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Length-Weight Parameters for Sphyrna lewini
Length-weight (log a vs b) graph
    [n=11]
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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
0.01260 2.810   unsexed 105.0 - 235.0 TL          USA off Mississippi River to Brownsville, Texas, 1982-85 
0.00399 3.030   unsexed       0.984      252  Australia Northern waters, 1980-86 
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 
0.00282 3.129   female     TL        276  Taiwan 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  Taiwan Off northeastern waters, 1984-85 
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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 = 9, geometric mean a = 0.0036, mean b = 3.10, SD log10(W) = 0.0000, SD log10(a) = 0.2786 SD b = 0.1118
Estimate weight for given length: (cm) = (g) 95% range - (g)
Search for more references on length-weight:    Scirus
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Last modified by d.santos 05/08/14