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Length-Weight Parameters for Pygocentrus nattereri
Length-weight (log a vs b) graph
    [n=5]
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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
0.02800 3.000   unsexed 9.0 - 25.0 TL        2  Brazil  
0.03590 3.060   unsexed 13.5 - 23.8 SL  0.930  0.120 0.1572 188  Brazil Santa Virginia Bay, Rio Negro basin, Pantanal / 1999-2001 
0.03546 3.125   unsexed 7.0 - 21.4 SL  0.960  0.022 0.0247 822  Brazil Madiera River, Amazon / 2008-2011 
0.02690 3.230   unsexed 24.0 - 33.3 SL  0.910      41  Brazil Itaipu Reservoir, Paraná, 1983-89 
0.01080 3.310   unsexed 9.3 - 25.3 TL  0.984  0.120 0.1526 50  Brazil Xingu River basin / 2012-2014 
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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 = 5, geometric mean a = 0.0251, mean b = 3.15, SD log10(W) = 0.1277, SD log10(a) = 0.1995 SD b = 0.1105
Estimate weight for given length: (cm) = (g) 95% range - (g)
Search for more references on length-weight:    Scirus
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