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Length-Weight Parameters for Thunnus alalunga
Length-weight (log a vs b) graph
    [n=10]
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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
0.09650 2.600   female 53.0 - 122.0 FL  0.910      227  Greece Ionian Sea, 1989-93 
0.06580 2.690   mixed 44.0 - 122.0 FL  0.930      2932  Greece Hellenic Seas, 1989-93 
0.05290 2.750   male 60.2 - 88.0 FL  0.970      598  Greece Aegean Sea, 1989-93 
0.04880 2.760   male 59.0 - 84.0 FL  0.900      214  Greece Ionian Sea, 1989-93 
0.04530 2.790   female 57.9 - 86.0 FL  0.940      257  Greece Aegean Sea, 1989-93 
0.04183 2.800   mixed 55.0 - 81.1 FL  0.970      868  Greece Hellenic Seas, 1986 
0.03119 2.880   mixed 55.5 - 89.0 FL  0.960      1742  Greece Aegean Sea, 1986-87; 89 
0.03119 2.880   Unsexed               Mediterranean Sea 
0.01372 3.097   Unsexed               South Atlantic 
0.01339 3.107   Unsexed               North Atlantic 
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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 = 10, geometric mean a = 0.0427, mean b = 2.81, SD log10(W) = 0, SD log10(a) = 0.2319 SD b = 0.1371
Estimate weight for given length: (cm) = (g) 95% range - (g)
Search for more references on length-weight:    Scirus
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