Abstract
Wetlands of India preserve a rich variety of fish species. Globally wetlands as well as fauna and flora diversity are affected due to increase in anthropogenic activities. The present investigation deals with the fish bio-diversity of selected major wetlands Periyakulam famously called Ukkadam Lake, Singanallur Lake andSulur Lake of Coimbatore district fed by Noyyal River. Due to improper management of these lentic wetlands water bodies around Coimbatore district by using certain manures, insecticides in agricultural practices in and around these selected areas has polluted the land and these fresh waters creating hazards for majorvertebrate fishes which are rich source of food and nutrition, an important and delicious food of man. The results of the present investigation reveals the occurrence of 19 fish species belonging to 5 order, 8 families 18 species recorded from the Ukkadam wetland followed by Singanallur wetland with 5 different orders 7 different families and 14 species. Ichthyofaunal diversity of Sulur wetland compressed of 6 families with 14 species. The order Cypriniformes was found dominant followed by Perciformes, Ophicephalidae, Siluriformes and Cyprinodontiformes species in Ukkadam and Singanallur wetland lakes while in Sulur it was recorded as Cyprinidae > Cichlida > Ophiocephalidae > Anabantidae > Bagridae > Heteropneustidae. This study on the freshwater fish species diversity of these wetlands would help in explore the fish fauna status and estimate the factors that may need rectification for fish conservation and management.
Highlights
Water is the elixir of life, an expensive gift of nature to mankind and millions of other species living on the earth
The present investigation deals with the fish bio-diversity of selected major wetlands Periyakulam famously called Ukkadam Lake, Singanallur Lake and Sulur Lake of Coimbatore district fed by Noyyal River
The results of the present investigation reveals the occurrence of 19 fish species belonging to 5 order, 8 families 18 species recorded from the Ukkadam wetland followed by Singanallur wetland with 5 different orders 7 different families and 14 species
Summary
Water is the elixir of life, an expensive gift of nature to mankind and millions of other species living on the earth. Wetland is estimated to cover 5-10% of the earth‘s terrestrial surface (Mitsch and Gosselink 2007).Coimbatore being a rapidly developing city in the western part of Tamil Nadu, has several wetlands and lakes in and around its limits These wetlands have been facing rapid degradation due to liquid or solid waste disposal, filling and reclamation, real-estate ventures and industrial development has open drainage and sewerage systems which joining these lakes without any prior treatment. The present review was undertaken in Coimbatore on urban lakes wetlands to know about water quality of these water bodies with reference to the pollution from various sources It is one of the fastest growing cities in Tamil Nadu, India that has around 28 wetlands in and around the city which are fed by the river Noyyal
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