IRUOR Home
→
Scholarly Publications
→
Scholarly Publications of Academic Members
→
Faculty of Fisheries and Marine Sciences & Technology
→
Department of Limnology and Water Technology
→
Browsing Department of Limnology and Water Technology by Title

Browsing Department of Limnology and Water Technology by Title

Now showing items 1-20 of 41

Assessment of water quality and trophic state in Sooriyawewa reservoir in the Southern province of Sri Lanka

Wijewardene, L.; Asanthi, H. B.; Rajapaksha, S. W. (Sri Lanka Association of Fisheries and Aquatic Resources, 2017-03-01)

Trophic state of a reservoir is one of the important factors in limnological perspective in order to understand its healthiness. This study was focused to understand the dynamics of trophic state and water quality in ...
The benthic macro-invertebrate diversity in relation to water quality of a stream habitat at Dediyagala, Sri Lanka

Madhushankha, H.M.T.C.; Asanthi, H.B.; Maithreepala, R.A. (Sri Lanka Journals Online, 2014)

The streams collect sediment and other fine and particulate material from their watersheds and transport them downstream as fluvial material. Macro-benthos is the most important secondary producers in stream ecosystem ...
Biofilm extracellular enzyme activities in response to temperature: a latitudinal study

Freixa, A.; Catalan, N.; Gimenez-Grau, P.; Riis, T.; Romaní, A.; Tank, S.; Wijewardene, L.; Pastor, A. (International Society of Limnology, 2022-09-07)

The extracellular enzyme activities released by microbial biofilms are a primary mechanism for organic matter decomposition. Microbial activity is highly responsive to temperature increase, but this response could change ...
Coupled Transformation of Carbon Tetrachloride and Copper Ion by Nanocrystalline Ferric Oxides and Ferrous Ions

Doong, Ruey-an; Maithreepala, R.A.; Chang, Sue-min (Coupled Transformation of Carbon Tetrachloride and Copper Ion by Nanocrystalline Ferric Oxides and Ferrous Ions, 2005)

The transformation of carbon tetrachloride (CT) and copper ions by Fe(II) ions associated with nanocrystalline iron oxides minerals including hematite (α-Fe2O3) and ferrihydrite (Fe(OH)3) was investigated. Experiments ...
Dechlorination of Chlorinated Methanes by Ferrous Ion Associated with Various Iron Oxide Minerals

Maithreepala, R.A.; Doong, Ruey-an (Journal of Environmental Engineering and Management, 2006)

The dechlorination of carbon tetrachloride (CT) by Fe(II) ion in the suspensions of crystalline iron oxide minerals including goethite (α-FeOOH), hematite (α-Fe2O3), magnetite (Fe3O4), and amorphous ferrihydrite (Fe(OH)3) ...
Degradation of Chlorinated Hydrocarbons by Fe(II) Species: Influence of Cu ions on the dichlorination reaction and modification of mineral surfaces

Maithreepala, R.A. (LAP LAMBERT Academic Publishing, 2013)

Redox processes at the mineral-water interfaces under sub-surface conditions play a vital role in deciding the fate of reducible contaminants in groundwater. Oxidation of surfae-bound and/or structural Fe(II) species ...
Distribution and abundance of aquatic macrophytes in a forested stream: Case study in Kottawa Forest Reserve

Samudrika Sandaruwani, T.D.; Atapaththu, K.S.S.; Asanthi, H.B. (University of Ruhuna, Matara, Sri Lanka, 2018-05-01)

Forest ecosystems have been studied for terrestrial components and other faunal assemblages while information on aquatic plants on this regard is scared. Thus, present preliminary study was designed to study the ...
Diversity, Length-Weight Relations, and Condition Factor of Sea Cucumbers in Three Coastal Areas Along the Southern Coast of Sri Lanka

Gamage, L.K.T.; Thushari, G.G.N.; Atapaththu, K.S.S.; Kumara, H.K.R.S.; Senevirathna, J.D.M (Central Fisheries Research Institute (SUMAE) Trabzon, Turkey in cooperation with Japan International Cooperation Agency (JICA), Japan, 2021-08-11)

Economically and ecologically important ecosystems that consist of diverse finfish and shellfish resources are found along the southern coast of Sri Lanka. Thus, the current study intends to assess the species diversity, ...
Drawbacks of mangrove rehabilitation schemes: Lessons learned from the large-scale mangrove plantations

Barnuevo, A.; Asaeda, T.; Sanjaya, K.; Kanesaka, Y.; Fortes, M. (Elsevier, 2017-02-12)

Mangrove rehabilitation programs received much attention in the past decades as a response to widespread global degradation. While the documented successes and failures of mangrove rehabilitation accomplishments were varied, ...
Effect of biogenic iron species and copper ions on the reduction of carbon tetrachloride under iron-reducing conditions

Maithreepala, R.A.; Doong, Ruey-an (Chemosphere, 2008)

