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Length-Weight Parameters for Trichiurus lepturus
Length-weight (log a vs b) graph
    [n=28]
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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
0.00830 2.334   unsexed 20.5 - 58.8 TL  0.730  2.181   84  Turkey NE Mediterranean coast, 2001-2003 
0.06190 2.549 YES  Female     OT  0.976      724  Hong Kong South China Sea 
0.05630 2.571 YES  Male     OT  0.978      212  Hong Kong South China Sea 
0.03380 2.653   Unsexed 21.4 - 63.0 LP  0.966      111  Brazil Central coast, 1993-2000 
0.00100 2.908   unsexed 14.7 - 75.0 TL  0.988  0.014   209  Mexico Gulf of California (Southern Sinaloa and Nayarit), 2005-2007 
0.00090 2.969   unsexed 16.0 - 124.0 TL  0.903        Indonesia Western region 
0.01480 2.970   unsexed 2.0 - 89.6 OT  0.997  0.050 0.0699 5260  China Beibu Gulf / 2006-2007 
0.00069 2.974   mixed 25.9 - 64.0 TL  0.927  0.852 3.2860 28  Brazil Pará (0°S - 25°S), 2003-2004 
0.00055 3.050   unsexed     TL          India east coast, 1986-89 
0.00100 3.080   unsexed     TL        564  Malaysia Peninsular east coast, 1998 
0.00021 3.192   Unsexed 6.9 - 124.0 TL  0.945      485  Brazil Southeastern region (São Sebastião System), São Paulo, 1997 
0.00028 3.227 yes  unsexed     TL  0.903        Taiwan Southwest Taiwan, 1976-77 
0.00017 3.230   unsexed 5.0 - 155.0 TL          Brazil southern region 
0.00022 3.250   unsexed 59.3 - 112.0 TL        20  Colombia Gulf of Salamanca, 1995-97 
0.00020 3.260   unsexed     TL        1307  Malaysia Peninsular west coast 
0.00022 3.290   unsexed     TL          South Africa  
0.00077 3.320   unsexed 7.3 - 119.4 TL  0.971  0.070 0.0669 307  Brazil Parana´ state coast / 2004 - 2005 
0.00021 3.324   mixed 18.0 - 110.5 FL  0.949      105  New Caledonia  
0.00020 3.330   unsexed 23.9 - 73.5 TL  0.956      109  Benin  
0.00020 3.335   Unsexed 54.5 - 95.7 TL  0.954      27  Brazil Ilha de Paciência, Maranhão, 2006-2007 
0.00010 3.400   Unsexed 27.0 - 81.0 TL  0.964      115  Brazil Northern region, Pará, 1996-1997 
0.00015 3.427   unsexed       0.937        Philippines San Miguel Bay 
0.00011 3.447   unsexed     TL  0.980        Taiwan East Coast, 1976-77 
0.00007 3.478 Yes  Unsexed 8.9 - 150.0 TL  0.978      915  Brazil Rio Grande do Sul (28°-34°S) 
0.23600 3.480 yes  unsexed 28.0 - 105.0 TL        393  Cuba South Zone 
0.00006 3.611 yes  male 37.5 - 110.0 TL  0.935      81  Yemen Gulf of Aden and Red Sea, 1993-96 
0.00032 3.725 YES  unsexed       0.941        Taiwan Southwest coast,1976-77 
0.00002 3.813 yes  Female 43.0 - 122.0 TL  0.891      103  Yemen Gulf of Aden and Red Sea, 1993-96 
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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 = 20, geometric mean a = 0.0006, mean b = 3.14, SD log10(W) = 0.0000, SD log10(a) = 0.7250 SD b = 0.2729
Estimate weight for given length: (cm) = (g) 95% range - (g)
Search for more references on length-weight:    Scirus
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Last modified by d.santos 05/08/14