Visited one of the most advanced research vessels, Dr. Fridtjof Nansen

One of the most advanced research vessels in the world, the Dr. Fridtjof Nansen, arrived in Colombo to conduct surveys on fisheries resources and the marine ecosystem around Sri Lanka on 21.06.2018 and the Aquatic students of the Department of Zoology, University of Sri Jayewardenepura got a chance to visit this research vessel on 23.06.2018.

The research vessel Dr. Fridtjof Nansen is owned by the Norwegian Agency for Development Cooperation (Norad) and is jointly operated by the Norwegian Institute of Marine Research (IMR) and FAO.

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

Removal of Ciprofloxacin (CIP) by bacteria isolated from hospital effluent water and identification of degradation pathways

Author: G.Y. Liyanage, Pathmalal Manage
Journal: International Journal of Medical, Pharmacy and Drug Research (IJMPD)

Most antibiotics are metabolized incompletely by patients after administration and enter the municipal sewage with the patients’ excretion. Therefore, studies on the biodegradability of some clinically important drugs can be taken as a very first step of an environmental risk assessment. The present study reports the biodegradation of CIP by Lactobacillus gesseri, Enterobacter sp., Bacillus sp., Bacillus subtilius and Micrococcus luteus which were isolated as CIP resistance, non pathogenic bacteria.

ciprofloxacin