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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.

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Articles 567 Documents

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POLICY MODELONMARINE TOURISM DEVELOPMENT IN WAKATOBI REGENCY (SE SULAWESI,INDONESIA) Yulius, -; Heriati, Aida; Salim, Hadiwiijaya Lesmana; Purbani, Dini; Ramdhan, Muhammad
Marine Research in Indonesia Vol 40 No 2 (2015)
Publisher : Research Center for Oceanography - Indonesian Institute of Sciences (LIPI)

Wakatobi Regency has a huge capacity in natural resources with it's beautiful and pristine coastal ecosystems that host 25 coral reefs species in diverse forms. The regency is considered as the world?s best biosphere and frequently visited by local and international tourists for diving/snorkeling. The objectives of this study are to determine the role of marine tourism in Wakatobi?seconomy and formulate an appropriate and strategic policy for its marine tourism development plan. Methods used in this research are theLocation Quotient (LQ) analysis to determine the relative ability of a sub-area to a wider area in the specific sector, and theProspective Participatory Analysis for preparing the marine tourism development plan. The LQ analysis for the marine tourism (trade, hotels, and restaurants) sector based on GDP data from 2004-2007 shows values ranging from 0.808-0.881, which indicate poor potential and low contribution of this sector toWakatobi?s economy. TheProspective Participatory Analysis involving 18 variables related to marine tourism development indicates that Wakatobi Regency has four key variables. These are:community behavior towards environmental protection, community character, human resources andmotivation. These variables would play an important role in preparing and implementing marine tourism development plan in Wakatobi Regency.

AMPHIPOD DISTRIBUTION IN THE SOFT-BOTTOM SUBTIDAL ZONES OF JAVA ISLAND IN RELATION TO SEDIMENT TYPES Arfianti, Tri; Sihaloho, Hendra F.; Purbonegoro, Triyoni; Suratno, -; Arifin, Zainal
Marine Research in Indonesia Vol 40 No 1 (2015)
Publisher : Research Center for Oceanography - Indonesian Institute of Sciences (LIPI)

Amphipods inhabit many marine benthic habitats and have an important ecological role. However, there is a lack of information about Indonesian amphipod diversity and distribution, especially in the shallow subtidal sediments of Probolinggo and Tangerang. During the transition to the monsoon season in September 2014, eight subtidal stations were sampled in Bayeman (Probolinggo) on East Java and seven subtidal stations were sampled in Kramat Kebo (Tangerang) in West Java. A total of 7346 amphipods individuals were collected, comprising five genera. Genus Photis was the most abundant group, followed by Grandidierella and Synchelidium. Multivariate analyses of these data indicated that sampling location and sediment granulometry were major determinants of distribution and composition of amphipods in Probolinggo and Tangerang.

REARING OF JUVENILE DONKEY-EAR ABALONE (Haliotis asinina) IN FLOW-THROUGH TANKS WITH THE ADDITION OF DIFFERENT SUBSTRATES Setyono, Dwi Eny Djoko
Marine Research in Indonesia Vol 40 No 1 (2015)
Publisher : Research Center for Oceanography - Indonesian Institute of Sciences (LIPI)

This study investigated the effects of the addition of coral rubble and polyvinylchloride (PVC) guttering as substrates on the growth of donkey-ear abalone (Haliotis asinina) reared in a flow-through water system. The tanks were100 cm long x 50 cm wide x 40 cm deep, filled with sea water up to 30 cm high. Hatchery-produced abalone with a mean initial shell length of 30.9 ± 0.1 mm and wet weight of 5.5 ± 0.1 g were stocked at 25 individuals/tankthat corresponded to stocking densities of ca. 50 abalone/m2 of the bottom area of the tank. Juvenile abalonewere provided with an excess red seaweed Gracilaria spp daily over 175 days. The results show that growth and growth rates in shell length and wet body weight were not significantly different between treatments (P>0.05). Survival rates of juveniles reared in the tank with the addition of coral rubble and/or PVC guttering were 100%, but 98% for juveniles in the tank without the addition of substrate. The average daily growth rates of shell length and wet body weight were 0.087+0.037 mm and 0.088+0.044 g for juveniles reared in the tank with the addition of coral rubble; 0.081+0.030 mm and 0.077+0.032 g for juveniles reared in the tank with the addition of PVC guttering; and 0.082+0.032 mm and 0.078+0.039 g for juveniles reared in tank without addition of substrates.

