The Biology and Culture of Tilapias

Table 3. Nursing tilapia fingerlings in a 5.7-ha polyculture pond with other species grown to market weight at Harna'apil, Israel.

Species

Average

Culture Average Density weight at

Stocking Harvesting period stocking at harvest harvest Yield

date date (days)* weight (g) ( fishlha) (g) (kg/ha)

Common carp
(Cyprinus carpio)

Mullet
(Mugil cephalus)

Mar. 12 Dec. 29 24 5 29 4,540 1,106 4,889

Mar. 17 Dec. 29 244 156 1,750 500 563

Silver carp Mar. 7 Dec. 29 245 195 1,400 2,268 2,980
(Hypophthalmichthys molitrix)

Tilapia
(Sorotherodon aureus)

Aug. 9 Dec. 29 98 13 9,120 100 835

Annual yield (245 days) 9,267

*Taken as within the period March 15 to November 15, when the temperature is suitable for fish growth.