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OSEANA
Published by Lembaga Ilmu Pengetahuan Indonesia
ISSN : 02161877     EISSN : 27147185     DOI : -
Core Subject : Science, Education, Social,
Biochemistry, Genetics & Molecular Biology Environmental Science Other
OSEANA adalah jurnal elektronik nasional yang menerbitkan artikel ilmiah yang bersumber dari penelitian maupun artikel penelaahan pustaka dalam bidang oseanografi di Indonesia. Tujuan dari penerbitan OSEANA adalah untuk memberikan informasi kepada masyarakat yang berminat terhadap bidang oseanologi yang meliputi kegiatan, perkembangan, serta hasil-hasil yang telah dicapai oleh Pemerintah Indonesia khususnya di bidang kelautan. Penerbitan jurnal ini dikelola oleh Pusat Penelitian Oseanografi LIPI dan diterbitkan dua kali setahun di bulan April dan Oktober. Redaksi menerima sumbangan karya yang behubungan dengan ilmu kelautan (oseanografi biologi, oseanografi fisika, oseanografi kimia, oseanografi geologi, dan bidang-bidang terkait lainnya) yang bersifat ilmiah. Redaksi juga menerima tulisan dari ahli/penulis dari luar Pusat Penelitian Oseanografi LIPI.
Arjuna Subject : Ilmu Bumi dan Planet (semua kategori) - Oseanografi
Articles 6 Documents
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Search results for , issue "Vol 43 No 1 (2018)" : 6 Documents clear
MENGENAL SISTEM GNOTOBIOTIK DAN PERANANNYA PADA BUDIDAYA BIOTA LAUT Marenda Pandu Rizqi
OSEANA Vol 43 No 1 (2018)
Publisher : Pusat Penelitian Oseanografi LIPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/oseana.2018.Vol.43No.1.8

Abstract

INTRODUCTION TO GNOTOBIOTICS AND ITS ROLE IN MARICULTURE. Initial colonization of microbial community in marine larvae is one of the important stage in larval development in terms of subsequent growth, immunostimulation, and pathogen elimination. Gearing towards environmentally sustainable manner of aquaculture, early microbial manipulation in larval stage may provide an alternative in efficient and productive larviculture. One of the tool to further study the host-microbe interaction is through in-vivo culture of axenic and gnotobiotic larvae, in which a germ-free larvae was produced, and subsequently induced with single strain benign microbe to observe its response and characteristics. Several methods and protocols to obtain axenic-gnotobiotic condition is highlighted, along with the current development of gnotobiotic research, particularly in commercially valuable saltwater fish, e.g. Atlantic cod and European seabass. The development of novel gnotobiotic protocols combined with different scientific approach, e.g. gene expression, quorum sensing, immunostimulants, and purified diets may provide better insight in host-microbe interaction of marine biota, which in turn will benefit the implementation of specific probiotics, prebiotics, diets, and microbial regulation in marine larviculture.
MENGENAL UNDUR-UNDUR LAUT (CRUSTACEA: DECAPODA: HIPPIDAE) DAN MANFAATNYA BAGI KEHIDUPAN Rianta Pratiwi
OSEANA Vol 43 No 1 (2018)
Publisher : Pusat Penelitian Oseanografi LIPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/oseana.2018.Vol.43No.1.9

Abstract

GET CLOSER TO KNOW THE SEA MOLE CRAB (CRUSTACEA: DECAPODA: HIPPIDAE) AND THE BENEFITS FOR LIFE. The mole crab or also known as yutuk is an animal belonging to the group of crustaceans. The crab has a small body size and live immersed in the open beach sand in the tropics and sub-tropics. In Indonesia, many are found along the beaches around Yogjakarta, Central Java. One of the most common of species is Emerita emertus, Hippa adactyla and Hippa ovalis. It is highly hunted by the locals as the crab has high economic value, especially for source of nutrious food. Ecologically the crab is an important component in the food chain, in which the crab acts as an initial consumer in trophic level. Continuous and large-scale harvesting can disrupt the stability of the population in nature, therefore knowledgebased management is required to sustain the balanced population
SILIKON TERLARUT UNTUK PERTUMBUHAN DIATOM Hanny Meirinawati
OSEANA Vol 43 No 1 (2018)
Publisher : Pusat Penelitian Oseanografi LIPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/oseana.2018.Vol.43No.1.10

