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Table 6 Sexual maturity and length–weight relationships for B. altianalis from Lake Edward and Upper Victoria Nile

From: Optimizing selection of sexually mature Barbus altianalis for induced spawning: determination of size at sexual maturity of populations from Lake Edward and Upper Victoria Nile in Uganda

Parameters at L50 Lake Edward Upper River Nile
Females Males Females Males
Standard length (SL)
 Class size 30–34.9 15–19.9 30–34.9 15–19.9
 SL (cm) 31.9 18.0 33.1 19.1
 W(g) = aSLb W = 0.014SL3.116 W = 0.020SL3.130 W = 0.013SL3.153 W = 0.013SL3.150
 W(g) 627.4 127.2 716.8 141.4
 r 0.923 0.908 0.940 0.931
 r2 0.978 0.972 0.991 0.984
Fork length (FL)
 Class size 35–39.9 20–24.9 35–39.9 20–24.9
 FL (cm) 35.4 21.1 36.9 22.9
 W(g) = aFLb W = 0.01FL3.129 W = 0.010FL3.128 W = 0.008FL3.164 W = 0.0103.126
 W(g) 702.8 135.8 726.4 178.7
 r 0.925 0.915 0.939 0.930
 r2 0.976 0.979 0.910 0.984
Total length (TL)
 Class size 40–45.9 20–24.9 40–44.9 20–24.9
 TL (cm) 41.6 23.5 40.0 24.2
 W(g) = aTLb W = 0.006TL3.160 W = 0.006TL3.149 W = 0.004TL3.281 W = 0.004TL3.251
 W(g) 784.0 124.6 726.4 126.10
 r 0.926 0.911 0.933 0.921
 r2 0.973 0.965 0.989 0.980
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Fisheries and Aquatic Sciences

ISSN: 2234-1757

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