Browsing by Author "Dahanayaka, D.D.G.L."

Assemblages of macro-invertebrates in the Negombo estuarine ecosystem in relation to the locations of drainage outlets

Dahanayaka, D.D.G.L.; Jayamanne, S.C.; Wijeyaratne, M.J.S. (University of Kelaniya, 2006)

Assessing the potential of satellite and ground spectral data for Chlorophyll-a monitoring in Lake Kasumigaura, Japan

Dahanayaka, D.D.G.L.; Tonooka, H.; Wijeyaratne, M.J.S.; Minato, A.; Ozawa, S. (IEEE, 2014)

The suitability of a handheld spectrometer and ASTER satellite data for monitoring Chlorophyll-a (Chl-a) in Lake Kasumigaura, Japan was tested in July 2010 to December 2013. ASTER based Chl-a retrieval algorithms were ...

Assessment of invasion of Najas marina, Linnaeus 1753 in Madu Ganga estuary, Sri Lanka using ASTER data of Terra satellite

Silva, T.M.S.D.G.; Dahanayaka, D.D.G.L.; Wijeyaratne, M.J.S. (Institute of Biology, Sri Lanka, 2015)

Benthic Invertebrates of a Tropical Estuary in the Western Coast of Sri Lanka

Dahanayaka, D.D.G.L.; Jayamanne, S.C.; Wijeyaratne, M.J.S. (2008)

Change detection in the channel segment of Negombo Estuary, Sri Lanka using time series satellite data and its possible impacts on estuarine productivity

Dahanayaka, D.D.G.L.; Tonooka, H.; Wijeyaratne, M.J.S.; Minato, A.; Ozawa, S. (The Asian Fisheries Society, 2011)

CHLOROPHYLL-A MONITORING IN SRI LANKAN ESTUARIES USING ALOS/ANVIR-2 DATA

Dahanayaka, D.D.G.L.; Tonooka, H.; Wijeyaratne, M.J.S.; Minato, A.; Ozawa, S. (International Geo Science and Remote Sensing symposium, 2012)

Coastal water body database to monitor the water quality and land use changes from remote sensing data

Dahanayaka, D.D.G.L.; Tonooka, H.; Wijeyaratne, M.J.S.; Minato, A.; Ozawa, S. (Remote Sensing Society of Japan (RSSJ), 2012)

Comparison of three chlorophyll-a estimation approaches using ASTER data acquired over Sri Lankan coastal water bodies

Dahanayaka, D.D.G.L.; Tonooka, H.; Wijeyaratne, M.J.S.; Minato, A.; Ozawa, S. (Malaysian Journal of Remote Sensing & GIS (MJRS&GIS), 2015)

In the present study, we compare the following Chlorophyll–a (Chl-a) estimation algorithms using ASTER data acquired over Sri Lankan coastal water bodies: (1) the simple band-ratio algorithm with simple atmospheric correction ...

Development of coastal water body database on KISSEL server

Dahanayaka, D.D.G.L.; Tonooka, H.; Wijeyaratne, M.J.S.; Minato, A.; Ozawa, S. (IEEE, 2012)

Monitoring of coastal water bodies in all the relevant aspects was highly important for the sustainable use of those. To achieve this all the research findings should be easy access and presenting those in a user friendly ...

Diversity of macrobenthic community in the Negombo estuary, Sri Lanka with special reference to environment conditions

Dahanayaka, D.D.G.L.; Wijeyaratne, M.J.S. (Sri Lanka Association form Fisheries and Aquatic Resources, 2006)

Emerging ICT applications for strengthening of fisheries information system; A Sri Lankan experience

Wimalasena, H.D.; Dahanayaka, D.D.G.L.; Amaralal, K.H.M.L. (Department of Zoology and Environmental Management, University of Kelaniya, Kelaniya, Sri Lanka., 2016)

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 ...

