ORCID Profile
0000-0002-1657-6982
Current Organisation
Universitas Esa Unggul
Does something not look right? The information on this page has been harvested from data sources that may not be up to date. We continue to work with information providers to improve coverage and quality. To report an issue, use the Feedback Form.
Publisher: Wiley
Date: 28-09-2017
DOI: 10.1002/DTA.2262
Publisher: Elsevier BV
Date: 10-2021
Publisher: UNS Solo
Date: 26-01-2022
Abstract: Abstract. Wulandari P, Sainal, Cholifatullah F, Janwar Z, Nasruddin, Setia TM, Soedharma D, Praptiwi RA, Sugardjito J. 2021. The health status of coral reef ecosystem in Taka Bonerate, Kepulauan Selayar Biosphere Reserve, Indonesia. Bio ersitas 23: 721-732. This study assessed the coral reef conditions in a tropical marine bio ersity hotspot, Tambolongan and Polassi islands, located within the transition zone of UNESCO's Taka Bonerate Kepulauan Selayar Biosphere Reserve in Indonesia. The islands' coral reefs receive a multitude of pressures from anthropogenic activities, risking the livelihood of local communities which rely on resources, such as fish stocks, from this ecosystem. This study measured the coral and reef fish characteristics and current bio ersity status in the coastal waters surrounding the two islands. The evaluation of the coral reefs condition used the Coral Health Index (CHI), which was determined from the two main components of benthic coverage (using underwater photo transect) and reef fish assemblages. The results showed that, overall, coral reef health status in both islands could be classified as very poor (with scores ranging from 1 to 3, out of 10 for CHI), with medium to nearly low ersity for coral (H' index of 1.5 to 2.24), and medium to high ersity for reef fish (H' index of 2.90 to 3.37). This study observed the ecological responses of both habitat and fish within each environment towards the existing damages, which indicated a degree of habitat resiliency. The results obtained contribute to further understanding the extent of pressures towards the quality of marine habitats in the area. They can also be used as baseline data to devise management measures, such as rehabilitation, restoration, or monitoring programs, to ensure that sustainable development can be pursued without neglecting the necessity for conservation.
Publisher: Elsevier
Date: 2023
Publisher: The Royal Society
Date: 16-05-2022
Abstract: Despite a growing interest in interdisciplinary research, systematic ways of how to integrate data from different disciplines are still scarce. We argue that successful resource management relies on two key data sources: natural science data, which represents ecosystem structure and processes, and social science data, which describes people's perceptions and understanding. Both are vital, mutually complementing information sources that can underpin the development of feasible and effective policies and management interventions. To harvest the added value of combined knowledge, a uniform scaling system is needed. In this paper, we propose a standardized methodology to connect and explore different types of quantitative data from the natural and social sciences reflecting temporal trends in ecosystem quality. We demonstrate this methodology with different types of data such as fisheries stocks and mangrove cover on the one hand and community's perceptions on the other. The ex le data are collected from three United Nations Educational Scientific and Cultural Organization (UNESCO) Biosphere reserves and one marine park in Southeast Asia. To easily identify patterns of convergence or ergence among the datasets, we propose heat maps using colour codes and icons for language- and education-independent understandability. Finally, we discuss the limitations as well as potential implications for resource management and the accompanying communication strategies. This article is part of the theme issue ‘Nurturing resilient marine ecosystems’.
