6743, RE: Record Class Bass Formula Posted by mteman, Tue Jul-12-05 12:37 PM
Dude this is a complicated one. From the Florida fish and wildlife conservation commision. (DFG)
log(weight, in grams) = -4.83 + 1.923 x log(total length, in mm) + 1.157 x log(girth, in mm)
The Florida formula would put Perry's WRB at almost 27 lbs.
Using the formula (L*G*G)/800 Perry's fish calculates to over 33 lbs. This one is generally used for trout/salmon shaped fish and does ok for those.
(G*G*L)/1200 is another widely used formula and is better for bass shaped fish. Perry's bass would calc to 25 lbs. using this one.
The IGFA uses (LxGxG)/914. Perry's record calcs to over 28 lbs.
The formula Terry posted here for the In Fisherman puts Perry's fish at around 21.5 if I remember my math right. Closest so far.
No formula will be exactly accurate. As you can see there can be a fairly large discrepency depending on which one you use.
I also calculated a few other well documented big fish and the results are all over the place.
The results from using differnt formulas for Jed Dickersons Lake Dixon bass go like this.
Weight = 21.69 lbs. L = 28", G = 26.75"
(G*G*L)/1200 = 17.48 (L*G*G)/800 = 25.04 (LxGxG)/914 = 21.92 FLA = 18.82 Terry's formula = 18.47
I hope I did those right :7
MT
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