncommon, 8 -10 rare, and 5-7 very rare. The categorization of each coral genus of certain area can be used to consider whether it can be harvested or not. Suggestion based on this study as follow: coral genera categorized as "very common" can be harvest, coral genera categorized as "common" can be harvest with caution, coral genera categorized as "uncommon", harvest are limited, coral genera as "rare", harvest are strictly limited and coral genera as "very rare" are prohibited to harvest.
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)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (6957.34 KB) | DOI: 10.14203/mri.v31i0.534

Abstract

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)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (8592.092 KB) | DOI: 10.14203/mri.v31i0.535

Abstract

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.  
GROWTH OF JUVENILE GREEN SNAIL (Turbo marmoratus) CULTURED IN CAGES PLACED AT DIFFERENT DEPTHS Dwiono, S. A.P.; Setyono, D. E.D.
Marine Research in Indonesia Vol 31 (2006)
Publisher : Research Center for Oceanography - Indonesian Institute of Sciences (LIPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (6036.587 KB) | DOI: 10.14203/mri.v31i0.536

Abstract

This research was part of successive studies on culture techniques of juvenile green snail (Turbo marmoratus). This study was carried out for 14 weeks in coastal waters of Morella, Ambon Island. Three cages were placed at depths of 0 m, 4 m and 8 m below mean sea level. Each cage had a bottom area of 0.81 m2 and was stocked with 20 green snail juveniles of 40-50 mm shell diameter. During the first 4 weeks, juveniles reared at 0 m deep showed lowest instantaneous growth, while those reared at 8 m deep attained highest instantaneous growth. The instantaneous growth decreased significantly over 6 weeks for juveniles reared at 4 m and 8 m deeps. Over 14 weeks, juveniles reared at 8 m deep had higher daily growth than those at 0 m deep. It is recommended that to grow green snail juveniles at 8 m deep without any food complement, the substrates (coral nibbles) in the cages need to be renewed every 4 weeks with ones covered with microalgae.
MARINE BIODIVERSITY OF INDONESIA: LARVAL FISH PERSPECTIVE Syahailatua, A.
Marine Research in Indonesia Vol 31 (2006)
Publisher : Research Center for Oceanography - Indonesian Institute of Sciences (LIPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (7112.937 KB) | DOI: 10.14203/mri.v31i0.537

Abstract

Marine life of Indonesia is very well known as a high diversity according to Ekmans hyphothesis. However, from the larva fish perspectives, this hypothesis seems to be rejected according to the comparative results of larval fish studies during the Snellius Expedition (1984-1985) in Banda Sea and the larval fish observation related to the East Australian Current (1998-1999) off New South Wales coast in Australian waters. Larval fish diversity from some previous studies over the world is also included. Several suggestions are also recommended to enhance our knowledge in marine biodiversity including improvement in marine biodiversity observation such as, research programs, field and laboratory facilities and numbers of taxonomists, and also collaborative works among research institutes, universities, and non-governmental organizations.

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