Publisher: Springer Science and Business Media LLC
Date: 22-09-2023
Publisher: Informa UK Limited
Date: 11-12-2016
DOI: 10.1080/09593330.2016.1262454
Abstract: A bloom of the non-toxic cyanobacterium Romeria elegans in waste stabilisation ponds (WSPs) within Angaston waste water treatment plant (WWTP) has posed an unprecedented treatment challenge for the local water utility. The water from the WSPs is chlorinated for safety prior to reuse on nearby farmland. Cyanobacteria concentrations of approximately 1.2 × 106 cells mL
Publisher: Frontiers Media SA
Date: 29-01-2021
DOI: 10.3389/FCOMM.2020.562828
Abstract: In the wake of the current global pandemic, international travel is restricted. This poses substantial challenges for research relationships aiming to build capacity and foster co-creation to achieve the Sustainable Development Goals, where global collaboration and communication is paramount. This is especially challenging when it comes to interactive dialogues that go beyond the typical one-way structure of online learning. Considerations on structural, technical and behavioral levels are needed to not only deal with these challenges but rather to take advantage of the new situation. This commentary outlines the lessons learned from an internationally operating project, co-developed to cope with travel restrictions. We discuss implications for future reduction of international travel to reduce carbon in the context of climate change.
Publisher: Frontiers Media SA
Date: 28-03-2023
DOI: 10.3389/FMARS.2023.1082170
Abstract: The seas of Southeast Asia are home to some of the world’s most erse ecosystems and resources that support the livelihoods of millions of people. Climate change will bring temperature changes, acidification and other environmental change, with uncertain consequences for human and natural systems, but there has been little regional-scale climate modelling of the marine ecosystem. We present initial dynamically downscaled projections using a biogeochemical model suitable for coastal and shelf seas. A coupled physical-biogeochemical model with a resolution of 0.1° (approximately 11 km) was used to create projections of future environmental conditions under moderate (RCP4.5) and high (RCP8.5) greenhouse gas scenarios. Changes for different parts of the region are presented, including four sensitive coastal sites of key importance for bio ersity and sustainable development: UNESCO Biosphere Reserves at Cu Lao Cham-Hoi An in Vietnam, Palawan in the Philippines and Taka Bonerate-Kepulauan Selayar in Indonesia, and coastal waters of Sabah, Malaysia, which include several marine parks. The projections show a sea that is warming by 1.1 to 2.9°C through the 21st century, with dissolved oxygen decreasing by 5 to 13 mmol m -3 and changes in many other environmental variables. The changes reach all parts of the water column and many places are projected to experience conditions well outside the range seen at the start of the century. The resulting damage to coral reefs and altered species distribution would have consequences for bio ersity, the livelihoods of small-scale fishers and the food security of coastal communities. Further work using a range of global models and regional models with different biogeochemical components is needed to provide confidence levels, and we suggest some ways forward. Projections of this type serve as a key tool for communities and policymakers as they plan how they will adapt to the challenge of climate change.
Publisher: Springer International Publishing
Date: 2021
Publisher: Elsevier BV
Date: 11-2022
Publisher: Elsevier BV
Date: 09-2016
DOI: 10.1016/J.SCITOTENV.2016.05.173
Abstract: In conventional water treatment processes, where the coagulation and flocculation steps are designed to remove particles from drinking water, cyanobacteria are also concentrated into the resultant sludge. As a consequence, cyanobacteria-laden sludge can act as a reservoir for metabolites such as taste and odour compounds and cyanotoxins. This can pose a significant risk to water quality where supernatant from the sludge treatment facility is returned to the inlet to the plant. In this study the complex processes that can take place in a sludge treatment lagoon were investigated. It was shown that cyanobacteria can proliferate in the conditions manifest in a sludge treatment lagoon, and that cyanobacteria can survive and produce metabolites for at least 10days in sludge. The major processes of metabolite release and degradation are very dependent on the physical, chemical and biological environment in the sludge treatment facility and it was not possible to accurately model the net effect. For the first time evidence is provided to suggest that there is a greater risk associated with recycling sludge supernatant than can be estimated from the raw water quality, as metabolite concentrations increased by up to 500% over several days after coagulation, attributed to increased metabolite production and/or cell proliferation in the sludge.
