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Length-Weight Parameters for Poeciliopsis gracilis
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
0.00790 2.834   male 2.3 - 4.8 TL  0.970  0.418   28  Mexico Biosphere Barranca de Metztitlán, Hidalgo State (20°14' - 20°45'N and 98°23' - 98°57'W) 
0.01420 2.936   mixed 1.5 - 9.0 TL  0.910      1106  Mexico Biosphere Barranca de Metztitlán, Hidalgo State (20°14' - 20°45'N and 98°23' - 98°57'W) 
0.01560 3.242   female 4.9 - 9.0 TL  0.870      39  Mexico Biosphere Barranca de Metztitlán, Hidalgo State (20°14' - 20°45'N and 98°23' - 98°57'W) 
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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 = 0.0120, mean b = 3.00, SD log10(W) = 0.2592, SD log10(a) = 0.1323 SD b = 0.1720
Estimate weight for given length: (cm) = (g) 95% range - (g)
Search for more references on length-weight:    Scirus
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