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Stephen B. Alayon

Bio: Stephen B. Alayon is an academic researcher from Southeast Asian Fisheries Development Center. The author has contributed to research in topics: Typhoon & Information system. The author has an hindex of 3, co-authored 8 publications receiving 31 citations.

Papers
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Journal ArticleDOI
TL;DR: Using an eight-part survey instrument, the authors documents the impact of Typhoon Haiyan on library personnel in a disaster management plan, which can guide library personnel on what to do in a critical time.
Abstract: A disaster management plan is essential because it can guide library personnel on what to do in a critical time. Using an eight-part survey instrument, this paper documents the impact of Typhoon Ha...

12 citations

Book
01 Jan 2005
TL;DR: In this paper, the authors describe the overview of shrimp culture industry and the historical production of Penaeus monodon, P.merguiensis and P.vannamei.
Abstract: This paper describes the overview of shrimp culture industry and the historical production of Penaeus monodon, P.merguiensis and the P.vannamei. The production of shrimp reduced from 115 metric tonnes in 2002 to 46 metric tonnes in 2004. Imported shrimps to Singapore in year 2003 reached 21,157 metric tonnes and valued at $129.57 millions. Domestic market alone required 16,359 metric tonnes and valued at $106.5 millions. Exported shrimps which maintain at 4,913 metric tonnes are mainly the products from the shrimp processing industry and all the raw materials were imported from other countries. Shrimp culture in Singapore suffered significant losses in the 90s due to the Yellowhead Virus (YHV) and the White Spot Syndrome Virus (WSSV) and the reduction of production was also due to urbanisation. Under the Wholesome Meat and Fish Act, the existing laws and regulations are to ensure wholesome food safety. Sampling and testing of all type of fish and seafood products for preservatives as well as contaminants such as heavy metals and drug residues are carried out regularly. All imports of fish products shall comply with prevailing regulations laid down by the Agri-Food & Veterinary Authority of Singapore (AVA). Culture of P.vannamei commenced in 2002 and majority of the fry were purchased from Taiwan. The grow-out culture areas calculated at about 3 hectares and only 8 metric tonnes of live P.vannamei were produced. The labour and employment generated in shrimp culture are limited by less than 10 persons. R&D activities on P.vannamei and other exotic shrimps are not well established, only the monitoring of shrimp production on coastal areas and fishing catch for occurrence of exotic species have been investigated. The field survey of Penaeus vannamei culture that was conducted on two shrimp farms (Round concrete pond system and rectangular concrete pond system) showed the stocking biomass at 185 pcs/m3 and 120 pcs/m3, respectively. At the end of the 2-month culture period, the mean body weight of the shrimps reached 10g with the round pond with 60% survival rate and the rectangular pond with 72% survival rate. The biomass of the round pond was at 2.6 kg/m3 while the rectangular pond was 1.2 kg/m3. The results from both systems indicate the potential of P.vannamei culture in this region.

6 citations

Journal ArticleDOI
TL;DR: The experiences of SEAFDEC/AQD library staff in digitizing institutional publications and developing an institutional repository (IR) are presented and initial impact based on indicators in webometrics ranking web of world repositories and research centers was presented.
Abstract: Purpose – This paper aims to present the experiences of SEAFDEC/AQD library staff in digitizing institutional publications and developing an institutional repository (IR). Design/methodology/approach – SEAFDEC/AQD IR or SAIR provides a reliable means for its researchers to store, preserve, share their research outputs, enable easy access to and increase the visibility of its scientific publications. The repository uses DSpace customized with some add-ons. Details on the digitization hardware and software, layout, delivery format, and persistent identifier used are provided. Findings – As of March 2012, the repository contains 771 items with 541 downloadable PDFs. SAIR had 88,287 item views, 69,249 PDF downloads and 271,978 searches. SAIR is registered to and indexed by OpenDOAR, ROAR, Google Scholar and WorldCat. It is harvested by AVANO Ifremer, BASE, Sciencegate.ch and OAIster. Initial impact based on indicators in webometrics ranking web of world repositories and research centers was presented. Relucta...