Eutrophication Trends in Bolgoda North Lake, Sri Lanka

Perera, B.D.C.; Wijeyaratne, M.J.S.; Dahanayaka, D.D.G.L.; Tonooka, H.; Minato, A.; Ozawa, S. (Department of Zoology, University of Kelaniya, Kelaniya, Sri Lanka, 2014-06)

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 ...

Evaluation of Chlorophyll retrieval algorithm using an intermittently closed tidal estuary: The Chilaw lagoon in the west coast of Sri Lanka

Dahanayaka, D.D.G.L.; Tonooka, H.; Wijeyaratne, M.J.S.; Minato, A.; Ozawa, S. (Remote Sensing Society of Japan (RSSJ), 2011)

Feasibility Study for the Estimation of the Chlrophyll-a Using ASTER Data in an Eutrophic Lake, Sri Lanka

Dahanayaka, D.D.G.L.; Tonooka, H.; Wijeyaratne, M.J.S.; Minato, A.; Ozawa, S. (Japan Geoscience Union, Japan., 2014)

The objective of this study is to evaluate the performance of the previously proposed band ratio approach in estimating Chl-a in Bolgoda Lake, Sri Lanka as a representative example of Case II waters. Lake is located at ...

In-vitro and in-vivo Seed Germination Percentage of Typha angustifolia

Madushani, K.P.K.; Amarasinghe, M.D.; Ratnayake, R.M.C.S.; Dahanayaka, D.D.G.L. (International Postgraduate Research Conference 2019, Faculty of Graduate Studies, University of Kelaniya, Sri Lanka, 2019)

Typha is a cosmopolitan genus and T. angustifolia is considered an alien invasive plant species in Sri Lanka. Extensive distribution of T.angustifolia is observed in Bundala wetland complex during the recent past. Seed ...

Integration of multisource data for chlorophyll-a monitoring in Negombo estuary, Sri Lanka

Dahanayaka, D.D.G.L.; Tonooka, H.; Wijeyaratne, M.J.S.; Minato, A.; Ozawa, S. (IEEE, 2011)

In order to estimate chlorophyll-a concentration (Chl-a) for tropical coastal estuarine environments using satellite optical sensor, observations were conducted from 1987 to 2009 in Negombo estuary, Sri Lanka, with support ...

Macrobenthic Community Structure in Relation to Land Based Pollution - Case Study in a Tropical Estuary in the West Coast of Sri Lanka

Wijeyaratne, M.J.S.; Dahanayaka, D.D.G.L.; Jayamanne, S.C. (Ibaraki University, Hitachi, Japan, 2009)

Macrozoobenthic community structure in the channel segment, Negombo estuary, Western coast of Sri Lanka

Dahanayaka, D.D.G.L.; Jayamanne, S.C. (National Aquatic Resources Research and Development Agency, 2006)

Ctrannesl r:gmenot f the Negomboe stuary (7o6'- 7ol2'N, 79o49'- 79o53'E) is very importantf or the continuation of estuarine functrons through exchange of water between sea and the estuary, but are subjected to changes ...

Monitoring eutrophication trends in Bolgoda North Lake, Sri Lanka by Satellite Remote Sensing

Dahanayaka, D.D.G.L.; Perera, B.D.C.; Wijeyaratne, M.J.S.; Tonooka, H. (Central Fisheries Research Institute (CFRI) Trabzon, Turkey in cooperation with Japan International Cooperation Agency (JICA), Japan, 2016)

This study was aimed to determine the present level and past trends of eutrophication of the Bolgoda North lake, Sri Lanka using in situ Chlorophyll-a (Chl-a) measurements and remote sensing data obtained from Advanced ...

Monitoring land use changes and their impacts on the productivity of Negambo Estuary, Sri Lanka using time series satellite data

Dahanayaka, D.D.G.L.; Tonooka, H.; Wijeyaratne, M.J.S.; Minato, A.; Ozawa, S. (Asian Fisheries Society, 2012)

Browsing by Author "Dahanayaka, D.D.G.L."

Browsing by Author "Dahanayaka, D.D.G.L."

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