The Biology and Culture of Tilapias

Time of day (hr)

Figure 7. The daily feeding cycle of Tilapia rendalli in Lake McIlwaine, Zimbabwe (a,
1.9.75; b, 30.10.75).

Temperature OC

Figure 8. The effect of temperature on the daily food ingestion of laboratory-maintained
juvenile (50 g) Tilapia rendalli. Dotted line extrapolated to show decline and cessation of
feeding above 35'~ (see text).