MEGANTHIAS KINGYO (KON, YOSHINO AND SAKURAI, 2000) (PERCIFORMES: SERRANIDAE) FROM BITUNG, NORTH SULAWESI, INDONESIA: FIRST RECORD FROM THE SOUTHWESTERN PACIFIC OCEAN Peristiwady, Teguh; Koagouw, Wulan; Du, Jianguo; Makatipu, Petrus Christianus
Marine Research in Indonesia Vol 40 No 2 (2015)
Publisher : Research Center for Oceanography - Indonesian Institute of Sciences (LIPI)

Eight specimens of Meganthias kingyo were collected from Bitung, North Sulawesi, Indonesia between 2008 - 2010. The specimens were caught from about 70-150 m off Lembeh Island. M. kingyo differs from M. natalensis by having the following characteristics: pores lateral line scales (43 vs. 49); pectoral rays (16 vs. ii.14); body depth (47.1 vs. 51.9); head length (31.0 vs. 38.2), body depth (47.1 vs. 52.9), caudal peduncle depth (12.1 vs. 14.2), pectoral fin length (28.0 vs. 34.3), pelvic fin length (33.6 vs. 31.1), anal fin base length (19.4 vs. 22.2), caudal fin length (66.9 vs. 35.3) and longest dorsal fin ray (48.5 vs. 27.4). Previously, this species has been reported from Houzan-sone, off Miyako and Yaeyama Islands in Okinawa, Japan; and herein is recorded from off Lembeh Island, North Sulawesi, Indonesia.

R and Its Applications on the Ecological Research Sihaloho, Hendra Freddy
Marine Research in Indonesia Vol 40 No 1 (2015)
Publisher : Research Center for Oceanography - Indonesian Institute of Sciences (LIPI)

The increase of research activities in recent years has generated a lot of data to be analysed. Research-related communities need a powerful software to perform their analyses. And, it can be a problem, particularly for those who live in developing countries, where their financial capability is low to buy the proprietary programs. R may provide the solution to this obstacle. Since it is an open source software, which can be installed on major operating systems. In addition, it is highly maintained by R Core Team, which ensures that the program and its packages work well on across platforms. The increase usage of R, especially in universities is not only a proof that the program can be relied on, but it is also a guarantee that the software will continue developing. R and its capability for ecological research activities particularly will be described on this short note

MERCURY AND ARSENIC CONTENT IN SEAFOOD SAMPLES FROM THE JAKARTA FISHING PORT, INDONESIA Koesmawati, Tiny Agustini; Arifin, Zainal
Marine Research in Indonesia Vol 40 No 1 (2015)
Publisher : Research Center for Oceanography - Indonesian Institute of Sciences (LIPI)

Mercury and arsenic are considered to be among the most toxic metals and have been associated with serious adverse health effects. These two trace metals and other contaminants that are found in fish products are therefore of public concern for food-safety reason. Hence, we selected three marine species to study i.e., yellow fin tuna, marlin and green mussels because of their economic values in the international and local markets. The objective of our study was to determine the arsenic and mercury content in these three marine species as a first step in monitoring metal content in seafood products. The tissue samples of tuna and marlin were collected from the Jakarta fishing port, while the green mussels was collected from aqua-culture sites in Jakarta Bay. The metal content was determined by ICP-MS and validated using CRM DORM-2 and DORM-3. The speciation of arsenic (organic and inorganic forms) was determined using HPLC-ICPMS.All measurements were based on dry weight samples. The result showed that the mercury concentration in yellow-fin tuna, marlin and green mussel samples was 0.68 ± 0.08 mg kg-1, 0.56 ± 0.06 mg kg-1 and 1.51 ± 0.10 mg kg-1, respectively. The total arsenic concentration in yellow-fin tuna, marlin and green mussel samples was 3.47 ± 0.21 mg kg-1, 2.71 ± 0.18 mg kg-1, and 6.77 ± 0.32 mg kg-1, respectively. The mercury content in the fish tissue was below the maximum allowable concentration (National Standard of Indonesia 1.0 mg kg-1), except for the green mussels. For total arsenic concentration, all the samples were above the national standard concentration (1.0 mg kg-1). The organic arsenic species arsenobetain (AB) found in tuna and marlin fish samples was not toxic. Inorganic and organic arsenic was found in the green mussel samples. Our results suggest that there is a need to establish a national program to regularly monitor the content of selected trace metals in fishery products.

CURRENT STATUS OF MYSID TAXONOMYIN SOUTHEAST ASIA Sawamoto, Shozo
Marine Research in Indonesia Vol 39 No 1 (2014)
Publisher : Research Center for Oceanography - Indonesian Institute of Sciences (LIPI)

This paper reviews the current status of mysid taxonomy in Southeast Asia, encompassing the South China Sea as far north as Hong Kong, the Andaman Sea, the Philippines, and the Indonesian seas as far south as the northern Australian waters. According to the 188 scientific papers published before 2013, 23 species in five genera of the Order Lophogastrida and 207 species in 63 genera of the Order Mysida have been recorded from these waters. This amounts to about 20 % of the recent species of these orders so far reported in the world. The occurrence recordsof these species were summarized in a table and a figure. On the basis of this body of information, it is suggested that there is an urgent need for research to improve our understanding of the biodiversity of mysids in this region.

