The Biology and Culture of Tilapias

Plate 1. Phase I of the Rodolpho von Ihering Fish Culture Research Center, Pentecost, Brazil.

(Reprinted by kind permission of the International Center for Aquaculture, Auburn Uni-

versity .)

1

Plate 2. Sarotherodon hornorum male, all-
male hybrid (S. niloticus x S. hornorum) and
S. niloticus female (top to bottom).

Plate 8. A 36 m2 concrete-sided, earthern-

bottomed tank used to maintain pure strains

of tilapia for hybridization in Northeast

Brazil. When in use, the tank has a filtered

water supply and is covered with a net to

avoid contamination from wild stocks.

(Reprinted by kind permission of the Inter-

national Center for Aquaculture, Auburn

University .)