These are presented in Table 1 . The weir was moved to the outlet of the lake in 1945. The spawning runs occur in the summer each year. The spawning fish migrate up the Chobe River into Chobe Lake. Both males and females return to the stream in which they were originally hatched to spawn.
Female salmon scoop out a bed in the gravel and deposit their eggs in it.
The male salmon fertilize the eggs and then the eggs are covered with gravel. After spawning the fish die and their bodies decompose in the streams and the lake. The eggs hatch during the late winter or early spring and the fry emerge from the gravel in the spring or summer. Fry hatched in streams descend into the lake. The young live from 2 to 3 years in the lake.