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Length-Weight Parameters for Dasyatis marmorata
Length-weight (log a vs b) graph
    [n=4]
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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
0.03400 3.021   unsexed 20.0 - 41.0 OT  0.936  0.380   21  Turkey Gulf of Antalya / 2009-2010. 
0.00370 3.070   unsexed   - 33.0 TL        1  Greece Mediterranean 
0.00200 3.233   unsexed 40.0 - 74.5 TL  0.857  0.634   21  Turkey Gulf of Antalya / 2009-2010. 
0.00400 3.592   unsexed 23.0 - 40.0 WD  0.930  0.474   21  Turkey Gulf of Antalya / 2009-2010. 
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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 = 4, geometric mean a = 0.0062, mean b = 3.25, SD log10(W) = 0.4283, SD log10(a) = 0.4910 SD b = 0.2326
Estimate weight for given length: (cm) = (g) 95% range - (g)
Search for more references on length-weight:    Scirus
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