scholarly journals How Filipino Fishers Use Traditional Knowledge in Identifying Species of Juvenile Mangrove Crabs for Grow-out Culture

2021 ◽  
pp. 119-128
Author(s):  
Hilarie Orario ◽  
Qiuting Cai ◽  
Janella Kristine Chua ◽  
Evanae Schon Magpayo ◽  
Aliexandra Heart Po ◽  
...  
Keyword(s):  
Native Species ◽  
Low Cost ◽  
The Philippines ◽  
Behavior Patterns ◽  
Traditional Practices ◽  
Group Discussions ◽  
Mangrove Crab ◽  
Late Instar ◽  
Mangrove Crabs ◽  
Identification Techniques

Mangrove crab growers in the Philippines still rely on wild-caught late instar to early juvenile mangrove crablets, as supplies from hatcheries are limited. Any batch of crablets caught from the wild is a mix of the three native species under the genus Scylla. Scylla species have different growth rates. Since grow-out culture depends heavily on species' growth, growers should be able to distinguish the species as early as the juvenile stage, which is taxonomically difficult. This study was done to consolidate low-cost traditional identification techniques for juvenile Scylla from fishers of the Philippines for future validation. Focused group discussions were done in fishing communities from Bataan, Pangasinan, and Cagayan on the island of Luzon. The study was continued through online surveys, as travel was restricted due to the Covid-19 pandemic. Results indicate that 70.58% of respondents identify the species of crabs by looking at their claws and 55.88% observe the color of the crabs. Almost half, or 41.17% of respondents, consider the width and size of the carapace. Unique methods in certain Philippine regions include observation of the behavior patterns, carapace texture, rate of weight gain, and seasonality. Validation of the traditional practices identified in this study would result in a reliable "at-a-glance" method of identifying juvenile Scylla in the Philippines, which would shorten the culture period, improve production gains, and manage local populations.

A revised dichotomous key for the mangrove crab genus Scylla De Haan, 1833 (Brachyura, Portunidae)

Crustaceana ◽  
2018 ◽  
Vol 91 (7) ◽  
pp. 847-865 ◽  
Author(s):  
Chona C. Vincecruz-Abeledo ◽  
Ma. Carmen A. Lagman
Keyword(s):  
Species Identification ◽  
Morphological Characters ◽  
The Philippines ◽  
Molecular Techniques ◽  
Diagnostic Features ◽  
Geometric Patterns ◽  
Dichotomous Key ◽  
Mangrove Crab ◽  
Mangrove Crabs ◽  
Morphological Species

Abstract Species identification in mangrove crabs of the genus Scylla De Haan, 1833 is problematic, due to the high intraspecific variation and the continuity of diagnostic features. To determine the hierarchy of characters that are most useful in differentiating Scylla species from the Philippines, 1,185 mangrove crabs were collected from seven sites across the Philippines. Morphological species identification was contrasted with morphometric and molecular techniques. The hierarchy of characters in the existing dichotomous key resulted in the misidentification of 245 samples. Errors stem from asymmetry in the features of the chelipeds and the continuity in the features of the frontal lobe spines. Considering mainly morphological characters, the most reliable traits were the geometric patterns in the swimming and walking legs. Nonetheless, 27 individuals with morphological ambiguities exhibited unique patterns in digested nuclear ITS-1 fragments, unreported in any known species of Scylla. A revised hierarchy of characters resulted in a 97.8% match with molecular species identification.

Big Data in the philippines: How do we actually use them?

