6'
IJANSl POND 1. I
" -I.' "0(^0) C 35 -
5 30-
o 2s-e
20 - LAKE OEORBE
L I5 -
lo -
5 -
0 """"
Total length (cm)
20 -
Figure 1. Length frequency distributions of male (x.... x ) and female (a-0)
Sarotherodon niloticus from various East African waters (after Lowe (McConnell)
1958). A, Lake Turkana, seined fish, maturation size (m.8.) 39 cm TL, both sexes;
B, Lake George, gillnetted fish, m.s. 28 cm both sexes; C, Lake Kijanebalola, gill-
netted fish, m.s. 17 cm both sexes; D, Buhuku lagoon, Lake Albert, seined fish,
m.s. 14 cm male, 12 cm female; E, Kijansi pond, Uganda, fish examined alive
when pond drained, males of 18 cm in breeding colors.
I5
10
5
- A
- LAKE TURKANA
0 ''''''''1-
2 4 6 8 10 I2 14 I6 I6 20 22242628303234363840424446*85052MW W808284M