A5067477629- Ichthyology and Marine Biology
- Fish Biology and Ecology Studies
- Aquatic life and conservation
- Marine and fisheries research
- Identification and Quantification in Food
- Marine and Coastal Ecosystems
- Fish Ecology and Management Studies
- Paleontology and Evolutionary Biology
- Child Development and Education
- Marine animal studies overview
- Advancements in Battery Materials
- Coral and Marine Ecosystems Studies
- Educational Methods and Impacts
- Agriculture and Agroindustry Studies
- Education and Character Development
- Energy and Environment Impacts
- Cultural and Artistic Studies
- Forest Ecology and Conservation
- Agricultural and Environmental Management
- Magnetic Properties and Synthesis of Ferrites
- Process Optimization and Integration
- Electrical and Thermal Properties of Materials
- Air Quality Monitoring and Forecasting
- Facility Location and Emergency Management
- English Language Learning and Teaching
National Research and Innovation Agency
2022-2025
Sepuluh Nopember Institute of Technology
2024
National Nuclear Energy Agency of Indonesia
2023
Indonesian Institute of Sciences
2009-2021
The University of Queensland
2020-2021
Universitas Kutai Kartanegara
2019
Pusat Penelitian Arkeologi Nasional
2013-2017
Ministry of Research, Technology and Higher Education
2017
Institute of Oceanology
2017
Abstract Sharks and rays are key functional components of coral reef ecosystems, yet many populations a few species exhibit signs depletion local extinctions. The question is whether these declines forewarn global extinction crisis. We use IUCN Red List to quantify the status, trajectory, threats all sharks worldwide. Here, we show that nearly two-thirds (59%) 134 coral-reef associated shark ray threatened with extinction. Alongside marine mammals, among most groups found on reefs....
Parmaturus nigripalatum, a new species of catshark the genus is described from single specimen collected deep-water shark longliner operating in south Sumbawa waters, Indonesia. This distinguished its closest geographic congener P. lanatus by having prominent enlarged caudal crests, well-developed labial furrows with uppers and lowers equal lengths, mouth roof blackish dark pores, first dorsal fin origin more posteriorly positioned on body trunk, much lower tooth counts than all other known...
Indonesian waters have a high diversity of sharks and rays, with at least 118 species belonging to 25 families found throughout the vast archipelago. Indonesia also has highest shark landings globally nearly all high‑value are overexploited could be considered threatened. This situation is international concern, especially among conservationists elasmobranch scientists. Most catch in taken as bycatch fisheries deploying various types gear, including longlines, driftnets, handlines...
A new genus and species of catshark is described based on a single specimen collected off Ambon in the Maluku Islands eastern Indonesia. Akheilos suwartanai belongs to subfamily Schroederichthyinae which differs from other catsharks combination of: similar sized dorsal fins, supraorbital crests present, pseudosiphon present claspers, broad subocular ridges under eyes, posterior nasal flaps tips rostral cartilage fused into node. It represents first record this outside Americas. subfamily,...
International concern is growing with regard to the sustainability of manta and devil ray (collectively mobulids) fisheries as demand for mobulid products has increased in international markets over last decade. While Indonesia been reported be one worlds’ top three catchers rays, detailed information on these status Indonesian populations are lacking. Through collection historical recent mobuild data from published unpublished sources, this study aimed identify trends abundance rays explore...
Indonesia is home to significant populations of globally vulnerable reef manta rays (Mobula alfredi) in at least four key regions: Berau, Nusa Penida, Komodo, and Raja Ampat. Despite detailed population studies each these regions, little known about their horizontal movement patterns. Our study used satellite telemetry investigate rays’ habitat use ranges. A total 33 were tagged with SPLASH10F-321A tags across the Berau (n = 5), Penida 8), Komodo 6), Ampat 14), yielding usable data from 25...
In this paper, we present the investigation of impact cation ordering on structural, electrical, and electronic properties a cubic spinel LiNi0.5Mn1.5O4. Rietveld refinement using X-ray diffraction (XRD) data reveals that LiNi0.5Mn1.5O4 annealed at 700 °C adopts well-ordered atomic arrangement in (SG = P4332). Then, it is transformed to disordered Fd-3m) higher temperatures (> 800 °C). Impedance spectroscopy employed evaluate dielectric electrical temperature range 0 25oC within frequency...
AbstractSharks are commonly caught in Indonesian waters both by target fisheries and as bycatch. Fishers targeting sharks mostly employ drift longlines, whereas tuna longlines gillnets the gear responsible for shark Our studies on have been conducted since 2006 focused eastern Indian Ocean region, most exploited area waters. Sharks landed bycatch fishery (using gillnets) Cilacap, Central Java province, targeted catch pelagic at Tanjung Luar (Lombok, West Nusa Tenggara province), one of...
Abstract CITES (the Convention on International Trade in Endangered Species of Wild Fauna and Flora) aims to ensure that international trade specimens wild animals plants does not threaten their survival. However, measuring the effectiveness impacts these regulations for commercially exploited aquatic species remains challenging. This study highlights observed or documented changes elasmobranch fisheries eight Southeast Asian countries before after listing sharks rays ’ Appendix II ,...