2021 ◽  
pp. 1-30
Author(s):  
Lisa Grace S. Bersales ◽  
Josefina V. Almeda ◽  
Sabrina O. Romasoc ◽  
Marie Nadeen R. Martinez ◽  
Dannela Jann B. Galias
Keyword(s):  
Big Data ◽  
High Speed ◽  
The Philippines ◽  
Complex Data ◽  
Official Statistics ◽  
Group Discussions ◽  
The Public ◽  
The Government ◽  
The Many ◽  
Current Utilization

With the advancement of technology, digitalization, and the internet of things, large amounts of complex data are being produced daily. This vast quantity of various data produced at high speed is referred to as Big Data. The utilization of Big Data is being implemented with success in the private sector, yet the public sector seems to be falling behind despite the many potentials Big Data has already presented. In this regard, this paper explores ways in which the government can recognize the use of Big Data for official statistics. It begins by gathering and presenting Big Data-related initiatives and projects across the globe for various types and sources of Big Data implemented. Further, this paper discusses the opportunities, challenges, and risks associated with using Big Data, particularly in official statistics. This paper also aims to assess the current utilization of Big Data in the country through focus group discussions and key informant interviews. Based on desk review, discussions, and interviews, the paper then concludes with a proposed framework that provides ways in which Big Data may be utilized by the government to augment official statistics.

scholarly journals Phytoremediation Potential of Native Herbaceous Plant Species Growing on a Paradigmatic Brownfield Site

2021 ◽  
Vol 232 (7) ◽  
Author(s):  
N. Matanzas ◽  
E. Afif ◽  
T. E. Díaz ◽  
J. R. Gallego
Keyword(s):  
Plant Species ◽  
Contaminated Soils ◽  
Native Species ◽  
Low Cost ◽  
Plantago Lanceolata ◽  
Herbaceous Plant ◽  
Plant Interactions ◽  
Aerial Parts ◽  
Medicago Lupulina ◽  
Icp Ms

AbstractPhytomanagement techniques using native species allow the recovery of contaminated soils at low cost and circumvent the ecological risks associated with the use of non-native species. In this context, a paradigmatic brownfield megasite highly contaminated by As and Pb was sampled in order to analyze soil–plant interactions and identify plant species with phytoremediation potential. A survey was first carried out in a 20-ha area to obtain an inventory of species growing spontaneously throughout the site. We then performed another survey in the most polluted sub-area (1 ha) within the site. Pseudototal concentrations of contaminants in the soil, aerial parts of the plants, and roots were measured by ICP-MS. A detailed habitat classification was done, and a specific index of coverage was applied by means of a 1-year quadrat study in various sampling stations. Results converged in the selection of six herbaceous species (Dysphania botrys, Lotus corniculatus, Lotus hispidus, Plantago lanceolata, Trifolium repens, Medicago lupulina). All of these plants are fast-growing, thereby making them suitable for use in phytostabilization strategies. Furthermore, they are all easy to grow and propagate and are generally self-sustaining. All six plants showed accumulation factors below 1, thus revealing them as pseudomethallophytes and excluders. However, L. hispidus and M. lupulina showed translocation capacity and are considered worthy of further study.

Of stories that matter

2018 ◽  
Vol 27 (1) ◽  
pp. 87-101
Author(s):  
Juhn Chris Espia ◽  
Alma Maria Salvador
Keyword(s):  
Disaster Risk ◽  
The Philippines ◽  
Central Position ◽  
San Jose ◽  
Group Discussions ◽  
Management Planning ◽  
Content Type ◽  
Proactive Approach ◽  
Socially Constructed ◽  
Risk Discourse

Purpose The recent shift in the Philippine Government’s emphasis from response to a more proactive approach came with the recognition that different stakeholders play important roles in the governance of disaster risk. The purpose of this paper is to look beyond the question as to whether all stakeholders are involved in disaster risk management planning and examines the extent by which the narratives of risk of actors at the margins shape how risk is framed in municipal DRM planning in Antique, Philippines. Design/methodology/approach This paper is based on a field study carried out in San Jose de Buenavista, Antique Province, Philippines. Data were gathered through key informant interviews and focus group discussions as well as a review of archival records and documents. Findings The narratives of CSOs and communities, which revolve around livelihoods and community life are conspicuously absent from the plans whereas that of government actors occupy a central position in the risk discourse. The study highlights the power-saturated process of defining and addressing risk to disasters, where knowledge is intimately linked to power as some voices shape plans and policies, whereas, others are excluded because their knowledge is socially constructed as less reliable and therefore irrelevant. Originality/value There is a dearth of studies that examine disaster risk as social constructions in the context of planning in the Philippines and in other disaster-prone countries.

