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Length-Weight Parameters for Sciaena umbra
Length-weight (log a vs b) graph
    [n=8]
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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
0.02400 2.810   mixed 15.0 - 55.0 TL          Tunisia W. Mediterranean, Northern Tunisia 
0.01800 2.910   unsexed 22.0 - 43.0 TL  0.908  0.530 nan 16  France French Catalan coast / 2007-2010. 
0.01360 3.004   unsexed 14.7 - 40.4 TL  0.979  1.440   54  Turkey Southern Agean Sea / 2009-2010. 
0.03520 3.048   unsexed 18.1 - 41.2 TL  0.964      26  Croatia Eastern Adriatic, 1991-94 
0.03540 3.050   unsexed 18.1 - 41.4 TL  0.980      39  Croatia River Mirna estuary, northern Adriatic, 2000-2004 
0.00690 3.159 yes  juvenile 2.9 - 12.0 TL  0.977  1.171   12  Turkey Erdek Bay (27°20'- 27°52' E; 40°18'-40°28' N), Sea of Marmara, 2000-2001 
0.00550 3.230   unsexed 13.9 - 29.8 TL  0.983  0.436   24  Turkey Gökceada Island (northern Aegean Sea), 2004-2038 
0.00450 3.300   mixed     TL  0.960        Turkey off Trabzon / 2002-2003 
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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 = 7, geometric mean a = 0.0148, mean b = 3.06, SD log10(W) = 0, SD log10(a) = 0.3413 SD b = 0.1530
Estimate weight for given length: (cm) = (g) 95% range - (g)
Search for more references on length-weight:    Scirus
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