5 citations

Journal Article
TL;DR: A digitization project at the Rizal Library of the Ateneo de Manila University is described, to digitize its newspapers and special materials, specifically photographs, based on firsthand experience of the first author who at the time was the director of the library.
Abstract: INTRODUCTIONThis paper provides an overview and describes digitization projects and preservation initiatives in selected academic and research libraries in the Philippines. Particularly, it describes a digitization project at the Rizal Library of the Ateneo de Manila University, to digitize its newspapers and special materials, specifically photographs. The digitization project is a case study based on firsthand experience of the first author who at the time was the director of the library. The survey of other digitization initiatives is based on reports and publications, and websites gleaned from the Internet.THE RIZAL LIBRARY EXPERIENCEDigitizing NewspapersThe digitization project was conceived in 2001 upon the request of users of the product Newspapers on Microfilm. The users were having problems maintaining the quality of the microfilms because of the expense of storing them in a room with 24 hour air-conditioning. Many of the users found that their microfilms could no longer be used after some time because they were stored in rooms where the temperature and humidity were not controlled. In the Philippines, the room temperature varies from 25 to 40 degrees Celsius, depending on the season and the location of the library. Relative humidities were also in the high 70s or 80s. There was also the high cost of microfilm readers and printers. The cost of printing microfilm images was also high compared to photocopying. They suggested digitizing the newspapers since all libraries in the Philippines have computers with DVD drives. The DVD was the preferred format because not all libraries are connected to the Internet.There were other objectives in digitizing newspapers and photographs. One was that the handling of microfilms was unwieldy compared with the DVD. There was always a need to assist the users in loading the film and in printing the images. A second reason was ease of access. Information in digital format can be indexed and accessed randomly while those on microfilms were accessed sequentially. A third reason was the ease in saving the information to thumbdrives or sending it to one's email address. A fourth reason was the ease of duplication should the disk be damaged due to heavy use.The Ateneo de Manila University has been microfilming newspapers since the 1980s to preserve and share its content with users all over the country (David, 2002). In a country such as the Philippines however, temperature and humidity, the natural enemies of microfilm, are difficult to control. Hence when the requests to digitize came in, the Rizal Library in cooperation with the Philippine Library Materials Project, the agency handling the distribution of the microfilms, conducted a survey with current microfilm users and potential DVD users on their preference in acquiring newspapers for research purposes. All respondents preferred to acquire newspapers in digital format.In 2002, a team was formed to study equipment costs, administrative costs, and costs of the creation of digital objects from print, conversion to microfilm and vice versa, and what and where to acquire the equipment needed. After a thorough study of the above factors and conducting a feasibility and market study, a pilot study using four newspapers was done. Digital objects were created and stored in hard disks and DVDs. The first batches of the DVDs were sent out to users for evaluation and comment. The DVDs were also subjected to testing by users on-site. The results were collated and used to improve the product which included an index for fast retrieval. After a year, another survey was conducted to determine user satisfaction and other problems met by the users of the product. The survey revealed that the users were very satisfied with the product. The production of newspapers on DVD is now a regular function of the Rizal Library photoduplication section (Figure 1). The DVD is still the medium used to this day as not all libraries in the Philippines have access to the Internet. …

3 citations


Cited by
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Journal ArticleDOI
TL;DR: This paper argued that the current dominant governance discourse tying mangroves to blue carbon signifies a departure from catering to coastal people's interests and rights in mangrove, and pointed out that the present blue carbon framing, which harbours technocratic and financialized ideals of sustainability, poses a fundamental disadvantage to local users.

25 citations

Journal ArticleDOI
TL;DR: In this paper, the characteristics of seawall construction in China and summarize the environmental damage and some broadscale impacts caused by this type of infrastructure expansion on the endangered Yellow Sea tidal flats ecosystem.
Abstract: Coastal armouring and the reclamation of intertidal areas through the use of seawalls and other artificial structures has been practiced for thousands of years, but its recent expansion in China and elsewhere in Asia has been unprecedented in its rate and intensity. One result has been the recent loss of nearly two-thirds of tidal flats in the Yellow Sea, a globally unique ecosystem of high ecological value. The severe effects on biodiversity of the recent large-scale coastal land claim activities in China are well documented, yet some recent studies have emphasized the ecological opportunities provided by such artificial coastal infrastructure in China, in some cases suggesting that the ecological impacts of coastal infrastructure should be reconsidered due to benefits to some rocky shore species in a changing climate. This is cause for concern because, while studying the “new ecology” arising from coastal modification is useful, broad conclusions around the ecological role or conservation gains from seawall construction without adequate contextualization underplays the ecological consequences of large-scale coastal land claim, and could potentially undermine efforts to achieve biodiversity conservation. Here, we clarify the characteristics of seawall construction in China and summarize the environmental damage and some broadscale impacts caused by this type of infrastructure expansion on the endangered Yellow Sea tidal flats ecosystem. We also highlight the urgent need for all coastal development plans to consider how coastal wetlands and ecosystem functionality can be maximally retained within the development precinct.

24 citations

Journal ArticleDOI
TL;DR: In this article, the authors compared the use of library resources (including interlibrary loan, website and discovery tool pageviews, database use, patron interactions, etc.) at three university libraries before and after the COVID-19 pandemic.
Abstract: The COVID-19 pandemic has greatly impacted higher education, including academic libraries. This paper compares the use of library resources (including interlibrary loan, website and discovery tool pageviews, database use, patron interactions, etc.) at three university libraries before and after the pandemic. The latter part of the 2019 and 2020 spring semesters are the time frames of focus, although two control time frames from earlier in those semesters are used to determine how the semesters differed when the coronavirus was not a factor. The institutions experienced similar patterns of use across many metrics..

22 citations

Journal ArticleDOI
TL;DR: This review article aims to provide an overview of its current status and future direction, discusses questions that need focused research to address them, and summarizes areas where genetics and genomics knowledge can make a positive difference to shrimp culture sustainability.
Abstract: At present, research and progress in shrimp genomics and genetics show significant developments. Shrimp genetics and genomics also show immense potential for an increased production in a way that meets shrimp culture progress goals for the third millennium. This review article aims to provide an overview of its current status and future direction, discusses questions that need focused research to address them, and summarizes areas where genetics and genomics knowledge can make a positive difference to shrimp culture sustainability. Sustainable progress of penaeid shrimps will depend upon feasible solutions for environmental, research, economic, consumer problems, proper development, and planning policy enforcement. It is recommended that increased funding for biotechnology research and progress be directed to expand worldwide commercial shrimp culture and address environmental and public health issues. For any researcher or shrimp company member who has attempted to or whom would like to thoroughly search the literature to gain a complete understanding of the current state of shrimp genetics and genomics, this publication will be an invaluable source of reference materials, some of which is reported here for the first time.

22 citations