Understanding Factors Related to Prolonged Trial of Detained Defendants in the Philippines

2017 ◽  
Vol 62 (8) ◽  
pp. 2461-2487 ◽  
Author(s):  
Raymund E. Narag
Keyword(s):  
Focus Group ◽  
Qualitative Data ◽  
The Philippines ◽  
Cultural Dynamics ◽  
Focus Group Discussions ◽  
Group Discussions ◽  
Western Literature ◽  
Loosely Coupled ◽  
Official Data

Utilizing a combination of jail official data and qualitative data gathered through Focus Group Discussions and interviews with inmates, court actors, and jail officers, this article investigates the factors related to prolonged trial of detained defendants in the Philippines. Sensitizing concepts derived from Western literature are utilized to understand individual, court, and jail-level variations to prolonged detention. Results from official jail data show the magnitude and extent of the problem. The narrative data suggests the salience of organizational and cultural dynamics that lead to the delay of cases for detained defendants. Specifically, courts that are loosely coupled and subscribe to workgroup culture that condones leniency are more likely to be delayed. Implications to theory and policy are discussed.

scholarly journals Ethnomedicinal Knowledge of Kisan Community - A Case Study

2020 ◽  
pp. 16-23
Author(s):  
Manisha KC ◽  
Nanda Bahadur Singh
Keyword(s):  
Indigenous Knowledge ◽  
Plant Species ◽  
Common Cold ◽  
Animal Species ◽  
Traditional Practices ◽  
Medicinal Purpose ◽  
Group Discussions ◽  
Key Informants ◽  
Ethnomedicinal Knowledge

In the context of depleting indigenous knowledge and their values in the Kisan Community, they seem unaware of their culturally rich traditional practices of using animals and plants for medicinal purpose. It has been essential to document those knowledge of practices for future references. The paper tried to explore and document those knowledge and practices by the Kisan community of Mechinagar 9 and 11 of Jhapa, Nepal. For this purpose, the data were collected through interviews with key informants including conjurer (Dhami/Jhakri), elders of the society and also focal group discussions with the local people. Analysis of the data has shown that 29 animal species belonging to 24 families are used to treat 29 ailments and 57 plant species belonging to 37 families are used for treating 39 different ailments. The commonly treated ailments were common cold, cuts, wounds, diarrhoea, dysentery, etc.

scholarly journals The population and mortality characteristics of mangrove crab (Scylla serrata) in the mangrove ecosystem of Tarakan City, Indonesia

2020 ◽  
Vol 21 (8) ◽  
Author(s):  
AGUS INDARJO ◽  
Gazali Salim ◽  
MUFRIDA ZEIN ◽  
DODDY SEPTIAN ◽  
STEPHANIE BIJA
Keyword(s):  
Carapace Length ◽  
Total Mortality ◽  
Condition Index ◽  
Mangrove Ecosystem ◽  
Scylla Serrata ◽  
Primary Data ◽  
Allometric Growth ◽  
Male And Female ◽  
Mangrove Crab ◽  
Mangrove Crabs

Abstract. Indarjo A, Salim G, Zein M, Septian D, Bija S. 2020. The population and mortality characteristics of mangrove crab (Scylla serrata) in the mangrove ecosystem of Tarakan City, Indonesia. Biodiversitas 21: 3856-3866. The mangrove crab is an iconic species of Tarakan City and is often is used as a souvenir. However, the high demand for this species can cause its population to decline. This study aimed to characterize the mangrove crab (Scylla serrata) population in the mangrove ecosystem of Tarakan City, North Kalimantan, Indonesia. This study was designed using a quantitative descriptive method with a case study model. The samples of mangrove crabs were obtained from 6 different stations using a purposive sampling method. The mangrove crab specimens were caught using 35-50 units of crab traps known as the ambau brackets. The primary data included carapace length, carapace width, carapace thickness, sex, and the total weight of each mangrove crab specimen. The results showed that male mangrove crabs have positive allometric growth when the condition index was fat. However, female crabs exhibited negative allometric growth when the condition index was thin. The Von Bertalanffy growth model analysis showed that the maximum carapace length of male mangrove crab in the mangrove ecosystem of Tarakan City was approximately 11.1118 cm for 189 days, while the female length was 9.6474 cm for 80 days. The total mortality value of male and female crabs was 120.01% and 154.94%, the mortality due to fishing was 84.69% and 135.75%, and natural mortality was 35.32% and 19.2%, respectively. The estimated rate of exploitation of both male and female crabs was 70.57% and 87.61%, respectively. The exploitation of S. serrata in the mangrove ecosystem of Tarakan City was evident, hence, conservation efforts are urgently required.

