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Length-Weight Parameters for Rhamdia quelen
Length-weight (log a vs b) graph
    [n=19]
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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
0.01400 2.790   unsexed 16.0 - 34.0 TL  0.960  0.150 0.2430 62  Brazil Para?ba do Sul River / 2010-2011 
0.02500 2.850   unsexed 10.1 - 32.0 SL  0.954  0.200 0.4437 59  Brazil Paraíba do Sul River, Minas Gerais / 2008-2010. 
0.02780 2.880   unsexed 1.4 - 19.0 SL  0.992  0.060     Portugal Santa Lucía river basin, 2004-2005 
0.02330 2.980   male 12.7 - 37.0 SL  0.950  0.040 0.1660 29  Argentina Pampa plains lakes, Buenos Aires / 2008-2012 
0.01890 2.990   unsexed 1.5 - 17.9 SL  0.980  0.130 0.1151 43  Brazil Iguatemi River / 2006-2008 
0.00498 3.000   unsexed 2.9 - 44.0 TL  0.990  0.090 0.0160 14  Brazil Chasqueiro Stream, Arroio Grande 
0.01770 3.000   unsexed 61.0 - 61.0 TL        1   
0.01950 3.040   mixed 10.4 - 39.7 SL  0.970  0.120 0.1695 98  Argentina Pampa plains lakes, Buenos Aires / 2008-2012 
0.01680 3.080   female 10.4 - 39.7 SL  0.970  0.140 0.0492 59  Argentina Pampa plains lakes, Buenos Aires / 2008-2012 
0.00685 3.091   unsexed 9.3 - 41.9 TL  0.987  0.034 0.0461 422  Brazil Pitangui River and Sao Joao River Basin / 2007-2011 
0.00550 3.101   unsexed 8.0 - 22.7 TL  0.990  0.113 0.1606 15  Peru Manu Biosphere Reserve / 2012 
0.01340 3.110   unsexed 6.9 - 33.9 SL  0.972  0.140 0.1811 5  Brazil Taquari River, Paranapanema Basin / 2011-2013. 
0.01110 3.110   unsexed 6.5 - 22.5 SL  0.989  0.060 0.0736 114  French Guiana 2011-2012 
0.00500 3.130   unsexed 11.5 - 51.0 TL  0.970  0.040 0.0000 668  Brazil Upper Uruguay River / 1995-2002. 
0.00920 3.200   mixed 15.5 - 37.5 SL  0.950  0.150 0.2234 90  Brazil Iguacu River basin / 2004-2009 
0.00480 3.200   unsexed 17.3 - 35.2 TL  0.960  0.310 0.4508 21  Brazil Guandu River / 2010-2011 
0.00840 3.240   mixed 12.5 - 37.5 SL  0.980  0.100 0.1389 98  Brazil Iguacu River basin / 2004-2009 
0.00800 3.279   unsexed 5.3 - 20.5 SL  0.971  0.182 0.2041 42  Mexico Grijalva River in Chiapas / 2006, 2009 
0.00350 3.300   unsexed 6.5 - 30.5 TL  0.980  0.140 0.1823 34  Brazil Guandu River / 2010-2011 
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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 = 18, geometric mean a = 0.0105, mean b = 3.08, SD log10(W) = 0.203, SD log10(a) = 0.2728 SD b = 0.1393
Estimate weight for given length: (cm) = (g) 95% range - (g)
Search for more references on length-weight:    Scirus
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