Int. J. of Life Sciences, 2017, Vol. 5 (4): 631-634 ISSN: 2320-7817| eISSN: 2320-964X © 2017 |IJLSCI www.ijlsci.in 631 Ichthyofaunal diversity in contaminated site and normal site of Nagaram Lake, Warangal. Balakrishna D, Laxmiprasad K, Suresh P and Reddy Ravinder T Department of Zoology, Kakatiya Universtiy, Warangal, Telangana, India-506009 Corresponding Author’s e-mail: dhathrika@gmail.com. Manuscript details: ABSTRACT Received: 23. 09.2017 Accepted: 29.12.2017 Published : 14.12.2017 Editor: Dr. Arvind Chavhan Cite this article as: Balakrishna D, Laxmiprasad K, Suresh P and Reddy Ravinder T (2017) Ichthyofaunal diversity in contaminated site and normal site of Nagaram Lake, Warangal; International J. of Life Sciences, 5 (4): 631-634. Copyright: © 2017| Author (s), This is an open access article under the terms of the Creative Commons Attribution-Non-Commercial - No Derivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non- commercial and no modifications or adaptations are made. In the present study we made an attempt to assess the fish diversity in polluted region and normal regions of the Nagaram lake,Warangal district, Telangana. The complete drainage water of Warangal urban area passed away from the city and entering into the Nagaram Lake from the past three decades. During the study period 28 different fish species belongs to six orders were observed in this lake. The fish dominance order is cypriniformes, siluriformes, perciformes, channiformes osteoglossiformes and antheriformes respectively. Among the 28 species Catla catla, is the dominant fish species followed by Labeo rohitha, and Cirrhinus mrigala in normal region. Clarius batracus, is dominant fish species in drainage blending region followed by Heteropneustus fossilis, Channa punctatus and Anabus. Key words: Nagaram, Fish, Drainage, Warangal, Ichthyofauna. INTRODUCTION Wetlands play a major role in the earth by providing unique habitats for a wide variety of flora and fauna. The shallow fresh water habitats are the most productive systems on the earth and support natural communities of great beauty and diversity. This wetlands are subjected to polluted mainly from domestic sewage as well as other solid and liquid pollutants generated by human and anthropogenic activities. Nagaram lake is one of the biggest lake in this area and it spread over the area of 24 kilometers. This lake was constructed by Kakatiya rulers for the purpose of irrigation and human consumption. It is 12 km far away from Warangal city. Warangal city is second largest city in Telangana state, spreading across 158 sq. miles with a population of 9 lakhs above. Now a days this lake becoming gradually polluted due to drainage discharge of Warangal city. It is estimated that around 20% of the dry lands of the planet are already completely decertified and that the decertified areas will increase considerably in the coming decades (Balakrishna et al., 2013). Aquatic pollution mainly affect on fish species. Fish are relatively sensitive to RESEARCH ARTICLE