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Length-Weight Parameters for Pteroplatytrygon violacea
Length-weight (log a vs b) graph
    [n=3]
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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
0.02790 2.947   male     WD  0.766      121  Brazil Santo and Guaruja, Sao Paolo/2006-2007. 
0.02730 2.952   mixed 36.5 - 68.5 WD  0.879      157  Brazil Santo and Guaruja, Sao Paolo/2006-2007. 
0.02190 3.006   female 36.5 - 68.5 WD  0.957      36  Brazil Santo and Guaruja, Sao Paolo/2006-2007. 
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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 = 3, geometric mean a = 0.0251, mean b = 2.97, SD log10(W) = 0, SD log10(a) = 0.0490 SD b = 0.0265
Estimate weight for given length: (cm) = (g) 95% range - (g)
Search for more references on length-weight:    Scirus
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