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Length-Weight Parameters for Eutrigla gurnardus
Length-weight (log a vs b) graph
    [n=17]
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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 2.720   male 11.5 - 18.2   0.889      32  Portugal south coast 
0.01291 2.813   unsexed 1.6 - 22.5 TL  0.991      136  North Sea / 2003-2004. 
0.01700 2.860   female 11.1 - 18.0   0.889      51  Portugal south coast 
0.01120 2.877   unsexed 2.0 - 38.5 TL  0.989      722  North Sea / 2000-2011 
0.01050 2.962   unsexed 9.6 - 22.8 TL  0.962  0.080   67  Turkey northern Sea of Marmara, 2006-2007 (Nov.-Mar.) 
0.00990 2.974   mixed 6.0 - 24.5 TL  0.970  0.083 0.0925 232  off the south-western coast of Sicily / 2012-2019 
0.00900 2.994   unsexed 8.0 - 38.0 TL    0.946 0.0326 266  North-eastern Atlantic Ocean / 2013-2015. 
0.00610 3.076   male               France Gulf of Lion 
0.00716 3.077   male 8.0 - 23.0 FL        123  Greece G. Pagassitikos, 1976-77 
0.00440 3.081   mixed 8.3 - 25.8 TL  0.950      73  Greece G. N. Evvoikos and Trikeri Channel, 1994 
0.00620 3.100   unsexed 7.0 - 44.0 TL        747  UK Scotland North Sea & West Coast, 1976-84 
0.00544 3.130   unsexed 7.0 - 42.0 TL  0.996      133  France Bay of Biscay 
0.00410 3.170   female               France Gulf of Lion 
0.00597 3.174   female 8.0 - 27.0 FL        239  Greece G. Pagassitikos, 1976-77 
0.00466 3.189   unsexed 15.0 - 39.0 TL  0.984      40  France East and West Channel 
0.00360 3.263   unsexed 10.7 - 21.3 TL  0.981  1.217   118  Turkey Southern Agean Sea / 2009-2010. 
0.00290 3.490 yes  juvenile 5.7 - 9.9 TL  0.972      17  Spain Balearic Islands, 1995-96 
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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 = 0.0079, mean b = 3.02, SD log10(W) = 0, SD log10(a) = 0.2317 SD b = 0.1520
Estimate weight for given length: (cm) = (g) 95% range - (g)
Search for more references on length-weight:    Scirus
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