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Length-Weight Parameters for Pimelodella gracilis
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
0.04530 2.390 Yes  unsexed 8.6 - 12.0 SL  0.913  0.650 0.6649 7  Uruguay Negro River, Tacuarembo´ - Durazno / 2008-2009. 
0.00940 2.830   male 4.6 - 17.3 TL  0.990  0.080 0.0844 42  Brazil Marechal Dutra reservoir / 2008-2009. 
0.00906 2.850   mixed 4.5 - 17.3 TL  0.980  0.070 0.0752 92  Brazil Marechal Dutra reservoir / 2008-2009. 
0.00875 2.870   female 4.5 - 16.5 TL  0.980  0.130 0.1251 50  Brazil Marechal Dutra reservoir / 2008-2009. 
0.01110 3.030   unsexed 4.8 - 12.0 SL  0.990  0.070 0.1477 20  Brazil Iguatemi River / 2006-2008 
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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 = 0.0095, mean b = 2.90, SD log10(W) = 0.1072, SD log10(a) = 0.0400 SD b = 0.0794
Estimate weight for given length: (cm) = (g) 95% range - (g)
Search for more references on length-weight:    Scirus
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