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Length-Weight Parameters for Poecilia butleri
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
0.02600 3.130 Yes  unsexed 1.8 - 5.5 SL  0.990  0.480 0.0540 44  Mexico Bah?´a de La Paz / 2009-2010. 
0.02300 3.270   unsexed 1.5 - 6.1 SL  0.968  0.040   1868  Mexico Carretas-Pereyra lagoon, Chiapas / 2004-2007. 
0.01150 3.432   unsexed 2.1 - 5.5 SL  0.940  0.332   33  Mexico south-eastern coast of Michoacán / 2010-2011. 
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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 = 0.0162, mean b = 3.35, SD log10(W) = 0.1025, SD log10(a) = 0.1507 SD b = 0.0812
Estimate weight for given length: (cm) = (g) 95% range - (g)
Search for more references on length-weight:    Scirus
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