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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 85 Documents
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POTENSI MIKROORGANISME SEBAGAI AGEN BIOREMEDIASI MIKROPLASTIK DI LAUT Milani Anggiani
OSEANA Vol 45 No 2 (2020)
Publisher : Pusat Penelitian Oseanografi LIPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/oseana.2020.Vol.45No.2.92

Abstract

Microplastic is a threat to the survival of organisms on terrestrial and ocean. Microplastic waste accumulation from human activities will accumulate in the environment. The presence of microplastics in the environment is a problem because plastics are persistent. Plastics often contain chemicals that are potentially toxic and carcinogenic. They are consumed by organisms that will affect aquatic life. Plastic waste in the ocean will directly or indirectly poison the marine biota, damaging coral reefs which will further damage the balance of the marine ecosystem. The process of decomposition of plastic waste into microplastics takes hundreds of years through physical, chemical, and biological processes. The problem of microplastic waste can be overcome by biotechnology approaches. One of the strategies to control microplastic pollution is remediation technology by utilizing the potential of indigenous bacteria that grow in their natural environment. Furthermore, the use of bioremediation agents from other microorganisms has been carried out among them, using Fungi and Actinomycetes. The potential of microplastic degrading microorganisms in sea waters has not been done in depth, especially studies in improving the ability of microorganisms to degrade microplastics. The purpose of writing this review is to review the potential of microplastic degrading bacteria originating from marine waters.
ASPEK BIOLOGI UBUR-UBUR API, Physalia physalis (LINNAEUS, 1758) Mochamad Ramdhan Firdaus
OSEANA Vol 45 No 2 (2020)
Publisher : Pusat Penelitian Oseanografi LIPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/oseana.2020.Vol.45No.2.94

Abstract

Physalia physalis is one of the jellyfish believed to be responsible for a significant proportion of jellyfish attack cases in the world. As one of the most dangerous members of the Cnidarian in the sea, P. physalis has a sting that can paralyze their prey. To humans, the sting can cause cardiotoxic, neurotoxic, musculartoxic, and hemolytic effects. P. physalis has different biological characteristics than most organisms. For example, an individual of P. physalis actually is a colony consisting of four groups of individuals who have different structures and functions. The arrangement of the colony has a complex structure and shows a polymorphism. P. physalis is a pleustonic organism because they live on the surface of the water. P. physalis still leaves many mysteries to scientists. For example, the life cycle of a P. physalis is not yet fully known. Besides, the diversity of P. physalis also still leaves questions among scientists. Some believe that P. physalis is monotypic, while others suspect there is cryptic diversity. Therefore, the study of P. physalis is very interesting, especially under the issue of climate change. Many scientists believe that jellyfish get benefit from increasing sea temperatures, so the population is predicted to increase. The high population of P. physalis threatens the sustainability of fish stocks in the ocean, mainly due to P. physalis are productive predators of fish larvae. This paper aims to provide information on the biological aspects of P. physalis, which are still limited in Indonesia.
ASPEK BIO-EKOLOGI DAN PEMANFAATAN KERANG MARGA ANADARA (MOLLUSCA: BIVALVIA: ARCIDAE) Eka Sulistiyaningsih; Ucu Yanu Arbi
OSEANA Vol 45 No 2 (2020)
Publisher : Pusat Penelitian Oseanografi LIPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/oseana.2020.Vol.45No.2.95

Abstract

One of various shellfish in Indonesia waters that has high economic value is genus Anadara, especially as an edible marine species. Anadara is traditionally known in the trade as blood cockles. There are approximately 100 species of blood cockles in subfamily Anadarinae, the largest member of family Arcidae. Systematic of Anadarinae still does not provide certainty until now, including because there are many variations between species. Anadara, and Arcidae, in general, is one of the most abundant families of mollusc in tropical waters, and spread out in almost all of the coastal waters and found in the basis of subsystems. Its growth will be better on soft mud substrate than sandy mud substrate. Blood cockles are known as a filter feeder that feeds using gills on plankton, especially on phytoplankton. The demand for blood cockles is increasing, thus encouraging production efforts that do not only rely on harvesting from nature but through cultivation also that has been done in several places in Indonesia, such as in Sumatra and Java. This paper discussed taxonomy and classification, morphology and anatomy, habitat and distribution, reproduction and aquaculture, diet and feeding habit, and economic value of blood cockles.
PROFIL VERTIKAL DAN HORIZONTAL PARAMETER SALINITAS, DHL, DAN TDS BERDASARKAN VARIASI MUSIMAN DI ESTUARI SUNGAI CITARUM Nurul Fahimah; Annisa Dwi Damayanti; Venny Ulya Bunga; Haryo Mubiarto
OSEANA Vol 46 No 1 (2021)
Publisher : Pusat Penelitian Oseanografi LIPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/oseana.2021.Vol.46No.1.99