BUTYLTIN RESIDUES IN SEDIMENTS FROM THE EASTERN GULF OF THAILAND Praditsup, Nichaya; Wattayakorn, Gullaya
Marine Research in Indonesia Vol 39 No 1 (2014)
Publisher : Research Center for Oceanography - Indonesian Institute of Sciences (LIPI)

Concentrations of monobutyltin (MBT), dibutyltin (DBT) and tributyltin (TBT) compounds were analyzedÂ in surface sediment samples collected from twelve stations along the Eastern Gulf of Thailand. The total butyltinÂ (â??BTs) concentrations ranged between <1 and 109.7 ng gÂ (dry weight). The overall concentration ranges foundÂ in the sediments were from <1 to 79.81 ng g-1Â for MBT, from <1 to 9.5 ng gÂ -1Â for DBT, and from <1 to 29.8 ng g-1 for TBT, on a dry weight basis. MBT generally prevailed in most of the samples, suggesting the occurrence of old inputs of butyltin compounds in the area. Butyltin compounds were also measured in Nassarius sp., where â??BTs concentrations were found to range between <1 and 238 ng g-1 (wet weight). The level of butyltin compounds in gastropod tissue samples tended to be related to that of the sediments and percentage of imposex incidence.

SEASONAL CHANGE IN THE DIEL PATTERN OF THE PSEUDO-NITZSCHIA POPULATION IN THE CISADANE RIVER ESTUARY: RESPONSE TO THE CHANGES IN THE WATERÃ¢â‚¬â„¢S PHYSICAL-CHEMICAL PARAMETERS Rachman, Arief; Thoha, Hikmah
Marine Research in Indonesia Vol 39 No 1 (2014)
Publisher : Research Center for Oceanography - Indonesian Institute of Sciences (LIPI)

Seasonal changes of Pseudo-nitzschia diel dynamics in an estuarine ecosystem have been known to be regulated by salinity, water temperature and nutrient dynamics. In this study, we aimed to investigate the effect of these physical-chemical factors on the diel pattern of the Pseudo-nitzschia population in the Cisadane River estuary.Plankton samples were collected from a diel station at two different periods, in the dry season (May-June) and thewet season (September). Plankton samplings were done in a 24 hour period with 3 hourly sampling intervals. The result showed a higher abundance of Pseudo-nitzschia in the dark-period during the dry season, while during the wet season the abundance was higher in the light-period. Nitrate and phosphate concentrations were suggested as important factors in facilitating Pseudo-nitzschia maxima. The low abundance of Pseudo-nitzschia in the estuarycould be due to the relatively low N:P ratio (<10). The results showed that the Cisadane River estuary was strongly influenced by seawater during the night and by freshwater during day. The GLM analysis suggested that there were changes in the species omposition of the Pseudo-nitzschia population in the ecosystem. The oligohaline species was found to be abundant in the dry season, the maxima occurred at night, which is probably related to a highermarine influence in the ecosystem. Conversely the polyhaline species was abundant in the wet season, with the maxima occurring during daylight, which might be related to a stronger freshwater influence in the ecosystem.

BIOACCUMULATION OF CADMIUM (CD) BY WHITE SHRIMP PENAEUS MERGUIENSIS AT DIFFERENT SALINITY IN KEDUNGMALANG ESTUARY, JEPARA (CENTRAL JAVA) Manullang, Corry Yanti; Hutabarat, Johannes; Widowati, Ita
Marine Research in Indonesia Vol 39 No 1 (2014)
Publisher : Research Center for Oceanography - Indonesian Institute of Sciences (LIPI)

Estuarine of Kedungmalang has salinity variability and is assumed to bepolluted by cadmium (Cd) derived from human activities around Kedung region. In this study, bioaccumulation of Cd by white shrimp PenaeusÂ merguienis in relation with salinity difference was determined. Sampling was conducted at four stations : estuary (15â?° and 25â?° of salinity) and husbandry area (15â?° and 25â?° of salinity). Data on in situ water quality parametersÂ was obtained at each station. Absorption Atomic Spectrometer was used to measure Cd concentration. The water quality of parameters and the concentrations of Cd in the shrimp were compared with quality standards and weeklyÂ consumption limit of white shrimps is also suggested. The Cd concentrations on the white shrimp was found the highest concentration of 0.669 Î¼g.g-1 . The limit comsumption of the white shrimp of Estuarine of Kedungmalang,suggested by the resut of this study, is about 523-1537 grams per week.

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Aan J. Wahyudi

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Kota adm. jakarta selatan,

Dki jakarta

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