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Length-Weight Parameters for Prochilodus nigricans
Length-weight (log a vs b) graph
    [n=10]
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a b Country Locality
Score a b Doubtful? Sex Length (cm) Length
type 		r2 SD b SD log10 a n Country Locality
0.05140 2.446   unsexed 9.1 - 18.5 TL  0.989  0.106 0.1111 27  Brazil Itacaiúnas River / 2009-2011. 
0.06650 2.630   mixed 16.0 - 38.0 TL  0.900        Colombia Amazon river basin, 2012-2013 
0.04400 2.777   male 8.8 - 30.3 SL  0.904      949  Colombia Puerto Leguízamo, Putumayo River / 2009-2017 
0.02972 2.933   unsexed 7.2 - 38.2 SL  0.960  0.024 0.0332 639  Brazil Madiera River, Amazon / 2008-2011 
0.02770 3.021   male 7.6 - 48.5 SL  0.957  0.043 0.0587 862  Brazil Serra da Mesa Reservoir / 1995-2010. 
0.02740 3.025   mixed 5.9 - 52.5 SL  0.975  0.017 0.0228 2993  Brazil Serra da Mesa Reservoir / 1995-2010. 
0.02720 3.029   female 12.3 - 52.5 SL  0.965  0.037 0.0526 909  Brazil Serra da Mesa Reservoir / 1995-2010. 
0.01990 3.045   female 10.2 - 33.9 SL  0.925      1117  Colombia Puerto Leguízamo, Putumayo River / 2009-2017 
0.01090 3.130   unsexed 7.5 - 45.0 TL  0.993  0.050 0.0643 106  Brazil Xingu River basin / 2012-2014 
0.00950 3.179   unsexed 21.0 - 42.0 TL  0.908      1144  Brazil Lower Amazon, 1992-93 
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Preliminary parameter estimates are provided below, based on your selection of studies and weighted by the scores.
You may want to exclude or give less weight to studies that are far from the regression line in the graph.
Selected studies = 10, geometric mean a = 0.0269, mean b = 2.92, SD log10(W) = 0.1688, SD log10(a) = 0.2548 SD b = 0.2223
Estimate weight for given length: (cm) = (g) 95% range - (g)
Search for more references on length-weight:    Scirus
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