hhguide Posted May 26, 2009 Share Posted May 26, 2009 My brother and I caught two one was 26 and 1/2 inches and then the other was 27 inches. Both were very chucky just wondering what you guys think the weight might be? I have no idea where or how to guess. Thanks guys. Quote Link to comment Share on other sites More sharing options...
sheephead2 Posted May 26, 2009 Share Posted May 26, 2009 I lost one this walleye opener looked like 30inches or larger maybe state record cause I think MN state record is 11.4oz Man them babies fightGot this info from a bowfin HSOforumUsing empirical data we obtained and MS Excel Regression analysis, the best formula we have for estimating the weight of a bowfin is G^2*L/780 +0.75 = W, where G is the girth (circumference) in inches, L is the length in inches, and W is the weight in pounds. The prediction factor is 0.96, with 0 meaning the formula doesn't predict the data at all and 1 is a perfect prediction, so we are very close with this formula.The values in Table 1 were calculated with this. The girths we found in our dataset, expressed as a fraction of the length ranged from a low of .42*L to a high of .57*L so I restricted my table to these limits. If you have length only, the average girth is 0.492*L making the formula L^3/3221 + 0.75 = W. The prediction factor drops to 0.90, still pretty good and enough to let you know if you are near a state/class/world record that merits special attention. See Table 2 for these values. Quote Link to comment Share on other sites More sharing options...
carpmanjake Posted May 27, 2009 Share Posted May 27, 2009 a bowfin with an average girth that is 26 1/2" Long would weigh on average about 6.5 lbs. a 27"er with an average girth would weigh about 6.9 lbs.but if you had the girth i could get a more accurate weight. a 26.5" can weigh anywhere from 4.9lbs to 8.2lbs, depending on the girth. a 27" can weigh anywhere from 4.9 lbs to 8.5lbs Quote Link to comment Share on other sites More sharing options...
Muddog Posted May 31, 2009 Share Posted May 31, 2009 Here is one just under 7lbs. Tom M, and his (Crystal Trout) Bowfin. The old state record was a female around 31-32inches. Quote Link to comment Share on other sites More sharing options...
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