Publisher: SCITEPRESS - Science and Technology Publications
Date: 2019
Publisher: Frontiers Media SA
Date: 02-06-2021
DOI: 10.3389/FMARS.2021.638739
Abstract: Marine dinoflagellates produce chemically erse compounds, with a wide range of biological activity (antimicrobial, anticancer, treatment of neurodegenerative disease along with use as biomedical research tools). Chemical ersity is highlighted by their production of molecules such as the saxitoxin family of alkaloids (C 10 H 17 N 7 O 4 – 299 g/mol) to the hipathic maitotoxin (C 164 H 256 O 68 S 2 Na 2 – 3,422 g/mol), representing one of the largest and most complex secondary metabolites characterized. Dinoflagellates, are most well-known for the production of red tides which are frequently toxic, including okadaic acid and related dinophysistoxins, which are tumor promoters. The mode of action for these phycotoxins, is by specific inhibition of protein phosphatases, enzymes essential in regulation of many cellular processes. Hence, these compounds are being used for vital cell regulation studies. However, the availability of useful amounts of these compounds has restricted research. Chemical synthesis of some compounds such as okadaic acid has been investigated, but the complexity of the molecule resulted in many lengthy steps and achieved only a poor yield. The use of naturally occurring phytoplankton has been investigated as a potential source of these compounds, but it has been shown to be unreliable and impractical. The most practical option is large scale culture with down-stream processing urification which requires specialist facilities and expertise. This review, describes the biotechnological potential of these organisms and the challenges to achieve useful yields of high quality phycotoxins using Prorocentrum spp. as an ex le to produce okadaic acid.
Publisher: IOP Publishing
Date: 07-2019
DOI: 10.1088/1755-1315/298/1/012008
Abstract: Global Challenge Research Fund (GCRF) Blue Communities is a 4 year research and capacity building project for sustainable interactions with marine ecosystems for the benefit of the health, wellbeing, food security and livelihoods of coastal communities in East and South East Asia. Kepulauan Selayar (Selayar Islands), including Taka Bonerate as a Biosphere Reserve and part of the UNESCO’s Man and Biosphere (MAB) Network has been selected as a case study site for the GCRF Blue Communities project in Indonesia. A single case study approach with mixed methods are used to generate knowledge, identify knowledge gap, and triangulate findings. The ongoing research has collated up-to-date knowledge on: (1) current natural resources management strategy in place and what should be adopted in the future and (2) current and projected profile of energy demand-supply. In the next phases of delivery it will inform policy makers and implementers of the mechanisms to optimise sustainable livelihood strategies by: (1) accelerating positive contributions toward sustainable livelihood and (2) mitigating and preventing threats and pressures to sustainable livelihood. Finally it puts forwards strategic recommendations for decision making points which are evidenced-based and holistic, encompassing: (1) best practice policy for sustainable livelihood and (2) community empowerment and programme sustainability.
Publisher: Elsevier BV
Date: 03-2023
Publisher: MDPI AG
Date: 11-06-2021
DOI: 10.3390/SU13126655
Abstract: Tourism development has been promoted as an alternative livelihood to reduce the dependence of small island communities on declining marine resources. It is often central to emerging agendas around marine planning and the blue economy. However, relatively little is known about how communities perceive tourism development as an alternative and potentially sustainable livelihood in their area and its implications. This qualitative study tracks a governance system in transition and analyzes the factors perceived by stakeholders to be driving and hindering the adoption of tourism-based livelihoods on small islands in UNESCO’s Taka Bonerate Kepulauan Selayar Biosphere Reserve (Indonesia). The findings indicate that, despite a series of tourism-enhancing investments and initiatives and the positive attitudes of local communities towards it, tourism is not a direct route towards sustainability for small island communities. The benefits of tourism are perceived to be unequally distributed. The lack of education and skills limits participation in new job opportunities, and the incentives to continue destructive fishing inhibits livelihood transition to tourism. The article concludes that tourism cannot be assumed to generate simultaneous benefits for conservation and development without more equitable benefit sharing, the meeting of basic needs in communities, and addressing the drivers of unsustainable livelihoods.
Location: United Kingdom of Great Britain and Northern Ireland
Location: United Kingdom of Great Britain and Northern Ireland
No related grants have been discovered for Radisti Ayu Praptiwi.