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Recent submissions

International Research Symposium on Pure and Applied Sciences (IRSPAS): Recent submissions

Now showing items 601-612 of 612

Influence of humidity and temperature variation of natural breeding sites on abundance of Leishmaniasis vector Phlebotomus argentipes population in Anuradhapura District

Nayakarathna, N.M.N.G.; Ganehiarachchi, G.A.S.M.; Rajapakse, R.P.V.J.; Jayanetti, S.R. (Faculty of Science, University of Kelaniya, Sri Lanka, 2016)

Cutaneous leishmaniasis (CL) is an endemic public health problem in Sri Lanka. Leishmania donovani is the suspected causative agent of the disease and this parasite is transmitted by a dipteran fly species; Phlebotomus ...
Severity of white spot virus infection and WSV resistance in brood stocks of Penaeus monodon – identified by DNA markers

Kumara, K.R.P.S.; Hettiarachchi, M. (Faculty of Science, University of Kelaniya, Sri Lanka, 2016)

Huge economic losses that has been occurring in global and national cultured shrimp industry due to white spot disease (WSD) could be controlled if specific pathogen free (“SPF”) and specific pathogen resistant (“SPR”) ...
Assessing potential biological hazards associated with Kelani River water using Nile tilapia (Oreochromis niloticus) as an aquatic model species

Ruvinda, K.M.S.; Pathiratne, A. (Faculty of Science, University of Kelaniya, Sri Lanka, 2016)

Kelani River receives complex mixtures of pollutants from diverse sources which include waste from industries, agriculture, domestic and municipal sources. However, scientifically based evidences on biological impacts ...
Gape size of wild guppy (Poecilia reticulata): Does it matter in mosquito larval control?

Nayakarathna, N.M.N.G.; Weerakoon, S.N.; Ganehiarachchi, G.A.S.M. (Faculty of Science, University of Kelaniya, Sri Lanka, 2016)

Larvivorous fish is very important tool in controlling disease transmitting vector mosquitoes in many parts of the world. However, there is a lacuna of knowledge about the vector control potency in relation to the gape ...
Effects of kerosene and citronella oil on the worker ants of Tetraponera rufonigra Jerdon (Formicidae, Pseudomyrmecinae), a medically important ant species, in tropical Asia

Dias, R.K.S.; Fernando, K.S.S.D. (Faculty of Science, University of Kelaniya, Sri Lanka, 2016)

Serious medical conditions due to sudden outbreaks of Tetraponera rufonigra and increase of its stings in urban localities were reported recently in Sri Lanka. Control methods appropriate for suppressing T. rufonigra ...
In-vitro anti-cancer and cytotoxic properties of aqueous seaweed extracts on BHK and HeLa cell lines

Ranahewa, T.H.; Premarathna, A.D.; Jayasooriya, L.J.P.A.P.; Wijesundara, R.R.M.K.K.; Rajapakse, R.P.V.J. (Faculty of Science, University of Kelaniya, Sri Lanka, 2016)

Cancer is a major health problem all over the world. Seaweeds and its active compounds have shown their potent cytotoxicity against cancer cells opening new sights for the production of new therapeutics. This study was ...
Screening of selected rice varieties for Meloidogyne graminicola infestation and potential of Trichoderma viride to control its infestation

Hemachandra, K.H.D.J.K.; Amarasinghe, L.D. (Faculty of Science, University of Kelaniya, Sri Lanka, 2016)

Meloidogyne graminicola is an obligatory endo-parasitic nematode species which becomes a threat to paddy cultivation in several regions in Sri Lanka. Other than using the highly toxic nematicides, it is necessary to find ...
Study on effect of microfauna and some abiotic parameters for the prevalence of mosquito larvae inhabiting marshlands

Menike, P.M.I.D.; Amarasinghe, L.D. (Faculty of Science, University of Kelaniya, Sri Lanka, 2016)

This study was carried out in selected marshlands of Kelaniya in Sri Lanka to determine the prevalence of various mosquito species larvae and their association with biotic and abiotic parameters of the habitat. Larval ...
Arboreal ant assemblages (Formicidae) and importance of Oecophylla smaragdina (Fabricius) occurrence in a wet zone cashew field in Sri Lanka

Dias, R.K.S.; Perera, A.P.S. (Faculty of Science, University of Kelaniya, Sri Lanka, 2016)

Many ant species (Hymenoptera, Formicidae) have the potential to control herbivore abundance, reducing the plant damage while increasing plant growth, reproduction and yield in agro-ecosystems. Ant assemblages on six ...
Impact of irrigation on reservoir fisheries: Antagonistic or supportive?

Nadarajah, S.; Amarasinghe, U.S.; Wijenayake, W.M.H.K. (Faculty of Science, University of Kelaniya, Sri Lanka, 2016)

Although reservoirs represent lacustrine ecosystems, they are drastically different from natural lakes for the main reason of prominence of anthropogenic perturbations, which affect ecosystem functioning. Many reservoirs ...
Indicating the levels of eutrophication of Diyawanna Lake wetland in Sri Lanka using phytoplankton abundance

Dilini, R.M.A.; Wijeyaratne, M.J.S. (Faculty of Science, University of Kelaniya, Sri Lanka, 2016)

Diyawanna Lake is an urban wetland located in Sri Jayewardenepura Kotte. Most areas of this wetland have been rehabilitated recently by digging, restoration of banks and removing aquatic vegetation to increase its water ...
Trophic ecology and resource partitioning of fish assemblages in brush-parks of Negombo estuary, Sri Lanka

Gammanpila, M.; Amarasinghe, U.S.; Wijeyaratne, M.J.S. (Faculty of Science, University of Kelaniya, Sri Lanka, 2016)

three major brush park fishing areas (Munnakkaraya, Katunayake and Dungalpitiya) in Negombo estuary, Sri Lanka were investigated during April 2014 - April 2016 to classify diet composition, evaluate trophic guilds ...

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