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Length-Weight Parameters for Polydactylus virginicus
Length-weight (log a vs b) graph
    [n=8]
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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
0.05300 2.710   unsexed 11.4 - 22.2 SL        19  Colombia Gulf of Salamanca, 1995-97 
0.00760 3.000   unsexed 2.3 - 18.3 TL  1.000  0.070 0.0547 34  Brazil Piraque-acu and Piraque-mirim rivers / 2008-2009. 
0.00730 3.060   unsexed 3.3 - 15.6 TL  0.990  0.048 0.0438 102  Brazil southern Bahia / 2003-2005 
0.00750 3.110   female 9.5 - 32.3 TL  0.960  0.150 0.1938 60  Brazil Pernambuco / 2011-2014. 
0.00650 3.130   mixed 3.4 - 32.3 TL  0.980  0.030 0.0348 392  Brazil Pernambuco / 2011-2014. 
0.00500 3.215   unsexed 8.6 - 25.2 TL  0.955  0.054 0.0655 646  Brazil Northeastern Brazilian coast / 2013-2014. 
0.00490 3.240   male 8.4 - 25.8 TL  0.930  0.280 0.3478 37  Brazil Pernambuco / 2011-2014. 
0.00299 3.350   unsexed 11.4 - 17.8 TL  0.973  0.390 0.3651 12  Brazil Parana´ state coast / 2004 - 2005 
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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 = 8, geometric mean a = 0.0071, mean b = 3.11, SD log10(W) = 0.1382, SD log10(a) = 0.3102 SD b = 0.1670
Estimate weight for given length: (cm) = (g) 95% range - (g)
Search for more references on length-weight:    Scirus
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