Table 5. Bivariate correlation of the fish gonads with the vegetation and bottom types

Mature gonads	Vossia cuspidate	Typha capensis	Eichhornia crassipes	Pistia hydrilla	Cyperus papyrus	Phragmites spp	Potamogeton schweinfurthii	Salvinia molesta	Bottom type
Nile perch	–0.175	0.135	0.132	–0.632*	0.511	0.497	0.264	–0.632*	–0.885**
Nile Tilapia	0.110	0.215	–0.129	–0.129	0.108	–0.110	0.789*	0.31	0.000

p < 0.05,
p < 0.01.