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Length-Weight Parameters for Etmopterus spinax
[n=15]
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Length-weight (log a vs b) graph
a b Country Locality
Score a b Doubtful? Sex Length (cm) Length
type 		r2 SD b SD log10 a n Country Locality
0.00670 2.840   male 11.0 - 31.3 TL  0.988  0.090 0.1185 48  Turkey Antalya Bay / 2009-2010. 
0.00600 2.926   male 8.5 - 44.0 TL  0.980  0.042 -0.1139 475  off the south-western coast of Sicily / 2012-2019 
0.00466 2.930   male 10.0 - 29.3 TL  0.880  0.140   228  Turkey off Gökçeada Island, Northern Aegean Sea / 2019. 
0.00520 2.940   mixed 10.0 - 39.4 TL  0.973  0.080 0.1032 150  Turkey Antalya Bay / 2009-2010. 
0.00470 2.970   female 10.0 - 39.4 TL  0.968  0.100 0.1406 102  Turkey Antalya Bay / 2009-2010. 
0.00430 3.007   unsexed 10.9 - 45.1 TL  0.980      143  Northwestern Mediterranean / 2011-2013. 
0.00400 3.008   female 8.0 - 52.5 TL  0.980  0.025   1174  off the south-western coast of Sicily / 2012-2019 
0.00360 3.020   mixed 9.0 - 35.5 TL  0.920  0.070   575  Turkey off Gökçeada Island, Northern Aegean Sea / 2019. 
0.00328 3.060   female 9.0 - 35.5 TL  0.930  0.090   347  Turkey off Gökçeada Island, Northern Aegean Sea / 2019. 
0.00360 3.063   mixed 9.9 - 36.1 TL  0.990      277  Spain Gulf of Cadiz, 2009-11 
0.00290 3.065   unsexed 9.3 - 33.7 TL  0.957  0.063 0.0645 412  Spain Gulf of Cadiz / 2019-2022. 
0.00300 3.130   unsexed 10.4 - 48.5 TL  0.994      151  Spain Balearic Islands, 1995-96 
0.00187 3.212   unsexed 11.2 - 37.2 TL  0.960      78  Portugal Algarve, 1996-97 
0.00230 3.226   unsexed 10.6 - 45.0 TL  0.952  0.546   11  Turkey Saros Bay / 2005-2008. 
0.00180 3.240   unsexed               UK Scotland Off west coast 
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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 = 15, geometric mean a = 0.0037, mean b = 3.04, SD log10(W) = 0, SD log10(a) = 0.1584 SD b = 0.1105
Estimate weight for given length: (cm) = (g) 95% range - (g)
Search for more references on length-weight:    Scirus
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