scholarly journals Rural Muslim Empowerment Through the Development of Applicable Technology

2019 ◽  
Vol 3 ◽  
pp. 330-347
Author(s):  
Thofiqur Rohman
Keyword(s):  
Low Cost ◽  
Appropriate Technology ◽  
School Dropouts ◽  
Group Discussions ◽  
Community Culture ◽  
Community Environment ◽  
Muslim Communities ◽  
Simple Technology ◽  
General School

This paper focuses on the process of empowering rural Muslim communities by improving the quality of life through the development of appropriate technology to be renewable. Renewable technology is an effort to develop simple technology that is needed by the community, and the practice of using potential in the community environment, so that it can be updated at a low cost. The research setting is the Muslim community of Sokawera Village, Cilongok District, Banyumas Regency. The background of the problem is to find public poverty and general school dropouts, the abundance of manure waste, the lack of funds to buy fertilizers, and the imbalance between low economic capacity and the ownership of abundant potential in the form of community culture raising livestock. This type of research is qualitative research by conducting exploration through interviews, observation and forum group discussions. Data analysis is done by searching and compiling data systematically from the results of interviews, observation and forum group discussions. The findings of this study are in the form of a model of empowering rural Muslims through the development of appropriate technologies for renewable. The model is named after the House of Empowerment. Rumah Empowerment is a concept in carrying out the empowerment process from the beginning to the end. In this concept, there are five processes. The five processes must be carried out coherently so that the target of empowerment is maximally achieved and can be sustainable. The five processes referred to, namely; 1) Mapping the subject of empowerment, 2) Coordination, 3) Expansion of Empowerment, 4) Evaluation, 5) Improvement.

scholarly journals Pengaruh ekstrak minyak cumi pada umpan bubu terhadap hasil tangkapan kepiting bakau dan rajungan di Perairan Malise Kecamatan Tabukan Tengah

2016 ◽  
Vol 2 (3) ◽  
Author(s):  
Maichel Arvan Pananggung ◽  
Ivor L. Labaro ◽  
Emil Reppie
Keyword(s):  
Coastal Waters ◽  
Scylla Serrata ◽  
Fishing Gear ◽  
Swimming Crab ◽  
Portunus Pelagicus ◽  
Mangrove Crab ◽  
Gill Net ◽  
Oil Extract ◽  
Mangrove Crabs ◽  
By Catch

