More info | Plus d'info | Mais info Language: English | Chinese | French | Greek | Thai | FishBase
Length-Weight Parameters for Thunnus alalunga
Length-weight (log a vs b) graph
    [n=22]
Hide graph
a b Country Locality
Score a b Doubtful? Sex Length (cm) Length
type 		r2 SD b SD log10 a n Country Locality
0.09180 2.185   female 58.0 - 94.0 FL  0.867      77  Italy Tyrrhenian Sea, 2002 
0.08440 2.228   male 68.0 - 102.0 FL  0.881      59  Italy Tyrrhenian Sea, 2002 
0.00010 2.520 Yes  unsexed 70.5 - 92.4 FL  0.910  0.770   371  Greece North Aegean Sea, 2003-04 
0.09650 2.600   female 53.0 - 122.0 FL  0.910      227  Greece Ionian Sea, 1989-93 
0.01190 2.627 YES  unsexed               Somalia Equatorial Western Indian Ocean 
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 
0.00569 2.751 YES  unsexed     FL          Indian Ocean 
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 
0.02720 2.800   mixed     FL  0.719      815  New Zealand 2002 
0.04183 2.800   mixed 55.0 - 81.1 FL  0.970      868  Greece Hellenic Seas, 1986 
0.02580 2.860 YES  mixed     FL  0.910      7053  New Zealand 2001 
0.02570 2.877 YES  unsexed               France Bay of Biscay 
0.03119 2.880   Unsexed               Mediterranean Sea 
0.03119 2.880   mixed 55.5 - 89.0 FL  0.960      1742  Greece Aegean Sea, 1986-87; 89 
0.02960 2.928   Mixed 58.0 - 118.0 FL  0.980      293  central and western North Pacific 
0.01470 3.009 YES  mixed 32.0 - 88.0 FL          France Mediterranean coast 
0.01372 3.097   Unsexed               South Atlantic 
0.01339 3.107   Unsexed               North Atlantic 
0.00895 3.210   unsexed     FL          South Africa  
0.00630 3.280   unsexed               South Africa  
hide

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 = 0.0389, mean b = 2.77, SD log10(W) = 0, SD log10(a) = 0.3110 SD b = 0.2782
Estimate weight for given length: (cm) = (g) 95% range - (g)
Search for more references on length-weight:    Scirus
Back to Search    |    Back to Top