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Length-Weight Parameters for Scyliorhinus canicula
Length-weight (log a vs b) graph
    [n=15]
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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
0.00364 2.779 yes  juvenile 20.0 - 30.0 TL  0.992      285  France Bay of Biscay 
0.00330 3.010   Male 19.5 - 78.5 TL  0.972      277  North Sea / 1986-2008 
0.00308 3.029   unsexed 37.0 - 103.0 TL  0.970      376  France East and West Channel 
0.00210 3.128   unsexed 16.5 - 79.5 TL  0.975      683  North Sea / 1986-2008 
0.00190 3.139   unsexed 34.2 - 43.8 TL  0.931  1.366 2.1691 11  Greece Korinthiakos Gulf / 2008-2009 
0.00180 3.151   female 21.5 - 49.4 TL  0.947      62  Turkey North Aegean Sea, 1999-2000 
0.00160 3.160 yes  juvenile 7.5 - 42.1 TL  0.994      262  Spain Balearic Islands, 1995-96 
0.00170 3.180   unsexed 26.0 - 59.0 TL  0.869  1.229   993  Portugal off Algarve coast, 1998-00 
0.00150 3.191   mixed 9.5 - 62.2 TL  0.990      604  Spain Gulf of Cadiz, 2009-11 
0.00170 3.195   Female 16.5 - 79.5 TL  0.979      316  North Sea / 1986-2008 
0.00157 3.206   unsexed 10.2 - 54.4 TL  0.980      39  Portugal Algarve, 1996-97 
0.00150 3.209   male 23.8 - 62.9 TL  0.728      1239  Portugal off westean coast (Póvoado Varzim to Figueira da Foz, 1994, Nazaré to St André, 1997) 
0.00150 3.211   male 24.0 - 52.5 TL  0.965      48  Turkey North Aegean Sea, 1999-2000 
0.00120 3.260   unsexed 10.5 - 50.9 TL  0.990  0.020   637  Turkey North Aegean Sea, 2003 (March; July) 
0.00030 3.615   female 23.4 - 62.6 TL  0.832      1331  Portugal off westean coast (Póvoado Varzim to Figueira da Foz, 1994, Nazaré to St André, 1997) 
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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 = 13, geometric mean a = 0.0016, mean b = 3.19, SD log10(W) = 0.0245, SD log10(a) = 0.2322 SD b = 0.1349
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