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Length-Weight Parameters for Engraulis encrasicolus
Length-weight (log a vs b) graph
    [n=22]
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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
0.00899 2.860   mixed 8.0 - 16.0 TL        2915  Spain Gulf of Cádiz, 1969-71 
0.00560 3.051   male     TL  0.941      612  Spain Bay of Cadiz (1992) 
0.00530 3.072   mixed     TL        1117  Spain Bay of Cadiz/1992 
0.00480 3.111   female     TL  0.922      505  Spain Bay of Cadiz (1992) 
0.00480 3.112   female     TL        505  Spain Bay of Cadiz/1992 
0.00490 3.125   unsexed 7.2 - 19.4 TL  0.970      2293  Spain Gulf of Cadiz / 2009 - 2011 
0.00390 3.190   unsexed 3.6 - 14.2 TL  0.986  0.021 0.0360 278  Portugal Arade Estuary / 2004 - 2007 
0.00390 3.190   unsexed 3.6 - 14.2 TL  0.986  0.021 0.0360   Portugal Arade estuary, central Algarve, 2004-2007 
0.00370 3.209   male     TL  0.980      1181  Spain Bay of Cadiz (1990) 
0.00360 3.224   mixed     TL        2507  Spain Bay of Cadiz/1990 
0.00350 3.234   female     TL  0.980      1326  Spain Bay of Cadiz (1990) 
0.00340 3.249   male     TL  0.980        Spain Bay of Cadiz (1989-1992) 
0.00340 3.250   mixed     TL        6145  Spain Bay of Cadiz/1989-1992 
0.00330 3.254   female     TL  0.980      3037  Spain Bay of Cadiz (1989-1992) 
0.00320 3.279   male     TL  0.980      564  Spain Bay of Cadiz (1991) 
0.00310 3.281   female     TL  0.980        Spain Bay of Cadiz (1989) 
0.00300 3.283   mixed     TL        1033  Spain Bay of Cadiz/1991 
0.00300 3.288   mixed     TL        1488  Spain Bay of Cadiz/1989 
0.00310 3.290   female     TL  0.980      469  Spain Bay of Cadiz (1991) 
0.00280 3.318   male     TL  0.980      751  Spain Bay of Cadiz (1989) 
0.00200 3.443   unsexed     TL          Spain Gulf of Cadiz 
0.00100 3.448 YES  unsexed 9.4 - 19.0 TL  0.990      83  Spain Cantábrico 
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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 = 21, geometric mean a = 0.0038, mean b = 3.21, SD log10(W) = 0, SD log10(a) = 0.1229 SD b = 0.1095
Estimate weight for given length: (cm) = (g) 95% range - (g)
Search for more references on length-weight:    Scirus
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