Table 2.

Predation of Clarias gariepinus on Culex mosquitoes during light and night hours

Fish size	Number exposed	Fish food	Light hour (From 6:00 am to 6:00 pm)		Night hour (from 6:00 pm to 6:00 am)		p value
			Average consumed (SE)	Percent consumed	Average consumed (SE)	Percent consumed
Small	50	Adequate	25.0 (2.9)	50.0	50.0 (0.0)	100.0	<0.001
	50	Inadequate	40.0 (2.9)	80.0	50.0 (0.0)	100.0	0.001
	50	No	45.0 (2.9)	90.0	50.0 (0.0)	100.0	0.023
	100	Adequate	60.0 (8.7)	60.0	100.0 (0.0)	100.0	<0.001
	100	Inadequate	85.0 (2.9)	85.0	100.0 (0.0)	100.0	0.004
	100	No	80.0 (2.0)	80.0	100.0 (0.0)	100.0	0.001
	150	Adequate	146.0 (1.2)	97.3	150.0 (0.0)	100.0	0.217
	150	Inadequate	125.0 (2.9)	83.3	150.0 (0.0)	100.0	0.002
	150	No	110.0 (5.8)	73.3	150.0 (0.0)	100.0	<0.001
Large	50	Adequate	41.7 (4.4)	83.3	50.0 (0.0)	100.0	0.002
	50	Inadequate	25.0 (2.9)	50.0	43.3 (2.0)	86.7	<0.001
	50	No	23.3 (1.7)	46.7	50.0 (0.0)	100.0	<0.001
	100	Adequate	40.0 (2.9)	40.0	100.0 (0.0)	100.0	<0.001
	100	Inadequate	40.0 (2.9)	40.0	90.0 (2.9)	90.0	<0.001
	100	No	16.7 (4.4)	16.7	100.0 (0.0)	100.0	<0.001
	150	Adequate	40.0 (5.8)	26.7	150.0 (0.0)	100.0	<0.001
	150	Inadequate	50.0 (5.8)	33.3	150.0 (0.0)	100.0	<0.001
	150	No	30.0 (5.8)	20.0	150.0 (0.0)	100.0	<0.001

Note: Average larvae consumed is the mean of the number of larvae consumed for three replicate experiments

P values significance test on the comparison of percent of Culex larvae consumed between day light and day night hours