FOOD AND FEEDING HABITS OF NILE PERCH (Lates niloticus) IN OYAN DAM

Sodiq Olayinka Ogundiran
Aquaculture and Fisheries Management, Federal University of Agriculture Abeokuta, Ogun State
October, 2013
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Abstract

A research was conducted into the natural feeding habits of Lates niloticus in oyan dam, Abeokuta, Ogun state, Nigeria between the months of June to September, 2014. A total of 60 Lates niloticus was collected with the aid of artisanal fishermen using fishing gear such as, cast nets and gill nets. Frequency of occurrence and Numerical methods of analysis was used to analyze the stomach contents. The result of analysis of the food items found in the stomach of Lates niloticus obtained from oyan dam was presented. The percentage of empty stomach was low. A total of 60 specimens were examined during the period of investigation, which is June to September, 2014. Out of the specimen examined only 14 had empty stomach. These had a total length varying from 9.0 – 40.0cm with a mean of 19.21 ± 0.95 and a standard length from 7.8-38.0cm, with a mean of 17.47 ± 0.90. The body weight varied from 23.5 – 550g, with mean of 188.91 ± 2.16. Only 23% of the specimens had empty stomachs. The food items encountered in the stomach covered a wide spectrum and it’s shown that it feed on a variety of food items. Fish parts dominate the stomach content followed by Insects and Blue-green algae, which indicate that the specie is a carnivore. Unidentified detritus also occurred sparingly in the diets.