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INDONESIA
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 4 Documents
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Search results for , issue "Vol 46 No 2 (2021)" : 4 Documents clear
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.
IKAN NAPOLEON (Cheilinus undulatus), SPESIES TERANCAM PUNAH DI KEPULAUAN NATUNA DAN ANAMBAS Ayuningtyas Indrawati; Suparmo Suparmo
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.2.112

Abstract

Napoleon fish (Cheilinus undulatus) is one of the high value commodities in the live reef fish trade. The fishing pressure for this particular fish has threatened its population in the wild. The Napoleon fish was assessed as an endangered species in the IUCN Red List and listed on Appendix II of CITES (Convention on International Trade in Endangered Species). Indonesia is one of the largest exporters of the Napoleon fish, with the biggest source of exports from Natuna and Anambas Islands. The utilizations of Napoleon resources in Natuna and Anambas Islands include: (a) capturing juveniles from nature; (b) raising juveniles in capture-based aquaculture; and (c) exporting the Napoleon fish (Ranched-sourced) to Hong Kong as the main destination. The abundance of Napoleon fishes in the Natuna and Anambas Islands was very low. The management effort of Napoleon fisheries at the national level was regulated by implementing size limitation and export quota system for international trade to control the number of Napoleon fishes that can be exported annually. Further research is needed to find out the abundance, distribution, and biological aspects of juvenile Napoleon fishes in the Natuna and Anambas Islands. This information is required as a basis data for management recommendations to protect the Napoleon fish population in the wild.
TINJAUAN STATUS HIU BELIMBING (Stegostoma tigrinum) DI PERAIRAN INDONESIA Fahmi Fahmi
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.2.118

Abstract

The zebra shark (Stegostoma tigrinum), or previously known as Stegostoma fasciatum, is an oviparous shark that usually inhabit in inshore and shallow coastal areas throughout the Indo West Pacific region, from South Africa to Solomon Islands. This species is found mostly on sandy substrates, around coral and rocky reefs, to at least 65 m depth. In 2019, the IUCN changed the vulnerable status of this species to be endangered due to the global population declined by 50% within the last 51 years. In contrast, the zebra shark was not classified as a threatened species in any regulations and conventions related to conservation acts both nationally and regionally. In Indonesia, this species has been caught and utilized for its fins, meat, skin, and cartilages for a long time and is often being traded as a live shark for aquaria. The ongoing exploitation of this species in this country has indicated local extinction in several locations. This paper reviews the taxonomy, biology, utilization, population, and threats on S. tigrinum in Indonesia as basic knowledge for better management of this species in the future.

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