ABSTRACT Mangrove crab (Scylla serrata) and swimming crab (Portunus pelagicus) are economically important marine commodities produced from the coastal waters of Sangihe Islands Regency. But those marine commodity products are usually only caught accidentally with a bottom gill net. There has been a special trap fishing gear for that resources, but not known well by local fishermen. Addition of squid oil extraction baits could increase the fishing power of mangrove crab and swimming crab traps. This research aims to study the effect of squid oil extract on traps bait to catch mangrove crab and swimming crab; and identify the types of biota captured. This research was done in coastal waters of Malise village, Tabukan Tengah District of Sangihe Islands Regency for 2 weeks September 2015; based on experimental method. Six unit traps were operated ten trips where three units of them used scad mackerel bait that injected with squid oil extract, and tree other units just used scad mackerel bait without extract; and the capture data were analyzed using t test. The catch was 142 individuals (135 mangrove crabs and 7 swimming crab); where 86 crabs was caught by scad mackerel bait with squid oil extract, and 56 crabs caught with bait without squid oil extract. The analysis showed that the use of squid oil extracts on trap baits increased the catch. Keywords: mangrove crab, swimming crab,trap baits, squid oil extract, Sangihe   ABSTRAK[1] Kepiting bakau (Scylla serrata) dan rajungan (Portunus pelagicus) merupakan komoditi hasil laut ekonomis penting yang dihasilkan dari perairan pantai Kabupaten Kepulauan Sangihe. Tetapi komoditi hasil laut tersebut biasanya hanya tertangkap tanpa sengaja (by catch) dengan jaring insang dasar. Sebenarnya telah ada alat tangkap bubu khusus untuk kepiting bakau dan rajungan, tetapi belum dikenal oleh nelayan lokal. Pemberian ekstrak minyak cumi pada umpan, diduga dapat meningkatkan kemampuan tangkap dari bubu kepiting bakau dan rajungan. Penelitian ini bertujuan untuk mempelajari pengaruh ekstrak minyak cumi pada umpan bubu terhadap hasil tangkapan kepiting bakau dan rajungan, dan mengidentifikasi jenis-jenis biota yang tertangkap. Penelitian ini dilakukan di perairan Malise Kecamatan Tabukan Tengah, Kabupaten Kepulauan Sangihe; selama 2 minggu pada bulan September 2015; yang didasarkan pada metode eksperimental. Enam unit bubu dioperasikan selama sepuluh trip untuk mengumpulkan data; di mana tiga unit menggunakan umpan ikan layang yang disuntikan ekstrak minyak cumi, dan tiga unit lainnya hanya menggunakan umpan ikan laying tanpa ekstrak; dan data dianalisis dengan uji t. Tangkapan total berjumlah 142 ekor (135 ekor kepiting bakau dan 7 ekor rajungan); di mana 86 ekor tertangkap dengan umpan layang yang diberi ekstrak minyak cumi, dan 56 ekor tertangkap dengan umpan tanpa ekstrak. Hasil analisis menunjukkan bahwa penggunaan ekstrak minyak cumi pada umpan bubu, memberikan hasil tangkapan yang sangat berbeda dibandingkan dengan umpan tanpa ekstrak minyak cumi. Kata-kata kunci: kepiting bakau, rajungan, umpan bubu, ekstrak minyak cumi, Sangihe  

scholarly journals Air Asia: From Regional to Global

2021 ◽  
Vol 9 (1) ◽  
pp. 1-5
Author(s):  
Dr. Khaliq Ahmad Mohammad
Keyword(s):  
Low Cost ◽  
The Philippines ◽  
Operating Costs ◽  
Economic Downturn ◽  
Long Run ◽  
Low Cost Carrier ◽  
Strategic Options ◽  
Tourism And Hospitality Industry ◽  
Tourism And Hospitality

In February 2009, Tony Fernandez, the founder of AirAsia was not bothered by the company’s mass order of 175 new aircraft for its AirAsia-X long-haul services. He could not resist the concern over the aircraft deferment to Thailand and Indonesia in 2011 because of the relocation of the low-cost carrier terminal in Sepang before AirAsia was forced to move to KLIA2. Such a situation would surely increase its operating costs exponentially. He also knew he was facing an economic downturn and the high competition, particularly for his AirAsia-X business. Major rivals of AirAsia-X in the region were Singapore Tiger Airways, Cebu Pacific Air of the Philippines and a global competitor was EasyJet in Europe had just launched aggressive campaigns and promotions which would affect its long-haul business. He was certain that the company would achieve his dream to spread its wings all over the world. However, he realized that the company’s operating costs and competition with other airliners that joined the club of no-frills airlines based on a national and international level presently had escalated. He knew he had to act now. If you were Tony Fernandez, what would you do in this scenario was a question that needs an answer? This is an issue of strategic choice of divesting or integration as the strategic options are limited in the short as well as long run. The AirAsia case study has the main objective of sharing impact of the covid-19 pandemic devastating impact on the airliners. It is a significant study in terms of impact on economy, tourism and hospitality industry in general and Malaysia in particular.

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