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Length-Weight Parameters for Psectrogaster amazonica
Length-weight (log a vs b) graph
    [n=4]
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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
0.04770 2.810   male 8.0 - 19.0 SL  0.920  0.052 0.0563 978  Brazil Tucuru?´ Reservoir / 2001-2010 
0.03850 2.898   mixed 8.0 - 19.0 SL  0.920  0.030 0.0328 3128  Brazil Tucuru?´ Reservoir / 2001-2010 
0.03490 2.939   female 8.0 - 18.5 SL  0.920  0.037 0.0404 2150  Brazil Tucuru?´ Reservoir / 2001-2010 
0.02615 3.086   unsexed 7.2 - 17.3 SL  0.960  0.032 0.0349 375  Brazil Madiera River, Amazon / 2008-2011 
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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 = 4, geometric mean a = 0.0355, mean b = 2.93, SD log10(W) = 0.01, SD log10(a) = 0.0943 SD b = 0.1005
Estimate weight for given length: (cm) = (g) 95% range - (g)
Search for more references on length-weight:    Scirus
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