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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
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Search results for , issue "Vol 44 No 1 (2019)" : 6 Documents clear
SITE SUITABILITY ANALYSIS FOR COMMUNITY-BASED TROPICAL SEA CUCUMBER HOLOTHURIA SCABRA GROW-OUT IN NORTH SULAWESI WATERS Rizqi, Marenda Pandu; Supono, -
Marine Research in Indonesia Vol 44 No 1 (2019)
Publisher : Research Center for Oceanography - Indonesian Institute of Sciences (LIPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/mri.v44i1.301

Abstract

North Sulawesi, a region that has experienced a decreasing population of commercial sea cucumbers in Indonesia, has recently been designated an aquaculture development area. Recent developments of sea cucumber Holothuria scabra hatchery technology have successfully enabled the small-scale enterprise to produce hatchery-reared sandfish for restocking purposes. However, the grow-out phase requires considerable resources including ex-situ grow-out sites, labor, and distribution. This study aims to investigate the suitability of some potential grow-out sites for juvenile H. scabra in North Sulawesi waters. Three traditional sea cucumber fishing grounds in coastal areas of North Minahasa regency in North Sulawesi, i.e., Tanjung Merah, Tasikoki and Makalisung, were examined to determine their suitability as a grow-out site. Several criteria encompassing bioecological (native sea cucumber population, seagrass bed population, competitor/predator), environmental (substrate, protection to weather, water quality, tidal cycle), and technical/support (access, safety, labor) were assessed in each site. Site suitability analysis using a multi-criteria decision-making tool, Analytical Hierarchy Process (AHP), shows that Tasikoki has the highest suitability score (48.94%) followed by Tanjung Merah (27.18%) and Makalisung (23.88%). Tasikoki scores higher than the two other sites in 7 out of 11 sub-criteria, including native sandfish population, seagrass species, substrate, weather protection, safety, and community support. Our finding suggests that Tasikoki is bioecologically, environmentally, and technically the best potential site to be developed for H. scabra juvenile grow-out.
FASTING IN HYBRID GROUPER EPINEPHELUS FUSCOGUTTATUS X EPINEPHELUS LANCEOLATUS IN RELATION TO PROXIMATE CONTENTS, GROWTH AND FEED EFFICIENCY Asih, Yasmina Nirmala; Mahardika, Ketut; Susanto, Bambang
Marine Research in Indonesia Vol 44 No 1 (2019)
Publisher : Research Center for Oceanography - Indonesian Institute of Sciences (LIPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/mri.v44i1.291

Abstract

Fasting in fish was used to improve quality of fish product post-slaughtered. The aims of the study were to investigate alteration of nutrition contents, growth and feed efficiency of hybrid grouper fasted on certain day intervals. There were two experiments in this study; the first experiment was to evaluate alteration nutrient contents of carcasses and livers of hybrid grouper. The fish were grouped into 3 feeding regimes. Group of fish one (n=50) were fed daily. Group of fish two (n=50) were fasted on one day interval. Fish of group three (n=50) were fasted on two days interval. The second experiment was to evaluate growth and feed efficiency of the fish. Hybrid grouper were subjected to two feeding regimes. Group of fish one (n=45) were fed daily and group of fish two (n=45) were fasted on two days interval. The first and second experiments were conducted for one and two months, respectively. The results showed that hybrid grouper fed daily had the lowest protein and the highest fat in the carcass compared to those fasted on one or two days interval. In the first month, there was no difference between growth rate of the fish fed daily and fasted on two days interval (32.88 and 32.08%, respectively). However, in the second month, the fish fed daily (66.08%) had 1.4 times higher growth rate than those fasted on two days interval (48.12%). To sum up, fasting in hybrid grouper could alter proximate contents, slow down growth and improve feed efficiency.
PHYSIOLOGICAL RESPONSE AND GROWTH PERFORMANCE OF SPINY LOBSTER (Panulirus homarus) JUVENILE REARING IN RECIRCULATING AQUACULTURE SYSTEM WITH VARIOUS SHELTER TYPE Adiyana, Kukuh; Zulkarnain, Riza; Thesiana, Lolita
Marine Research in Indonesia Vol 44 No 1 (2019)
Publisher : Research Center for Oceanography - Indonesian Institute of Sciences (LIPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/mri.v44i1.285

