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Length-Weight Parameters for Hypostomus commersoni
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
0.07560 2.630   unsexed 17.5 - 32.0 SL  0.980  0.370 0.5056 6  Uruguay Negro River, Tacuarembo´ - Durazno / 2008-2009. 
0.06020 2.730   unsexed 7.0 - 47.0 SL  0.972  0.050 0.0746 302  Argentina Parana River 
0.02400 2.850   unsexed 1.2 - 37.0 SL  0.992  0.070     Brazil Santa Lucía river basin, 2004-2005 
0.00475 2.850   unsexed 2.2 - 39.6 TL  0.990  0.200 0.0313 16  Brazil Chasqueiro Stream, Arroio Grande 
0.03810 2.850   unsexed 6.5 - 39.0 SL  0.975  0.070 0.0896 197  Argentina Uruguay River 
0.03160 2.930   mixed 11.5 - 31.5 SL  0.960  0.080 0.1070 208  Brazil Iguacu River basin / 2004-2009 
0.01000 2.990   unsexed 5.3 - 60.5 TL  0.970  0.050 0.0969 401  Brazil Upper Uruguay River / 1995-2002. 
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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 = 0.0251, mean b = 2.83, SD log10(W) = 0.3251, SD log10(a) = 0.3972 SD b = 0.1114
Estimate weight for given length: (cm) = (g) 95% range - (g)
Search for more references on length-weight:    Scirus
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