2020, Vol. 5 Issue 2, Part DECEMBER
Observation and analysis of the gut contents of some common edible fresh water cat fishes of river Gomti at district Sultanpur
Author(s): Surya Prakash Mishra
Abstract: The present study was carried out to observe and analyze the gut contents of some common edible fresh water cat fishes (Heteropneustes fossilis, Clarias batrachus, M. seenghala and Wallago attu) of river Gomti at district Sultanpur, Uttar Pradesh, India during March 2019 to February 2020. The information on the food and feeding habit of fish helps to know about the interspecific relationship of aquatic fauna and the productivity of the water body. The result so obtained were used to compute percentage volume of food items in the gut (% Vi), and frequency of occurrence of guts having particular food items (% Oi) of experimental cat fishes. In the present study, the gut content analysis showed that the H. fossilis and C. batrachus feeds on insects, crustaceans and rotifers as a basic or main food, fish larvae and fish remains as an occasional or secondary food and plant matter as obligatory food; M. seenghala feeds on small fishes as a basic or main food, insects, crustaceans and rotifers as an occasional or secondary food and plant matter as an incidental food; W. attu feeds on small fishes as a basic or main food and crustaceans, insects and rotifers as an occasional or secondary food. Hence, it can be concluded that the H. fossilis and C. batrachus are carnivorous but not piscivorous whereas M. seenghala and W. attu are carnivorous and piscivorous. These findings were also verified by the index of preponderance of various food items.