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Length-Weight Parameters for Pachyurus bonariensis
Length-weight (log a vs b) graph
    [n=7]
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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
0.03040 2.820   unsexed 12.0 - 22.6 SL  0.901      25  Brazil Itaipu Reservoir, Paraná, 1983-89 
0.02570 2.860   unsexed 1.7 - 20.5 SL  0.990  0.110 0.1111 29  Uruguay Negro River, Tacuarembo´ - Durazno / 2008-2009. 
0.01780 2.990   unsexed 8.0 - 24.0 SL  0.945  0.090 0.0951 288  Argentina Uruguay River 
0.01510 3.050   unsexed 5.0 - 18.3 SL  0.990        Uruguay lower Uruguay River, 2006-2007 
0.00700 3.210   unsexed 10.8 - 21.6 TL  0.970  0.190 0.2430 39  Brazil Upper Uruguay River / 1995-2002. 
0.00828 3.310   unsexed 8.0 - 25.0 SL  0.969  0.100 0.1299 124  Argentina Parana River 
0.00390 3.360   unsexed 10.9 - 24.6 TL  0.960  0.100 0.1287 155  Brazil Delta State Park Jacui / 2008-2009 
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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 = 7, geometric mean a = 0.0123, mean b = 3.09, SD log10(W) = 0.0917, SD log10(a) = 0.2983 SD b = 0.1967
Estimate weight for given length: (cm) = (g) 95% range - (g)
Search for more references on length-weight:    Scirus
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