Evolution of nuchal glands, unusual defensive organs of Asian natricine snakes (Serpentes: Colubridae), inferred from a molecular phylogeny

Author (SJP): Prof. Dharshani Mahaulpatha
Journal: Ecology and Evolution

A large body of evidence indicates that evolutionary innovations of novel organs have facilitated the subsequent diversification of species. Investigation of the evolutionary history of such organs should provide important clues for understanding the basis for species diversification.

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ecology-and-evolution

Optimising a solvent system for lipid extraction from cyanobacterium Microcystis spp.: future perspective for biodiesel production

Author: D.A.T. Madusanka and Pathmalal M Manage
Journal: Journal of National Science Foundation

Due to unsustainability of petro derived fuels, the world is now concerned about alternative, sustainable and eco-friendly energy production. As a successful alternative energy, biodiesel plays a major role to replace petrodiesel.

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biodiesel_madusanka

Evaluation of Well water quality with special emphasis on Principal Component Analysis (PCA) at Maharagama, Sri Lanka

Author: GSS Ganegoda, Pathmalal M Manage and S Pathirage
Journal: Journal of Ecotechnology Research

In the present study 800 well water samples were collected from five Grama Niladhari (GN) divisions situated in Maharagama, Sri Lanka. The area is highly populated and urbanized with a very shallow ground water table. Ground water quality was analyzed and compared with different GN divisions identifying well water contamination pattern using Principal Component Analysis (PCA).

ecotechnology

Heavy metal contamination status in seven fish species from reservoirs of Polonnaruwa district, Sri Lanka

Author: Hiran Wijesinghe, F. Sumaiya Idroos and Pathmalal M Manage
Journal: Sri Lanka Journal of Aquatic Sciences

Heavy metal contamination in aquatic ecosystems has become an emerging environmental issue. The stable physicochemical properties of heavy metals could result in bioconcentration and bioaccumulation in different organs of freshwater fishes. The present study records the accumulation of Lead (Pb), Cadmium (Cd), Chromium (Cr), Copper (Cu) and Zinc (Zn) in the head, muscle and skin regions of seven fish species namely, Labeo rohita, Oreochromis mossambicus, Oreochromis niloticus, Etroplus suratensis, Heteropneustes fossilis, Oligolepsis acutipennis and Puntius dorsalis collected from Minnerya, Parakrama Samudraya and Kaudulla reservoirs in Polonnaruwa district, Sri Lanka.

heavy-metal