Abstract

Salinity, electrical conductivity (EC), and Total Dissolved Solid (TDS) are parameters that pose an important role in the distributions of environmental pollution substances in the estuary. The difference in salinity, EC, and TDS concentration vertically (based on the depth in the water column) and horizontally (based on the distance from the estuary mouth) will affect the process of pollutant’s transportation and transformation in the estuary. On the other hand, seasonal variations will also affect parameters. Therefore, the information related to the vertical and horizontal profiles of salinity and other parameters based on seasonal variations is necessary to study. The purpose of this study is to analyze the vertical profile and horizontal-vertical of salinity, EC, and TDS concentrations during the rainy season and dry season in the estuary of Citarum River. This research was conducted in April 2018 (rainy season) and August 2018 (dry season) when the low tide. The measurement of salinity, EC, and TDS was directly conducted in the field using a conductivity meter. The results show that the concentration level of salinity, EC, and TDS showed a vertical and horizontal difference in the estuary of the Citarum River. In addition, there are differences in the concentration of salinity, electrical conductivity, TDS in the rainy season and dry season in the estuary of the Citarum River. The level of TDS has a linear relationship between salinity and electrical conductivity, with a value of R2 >95%.
SPESIASI DAN BIOGEOGRAFI IKAN DI KAWASAN SEGITIGA TERUMBU KARANG Fione Yukita Yalindua
OSEANA Vol 46 No 1 (2021)
Publisher : Pusat Penelitian Oseanografi LIPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/oseana.2021.Vol.46No.1.101

Abstract

The coral triangle is a region with the highest hotspot of fish biodiversity in the world. Factors to explain biodiversity in the coral triangle are varied widely. Factors as well as biogeography and speciation in evolutionary processes would explain the richness of fish species. The species formation theory in fish (speciation) is divided into allopatric, sympatric, and parapatric speciations. Biogeographically, the reason of what causes high biodiversity in the coral triangle area is divided into several models, namely: the center of origin, the center of overlap, the center of accumulation, the center of survival/refugia, and the mid domain effect/null model. This article will discuss the role and contribution of each mode/hypothesis in explaining coral triangle areas' biodiversity hotspots to provide information for biodiversity conservation of reef fishes in the future.
KONDISI TERUMBU KARANG DI PERAIRAN PULAU BATU BILIS, BUNGURAN UTARA, KABUPATEN NATUNA Juardi Mardani; Dedy Kurniawan; Susiana Susiana
OSEANA Vol 46 No 1 (2021)
Publisher : Pusat Penelitian Oseanografi LIPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/oseana.2021.Vol.46No.1.103

Abstract

The purpose of this study was to determine the type of coral life forms and cover percentages on Batu Bilis Island. This research was conducted by purposive sampling method, where the determination of the 3 (three) research locations in this study were based on coral location observations and map images. The study results show there are 9 (nine) types of coral life forms in Location 1 dominated by 13.47% of Coral Massive (CM), 7 (seven) types of coral life forms in Location 2 dominated by 17.13% of Acropora encrusting (ACE), and 13 types of coral life forms in Location 3 dominated by 28.90% of Coral Massive (CM). The coral cover percentages are 40.90% of the medium category in Location 1, 31.60% of the medium category in Location 2, and 53.90% of the good category in Location 3. The condition of environmental parameters in Batu Bilis Island was considered good for coral reefs.
KONDISI TERUMBU KARANG DI KAWASAN WISATA PULAU BOKORI, KENDARI, PROVINSI SULAWESI TENGGARA Ofri Johan; Jupri Jupri; Fella Pritian Cera; Ahmad Rezza Dzumalex; Ratna Diyah Palupi; Imam Bactiar
OSEANA Vol 46 No 1 (2021)
Publisher : Pusat Penelitian Oseanografi LIPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/oseana.2021.Vol.46No.1.105

