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Length-Weight Parameters for Astyanax fasciatus
Length-weight (log a vs b) graph
    [n=10]
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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
0.04500 2.680   unsexed 6.2 - 11.0 TL  0.961  0.180   152  Brazil Jurumirim reservoir, 2001-02 
0.03700 2.758   unsexed 2.9 - 7.9 SL  0.973  0.146 0.0727 42  Colombia Magdalena River floodplain lakes / 2008-2011 
0.03070 2.880   unsexed 7.0 - 13.2 SL  0.941      224  Brazil Itaipu Reservoir, Paraná, 1983-89 
0.02840 2.920   unsexed 2.3 - 12.7 SL  0.970  0.050 0.0417 434  Colombia Cauca River basin / 2010-2011 
0.02400 2.960   unsexed 2.0 - 14.4 SL  0.990  0.010 0.0073 3595  Brazil Taquari River, Paranapanema Basin / 2011-2013. 
0.03090 2.980   unsexed 1.5 - 8.1 SL  0.991  0.040     Portugal Santa Lucía river basin, 2004-2005 
0.01970 3.117   mixed     SL  0.989        Brazil São João River / 2010-2011 
0.00908 3.127   unsexed 6.0 - 11.0 TL  0.967  0.352   11  Colombia Hacha River, Amazon basin / 2008-09. 
0.00600 3.250   unsexed 1.5 - 16.8 TL  0.970  0.030 0.0000 2388  Brazil Upper Uruguay River / 1995-2002. 
0.00693 3.255   unsexed 7.3 - 17.1 TL  0.961  0.036 0.0366 1274  Brazil Pitangui River and Sao Joao River Basin / 2007-2011 
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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 = 10, geometric mean a = 0.0195, mean b = 2.99, SD log10(W) = 0.1418, SD log10(a) = 0.2987 SD b = 0.1841
Estimate weight for given length: (cm) = (g) 95% range - (g)
Search for more references on length-weight:    Scirus
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