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Length-Weight Parameters for Pterygoplichthys pardalis
Length-weight (log a vs b) graph
    [n=5]
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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
0.03900 2.780   unsexed 8.1 - 31.5 SL  0.920  0.110 0.1439 192  Peru Andean Amazon piedmont / 2009, 2010. 
0.01600 2.807   unsexed 15.4 - 57.8 TL  0.920  0.060 0.0902 735  Puerto Rico Puerto Rico reservoirs / 1998-2014. 
0.03340 2.935   mixed 14.0 - 49.0 TL  0.952  0.375 0.1813 34  Agusan Marsh, 2014-2015 
0.03400 2.935   unsexed 14.0 - 49.0 TL  0.952  0.375 0.1891 34  Philippines Agusan Marsh / 2011 
0.02010 3.005   unsexed 1.4 - 34.8 SL  0.990  0.019 0.0222 422  Brazil Catalão Lake, middle Amazonas River / 1999-2017. 
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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 = 5, geometric mean a = 0.0269, mean b = 2.89, SD log10(W) = 0.1584, SD log10(a) = 0.1490 SD b = 0.0854
Estimate weight for given length: (cm) = (g) 95% range - (g)
Search for more references on length-weight:    Scirus
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