Abstract

Bokori Island has been a tourist destination managed by the Tourism Office of the Southeast Sulawesi Provincial since 2014. The location is close to the city center, making this island visited by many tourists. In addition to the beauty of the island, it is also necessary to maintain the beauty of coral reefs as objects for underwater recreation. The study was conducted on 24–25 July 2019 at three sites of observation. The research purpose was to determine the condition of coral reefs of the island, which is used as a tourist destination. The result indicates that the condition of coral reefs is categorized good by having coral cover about 50.67%. The dominant coral at the island is the foliose coral (CF) group with percent cover about 22%, followed by coral branching (CB) 10%, Acropora tabulate (ACT) 8.57%, mushroom coral (CMR) 6%, encrusting coral (CE) 2% and massive coral (CM) 1.33%. The dominant type of substrate was dead coral with algae (DCA) about 37.3%, and the damage due to explosion could still be seen in the location. The current condition of coral needs to be maintained and improved supervision so that live coral can improve so that the function to support underwater tourism can be achieved.
BIOTURBATOR SEBAGAI PEREKAYASA EKOSISTEM DI PESISIR DAN LAUTAN Allsay Kitsash Addifisyukha Cintra
OSEANA Vol 46 No 1 (2021)
Publisher : Pusat Penelitian Oseanografi LIPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/oseana.2021.Vol.46No.1.111

Abstract

A bioturbator is a biota that can change sediment either directly or indirectly through stirring particles and/or moving water. Changes in the sediment affect the resources that will affect the existence of other organisms. This paper aims to explain bioturbators and their roles as ecosystem engineers in coastal and marine environments. Bioturbators are classified into two main groups, namely reworking organisms and burrow ventilation organisms. Bioturbator affects the biogeochemistry of sediment and the sediment physical structure, both of which cause the formation of new habitats that can be used by other organisms. This, in turn, will affect the structure of the benthic community. It is necessary to understand how bioturbators work and how big their effect is so that they can be used for habitat conservation and restoration in the future.
GELOMBANG PANAS LAUT Dewi Surinati
OSEANA Vol 46 No 2 (2021)
Publisher : Pusat Penelitian Oseanografi LIPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/oseana.2021.Vol.46No.2.96

Abstract

The hot temperature on Earth and ocean dynamics processes could cause the phenomenon of a heatwave. Besides land, heatwaves could occur in the ocean, known as marine heatwaves (MHWs). Understanding the MHWs is important because of their huge impact on marine life and humans. Therefore, it is hoped that we can protect vulnerable marine habitats and resources by increasing general awareness of this phenomenon, and by increasing our scientific understanding of its physical properties and ecological impacts.
STRUKTUR KOMUNITAS MANGROVE DAN TEKANAN YANG DIHADAPI AKIBAT AKTIVITAS MASYARAKAT: STUDI KASUS PESISIR PANTAI SEBANJAR, KABUPATEN ALOR Sari Hauliah Ahmad Koda
OSEANA Vol 46 No 2 (2021)
Publisher : Pusat Penelitian Oseanografi LIPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/oseana.2021.Vol.46No.2.106

Abstract

This study aims to analyze ecologically the mangroves in Sebanjar coastin Alor Regency by looking at the important value index and diversity index, as well as to see and describe the behaviors of coastal communities that have positive and negative impacts on the mangrove ecosystem. The method used to determine the ecological condition of mangroves is the quadratic transect method to obtain data on density, frequency, dominance, important value index and mangrove diversity index. The method of interview and observation at the research site was conducted to determine the people behavior that had positive or negative impacts on the mangrove ecosystem. The result shows that there were three species of mangrove in this location, i.e. Sonnetaria alba, Bruguiera sexangular, and Lumnitzera racemose. The average Diversity Index in each location indicated that the ecological condition of the mangrove forest is in a depressed condition due to human activities. The behavior of the community that has a negative impact on the mangrove forest on the coast of Sebanjar Beach is illegal logging, garbage disposal in the coastal area, deflection of fresh water for irrigation and the conversion of mangrove forest land into fields and salt ponds. However, there are community behaviors that have a positive impact on mangrove forests, namely by participating in planting and maintaining mangroves that have been provided by the government and non-govermental organization.

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