Symposia & Conferences
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Item Emerging ICT applications for strengthening of fisheries information system; A Sri Lankan experience(Department of Zoology and Environmental Management, University of Kelaniya, Kelaniya, Sri Lanka., 2016) Wimalasena, H.D.; Dahanayaka, D.D.G.L.; Amaralal, K.H.M.L.At present, information and communication technologies (ICTs) are used across the fisheries and aquaculture sectors in Sri Lanka for resource assessment, capture or culture to processing and commercialization. Especially in fisheries sector, ICT is widely used in applications such as Global Positioning Systems (GPS) for navigation and location finding, mobile phones for trading, information exchange, and emergencies, Satellite Remote Sensing (RS) for fishery forecasting and culture site selection, and radio for communication with fishers. But usage of web-based information and networking resources of these sectors are still emerging in Sri Lanka. Efficient information sharing system among resource users and fishery managers are essential for the sustainable management of aquatic resources. To fulfill this requirement, National Aquatic Resources Research and Development Agency (NARA) had foreseen the setting up of a user friendly system and launched the ‘Fisheries Information Centre (FIC) on 07th May 2013, to provide timely and accurate information on fisheries related problems for all stakeholders. The aim of this paper is to discuss the present status of the FIC and its role on development of Sri Lankan fisheries sector with evolving ICT applications. At the initial phase, FIC provided mobile phone interface to connect with the centre for their information needs. It can facilitate dialogue among fisheries communities and with government planners, researchers, and technical experts in sharing information for improvement in the efficiency and profitability of the fisheries industry. Through this dialogue FIC is able to disseminate scientific and legislative information, professional experiences and good practices to the fisheries sector (fishing, aquaculture, fish processing and marketing). From the start, FIC was successfully engaged to solve more than 500 telephone queries, which were categorized under academic and research related services (37%); consumer and industry services (33%); fishermen welfare and disaster related services (8%); trade and investment related services (6%); general comments and communications (16%). Delivering extension services such as conducting workshops for fishers and fishery related stakeholders, policy makers and politicians is another goal of FIC. Further, fisheries related information such as weather conditions, natural disasters, market fish prices, fishery forecasting etc. is also disseminated through the FIC. As the internet is emerging as a tool with potential to contribute to the development of Fisheries in developing countries like Sri Lanka, FIC focused on Setting up of a Web Portal for efficient information sharing between local and foreign stakeholders in near future.Item Use of Kissel Server as a Platform for the Expansion of Research on the Water Quality of Asian Water Bodies(Department of Zoology, University of Kelaniya, Kelaniya, Sri Lanka, 2014-06) Dahanayaka, D.D.G.L.; Tonooka, H.; Wijeyaratne, M.J.S.; Minato, A.; Ozawa, S.Monitoring of all relevant aspects of water bodies is highly important for their sustainable use. To achieve this all research findings should be easy accessible and presenting those in a user friendly manner will be highly advantageous. Therefore, development of a database on the coastal water bodies of Sri Lanka on KISSEL server system was initiated, for the benefit of all interest groups including the general public. Presently it contains water quality data of lagoons and estuaries for over two decades. This was extended from a local scale to a regional scale. In this extension, algorithm improvement or tuning based on in-situ data sets was carried out for optimization. The aim was to expand the databases on water bodies using satellite analysis within selected Asian countries. It was initiated through KISSEL server system to benefit pollution monitoring and sustainable use of water bodies. Water bodies of Japan, Sri Lanka, Vietnam, Thailand, Indonesia and Philippines were selected considering their economic and ecological importance. In-situ research parallel to satellite overpass were conducted on the following water bodies. Local Universities and/or Research Institutes collaborated with the collection of field data and will involve in future continuous monitoring programs and KISSEL related activities.Item Eutrophication Trends in Bolgoda North Lake, Sri Lanka(Department of Zoology, University of Kelaniya, Kelaniya, Sri Lanka, 2014-06) Perera, B.D.C.; Wijeyaratne, M.J.S.; Dahanayaka, D.D.G.L.; Tonooka, H.; Minato, A.; Ozawa, S.Chlorophyll-a (Chl-a) concentration in the Bolgoda North Lake (06.400 – 06. 480 N; 079. 550 -079. 580 E), which is a shallow brackish water body situated in the western coastal region of Sri Lanka, was determined through correlating Advanced Space-borne Thermal Emission and Reflection Radiometer (ASTER) optical sensor data with in-situ data measured from April 2013 to October 2013 in 05 sampling sites. ASTER band ratio of B1/B2 which gave the highest correlation with in-situ Chl-a data was used to generate 15 m resolution Chl-a distribution maps. Chl-a distribution maps generated using ASTER data indicated that most areas of Bolgoda North Lake were eutrophic. Some regions of the Weras Ganga which flows into the Lake showed very high Chl-a concentrations during April indicating hypereutrophic conditions while in June, September and October these areas indicated eutrophic conditions. Observations on land use pattern revealed that industrial zones border these areas. High Chl-a concentrations were also observed in the areas bordered by the lands with low income houses from which household waste as well as sewage are discharged directly to the lake. Chl-a distribution maps developed for 2005, 2008, 2010 and 2011 revealed that eutrophication of the Bolgoda North Lake has gradually increased in the recent past. This may possibly be due to the increase in the industrial effluents as a result of industrial development in the area and also due to increased population of low income groups that live in some areas bordering the lake.