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Length-Weight Parameters for Symphurus tessellatus
Length-weight (log a vs b) graph
    [n=12]
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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
0.00680 2.989   female 7.7 - 18.4 TL  0.980  0.122 0.1249 62  Brazil southern Bahia / 2003-2005 
0.00558 3.084   unsexed 6.1 - 17.8 TL  0.895  0.262 0.5162 59  Brazil Southeastern coast / 2004-2006. 
0.00530 3.098   unsexed 3.0 - 19.0 TL  0.990  0.040 0.0430 316  Brazil southern Bahia / 2003-2005 
0.00500 3.140   Unsexed 4.6 - 17.1 TL  0.966      95  Brazil Southeastern region, 1995-1996 
0.00382 3.210   unsexed 7.3 - 17.7 TL  0.953  0.110 0.0935 183  Brazil Parana´ state coast / 2004 - 2005 
0.00400 3.220   female 12.2 - 17.5 TL  0.900  0.310 0.3468 53  Brazil Pernambuco / 2011-2014. 
0.00383 3.238   mixed 5.4 - 15.6 TL  0.980  0.461 1.1141 41  Brazil Paraná (0°S - 25°S), 2003-2004 
0.00361 3.240   mixed 3.5 - 16.7 TL  0.980  0.460 0.9400 400  Brazil Espirito Santo (0°S - 25°S), 2003-2004 
0.00250 3.250   unsexed 3.6 - 15.5 TL  0.980  0.170 0.1427 37  Brazil Guaratiba Mangrove / 2002-2003 
0.00314 3.299   Unsexed 9.7 - 25.0 TL  0.976      379  Brazil Southeastern region (São Sebastião System), São Paulo, 1997 
0.00270 3.350   mixed 3.9 - 17.8 TL  0.980  0.070 0.0889 111  Brazil Pernambuco / 2011-2014. 
0.00261 3.419   mixed 11.0 - 17.3 TL  0.966  0.653 1.7235 26  Brazil Paraná (0°S - 25°S), 2003-2004 
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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 = 12, geometric mean a = 0.0039, mean b = 3.21, SD log10(W) = 0.049, SD log10(a) = 0.1345 SD b = 0.1145
Estimate weight for given length: (cm) = (g) 95% range - (g)
Search for more references on length-weight:    Scirus
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