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Length-Weight Parameters for Heterotis niloticus
Length-weight (log a vs b) graph
    [n=11]
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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
0.01250 2.500   male     TL          Nigeria River Niger, Pategi, Kwara State 
0.02200 2.557   unsexed 10.5 - 70.0 SL  0.986  1.178   98  Ivory coast Ayamé I / 2004-2005. 
0.01800 2.672   unsexed 12.0 - 68.2 SL  0.985  0.417   134  Ivory coast River Bia (1995-97); Rivers Soumié, Eholié, Ehania and Noé, 2003-2005 
0.01700 2.678   unsexed 13.3 - 89.0 SL  0.931  0.228   222  Ivory coast Buyo / 1997-1998. 
0.01600 2.700   female     TL          Nigeria River Niger, Pategi, Kwara State 
0.04220 2.710   unsexed 20.0 - 76.0 SL  0.976      20  Burkina Faso Nakambé, Volta River, 2000 (July) 
0.02300 2.800   unsexed 22.0 - 67.0 SL  0.962      294  Burkina Faso Souru, Volta River, 2000 (July) 
0.01620 2.842   unsexed     TL  0.914      98  Burkina Faso Hippopotamus Pond 
0.01259 2.900   unsexed     TL  0.870      388  Nigeria Cross River inland wetlands / 2004-2006. 
0.01289 2.923   unsexed 8.4 - 38.7 TL  0.993      101  Benin Ouémé River Basin, 1999-2001 
0.01190 2.950   mixed     TL          Congo Oubangui 
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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 = 11, geometric mean a = 0.0182, mean b = 2.75, SD log10(W) = 0, SD log10(a) = 0.1575 SD b = 0.1330
Estimate weight for given length: (cm) = (g) 95% range - (g)
Search for more references on length-weight:    Scirus
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