In this study, the cell-mediated and abiotic reduction of carbon tetrachloride (CCl4) by biogenic iron species produced from the reductive dissolution of ferrihydrite in the presence of Geobacter sulfurreducens and copper ...
Effect of pH and Light Intensity on the Growth of Dunaliella Salina

Dilshan, W.L.T.; Asanthi, H.B.; Maithreepala, R.A.; Atapaththu, K.S.S.; Costa, A.M.K.C.J.; Suranga, D.K.A.I. (University of Sri Jayawardanepura, Gangodawila, Nugegoda, Sri Lanka., 2023-01-28)

Dunaliella salina is a unicellular halophilic green alga dominantly found in salt lakes, and high saline ponds in slatterns all over the world. A rigid cell wall is absent in D. salina while the cells are covered by ...
Effects of the herbicides metazachlor and flufenacet on phytoplankton communities–A microcosm assay

Wijewardene, L.; Wu, N.; Hörmann, G.; Messyasz, B.; Riis, T.; Hölzel, C.; Ulrich, U.; Fohrer, N. (Elsevier, 2021-12-25)

Agrochemicals are the main pollutants in freshwater ecosystems. Metazachlor and flufenacet are two common herbicides applied in fall (i.e., August–October) to agricultural fields in Northern Germany. High concentrations ...
Effects of the herbicides metazachlor and flufenacet on phytoplankton communities–A microcosm assay

Wijewardene, L.; Wu, N.; Hörmann, G.; Messyasz, B.; Riis, T.; Hölzel, C.; Ulrich, U.; Fohrer, N. (Elsevier, 2021-12-25)

Agrochemicals are the main pollutants in freshwater ecosystems. Metazachlor and flufenacet are two common herbicides applied in fall (i.e., August–October) to agricultural fields in Northern Germany. High concentrations of ...
Effects of water turbulence on plant, sediment and water quality in reed (Phragmites australis) community.

Atapaththu, K.S.S; Asaeda, T.; Yamamuro, M.; Kamiya, H. (De Gruyter Open Ltd., 2017-03-21)

Even though the interaction between water movements and aquatic plant is crucial for the aquatic eco system management, the importance of water turbulence in this regard is not well documented. To add to our knowledge ...
Effects of water turbulence on variations in cell ultrastructure and metabolism of amino acids in the submersed macrophyte, Elodea nuttallii (Planch.) H. St. John

Atapaththu, K.S.S.; Miyagi, A.; Atsuzawa, K.; Kaneko, Y.; Kawai-Yamada, M.; Asaeda, T. (Willey, 2015-05-06)

The interactions between macrophytes and water movement are not yet fully understood, and the causes responsible for the metabolic and ultrastructural variations in plant cells as a consequence of turbulence are largely ...
Egeria densa Allelopathy on Microcystis aeruginosa Under Different Light Intensities and Preliminary Insight into Inter-Parameter Relationships

Senavirathna, M.D.H.J.; Muhetaer., G.; Atapaththu, K.S.S.; Takashi, Fujino (Springer Netherlands, 2021-03-30)

Egeria densa release allelochemicals harmful to other species, including cyanobacteria. Under natural conditions, E. densa and Microcystis aeruginosa can be found in various aquatic systems with different light levels. The ...
Enhanced Dechlorination of Chlorinated Methanes and Ethenes by Chloride Green Rust in the Presence of Copper(II)

Maithreepala, R. A.; Doong, Ruey-an (ACS Publication, 2005-04-26)

The enhanced removal of carbon tetrachloride (CCl4), tetrachloroethene (C2Cl4), and trichloroethene (C2HCl3) by chloride green rust (GR(Cl)) in the presence of copper ions was investigated. X-ray powder diffraction (XRPD) ...
Enhanced remediation of carbon tetrachloride by Fe(II)-Fe(III) systems in the presence of copper ions

Maithreepala, R.A.; Doong, R.-A. (PubMed, 2004)

The effect of Cu(II) ion on the dechlorination of carbon tetrachloride (CT) by Fe(II) associated with various iron oxides was investigated. Iron oxides including goethite, hematite, ferrihydrite and magnetite were selected ...
Epiphytic biofilms in freshwater and interactions with macrophytes: Current understanding and future directions

Wijewardene, L.; Wu, N.; Fohrer, N.; Riis, T. (Elsevier, 2022-01-01)

Epiphytic biofilm is an important component in freshwater ecosystems and is one of the main primary producers in shallow freshwater ecosystems. The epiphytic biofilm is comprised of an autotrophic community made up of ...
Epiphyton in Agricultural Streams: Structural Control and Comparison to Epilithon

Wijewardene, L.; Wu, N.; Giménez-Grau, P.; Holmboe, C.; Fohrer, N.; Baattrup-Pedersen, A.; Riis, T. (Water, MDPI, 2021-12-04)

Stream biofilms play an important role in the structure, functioning, and integrity of agricultural streams. In many lowland streams, macrophyte vegetation is abundant and functions as an important substrate for biofilm ...

Browsing Department of Limnology and Water Technology by Title

Browsing Department of Limnology and Water Technology by Title

Search DSpace

Browse

All of DSpace

This Collection

My Account