Abstract

Spiny lobster nursery is done to produce more adaptive and uniform juvenile lobsters quality. Shelters used in spiny lobster nursery served to reduce physical contact among lobsters in rearing tank. The purpose of this study was to analyze the effect of different shelter types on physiological response and growth of spiny lobster (Panulirus homarus) juvenile rearing in recirculating aquaculture system. Lobsters with an average weight 51,29 ± 7,26 gram, were reared for 60 days. They were feed once a day with trash fish. Daily feeding rate was 3-4%  of total weight.This study used four types of shelter as treatments with two replications. PVC pipe shelter as control (K), individual shelter square shaped (IS ?), individual shelter triangle shaped (IS ?) and individual shelter  tube shaped (IS ?).The results of this study showed that IS ?  used  in   rearing Panulirus homarus showed lower stress response than the other treatments, in terms of glucose.and total protein lobster hemolymph during the study. IS ? is the best, because it reduced stress level and yielded better total biomass among the other treatments.
COMMUNITY STRUCTURE OF GASTROPOD IN THE WATUKARUNG VILLAGE INTERTIDAL ZONE, DISTRICT OF PACITAN, EAST JAVA, INDONESIA Setyono, Dwi Eny Djoko; Kusuma, Hollanda Arief; Poeteri, Nandike Ayudiah; Bengen, Dietrich G; Kurniawan, Ferry
Marine Research in Indonesia Vol 44 No 1 (2019)
Publisher : Research Center for Oceanography - Indonesian Institute of Sciences (LIPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Gastropod is a class of snail with the biggest number of species from the mollusk phylum, since it is able to adapt with any type of habitat. Watukarung Village, which has unique characteristic of its rocky beaches and sand dunes, is one of many habitats of gastropods in the intertidal zone. Thus, a basic information on the structure of the gastropods community in the area is required. Research was conducted in August 2014 in Ngalorombo Beach, Pasir Putih Beach, and Kasap Beach. Systematic sampling was applied using the quadratic plot of 1 x 1 m2, while data analyses comprised of density, Shannon-Wiener index, Eveness index, Simpson index, and correspondence analysis. The gastropods were found in studied areas consist of 8 families, 9 genera, and 13 species. The highest density and the most diverse of the category were in Kasap Beach. Eveness index and Simpson index of the species in the three beaches were in the low category. There was a tendency of the gastropods to live in the habitat made up of coarse sand and stones with good water quality, as shown in the result of the correspondence’s analysis.
A SEDIMENT CARBON STOCK OF WEST KALIMANTAN MANGROVE FOREST Nuraya, Tia; Koropitan, Alan F.; Wahyudi, A'an J.
Marine Research in Indonesia Vol 44 No 1 (2019)
Publisher : Research Center for Oceanography - Indonesian Institute of Sciences (LIPI)

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Abstract

The present study aims to investigate the influence of oceanographic factor and riverine input on  mangrove ecosystem and their ability in  absorbing carbon. The location of the study was conducted in two different locations in West Kalimantan, which are (1) Mempawah and (2) Bakau Besar. The sediment sampling was carried out using PVC pipes in the middle of the transect point and taken within ± 20 cm depth. After laboratory pre-treatment, we analyzed the carbon content using CHN Analyzer. The results showed that station 3 of Mempawah and station 2 of Bakau Besar have a high organic carbon content, i.e., 6.46 ± 0.23 ton C/ha and 14.93 ± 1.43 ton C/ha, respectively. We also found that input organic carbon in the river (location 2) and canal (location 1) were higher at high tide than low tide. Besides that, we also found that the sediment type at station 3 of Mempawah is categorized as silt (75%) and fine sand (± 0.24%). Whereas at station 2 of Bakau Besar, the sediment contains silt (68%) and fine sand (± 2%). In addition, those two stations have a total mangrove density up to 13519 individuals/ha and 9928 individuals/ha, respectively. According to this findings, we suggest that high organic carbon is influenced not only by high biomass density but also by the oceanographic factor that affects load of organic carbon in river and canal, and the difference of sediment types that are influenced by breaking wave height at the study site. Keywords: mangrove ecosystem, organic carbon, oceanographic factor, West Kalimantan
BRIDGING COASTAL RESEARCH PROGRAM BETWEEN INDONESIA AND JAPAN Arifin, Zainal; Saito, Hiroaki
Marine Research in Indonesia Vol 44 No 1 (2019)
Publisher : Research Center for Oceanography - Indonesian Institute of Sciences (LIPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (640.761 KB) | DOI: 10.14203/mri.v44i1.551

Abstract

The JSPS Core-to-Core Research and Education Network on Coastal Ecosystems in Southeast Asia (RENSEA) 2016-2019 program has benefited Indonesian and Japanese researchers, as well as researchers in Southeast Asia. The program consists of three research groups; G1: Physical oceanography, G2: Biodiversity, and G3: Marine pollution. Considering the vast geographical area of Indonesia, managing joint research at the national level is challenging. Few active members, lack of funding, as well as the reorganization of research institutions over the last two years, pose more challenges. Funding as an engine of research execution has become highly competitive in recent years; therefore, research groups need to be more active in securing available funding at the national level, such as the COREMAP-CTI demand-driven research program, LPDP research scheme, and INSINAS research fund. From the science management perspective, the regional Core-to-Core RENSEA program needs to adapt to global trends in marine science with closer communication during the planning and execution of research projects. We recommend that joint research projects are developed to have more joint supervisory of graduate students; therefore, the collaboration would result in joint research publications and formal degrees for young scientists at the end of the program. In this way, the JSPS Core-to-Core program would have more significant benefits to the development of coastal science and research cooperation.

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