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Length-Weight Parameters for Hypanus say
Length-weight (log a vs b) graph
    [n=2]
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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
0.02653 3.053   mixed 39.0 - 103.0 WD  0.999      7  USA Atlantic coast / Spring 1992-1999. 
0.01892 3.230   mixed 10.0 - 104.0 WD  0.992      149  USA Atlantic coast / Autumn 1992-1999. 
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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 = 2, geometric mean a = 0.0224, mean b = 3.14, SD log10(W) = 0, SD log10(a) = 0.0735 SD b = 0.0883
Estimate weight for given length: (cm) = (g) 95% range - (g)
Search for more references on length-weight:    Scirus
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