Abstract

DISSOLVED SILICON FOR DIATOM GROWTH. Silicon is the second most abundant element in the earth’s crust. Silicon is an essential nutrient for diatom growth (Bacillariophyceae). Diatom require dissolved silicon to build silicate cell walls (frustule). Factors regulating diatom growth rate are cell size, concentration, heat, temperature, and concentration of Fe and Zn. The main source of dissolved silicon in the ocean is chemical weathering of rocks. The availability of dissolved silicon plays an important role in controlling the biogeochemical that regulates primary production, atmospheric CO, climate and ocean circulation. Changes in Si:N and Si:P ratios can affect the phytoplankton composition. Beside that, the function of silicon can reduce carbon dioxide levels from the atmosphere. This paper aims to provide information on the process of the occurrence of dissolved silicon in the sea and the function of dissolved silicon especially for diatom growth.
SEDIMEN DAN MANFAATNYA Helfinalis Helfinalis
OSEANA Vol 43 No 1 (2018)
Publisher : Pusat Penelitian Oseanografi LIPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/oseana.2018.Vol.43No.1.11

Abstract

SEDIMENT AND ITS BENEFITS. Sediment deposition is a form of compact material that accumulates on the surface or near the surface of the earth, under conditions of low pressure and temperature. Sediment is generally a product of old rock destruction which is transported and distributed by water or wind currents. Sediments are the result of chemical or biochemical precipitation of the solution. Learning the distribution of sediment on the seabed is desperately needed and very useful, for the initial phase to lay the wire and pipe lines on the sea, consider topography of sea (bathimetry), sedimentary texture and ocean currents. Clays are considered unfavorable for the laying of construction pole as a result of clay having a high volume change potential. Clay will undergo expansion when water increases and shrinkage occurs when the water content is less. Rock sediments of sand and limestone are useful for building materials.
POTENSI PEMANFAATAN DRONE UNTUK PENYEDIAAN DATA WILAYAH PESISIR Bayu Prayudha
OSEANA Vol 43 No 1 (2018)
Publisher : Pusat Penelitian Oseanografi LIPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/oseana.2018.Vol.43No.1.12

Abstract

POTENTIAL USE OF DRONE FOR PROVIDING DATA ON COASTAL AREA. The accurate data and information are needed for the decision maker to manage coastal area. However, the data and information of the coastal area are still lack because Indonesia has vast area and some of the locations are difficult to reach. Remote sensing is a technology that can be utilized to answer those needs. Some of the remote sensing data, especially satellite imagery can be freely acquired from various service providers using online media. Nevertheless, high resolution imagery data is still not available freely because it takes high cost and not always available at any time. One of the potential vehicle to acquire high resolution imagery data of coastal area is Unmanned Aircraft Vehicle (UAV) or widely known as drone.
PERANAN EKOLOGIS SPONS PADA EKOSISTEM TERUMBU KARANG Tri Aryono Hadi
OSEANA Vol 43 No 1 (2018)
Publisher : Pusat Penelitian Oseanografi LIPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/oseana.2018.Vol.43No.1.15

Abstract

ECOLOGICAL ROLES OF SPONGES IN CORAL REEF ECOSYSTEMS. Sponges are one of main reef benthic components which is quite abundant and worldwide distributed. Due to its unique characteristics, such as filtering water column, possessing pores throughout the body, and producing metabolite compounds, sponges play important roles in marine ecosystems. In coral reef ecosystems, the roles are very complex, including facilitating nutrient cycles, stabilizing/eroding calcareous substrates, hosting many types of marine organisms, providing protection to its symbions, competing with other marine benthos in structuring the reefs and as a bioindicator. In this case, sponges can be illustrated as a mediator between abiotic and biotic factors, thus material and energy transfers in the coral reef ecosystems can be boosted. Therefore, it is essential to monitor sponge communities in the reefs considering that its immense roles cannot likely be replaced by other marine organisms.

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