Pembangunan perumahan dan kawasan permukiman merupakan kebutuhan dasar manusia yang mempunyai fungsi strategis sebagai pusat pendidikan keluarga, persemaian budaya, peningkatan kualitas generasi akan datang, serta pengejawantahan jati diri. Salah satu perwujudan tercapainya kesejahteraan rakyat ditandai dengan meningkatnya kehidupan layak bermartabat melalui pemenuhan papan salah manusia. Dengan demikian pembangunan bidang dalam upaya Indonesia seutuhnya kegiatan bersifat multi sektor,...
Penelitian ini bertujuan untuk mengembangksan dan meningkatkan kreativitas anak usia dini Dalam proses pembelajaran Melalui penggunaan media laser part loose dapat mengembangkan berbagai aspek, agar tercipta tujuan yang menyenangkan penelitian dilakukan menggunakan metode Deskriptif kualitatif. memfokuskan pada kemampuan anak. Loose adalah fasilitas diperlukan dalam bermain berupa benda sifatnys dari lingkungan alam atau tempat tinggal bisa dimodifikasikan sendiri.dapat membantu saat belajar...
Fahmi, Sentosa AR. 2017. Biology and fisheries aspects of Western Longnose Spurdog, Squalus edmundsi from the Eastern Indian Ocean, Indonesia. Biodiversitas 18: 1714-1722. A research has been done to determine some biological Spurdog (Squalus edmundsi) Ocean Fishing Region in Indonesia (WPP 573). total 1797 samples were recorded bottom longline at Tanjung Luar, Lombok July 2015 November 2016 by a trained enumerator. The study revealed that Selat Alas south west Sumbawa waters are most fished...
The biological aspects of members the order Orectolobiformes exploited in Indonesian waters are given. Seven species belonging to five families were recorded catches at various landing sites southern Indonesia. Of these, Chiloscyllium punctatum was most abundant landed, contributing >50% number orectolobiforms recorded. data obtained varied greatly between listed. total length ( L T ) maturity for some species, e.g . C. and Nebrius ferrugineus , from that which has been previously those...
The bamboo sharks, genus Hemiscyllium, comprises a group of nine species mainly restricted to New Guinea and northern Australia, including islands, reefs, shoals separated from mainland areas by shallow seas. Indonesian island Halmahera is the only location lying outside core region that inhabited these sharks. in are reviewed their approximate distribution documented, as follows: H. freycineti (Raja Ampat Islands, West Papua); galei (Cenderawasih Bay, hallstromi (Torres Strait, Australia...
It can be challenging to identify the forces that drive speciation in marine environments for organisms are capable of widespread dispersal because their contemporary distributions often belie historical processes were responsible initial diversification. In this contribution we explore likely sequence events radiation walking sharks genus Hemiscyllium using a dated molecular phylogeny. The nine currently recognised species consist small, benthic restricted Indo-Australian Archipelago and...
A study on four common shark species in Indonesia, the spinner Carcharhinus brevipinna (Muller and Henle, 1839), silky falciformis (Bibron, spot-tail sorrah (Valenciennes, 1839) scalloped hammerhead Sphyrna lewini (Griffith Smith, 1834) was conducted at several landing sites western Indonesia from March 2002 to December 2004. Data were collected surveyed areas including length of frequency, sex composition maturity. In general, they caught size smaller than their maturity size. The...
The need for electrical energy in remote areas Indonesia is essential. use of Renewable Energy until 2020 will only reach 2.5% or around 10.5 gigawatts its total potential. government targeting % a national mix 23% to be sourced from renewable 2025. Pinal Village has an area 295 Ha consisting 48 heads families with population approximately 182 people whose livelihoods are primarily farmers and servants. village one the villages Sianjur Mula-mula sub-district, surrounded by mountains. There...
The limited supply of fossil fuels towards carbon neutrality has prompted massive efforts to replace fuel vehicles with electric vehicles. This research investigates the recovery lithium in leaching solutions through solvent extraction experiments using several experimental parameters such as ratio, time, concentration, type diluent and stirring speed. Lithium Sidoarjo mud been carried out a hydrometallurgical process followed by extraction. used is Di-(2-ethylhexyl) phosphoric acid (D2EHPA)...
Indonesia has a very diverse shark and ray fauna is the largest chondrichthyan fisheries in world. Most of sharis are caught by longlines gillnets rays both as target, e.g. tangle net demersal gillnet fisheries, bycatch other such drift gittnet, trammel a-nd long line fisheries.
Indonesia is considered to have a high diversity of sharks and rays due in part its position the equatorial line, between two continents oceans. According recent studies various publications, number chondrichthyan species known date 207 44 families, comprised 109 sharks, 96 batoids, ghost (chimaera). The Dasyatidae (stingrays) most speciose family chondrichthyans occurring Indonesia, followed by Carcharhinidae (whaler sharks). Most elasmobranchs commonly occur on continental or insular...