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Length-Weight Parameters for Sphyrna lewini
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
0.04600 2.417 Yes  female 46.0 - 56.5 TL  0.880      22  India Southern coast of Karnataka / 1999-2001 
0.01100 2.790   unsexed 46.5 - 220.0 TL  0.990  0.060 0.1223 65  Mexico near mouth of Rio Verde, Oaxaca / 2009-2010. 
0.01260 2.810   unsexed 105.0 - 235.0 TL          USA off Mississippi River to Brownsville, Texas, 1982-85 
0.00403 3.000   female     TL          Mexico southern Sinaloa/2003-2005 
0.00430 3.000   male     TL          Mexico southern Sinaloa/2003-2005 
0.00399 3.030   unsexed       0.984      252  Australia Northern waters, 1980-86 
0.00428 3.030   unsexed     TL          Australia Great Barrier Reef 
0.00777 3.067   mixed 79.0 - 243.0 FL  0.925      390  USA Gulf of Maine to Florida Keys, 1961-89 
0.00300 3.069 yes  juvenile 54.0 - 141.5 TL        67  Brazil Southeastern and southern regions 
0.00353 3.070   male     TL          India Katnataka 
0.00352 3.074   female     TL          India Katnataka 
0.00282 3.129   female     TL        276  Chinese Taipei Off northeastern waters, 1984-85 
0.00255 3.130   female 40.5 - 117.0 TL  0.929  0.865 0.0856 1198  Brazil southeastern Brazil / 1996-2003 
0.00226 3.160   mixed 40.5 - 127.0 TL  0.927  0.893 0.0690 1994  Brazil southeastern Brazil / 1996-2003 
0.00556 3.163   juvenile 38.0 - 77.0 TL  0.978      29  New Caledonia lagoon 
0.00195 3.190   male 41.0 - 127.0 TL  0.924  0.903 0.1128 796  Brazil southeastern Brazil / 1996-2003 
0.00415 3.239 yes  juvenile 38.0 - 91.0 FL  0.982      30  New Caledonia  
0.00135 3.252   male     TL        49  Chinese Taipei Off northeastern waters, 1984-85 
0.00200 3.285   male 43.5 - 52.5 TL  0.950      21  India Southern coast of Karnataka / 1999-2001 
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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 = 16, geometric mean a = 0.0039, mean b = 3.08, SD log10(W) = 0.9899, SD log10(a) = 0.2706 SD b = 0.1382
Estimate weight for given length: (cm) = (g) 95% range - (g)
Search for more references on length-weight:    Scirus
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