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Length-Weight Parameters for Pterygoplichthys ambrosettii
Length-weight (log a vs b) graph
    [n=4]
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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
0.08880 2.570   unsexed 26.2 - 35.0 SL  0.910  0.500 0.7443 14  Brazil Santa Virginia Bay, Rio Negro basin, Pantanal / 1999-2001 
0.05900 2.731   female 20.6 - 55.0 TL  0.967  0.071 0.1081 200  Brazil Porto Primavera Reservoir / 1999-2012 
0.05800 2.733   mixed 20.6 - 55.0 TL  0.961  0.054 0.0840 398  Brazil Porto Primavera Reservoir / 1999-2012 
0.05090 2.767   male 21.9 - 54.9 TL  0.952  0.087 0.1362 198  Brazil Porto Primavera Reservoir / 1999-2012 
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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 = 4, geometric mean a = 0.0631, mean b = 2.70, SD log10(W) = 0.0283, SD log10(a) = 0.0894 SD b = 0.0755
Estimate weight for given length: (cm) = (g) 95% range - (g)
Search for more references on length-weight:    Scirus
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